mercurial/revlog.py
author Sune Foldager <cryo@cyanite.org>
Wed, 18 May 2011 23:26:26 +0200
changeset 14365 a8e3931e3fb5
parent 14334 85c82ebc96a3
child 14371 ec2aae8b375d
permissions -rw-r--r--
revlog: linearize created changegroups in generaldelta revlogs This greatly improves the speed of the bundling process, and often reduces the bundle size considerably. (Although if the repository is already ordered, this has little effect on both time and bundle size.) For non-generaldelta clients, the reduced bundle size translates to a reduced repository size, similar to shrinking the revlogs (which uses the exact same algorithm). For generaldelta clients the difference is minor. When the new bundle format comes, reordering will not be necessary since we can then store the deltaparent relationsships directly. The eventual default behavior for clients and servers is presented in the table below, where "new" implies support for GD as well as the new bundle format: old client new client old server old bundle, no reorder old bundle, no reorder new server, non-GD old bundle, no reorder[1] old bundle, no reorder[2] new server, GD old bundle, reorder[3] new bundle, no reorder[4] [1] reordering is expensive on the server in this case, skip it [2] client can choose to do its own redelta here [3] reordering is needed because otherwise the pull does a lot of extra work on the server [4] reordering isn't needed because client can get deltabase in bundle format Currently, the default is to reorder on GD-servers, and not otherwise. A new setting, bundle.reorder, has been added to override the default reordering behavior. It can be set to either 'auto' (the default), or any true or false value as a standard boolean setting, to either force the reordering on or off regardless of generaldelta. Some timing data from a relatively branch test repository follows. All bundling is done with --all --type none options. Non-generaldelta, non-shrunk repo: ----------------------------------- Size: 276M Without reorder (default): Bundle time: 14.4 seconds Bundle size: 939M With reorder: Bundle time: 1 minute, 29.3 seconds Bundle size: 381M Generaldelta, non-shrunk repo: ----------------------------------- Size: 87M Without reorder: Bundle time: 2 minutes, 1.4 seconds Bundle size: 939M With reorder (default): Bundle time: 25.5 seconds Bundle size: 381M
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# revlog.py - storage back-end for mercurial
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#
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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"""Storage back-end for Mercurial.
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This provides efficient delta storage with O(1) retrieve and append
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and O(changes) merge between branches.
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"""
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# import stuff from node for others to import from revlog
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from node import bin, hex, nullid, nullrev, short #@UnusedImport
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from i18n import _
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import ancestor, mdiff, parsers, error, util, dagutil
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import struct, zlib, errno
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_pack = struct.pack
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_unpack = struct.unpack
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_compress = zlib.compress
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_decompress = zlib.decompress
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_sha = util.sha1
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# revlog header flags
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REVLOGV0 = 0
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REVLOGNG = 1
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REVLOGNGINLINEDATA = (1 << 16)
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REVLOGGENERALDELTA = (1 << 17)
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REVLOG_DEFAULT_FLAGS = REVLOGNGINLINEDATA
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REVLOG_DEFAULT_FORMAT = REVLOGNG
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REVLOG_DEFAULT_VERSION = REVLOG_DEFAULT_FORMAT | REVLOG_DEFAULT_FLAGS
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REVLOGNG_FLAGS = REVLOGNGINLINEDATA | REVLOGGENERALDELTA
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# revlog index flags
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REVIDX_KNOWN_FLAGS = 0
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# max size of revlog with inline data
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_maxinline = 131072
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_chunksize = 1048576
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RevlogError = error.RevlogError
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LookupError = error.LookupError
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def getoffset(q):
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    return int(q >> 16)
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def gettype(q):
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    return int(q & 0xFFFF)
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def offset_type(offset, type):
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    return long(long(offset) << 16 | type)
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nullhash = _sha(nullid)
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def hash(text, p1, p2):
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    """generate a hash from the given text and its parent hashes
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    This hash combines both the current file contents and its history
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    in a manner that makes it easy to distinguish nodes with the same
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    content in the revision graph.
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    """
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    # As of now, if one of the parent node is null, p2 is null
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    if p2 == nullid:
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        # deep copy of a hash is faster than creating one
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        s = nullhash.copy()
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        s.update(p1)
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    else:
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        # none of the parent nodes are nullid
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        l = [p1, p2]
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        l.sort()
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        s = _sha(l[0])
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        s.update(l[1])
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    s.update(text)
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    return s.digest()
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def compress(text):
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    """ generate a possibly-compressed representation of text """
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    if not text:
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        return ("", text)
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    l = len(text)
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    bin = None
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    if l < 44:
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        pass
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    elif l > 1000000:
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        # zlib makes an internal copy, thus doubling memory usage for
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        # large files, so lets do this in pieces
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        z = zlib.compressobj()
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        p = []
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        pos = 0
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        while pos < l:
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            pos2 = pos + 2**20
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            p.append(z.compress(text[pos:pos2]))
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            pos = pos2
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        p.append(z.flush())
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        if sum(map(len, p)) < l:
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            bin = "".join(p)
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    else:
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        bin = _compress(text)
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    if bin is None or len(bin) > l:
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        if text[0] == '\0':
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            return ("", text)
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        return ('u', text)
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    return ("", bin)
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def decompress(bin):
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    """ decompress the given input """
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    if not bin:
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        return bin
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    t = bin[0]
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    if t == '\0':
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        return bin
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    if t == 'x':
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        return _decompress(bin)
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    if t == 'u':
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        return bin[1:]
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    raise RevlogError(_("unknown compression type %r") % t)
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indexformatv0 = ">4l20s20s20s"
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v0shaoffset = 56
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class revlogoldio(object):
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    def __init__(self):
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        self.size = struct.calcsize(indexformatv0)
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    def parseindex(self, data, inline):
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        s = self.size
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        index = []
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        nodemap =  {nullid: nullrev}
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        n = off = 0
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        l = len(data)
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        while off + s <= l:
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            cur = data[off:off + s]
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            off += s
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            e = _unpack(indexformatv0, cur)
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            # transform to revlogv1 format
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            e2 = (offset_type(e[0], 0), e[1], -1, e[2], e[3],
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                  nodemap.get(e[4], nullrev), nodemap.get(e[5], nullrev), e[6])
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            index.append(e2)
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            nodemap[e[6]] = n
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            n += 1
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        # add the magic null revision at -1
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        index.append((0, 0, 0, -1, -1, -1, -1, nullid))
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   146
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        return index, nodemap, None
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    def packentry(self, entry, node, version, rev):
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        if gettype(entry[0]):
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            raise RevlogError(_("index entry flags need RevlogNG"))
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        e2 = (getoffset(entry[0]), entry[1], entry[3], entry[4],
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              node(entry[5]), node(entry[6]), entry[7])
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        return _pack(indexformatv0, *e2)
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   155
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# index ng:
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#  6 bytes: offset
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#  2 bytes: flags
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#  4 bytes: compressed length
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#  4 bytes: uncompressed length
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#  4 bytes: base rev
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#  4 bytes: link rev
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#  4 bytes: parent 1 rev
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#  4 bytes: parent 2 rev
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# 32 bytes: nodeid
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indexformatng = ">Qiiiiii20s12x"
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ngshaoffset = 32
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versionformat = ">I"
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   169
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class revlogio(object):
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    def __init__(self):
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        self.size = struct.calcsize(indexformatng)
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    def parseindex(self, data, inline):
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        # call the C implementation to parse the index data
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        index, cache = parsers.parse_index2(data, inline)
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        return index, None, cache
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    def packentry(self, entry, node, version, rev):
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        p = _pack(indexformatng, *entry)
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        if rev == 0:
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            p = _pack(versionformat, version) + p[4:]
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        return p
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   184
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class revlog(object):
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    """
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    the underlying revision storage object
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    A revlog consists of two parts, an index and the revision data.
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    The index is a file with a fixed record size containing
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    information on each revision, including its nodeid (hash), the
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    nodeids of its parents, the position and offset of its data within
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    the data file, and the revision it's based on. Finally, each entry
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    contains a linkrev entry that can serve as a pointer to external
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    data.
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   197
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    The revision data itself is a linear collection of data chunks.
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    Each chunk represents a revision and is usually represented as a
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    delta against the previous chunk. To bound lookup time, runs of
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    deltas are limited to about 2 times the length of the original
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    version data. This makes retrieval of a version proportional to
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    its size, or O(1) relative to the number of revisions.
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   204
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    Both pieces of the revlog are written to in an append-only
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    fashion, which means we never need to rewrite a file to insert or
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    remove data, and can use some simple techniques to avoid the need
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    for locking while reading.
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    """
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    def __init__(self, opener, indexfile):
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        """
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        create a revlog object
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   213
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        opener is a function that abstracts the file opening operation
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   215
        and can be used to implement COW semantics or the like.
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   216
        """
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        self.indexfile = indexfile
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        self.datafile = indexfile[:-2] + ".d"
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        self.opener = opener
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        self._cache = None
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   221
        self._basecache = (0, 0)
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   222
        self._chunkcache = (0, '')
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        self.index = []
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   224
        self._pcache = {}
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   225
        self._nodecache = {nullid: nullrev}
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diff changeset
   226
        self._nodepos = None
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   227
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   228
        v = REVLOG_DEFAULT_VERSION
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   229
        if hasattr(opener, 'options'):
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   230
            if 'revlogv1' in opener.options:
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   231
                if 'generaldelta' in opener.options:
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   232
                    v |= REVLOGGENERALDELTA
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   233
            else:
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   234
                v = 0
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   235
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   236
        i = ''
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        self._initempty = True
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   238
        try:
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parents: 1749
diff changeset
   239
            f = self.opener(self.indexfile)
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parents: 13239
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   240
            i = f.read()
13400
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   241
            f.close()
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   242
            if len(i) > 0:
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   243
                v = struct.unpack(versionformat, i[:4])[0]
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   244
                self._initempty = False
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parents: 1232
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   245
        except IOError, inst:
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parents: 1232
diff changeset
   246
            if inst.errno != errno.ENOENT:
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   247
                raise
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   248
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   249
        self.version = v
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   250
        self._inline = v & REVLOGNGINLINEDATA
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   251
        self._generaldelta = v & REVLOGGENERALDELTA
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        flags = v & ~0xFFFF
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   253
        fmt = v & 0xFFFF
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   254
        if fmt == REVLOGV0 and flags:
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   255
            raise RevlogError(_("index %s unknown flags %#04x for format v0")
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   256
                              % (self.indexfile, flags >> 16))
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   257
        elif fmt == REVLOGNG and flags & ~REVLOGNG_FLAGS:
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   258
            raise RevlogError(_("index %s unknown flags %#04x for revlogng")
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   259
                              % (self.indexfile, flags >> 16))
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        elif fmt > REVLOGNG:
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   261
            raise RevlogError(_("index %s unknown format %d")
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69cf255a55a1 Indentation cleanups for 2956948b81f3.
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                              % (self.indexfile, fmt))
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   263
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diff changeset
   264
        self._io = revlogio()
4971
3e6dae278c99 revlog: regroup parsing code
Matt Mackall <mpm@selenic.com>
parents: 4920
diff changeset
   265
        if self.version == REVLOGV0:
4972
8d0cf46e0dc6 revlog: add revlogio interface
Matt Mackall <mpm@selenic.com>
parents: 4971
diff changeset
   266
            self._io = revlogoldio()
13265
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
   267
        try:
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
   268
            d = self._io.parseindex(i, self._inline)
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
   269
        except (ValueError, IndexError):
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
   270
            raise RevlogError(_("index %s is corrupted") % (self.indexfile))
13268
fff12b3d953a revlog: explicit test and explicit variable names
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13267
diff changeset
   271
        self.index, nodemap, self._chunkcache = d
fff12b3d953a revlog: explicit test and explicit variable names
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13267
diff changeset
   272
        if nodemap is not None:
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   273
            self.nodemap = self._nodecache = nodemap
13265
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
   274
        if not self._chunkcache:
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
   275
            self._chunkclear()
116
e484cd5ec282 Only use lazy indexing for big indices and avoid the overhead of the
mpm@selenic.com
parents: 115
diff changeset
   276
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   277
    def tip(self):
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   278
        return self.node(len(self.index) - 2)
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
   279
    def __len__(self):
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   280
        return len(self.index) - 1
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
   281
    def __iter__(self):
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
   282
        for i in xrange(len(self)):
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
   283
            yield i
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   284
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   285
    @util.propertycache
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   286
    def nodemap(self):
14064
e4bfb9c337f3 remove unused imports and variables
Alexander Solovyov <alexander@solovyov.net>
parents: 13831
diff changeset
   287
        self.rev(self.node(0))
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   288
        return self._nodecache
13259
3b616dfa4b17 revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents: 13258
diff changeset
   289
3b616dfa4b17 revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents: 13258
diff changeset
   290
    def rev(self, node):
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   291
        try:
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   292
            return self._nodecache[node]
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   293
        except KeyError:
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   294
            n = self._nodecache
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   295
            i = self.index
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   296
            p = self._nodepos
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   297
            if p is None:
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   298
                p = len(i) - 2
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   299
            for r in xrange(p, -1, -1):
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   300
                v = i[r][7]
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   301
                n[v] = r
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   302
                if v == node:
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   303
                    self._nodepos = r - 1
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   304
                    return r
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   305
            raise LookupError(node, self.indexfile, _('no node'))
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   306
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   307
    def node(self, rev):
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   308
        return self.index[rev][7]
7361
9fe97eea5510 linkrev: take a revision number rather than a hash
Matt Mackall <mpm@selenic.com>
parents: 7233
diff changeset
   309
    def linkrev(self, rev):
9fe97eea5510 linkrev: take a revision number rather than a hash
Matt Mackall <mpm@selenic.com>
parents: 7233
diff changeset
   310
        return self.index[rev][4]
2
ecf3fd948051 Handle nullid better for ancestor
mpm@selenic.com
parents: 0
diff changeset
   311
    def parents(self, node):
7363
9d28ff207030 revlog: speed up parents()
Matt Mackall <mpm@selenic.com>
parents: 7362
diff changeset
   312
        i = self.index
9d28ff207030 revlog: speed up parents()
Matt Mackall <mpm@selenic.com>
parents: 7362
diff changeset
   313
        d = i[self.rev(node)]
9d28ff207030 revlog: speed up parents()
Matt Mackall <mpm@selenic.com>
parents: 7362
diff changeset
   314
        return i[d[5]][7], i[d[6]][7] # map revisions to nodes inline
2489
568e58eed096 Add revlog.parentrevs function.
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 2354
diff changeset
   315
    def parentrevs(self, rev):
4979
06abdaf78788 revlog: add a magic null revision to our index
Matt Mackall <mpm@selenic.com>
parents: 4978
diff changeset
   316
        return self.index[rev][5:7]
2072
74d3f5336b66 Implement revlogng.
mason@suse.com
parents: 2002
diff changeset
   317
    def start(self, rev):
5006
c2febf5420e9 revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents: 5005
diff changeset
   318
        return int(self.index[rev][0] >> 16)
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   319
    def end(self, rev):
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   320
        return self.start(rev) + self.length(rev)
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   321
    def length(self, rev):
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   322
        return self.index[rev][1]
14325
f9e91a400c16 revlog: restore the base method
Matt Mackall <mpm@selenic.com>
parents: 14301
diff changeset
   323
    def base(self, rev):
f9e91a400c16 revlog: restore the base method
Matt Mackall <mpm@selenic.com>
parents: 14301
diff changeset
   324
        return self.index[rev][3]
14252
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
   325
    def chainbase(self, rev):
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
   326
        index = self.index
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
   327
        base = index[rev][3]
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
   328
        while base != rev:
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
   329
            rev = base
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
   330
            base = index[rev][3]
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
   331
        return base
11693
ff33f937a7da revlog: add a flags method that returns revision flags
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11670
diff changeset
   332
    def flags(self, rev):
ff33f937a7da revlog: add a flags method that returns revision flags
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11670
diff changeset
   333
        return self.index[rev][0] & 0xFFFF
12024
56a7721ee3ec revlog: add rawsize(), identical to size() but not subclassed by filelog
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12023
diff changeset
   334
    def rawsize(self, rev):
2078
441ea218414e Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents: 2077
diff changeset
   335
        """return the length of the uncompressed text for a given revision"""
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
   336
        l = self.index[rev][2]
2078
441ea218414e Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents: 2077
diff changeset
   337
        if l >= 0:
441ea218414e Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents: 2077
diff changeset
   338
            return l
441ea218414e Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents: 2077
diff changeset
   339
441ea218414e Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents: 2077
diff changeset
   340
        t = self.revision(self.node(rev))
441ea218414e Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents: 2077
diff changeset
   341
        return len(t)
12024
56a7721ee3ec revlog: add rawsize(), identical to size() but not subclassed by filelog
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12023
diff changeset
   342
    size = rawsize
2078
441ea218414e Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents: 2077
diff changeset
   343
3630
508036290b00 revlog: reachable actually takes a node
Matt Mackall <mpm@selenic.com>
parents: 3585
diff changeset
   344
    def reachable(self, node, stop=None):
8464
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
   345
        """return the set of all nodes ancestral to a given node, including
3683
b0fd43effdb3 add docstring to reachable
Matt Mackall <mpm@selenic.com>
parents: 3680
diff changeset
   346
         the node itself, stopping when stop is matched"""
8464
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
   347
        reachable = set((node,))
3630
508036290b00 revlog: reachable actually takes a node
Matt Mackall <mpm@selenic.com>
parents: 3585
diff changeset
   348
        visit = [node]
1074
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   349
        if stop:
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   350
            stopn = self.rev(stop)
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   351
        else:
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   352
            stopn = 0
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   353
        while visit:
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   354
            n = visit.pop(0)
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   355
            if n == stop:
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   356
                continue
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   357
            if n == nullid:
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   358
                continue
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   359
            for p in self.parents(n):
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   360
                if self.rev(p) < stopn:
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   361
                    continue
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   362
                if p not in reachable:
8464
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
   363
                    reachable.add(p)
1074
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   364
                    visit.append(p)
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   365
        return reachable
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents: 1073
diff changeset
   366
6872
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   367
    def ancestors(self, *revs):
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   368
        """Generate the ancestors of 'revs' in reverse topological order.
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   369
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   370
        Yield a sequence of revision numbers starting with the parents
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   371
        of each revision in revs, i.e., each revision is *not* considered
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   372
        an ancestor of itself.  Results are in breadth-first order:
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   373
        parents of each rev in revs, then parents of those, etc.  Result
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   374
        does not include the null revision."""
6872
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   375
        visit = list(revs)
8150
bbc24c0753a0 util: use built-in set and frozenset
Martin Geisler <mg@lazybytes.net>
parents: 8073
diff changeset
   376
        seen = set([nullrev])
6872
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   377
        while visit:
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   378
            for parent in self.parentrevs(visit.pop(0)):
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   379
                if parent not in seen:
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   380
                    visit.append(parent)
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   381
                    seen.add(parent)
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   382
                    yield parent
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   383
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   384
    def descendants(self, *revs):
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   385
        """Generate the descendants of 'revs' in revision order.
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   386
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   387
        Yield a sequence of revision numbers starting with a child of
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   388
        some rev in revs, i.e., each revision is *not* considered a
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   389
        descendant of itself.  Results are ordered by revision number (a
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   390
        topological sort)."""
12950
2405b4a5964a revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12949
diff changeset
   391
        first = min(revs)
2405b4a5964a revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12949
diff changeset
   392
        if first == nullrev:
2405b4a5964a revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12949
diff changeset
   393
            for i in self:
2405b4a5964a revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12949
diff changeset
   394
                yield i
2405b4a5964a revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12949
diff changeset
   395
            return
2405b4a5964a revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12949
diff changeset
   396
8150
bbc24c0753a0 util: use built-in set and frozenset
Martin Geisler <mg@lazybytes.net>
parents: 8073
diff changeset
   397
        seen = set(revs)
12950
2405b4a5964a revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12949
diff changeset
   398
        for i in xrange(first + 1, len(self)):
6872
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   399
            for x in self.parentrevs(i):
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   400
                if x != nullrev and x in seen:
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   401
                    seen.add(i)
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   402
                    yield i
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   403
                    break
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   404
13741
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   405
    def findcommonmissing(self, common=None, heads=None):
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   406
        """Return a tuple of the ancestors of common and the ancestors of heads
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   407
        that are not ancestors of common.
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   408
13741
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   409
        More specifically, the second element is a list of nodes N such that
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   410
        every N satisfies the following constraints:
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   411
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   412
          1. N is an ancestor of some node in 'heads'
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   413
          2. N is not an ancestor of any node in 'common'
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   414
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   415
        The list is sorted by revision number, meaning it is
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   416
        topologically sorted.
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   417
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   418
        'heads' and 'common' are both lists of node IDs.  If heads is
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   419
        not supplied, uses all of the revlog's heads.  If common is not
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   420
        supplied, uses nullid."""
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   421
        if common is None:
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   422
            common = [nullid]
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   423
        if heads is None:
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   424
            heads = self.heads()
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   425
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   426
        common = [self.rev(n) for n in common]
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   427
        heads = [self.rev(n) for n in heads]
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   428
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   429
        # we want the ancestors, but inclusive
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
   430
        has = set(self.ancestors(*common))
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
   431
        has.add(nullrev)
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
   432
        has.update(common)
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   433
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   434
        # take all ancestors from heads that aren't in has
8453
d1ca637b0773 revlog.missing(): use sets instead of a dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8391
diff changeset
   435
        missing = set()
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   436
        visit = [r for r in heads if r not in has]
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   437
        while visit:
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   438
            r = visit.pop(0)
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   439
            if r in missing:
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   440
                continue
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   441
            else:
8453
d1ca637b0773 revlog.missing(): use sets instead of a dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8391
diff changeset
   442
                missing.add(r)
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   443
                for p in self.parentrevs(r):
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   444
                    if p not in has:
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   445
                        visit.append(p)
8453
d1ca637b0773 revlog.missing(): use sets instead of a dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8391
diff changeset
   446
        missing = list(missing)
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   447
        missing.sort()
13741
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   448
        return has, [self.node(r) for r in missing]
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   449
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   450
    def findmissing(self, common=None, heads=None):
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   451
        """Return the ancestors of heads that are not ancestors of common.
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   452
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   453
        More specifically, return a list of nodes N such that every N
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   454
        satisfies the following constraints:
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   455
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   456
          1. N is an ancestor of some node in 'heads'
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   457
          2. N is not an ancestor of any node in 'common'
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   458
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   459
        The list is sorted by revision number, meaning it is
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   460
        topologically sorted.
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   461
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   462
        'heads' and 'common' are both lists of node IDs.  If heads is
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   463
        not supplied, uses all of the revlog's heads.  If common is not
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   464
        supplied, uses nullid."""
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   465
        _common, missing = self.findcommonmissing(common, heads)
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   466
        return missing
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   467
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   468
    def nodesbetween(self, roots=None, heads=None):
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   469
        """Return a topological path from 'roots' to 'heads'.
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   470
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   471
        Return a tuple (nodes, outroots, outheads) where 'nodes' is a
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   472
        topologically sorted list of all nodes N that satisfy both of
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   473
        these constraints:
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   474
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   475
          1. N is a descendant of some node in 'roots'
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   476
          2. N is an ancestor of some node in 'heads'
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   477
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   478
        Every node is considered to be both a descendant and an ancestor
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   479
        of itself, so every reachable node in 'roots' and 'heads' will be
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   480
        included in 'nodes'.
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   481
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   482
        'outroots' is the list of reachable nodes in 'roots', i.e., the
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   483
        subset of 'roots' that is returned in 'nodes'.  Likewise,
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   484
        'outheads' is the subset of 'heads' that is also in 'nodes'.
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   485
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   486
        'roots' and 'heads' are both lists of node IDs.  If 'roots' is
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   487
        unspecified, uses nullid as the only root.  If 'heads' is
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   488
        unspecified, uses list of all of the revlog's heads."""
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
   489
        nonodes = ([], [], [])
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   490
        if roots is not None:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   491
            roots = list(roots)
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
   492
            if not roots:
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
   493
                return nonodes
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   494
            lowestrev = min([self.rev(n) for n in roots])
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   495
        else:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   496
            roots = [nullid] # Everybody's a descendent of nullid
3578
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3508
diff changeset
   497
            lowestrev = nullrev
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3508
diff changeset
   498
        if (lowestrev == nullrev) and (heads is None):
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   499
            # We want _all_ the nodes!
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
   500
            return ([self.node(r) for r in self], [nullid], list(self.heads()))
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   501
        if heads is None:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   502
            # All nodes are ancestors, so the latest ancestor is the last
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   503
            # node.
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
   504
            highestrev = len(self) - 1
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   505
            # Set ancestors to None to signal that every node is an ancestor.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   506
            ancestors = None
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   507
            # Set heads to an empty dictionary for later discovery of heads
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   508
            heads = {}
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   509
        else:
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
   510
            heads = list(heads)
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
   511
            if not heads:
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
   512
                return nonodes
8464
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
   513
            ancestors = set()
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   514
            # Turn heads into a dictionary so we can remove 'fake' heads.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   515
            # Also, later we will be using it to filter out the heads we can't
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   516
            # find from roots.
14219
c33427080671 revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents: 14208
diff changeset
   517
            heads = dict.fromkeys(heads, False)
3360
ef8307585b41 nodesbetween: fix a bug with duplicate heads
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3335
diff changeset
   518
            # Start at the top and keep marking parents until we're done.
8163
62d7287fe6b0 rebase, revlog: use set(x) instead of set(x.keys())
Martin Geisler <mg@lazybytes.net>
parents: 8153
diff changeset
   519
            nodestotag = set(heads)
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   520
            # Remember where the top was so we can use it as a limit later.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   521
            highestrev = max([self.rev(n) for n in nodestotag])
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   522
            while nodestotag:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   523
                # grab a node to tag
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   524
                n = nodestotag.pop()
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   525
                # Never tag nullid
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   526
                if n == nullid:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   527
                    continue
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   528
                # A node's revision number represents its place in a
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   529
                # topologically sorted list of nodes.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   530
                r = self.rev(n)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   531
                if r >= lowestrev:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   532
                    if n not in ancestors:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   533
                        # If we are possibly a descendent of one of the roots
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   534
                        # and we haven't already been marked as an ancestor
8464
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
   535
                        ancestors.add(n) # Mark as ancestor
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   536
                        # Add non-nullid parents to list of nodes to tag.
8153
616f20e1004a revlog: let nodestotag be a set instead of a list
Martin Geisler <mg@lazybytes.net>
parents: 8152
diff changeset
   537
                        nodestotag.update([p for p in self.parents(n) if
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   538
                                           p != nullid])
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   539
                    elif n in heads: # We've seen it before, is it a fake head?
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   540
                        # So it is, real heads should not be the ancestors of
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   541
                        # any other heads.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   542
                        heads.pop(n)
1459
106fdec8e1fb Fix small bug in nodesbetween if heads is [nullid].
Eric Hopper <hopper@omnifarious.org>
parents: 1458
diff changeset
   543
            if not ancestors:
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
   544
                return nonodes
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   545
            # Now that we have our set of ancestors, we want to remove any
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   546
            # roots that are not ancestors.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   547
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   548
            # If one of the roots was nullid, everything is included anyway.
3578
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3508
diff changeset
   549
            if lowestrev > nullrev:
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   550
                # But, since we weren't, let's recompute the lowest rev to not
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   551
                # include roots that aren't ancestors.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   552
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   553
                # Filter out roots that aren't ancestors of heads
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   554
                roots = [n for n in roots if n in ancestors]
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   555
                # Recompute the lowest revision
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   556
                if roots:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   557
                    lowestrev = min([self.rev(n) for n in roots])
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   558
                else:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   559
                    # No more roots?  Return empty list
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
   560
                    return nonodes
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   561
            else:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   562
                # We are descending from nullid, and don't need to care about
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   563
                # any other roots.
3578
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3508
diff changeset
   564
                lowestrev = nullrev
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   565
                roots = [nullid]
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
   566
        # Transform our roots list into a set.
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
   567
        descendents = set(roots)
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   568
        # Also, keep the original roots so we can filter out roots that aren't
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   569
        # 'real' roots (i.e. are descended from other roots).
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   570
        roots = descendents.copy()
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   571
        # Our topologically sorted list of output nodes.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   572
        orderedout = []
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   573
        # Don't start at nullid since we don't want nullid in our output list,
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   574
        # and if nullid shows up in descedents, empty parents will look like
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   575
        # they're descendents.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   576
        for r in xrange(max(lowestrev, 0), highestrev + 1):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   577
            n = self.node(r)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   578
            isdescendent = False
3578
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3508
diff changeset
   579
            if lowestrev == nullrev:  # Everybody is a descendent of nullid
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   580
                isdescendent = True
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   581
            elif n in descendents:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   582
                # n is already a descendent
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   583
                isdescendent = True
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   584
                # This check only needs to be done here because all the roots
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   585
                # will start being marked is descendents before the loop.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   586
                if n in roots:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   587
                    # If n was a root, check if it's a 'real' root.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   588
                    p = tuple(self.parents(n))
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   589
                    # If any of its parents are descendents, it's not a root.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   590
                    if (p[0] in descendents) or (p[1] in descendents):
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
   591
                        roots.remove(n)
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   592
            else:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   593
                p = tuple(self.parents(n))
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   594
                # A node is a descendent if either of its parents are
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   595
                # descendents.  (We seeded the dependents list with the roots
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   596
                # up there, remember?)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   597
                if (p[0] in descendents) or (p[1] in descendents):
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
   598
                    descendents.add(n)
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   599
                    isdescendent = True
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   600
            if isdescendent and ((ancestors is None) or (n in ancestors)):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   601
                # Only include nodes that are both descendents and ancestors.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   602
                orderedout.append(n)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   603
                if (ancestors is not None) and (n in heads):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   604
                    # We're trying to figure out which heads are reachable
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   605
                    # from roots.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   606
                    # Mark this head as having been reached
14219
c33427080671 revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents: 14208
diff changeset
   607
                    heads[n] = True
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   608
                elif ancestors is None:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   609
                    # Otherwise, we're trying to discover the heads.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   610
                    # Assume this is a head because if it isn't, the next step
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   611
                    # will eventually remove it.
14219
c33427080671 revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents: 14208
diff changeset
   612
                    heads[n] = True
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   613
                    # But, obviously its parents aren't.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   614
                    for p in self.parents(n):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   615
                        heads.pop(p, None)
14219
c33427080671 revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents: 14208
diff changeset
   616
        heads = [n for n, flag in heads.iteritems() if flag]
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
   617
        roots = list(roots)
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   618
        assert orderedout
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   619
        assert roots
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   620
        assert heads
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   621
        return (orderedout, roots, heads)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
   622
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
   623
    def headrevs(self):
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
   624
        count = len(self)
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
   625
        if not count:
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
   626
            return [nullrev]
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
   627
        ishead = [1] * (count + 1)
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
   628
        index = self.index
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
   629
        for r in xrange(count):
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
   630
            e = index[r]
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
   631
            ishead[e[5]] = ishead[e[6]] = 0
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
   632
        return [r for r in xrange(count) if ishead[r]]
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
   633
3923
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
   634
    def heads(self, start=None, stop=None):
1550
ccb9b62de892 add a -r/--rev option to heads to show only heads descendant from rev
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1535
diff changeset
   635
        """return the list of all nodes that have no children
1551
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
   636
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
   637
        if start is specified, only heads that are descendants of
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
   638
        start will be returned
3923
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
   639
        if stop is specified, it will consider all the revs from stop
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
   640
        as if they had no children
1551
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
   641
        """
4991
9c8c42bcf17a revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents: 4990
diff changeset
   642
        if start is None and stop is None:
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
   643
            if not len(self):
4991
9c8c42bcf17a revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents: 4990
diff changeset
   644
                return [nullid]
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
   645
            return [self.node(r) for r in self.headrevs()]
4991
9c8c42bcf17a revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents: 4990
diff changeset
   646
1551
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
   647
        if start is None:
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
   648
            start = nullid
3923
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
   649
        if stop is None:
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
   650
            stop = []
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
   651
        stoprevs = set([self.rev(n) for n in stop])
1550
ccb9b62de892 add a -r/--rev option to heads to show only heads descendant from rev
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1535
diff changeset
   652
        startrev = self.rev(start)
8464
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
   653
        reachable = set((startrev,))
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
   654
        heads = set((startrev,))
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   655
2490
6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 2489
diff changeset
   656
        parentrevs = self.parentrevs
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
   657
        for r in xrange(startrev + 1, len(self)):
2490
6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 2489
diff changeset
   658
            for p in parentrevs(r):
6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 2489
diff changeset
   659
                if p in reachable:
3923
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
   660
                    if r not in stoprevs:
8464
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
   661
                        reachable.add(r)
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
   662
                    heads.add(r)
3923
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
   663
                if p in heads and p not in stoprevs:
8464
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
   664
                    heads.remove(p)
3923
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
   665
2490
6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 2489
diff changeset
   666
        return [self.node(r) for r in heads]
370
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
   667
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
   668
    def children(self, node):
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   669
        """find the children of a given node"""
370
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
   670
        c = []
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
   671
        p = self.rev(node)
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
   672
        for r in range(p + 1, len(self)):
4746
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
   673
            prevs = [pr for pr in self.parentrevs(r) if pr != nullrev]
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
   674
            if prevs:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
   675
                for pr in prevs:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
   676
                    if pr == p:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
   677
                        c.append(self.node(r))
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
   678
            elif p == nullrev:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
   679
                c.append(self.node(r))
370
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
   680
        return c
515
03f27b1381f9 Whitespace cleanups
mpm@selenic.com
parents: 484
diff changeset
   681
10897
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   682
    def descendant(self, start, end):
12949
6878eaa5a40d revlog: if start is nullrev, end is always a descendant
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12890
diff changeset
   683
        if start == nullrev:
6878eaa5a40d revlog: if start is nullrev, end is always a descendant
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12890
diff changeset
   684
            return True
10897
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   685
        for i in self.descendants(start):
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   686
            if i == end:
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   687
                return True
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   688
            elif i > end:
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   689
                break
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   690
        return False
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   691
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   692
    def ancestor(self, a, b):
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   693
        """calculate the least common ancestor of nodes a and b"""
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   694
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   695
        # fast path, check if it is a descendant
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   696
        a, b = self.rev(a), self.rev(b)
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   697
        start, end = sorted((a, b))
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   698
        if self.descendant(start, end):
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   699
            return self.node(start)
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   700
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   701
        def parents(rev):
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   702
            return [p for p in self.parentrevs(rev) if p != nullrev]
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   703
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   704
        c = ancestor.ancestor(a, b, parents)
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   705
        if c is None:
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   706
            return nullid
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   707
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   708
        return self.node(c)
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
   709
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   710
    def _match(self, id):
3210
7240f9e47144 correctly find the type of 'id' in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3157
diff changeset
   711
        if isinstance(id, (long, int)):
3156
d01e4cb2f5f2 cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3139
diff changeset
   712
            # rev
2641
156fb1feab62 lookup should allow -1 to represent nullid (if passed an int as arg)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 2600
diff changeset
   713
            return self.node(id)
3438
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
   714
        if len(id) == 20:
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
   715
            # possibly a binary node
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
   716
            # odds of a binary node being all hex in ASCII are 1 in 10**25
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
   717
            try:
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
   718
                node = id
7874
d812029cda85 cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 7873
diff changeset
   719
                self.rev(node) # quick search the index
3438
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
   720
                return node
3930
01d98d68d697 Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents: 3928
diff changeset
   721
            except LookupError:
3438
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
   722
                pass # may be partial hex id
36
da28286bf6b7 Add smart node lookup by substring or by rev number
mpm@selenic.com
parents: 26
diff changeset
   723
        try:
3156
d01e4cb2f5f2 cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3139
diff changeset
   724
            # str(rev)
36
da28286bf6b7 Add smart node lookup by substring or by rev number
mpm@selenic.com
parents: 26
diff changeset
   725
            rev = int(id)
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   726
            if str(rev) != id:
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   727
                raise ValueError
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   728
            if rev < 0:
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
   729
                rev = len(self) + rev
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
   730
            if rev < 0 or rev >= len(self):
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   731
                raise ValueError
36
da28286bf6b7 Add smart node lookup by substring or by rev number
mpm@selenic.com
parents: 26
diff changeset
   732
            return self.node(rev)
469
e205194ca7ef Various node id lookup tweaks
mpm@selenic.com
parents: 451
diff changeset
   733
        except (ValueError, OverflowError):
3156
d01e4cb2f5f2 cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3139
diff changeset
   734
            pass
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   735
        if len(id) == 40:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   736
            try:
3438
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
   737
                # a full hex nodeid?
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
   738
                node = bin(id)
7874
d812029cda85 cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 7873
diff changeset
   739
                self.rev(node)
3157
4fe41a9e4591 optimize revlog.lookup when passed hex(node)[:...]
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3156
diff changeset
   740
                return node
7062
efc579fdaf69 provide nicer feedback when an unknown node id is passed to a command
Sune Foldager <cryo@cyanite.org>
parents: 6912
diff changeset
   741
            except (TypeError, LookupError):
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   742
                pass
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   743
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   744
    def _partialmatch(self, id):
13258
c2661863f16f revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents: 13254
diff changeset
   745
        if id in self._pcache:
c2661863f16f revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents: 13254
diff changeset
   746
            return self._pcache[id]
c2661863f16f revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents: 13254
diff changeset
   747
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   748
        if len(id) < 40:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   749
            try:
3438
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
   750
                # hex(node)[:...]
9029
0001e49f1c11 compat: use // for integer division
Alejandro Santos <alejolp@alejolp.com>
parents: 8658
diff changeset
   751
                l = len(id) // 2  # grab an even number of digits
13259
3b616dfa4b17 revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents: 13258
diff changeset
   752
                prefix = bin(id[:l * 2])
3b616dfa4b17 revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents: 13258
diff changeset
   753
                nl = [e[7] for e in self.index if e[7].startswith(prefix)]
7365
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
   754
                nl = [n for n in nl if hex(n).startswith(id)]
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
   755
                if len(nl) > 0:
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
   756
                    if len(nl) == 1:
13258
c2661863f16f revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents: 13254
diff changeset
   757
                        self._pcache[id] = nl[0]
7365
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
   758
                        return nl[0]
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
   759
                    raise LookupError(id, self.indexfile,
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
   760
                                      _('ambiguous identifier'))
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
   761
                return None
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   762
            except TypeError:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   763
                pass
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   764
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   765
    def lookup(self, id):
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   766
        """locate a node based on:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   767
            - revision number or str(revision number)
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   768
            - nodeid or subset of hex nodeid
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   769
        """
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   770
        n = self._match(id)
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   771
        if n is not None:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   772
            return n
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   773
        n = self._partialmatch(id)
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   774
        if n:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
   775
            return n
515
03f27b1381f9 Whitespace cleanups
mpm@selenic.com
parents: 484
diff changeset
   776
6228
c0c4c7b1e8d3 revlog: report node and file when lookup fails
Matt Mackall <mpm@selenic.com>
parents: 6212
diff changeset
   777
        raise LookupError(id, self.indexfile, _('no match found'))
36
da28286bf6b7 Add smart node lookup by substring or by rev number
mpm@selenic.com
parents: 26
diff changeset
   778
2890
5df3e5cf16bc Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents: 2859
diff changeset
   779
    def cmp(self, node, text):
11539
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 11323
diff changeset
   780
        """compare text with a given file revision
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 11323
diff changeset
   781
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 11323
diff changeset
   782
        returns True if text is different than what is stored.
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 11323
diff changeset
   783
        """
2890
5df3e5cf16bc Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents: 2859
diff changeset
   784
        p1, p2 = self.parents(node)
5df3e5cf16bc Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents: 2859
diff changeset
   785
        return hash(text, p1, p2) != node
5df3e5cf16bc Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents: 2859
diff changeset
   786
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   787
    def _addchunk(self, offset, data):
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   788
        o, d = self._chunkcache
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   789
        # try to add to existing cache
13253
61c9bc3da402 revlog: remove lazy index
Matt Mackall <mpm@selenic.com>
parents: 13239
diff changeset
   790
        if o + len(d) == offset and len(d) + len(data) < _chunksize:
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   791
            self._chunkcache = o, d + data
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   792
        else:
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   793
            self._chunkcache = offset, data
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   794
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   795
    def _loadchunk(self, offset, length):
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   796
        if self._inline:
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   797
            df = self.opener(self.indexfile)
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   798
        else:
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   799
            df = self.opener(self.datafile)
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   800
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   801
        readahead = max(65536, length)
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   802
        df.seek(offset)
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   803
        d = df.read(readahead)
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   804
        self._addchunk(offset, d)
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   805
        if readahead > length:
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   806
            return d[:length]
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   807
        return d
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   808
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   809
    def _getchunk(self, offset, length):
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   810
        o, d = self._chunkcache
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   811
        l = len(d)
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   812
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   813
        # is it in the cache?
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   814
        cachestart = offset - o
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   815
        cacheend = cachestart + length
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   816
        if cachestart >= 0 and cacheend <= l:
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   817
            if cachestart == 0 and cacheend == l:
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   818
                return d # avoid a copy
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   819
            return d[cachestart:cacheend]
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   820
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   821
        return self._loadchunk(offset, length)
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
   822
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   823
    def _chunkraw(self, startrev, endrev):
8318
6b8513f8274a revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents: 8317
diff changeset
   824
        start = self.start(startrev)
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   825
        length = self.end(endrev) - start
8318
6b8513f8274a revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents: 8317
diff changeset
   826
        if self._inline:
6b8513f8274a revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents: 8317
diff changeset
   827
            start += (startrev + 1) * self._io.size
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   828
        return self._getchunk(start, length)
8318
6b8513f8274a revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents: 8317
diff changeset
   829
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   830
    def _chunk(self, rev):
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   831
        return decompress(self._chunkraw(rev, rev))
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   832
14075
bc101902a68d revlog: introduce _chunkbase to allow filelog to override
Sune Foldager <cryo@cyanite.org>
parents: 14064
diff changeset
   833
    def _chunkbase(self, rev):
bc101902a68d revlog: introduce _chunkbase to allow filelog to override
Sune Foldager <cryo@cyanite.org>
parents: 14064
diff changeset
   834
        return self._chunk(rev)
bc101902a68d revlog: introduce _chunkbase to allow filelog to override
Sune Foldager <cryo@cyanite.org>
parents: 14064
diff changeset
   835
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   836
    def _chunkclear(self):
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   837
        self._chunkcache = (0, '')
1598
14d1f1868bf6 cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1559
diff changeset
   838
11929
1839a7518b0d revlog: deltachain() returns chain of revs need to construct a revision
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11928
diff changeset
   839
    def deltaparent(self, rev):
14195
0013d3eeb826 revlog: remove support for parentdelta
Sune Foldager <cryo@cyanite.org>
parents: 14164
diff changeset
   840
        """return deltaparent of the given revision"""
14253
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
   841
        base = self.index[rev][3]
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
   842
        if base == rev:
14208
d62d597b8974 revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents: 14196
diff changeset
   843
            return nullrev
14253
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
   844
        elif self._generaldelta:
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
   845
            return base
14208
d62d597b8974 revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents: 14196
diff changeset
   846
        else:
d62d597b8974 revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents: 14196
diff changeset
   847
            return rev - 1
11929
1839a7518b0d revlog: deltachain() returns chain of revs need to construct a revision
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11928
diff changeset
   848
1941
7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1853
diff changeset
   849
    def revdiff(self, rev1, rev2):
7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1853
diff changeset
   850
        """return or calculate a delta between two revisions"""
14208
d62d597b8974 revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents: 14196
diff changeset
   851
        if rev1 != nullrev and self.deltaparent(rev2) == rev1:
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   852
            return self._chunk(rev2)
5005
72082bfced9a revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents: 5004
diff changeset
   853
72082bfced9a revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents: 5004
diff changeset
   854
        return mdiff.textdiff(self.revision(self.node(rev1)),
72082bfced9a revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents: 5004
diff changeset
   855
                              self.revision(self.node(rev2)))
119
c7a66f9752a4 Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents: 117
diff changeset
   856
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
   857
    def revision(self, node):
6912
b92baef99ebf Fixed docstring typos
Martin Geisler <mg@daimi.au.dk>
parents: 6891
diff changeset
   858
        """return an uncompressed revision of a given node"""
11996
3195cf01dfb9 revlog.revision(): don't use nullrev as the default value for the cache
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11995
diff changeset
   859
        cachedrev = None
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   860
        if node == nullid:
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   861
            return ""
11930
12547cedc264 revlog: teach revlog to construct a revision from parentdeltas
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11929
diff changeset
   862
        if self._cache:
12547cedc264 revlog: teach revlog to construct a revision from parentdeltas
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11929
diff changeset
   863
            if self._cache[0] == node:
12547cedc264 revlog: teach revlog to construct a revision from parentdeltas
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11929
diff changeset
   864
                return self._cache[2]
11995
ff84cd2bdfaf revlog.revision(): minor cleanup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11963
diff changeset
   865
            cachedrev = self._cache[1]
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
   866
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   867
        # look up what we need to read
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
   868
        text = None
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
   869
        rev = self.rev(node)
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
   870
5004
825516d16b25 revlog: move flag checking out of the offset fastpath
Matt Mackall <mpm@selenic.com>
parents: 4996
diff changeset
   871
        # check rev flags
11745
138c055ec57d revlog: add punched revision flag
Vishakh H <vsh426@gmail.com>
parents: 11693
diff changeset
   872
        if self.flags(rev) & ~REVIDX_KNOWN_FLAGS:
5312
fb070713ff36 revlog: more robust for damaged indexes
Matt Mackall <mpm@selenic.com>
parents: 5007
diff changeset
   873
            raise RevlogError(_('incompatible revision flag %x') %
11745
138c055ec57d revlog: add punched revision flag
Vishakh H <vsh426@gmail.com>
parents: 11693
diff changeset
   874
                              (self.flags(rev) & ~REVIDX_KNOWN_FLAGS))
5004
825516d16b25 revlog: move flag checking out of the offset fastpath
Matt Mackall <mpm@selenic.com>
parents: 4996
diff changeset
   875
11995
ff84cd2bdfaf revlog.revision(): minor cleanup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11963
diff changeset
   876
        # build delta chain
11998
e789a811c21d revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11997
diff changeset
   877
        chain = []
14252
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
   878
        index = self.index # for performance
14253
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
   879
        generaldelta = self._generaldelta
11998
e789a811c21d revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11997
diff changeset
   880
        iterrev = rev
14252
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
   881
        e = index[iterrev]
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
   882
        while iterrev != e[3] and iterrev != cachedrev:
11998
e789a811c21d revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11997
diff changeset
   883
            chain.append(iterrev)
14253
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
   884
            if generaldelta:
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
   885
                iterrev = e[3]
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
   886
            else:
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
   887
                iterrev -= 1
14252
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
   888
            e = index[iterrev]
11998
e789a811c21d revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11997
diff changeset
   889
        chain.reverse()
e789a811c21d revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11997
diff changeset
   890
        base = iterrev
11995
ff84cd2bdfaf revlog.revision(): minor cleanup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11963
diff changeset
   891
11998
e789a811c21d revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11997
diff changeset
   892
        if iterrev == cachedrev:
e789a811c21d revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11997
diff changeset
   893
            # cache hit
9420
d0db168136dc manifest/revlog: do not let the revlog cache mutable objects
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 9029
diff changeset
   894
            text = self._cache[2]
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
   895
11754
6ccd130eab0e revlog: drop cache after use to save memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11539
diff changeset
   896
        # drop cache to save memory
6ccd130eab0e revlog: drop cache after use to save memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11539
diff changeset
   897
        self._cache = None
6ccd130eab0e revlog: drop cache after use to save memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11539
diff changeset
   898
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   899
        self._chunkraw(base, rev)
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   900
        if text is None:
14075
bc101902a68d revlog: introduce _chunkbase to allow filelog to override
Sune Foldager <cryo@cyanite.org>
parents: 14064
diff changeset
   901
            text = self._chunkbase(base)
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   902
11930
12547cedc264 revlog: teach revlog to construct a revision from parentdeltas
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11929
diff changeset
   903
        bins = [self._chunk(r) for r in chain]
4989
1aaed3d69772 revlog: eliminate diff and patches functions
Matt Mackall <mpm@selenic.com>
parents: 4988
diff changeset
   904
        text = mdiff.patches(text, bins)
13239
12ed25f39d0b revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
   905
13276
ba6a63339f7c revlog: pass rev to _checkhash
Matt Mackall <mpm@selenic.com>
parents: 13275
diff changeset
   906
        text = self._checkhash(text, node, rev)
13239
12ed25f39d0b revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
   907
12ed25f39d0b revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
   908
        self._cache = (node, rev, text)
12ed25f39d0b revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
   909
        return text
12ed25f39d0b revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
   910
13276
ba6a63339f7c revlog: pass rev to _checkhash
Matt Mackall <mpm@selenic.com>
parents: 13275
diff changeset
   911
    def _checkhash(self, text, node, rev):
1598
14d1f1868bf6 cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1559
diff changeset
   912
        p1, p2 = self.parents(node)
14196
e7483ec3c374 revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents: 14195
diff changeset
   913
        if node != hash(text, p1, p2):
1402
9d2c2e6b32b5 i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1400
diff changeset
   914
            raise RevlogError(_("integrity check failed on %s:%d")
8643
648af8a6aa41 revlog: report indexfile rather than datafile for integrity check
Matt Mackall <mpm@selenic.com>
parents: 8641
diff changeset
   915
                              % (self.indexfile, rev))
515
03f27b1381f9 Whitespace cleanups
mpm@selenic.com
parents: 484
diff changeset
   916
        return text
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
   917
2075
343aeefb553b Make the appendfile class inline-data index friendly
mason@suse.com
parents: 2073
diff changeset
   918
    def checkinlinesize(self, tr, fp=None):
10913
f2ecc5733c89 revlog: factor out _maxinline global.
Greg Ward <greg-hg@gerg.ca>
parents: 10404
diff changeset
   919
        if not self._inline or (self.start(-2) + self.length(-2)) < _maxinline:
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
   920
            return
8315
c8493310ad9b revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents: 8314
diff changeset
   921
2084
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
   922
        trinfo = tr.find(self.indexfile)
8527
f9a80054dd3c use 'x is None' instead of 'x == None'
Martin Geisler <mg@lazybytes.net>
parents: 8464
diff changeset
   923
        if trinfo is None:
3680
69cf255a55a1 Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3679
diff changeset
   924
            raise RevlogError(_("%s not found in the transaction")
69cf255a55a1 Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3679
diff changeset
   925
                              % self.indexfile)
2084
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
   926
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
   927
        trindex = trinfo[2]
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
   928
        dataoff = self.start(trindex)
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
   929
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
   930
        tr.add(self.datafile, dataoff)
8315
c8493310ad9b revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents: 8314
diff changeset
   931
8317
5cdf4067857a revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents: 8316
diff changeset
   932
        if fp:
5cdf4067857a revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents: 8316
diff changeset
   933
            fp.flush()
5cdf4067857a revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents: 8316
diff changeset
   934
            fp.close()
8315
c8493310ad9b revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents: 8314
diff changeset
   935
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
   936
        df = self.opener(self.datafile, 'w')
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
   937
        try:
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
   938
            for r in self:
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   939
                df.write(self._chunkraw(r, r))
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
   940
        finally:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
   941
            df.close()
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
   942
2076
d007df6daf8e Create an atomic opener that does not automatically rename on close
mason@suse.com
parents: 2075
diff changeset
   943
        fp = self.opener(self.indexfile, 'w', atomictemp=True)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
   944
        self.version &= ~(REVLOGNGINLINEDATA)
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
   945
        self._inline = False
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
   946
        for i in self:
5338
f87685355c9c revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5325
diff changeset
   947
            e = self._io.packentry(self.index[i], self.node, self.version, i)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
   948
            fp.write(e)
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
   949
2076
d007df6daf8e Create an atomic opener that does not automatically rename on close
mason@suse.com
parents: 2075
diff changeset
   950
        # if we don't call rename, the temp file will never replace the
d007df6daf8e Create an atomic opener that does not automatically rename on close
mason@suse.com
parents: 2075
diff changeset
   951
        # real index
d007df6daf8e Create an atomic opener that does not automatically rename on close
mason@suse.com
parents: 2075
diff changeset
   952
        fp.rename()
2084
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
   953
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   954
        tr.replace(self.indexfile, trindex * self._io.size)
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
   955
        self._chunkclear()
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
   956
11962
5f7ee3db3dd8 revlog._addrevision(): make the parent of the cached delta explicit
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11935
diff changeset
   957
    def addrevision(self, text, transaction, link, p1, p2, cachedelta=None):
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   958
        """add a revision to the log
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   959
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   960
        text - the revision data to add
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   961
        transaction - the transaction object used for rollback
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   962
        link - the linkrev data to add
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   963
        p1, p2 - the parent nodeids of the revision
12012
bade7a9c5c07 revlog: fix docstring
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12011
diff changeset
   964
        cachedelta - an optional precomputed delta
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   965
        """
12023
44c22dc193a4 revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12012
diff changeset
   966
        node = hash(text, p1, p2)
14196
e7483ec3c374 revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents: 14195
diff changeset
   967
        if node in self.nodemap:
12023
44c22dc193a4 revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12012
diff changeset
   968
            return node
44c22dc193a4 revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12012
diff changeset
   969
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
   970
        dfh = None
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
   971
        if not self._inline:
3390
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
   972
            dfh = self.opener(self.datafile, "a")
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
   973
        ifh = self.opener(self.indexfile, "a+")
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
   974
        try:
12023
44c22dc193a4 revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12012
diff changeset
   975
            return self._addrevision(node, text, transaction, link, p1, p2,
11962
5f7ee3db3dd8 revlog._addrevision(): make the parent of the cached delta explicit
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11935
diff changeset
   976
                                     cachedelta, ifh, dfh)
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
   977
        finally:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
   978
            if dfh:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
   979
                dfh.close()
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
   980
            ifh.close()
3390
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
   981
12023
44c22dc193a4 revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12012
diff changeset
   982
    def _addrevision(self, node, text, transaction, link, p1, p2,
11962
5f7ee3db3dd8 revlog._addrevision(): make the parent of the cached delta explicit
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11935
diff changeset
   983
                     cachedelta, ifh, dfh):
14292
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
   984
        """internal function to add revisions to the log
12623
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
   985
14292
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
   986
        see addrevision for argument descriptions.
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
   987
        invariants:
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
   988
        - text is optional (can be None); if not set, cachedelta must be set.
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
   989
          if both are set, they must correspond to eachother.
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
   990
        """
12886
c25945a148c1 revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents: 12624
diff changeset
   991
        btext = [text]
c25945a148c1 revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents: 12624
diff changeset
   992
        def buildtext():
c25945a148c1 revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents: 12624
diff changeset
   993
            if btext[0] is not None:
c25945a148c1 revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents: 12624
diff changeset
   994
                return btext[0]
12623
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
   995
            # flush any pending writes here so we can read it in revision
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
   996
            if dfh:
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
   997
                dfh.flush()
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
   998
            ifh.flush()
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
   999
            basetext = self.revision(self.node(cachedelta[0]))
12886
c25945a148c1 revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents: 12624
diff changeset
  1000
            btext[0] = mdiff.patch(basetext, cachedelta[1])
c25945a148c1 revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents: 12624
diff changeset
  1001
            chk = hash(btext[0], p1, p2)
12623
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
  1002
            if chk != node:
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
  1003
                raise RevlogError(_("consistency error in delta"))
12886
c25945a148c1 revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents: 12624
diff changeset
  1004
            return btext[0]
12623
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
  1005
12888
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
  1006
        def builddelta(rev):
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
  1007
            # can we use the cached delta?
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
  1008
            if cachedelta and cachedelta[0] == rev:
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
  1009
                delta = cachedelta[1]
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
  1010
            else:
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
  1011
                t = buildtext()
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
  1012
                ptext = self.revision(self.node(rev))
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
  1013
                delta = mdiff.textdiff(ptext, t)
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
  1014
            data = compress(delta)
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
  1015
            l = len(data[1]) + len(data[0])
14296
62e25c63fb3a revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents: 14292
diff changeset
  1016
            if basecache[0] == rev:
14270
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
  1017
                chainbase = basecache[1]
14252
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
  1018
            else:
14270
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
  1019
                chainbase = self.chainbase(rev)
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
  1020
            dist = l + offset - self.start(chainbase)
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
  1021
            if self._generaldelta:
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
  1022
                base = rev
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
  1023
            else:
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
  1024
                base = chainbase
14296
62e25c63fb3a revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents: 14292
diff changeset
  1025
            return dist, l, data, base, chainbase
12888
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
  1026
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  1027
        curr = len(self)
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
  1028
        prev = curr - 1
14296
62e25c63fb3a revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents: 14292
diff changeset
  1029
        base = chainbase = curr
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
  1030
        offset = self.end(prev)
11931
6051db1327f8 revlog: append delta against p1
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11930
diff changeset
  1031
        flags = 0
11962
5f7ee3db3dd8 revlog._addrevision(): make the parent of the cached delta explicit
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11935
diff changeset
  1032
        d = None
14296
62e25c63fb3a revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents: 14292
diff changeset
  1033
        basecache = self._basecache
12889
5482c6b826f4 revlog: precalculate p1 and p2 revisions
Matt Mackall <mpm@selenic.com>
parents: 12888
diff changeset
  1034
        p1r, p2r = self.rev(p1), self.rev(p2)
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
  1035
11963
7c3aa579d98a parendelta: fix computation of base rev (fixes issue2337)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11962
diff changeset
  1036
        # should we try to build a delta?
12890
b1c839659140 revlog: choose best delta for parentdelta (issue2466)
Matt Mackall <mpm@selenic.com>
parents: 12889
diff changeset
  1037
        if prev != nullrev:
14270
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
  1038
            if self._generaldelta:
14301
f94993769c87 revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14296
diff changeset
  1039
                if p1r >= basecache[1]:
f94993769c87 revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14296
diff changeset
  1040
                    d = builddelta(p1r)
f94993769c87 revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14296
diff changeset
  1041
                elif p2r >= basecache[1]:
f94993769c87 revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14296
diff changeset
  1042
                    d = builddelta(p2r)
f94993769c87 revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14296
diff changeset
  1043
                else:
f94993769c87 revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14296
diff changeset
  1044
                    d = builddelta(prev)
14270
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
  1045
            else:
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
  1046
                d = builddelta(prev)
14296
62e25c63fb3a revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents: 14292
diff changeset
  1047
            dist, l, data, base, chainbase = d
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
  1048
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
  1049
        # full versions are inserted when the needed deltas
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
  1050
        # become comparable to the uncompressed text
12623
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
  1051
        if text is None:
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
  1052
            textlen = mdiff.patchedsize(self.rawsize(cachedelta[0]),
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
  1053
                                        cachedelta[1])
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
  1054
        else:
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
  1055
            textlen = len(text)
14196
e7483ec3c374 revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents: 14195
diff changeset
  1056
        if d is None or dist > textlen * 2:
12886
c25945a148c1 revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents: 12624
diff changeset
  1057
            text = buildtext()
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
  1058
            data = compress(text)
1533
3d11f81c9145 Reduce string duplication in compression code
mason@suse.com
parents: 1509
diff changeset
  1059
            l = len(data[1]) + len(data[0])
14296
62e25c63fb3a revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents: 14292
diff changeset
  1060
            base = chainbase = curr
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
  1061
12623
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
  1062
        e = (offset_type(offset, flags), l, textlen,
12889
5482c6b826f4 revlog: precalculate p1 and p2 revisions
Matt Mackall <mpm@selenic.com>
parents: 12888
diff changeset
  1063
             base, link, p1r, p2r, node)
4979
06abdaf78788 revlog: add a magic null revision to our index
Matt Mackall <mpm@selenic.com>
parents: 4978
diff changeset
  1064
        self.index.insert(-1, e)
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
  1065
        self.nodemap[node] = curr
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
  1066
5338
f87685355c9c revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5325
diff changeset
  1067
        entry = self._io.packentry(e, self.node, self.version, curr)
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
  1068
        if not self._inline:
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  1069
            transaction.add(self.datafile, offset)
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
  1070
            transaction.add(self.indexfile, curr * len(entry))
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  1071
            if data[0]:
3390
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
  1072
                dfh.write(data[0])
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
  1073
            dfh.write(data[1])
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
  1074
            dfh.flush()
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
  1075
            ifh.write(entry)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  1076
        else:
4996
a0d37976cd5b revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents: 4994
diff changeset
  1077
            offset += curr * self._io.size
5324
8409a2e3a78d revlog: fix inlined revision transaction extra data (issue 749)
Patrick Mezard <pmezard@gmail.com>
parents: 5007
diff changeset
  1078
            transaction.add(self.indexfile, offset, curr)
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
  1079
            ifh.write(entry)
3390
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
  1080
            ifh.write(data[0])
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
  1081
            ifh.write(data[1])
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
  1082
            self.checkinlinesize(transaction, ifh)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  1083
9420
d0db168136dc manifest/revlog: do not let the revlog cache mutable objects
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 9029
diff changeset
  1084
        if type(text) == str: # only accept immutable objects
d0db168136dc manifest/revlog: do not let the revlog cache mutable objects
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 9029
diff changeset
  1085
            self._cache = (node, curr, text)
14296
62e25c63fb3a revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents: 14292
diff changeset
  1086
        self._basecache = (curr, chainbase)
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
  1087
        return node
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
  1088
14365
a8e3931e3fb5 revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14334
diff changeset
  1089
    def group(self, nodelist, bundler, reorder=None):
9437
1c4e4004f3a6 Improve some docstrings relating to changegroups and prepush().
Greg Ward <greg-hg@gerg.ca>
parents: 9420
diff changeset
  1090
        """Calculate a delta group, yielding a sequence of changegroup chunks
1c4e4004f3a6 Improve some docstrings relating to changegroups and prepush().
Greg Ward <greg-hg@gerg.ca>
parents: 9420
diff changeset
  1091
        (strings).
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1092
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  1093
        Given a list of changeset revs, return a set of deltas and
11999
62e2bbf523f2 revlog: generate full revisions when parent node is missing
Vishakh H <vsh426@gmail.com>
parents: 11998
diff changeset
  1094
        metadata corresponding to nodes. The first delta is
62e2bbf523f2 revlog: generate full revisions when parent node is missing
Vishakh H <vsh426@gmail.com>
parents: 11998
diff changeset
  1095
        first parent(nodelist[0]) -> nodelist[0], the receiver is
62e2bbf523f2 revlog: generate full revisions when parent node is missing
Vishakh H <vsh426@gmail.com>
parents: 11998
diff changeset
  1096
        guaranteed to have this parent as it has all history before
62e2bbf523f2 revlog: generate full revisions when parent node is missing
Vishakh H <vsh426@gmail.com>
parents: 11998
diff changeset
  1097
        these changesets. In the case firstparent is nullrev the
62e2bbf523f2 revlog: generate full revisions when parent node is missing
Vishakh H <vsh426@gmail.com>
parents: 11998
diff changeset
  1098
        changegroup starts with a full revision.
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  1099
        """
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1100
14365
a8e3931e3fb5 revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14334
diff changeset
  1101
        # for generaldelta revlogs, we linearize the revs; this will both be
a8e3931e3fb5 revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14334
diff changeset
  1102
        # much quicker and generate a much smaller bundle
a8e3931e3fb5 revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14334
diff changeset
  1103
        if (self._generaldelta and reorder is not False) or reorder:
a8e3931e3fb5 revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14334
diff changeset
  1104
            dag = dagutil.revlogdag(self)
a8e3931e3fb5 revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14334
diff changeset
  1105
            revs = set(self.rev(n) for n in nodelist)
a8e3931e3fb5 revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14334
diff changeset
  1106
            revs = dag.linearize(revs)
a8e3931e3fb5 revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14334
diff changeset
  1107
        else:
a8e3931e3fb5 revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14334
diff changeset
  1108
            revs = sorted([self.rev(n) for n in nodelist])
8634
7659eecd9da2 changegroup: the node list might be an empty generator (fix issue1678)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8624
diff changeset
  1109
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1110
        # if we don't have any revisions touched by these changesets, bail
8634
7659eecd9da2 changegroup: the node list might be an empty generator (fix issue1678)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8624
diff changeset
  1111
        if not revs:
13831
d69c9510d648 changegroup: introduce bundler objects
Matt Mackall <mpm@selenic.com>
parents: 13785
diff changeset
  1112
            yield bundler.close()
192
5d8553352d2e Changes to network protocol
mpm@selenic.com
parents: 155
diff changeset
  1113
            return
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1114
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1115
        # add the parent of the first rev
8391
27bffd81d265 revlog: slightly tune group() by not going rev->node->rev
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 8318
diff changeset
  1116
        p = self.parentrevs(revs[0])[0]
27bffd81d265 revlog: slightly tune group() by not going rev->node->rev
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 8318
diff changeset
  1117
        revs.insert(0, p)
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1118
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1119
        # build deltas
13768
10aea25fb519 revlog: change variable name to avoid reuse
Matt Mackall <mpm@selenic.com>
parents: 13741
diff changeset
  1120
        for r in xrange(len(revs) - 1):
14143
da635d3c5620 changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14141
diff changeset
  1121
            prev, curr = revs[r], revs[r + 1]
da635d3c5620 changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14141
diff changeset
  1122
            for c in bundler.revchunk(self, curr, prev):
13831
d69c9510d648 changegroup: introduce bundler objects
Matt Mackall <mpm@selenic.com>
parents: 13785
diff changeset
  1123
                yield c
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1124
13831
d69c9510d648 changegroup: introduce bundler objects
Matt Mackall <mpm@selenic.com>
parents: 13785
diff changeset
  1125
        yield bundler.close()
192
5d8553352d2e Changes to network protocol
mpm@selenic.com
parents: 155
diff changeset
  1126
12335
e21fe9c5fb25 bundle: get rid of chunkiter
Matt Mackall <mpm@selenic.com>
parents: 12025
diff changeset
  1127
    def addgroup(self, bundle, linkmapper, transaction):
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  1128
        """
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  1129
        add a delta group
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1130
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  1131
        given a set of deltas, add them to the revision log. the
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  1132
        first delta is against its parent, which should be in our
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  1133
        log, the rest are against the previous delta.
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  1134
        """
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  1135
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  1136
        # track the base of the current delta log
2002
4aab906517c6 Calling revlog.addgroup with an empty changegroup now raises RevlogError.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1981
diff changeset
  1137
        node = None
515
03f27b1381f9 Whitespace cleanups
mpm@selenic.com
parents: 484
diff changeset
  1138
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  1139
        r = len(self)
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  1140
        end = 0
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1141
        if r:
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  1142
            end = self.end(r - 1)
2072
74d3f5336b66 Implement revlogng.
mason@suse.com
parents: 2002
diff changeset
  1143
        ifh = self.opener(self.indexfile, "a+")
4996
a0d37976cd5b revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents: 4994
diff changeset
  1144
        isize = r * self._io.size
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
  1145
        if self._inline:
4996
a0d37976cd5b revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents: 4994
diff changeset
  1146
            transaction.add(self.indexfile, end + isize, r)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  1147
            dfh = None
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  1148
        else:
4996
a0d37976cd5b revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents: 4994
diff changeset
  1149
            transaction.add(self.indexfile, isize, r)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  1150
            transaction.add(self.datafile, end)
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  1151
            dfh = self.opener(self.datafile, "a")
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1152
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  1153
        try:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  1154
            # loop through our set of deltas
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  1155
            chain = None
12335
e21fe9c5fb25 bundle: get rid of chunkiter
Matt Mackall <mpm@selenic.com>
parents: 12025
diff changeset
  1156
            while 1:
14144
3c3c53d8343a unbundler: separate delta and header parsing
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14143
diff changeset
  1157
                chunkdata = bundle.deltachunk(chain)
12336
9d234f7d8a77 bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents: 12335
diff changeset
  1158
                if not chunkdata:
12335
e21fe9c5fb25 bundle: get rid of chunkiter
Matt Mackall <mpm@selenic.com>
parents: 12025
diff changeset
  1159
                    break
12336
9d234f7d8a77 bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents: 12335
diff changeset
  1160
                node = chunkdata['node']
9d234f7d8a77 bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents: 12335
diff changeset
  1161
                p1 = chunkdata['p1']
9d234f7d8a77 bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents: 12335
diff changeset
  1162
                p2 = chunkdata['p2']
9d234f7d8a77 bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents: 12335
diff changeset
  1163
                cs = chunkdata['cs']
14141
bd1cbfe5db5c bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14075
diff changeset
  1164
                deltabase = chunkdata['deltabase']
bd1cbfe5db5c bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14075
diff changeset
  1165
                delta = chunkdata['delta']
12336
9d234f7d8a77 bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents: 12335
diff changeset
  1166
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  1167
                link = linkmapper(cs)
14196
e7483ec3c374 revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents: 14195
diff changeset
  1168
                if node in self.nodemap:
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  1169
                    # this can happen if two branches make the same change
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  1170
                    chain = node
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  1171
                    continue
192
5d8553352d2e Changes to network protocol
mpm@selenic.com
parents: 155
diff changeset
  1172
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  1173
                for p in (p1, p2):
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  1174
                    if not p in self.nodemap:
14196
e7483ec3c374 revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents: 14195
diff changeset
  1175
                        raise LookupError(p, self.indexfile,
e7483ec3c374 revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents: 14195
diff changeset
  1176
                                          _('unknown parent'))
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1177
14141
bd1cbfe5db5c bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14075
diff changeset
  1178
                if deltabase not in self.nodemap:
bd1cbfe5db5c bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14075
diff changeset
  1179
                    raise LookupError(deltabase, self.indexfile,
bd1cbfe5db5c bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14075
diff changeset
  1180
                                      _('unknown delta base'))
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1181
14141
bd1cbfe5db5c bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14075
diff changeset
  1182
                baserev = self.rev(deltabase)
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  1183
                chain = self._addrevision(node, None, transaction, link,
14141
bd1cbfe5db5c bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14075
diff changeset
  1184
                                          p1, p2, (baserev, delta), ifh, dfh)
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  1185
                if not dfh and not self._inline:
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  1186
                    # addrevision switched from inline to conventional
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  1187
                    # reopen the index
13400
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13284
diff changeset
  1188
                    ifh.close()
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  1189
                    dfh = self.opener(self.datafile, "a")
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  1190
                    ifh = self.opener(self.indexfile, "a")
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  1191
        finally:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  1192
            if dfh:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  1193
                dfh.close()
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  1194
            ifh.close()
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1195
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  1196
        return node
1493
1a216cb4ee64 verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents: 1469
diff changeset
  1197
8073
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8017
diff changeset
  1198
    def strip(self, minlink, transaction):
5910
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  1199
        """truncate the revlog on the first revision with a linkrev >= minlink
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  1200
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  1201
        This function is called when we're stripping revision minlink and
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  1202
        its descendants from the repository.
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  1203
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  1204
        We have to remove all revisions with linkrev >= minlink, because
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  1205
        the equivalent changelog revisions will be renumbered after the
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  1206
        strip.
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  1207
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  1208
        So we truncate the revlog on the first of these revisions, and
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  1209
        trust that the caller has saved the revisions that shouldn't be
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  1210
        removed and that it'll readd them after this truncation.
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  1211
        """
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  1212
        if len(self) == 0:
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  1213
            return
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  1214
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  1215
        for rev in self:
5909
f45f7390c1c5 strip: calculate list of extra nodes to save and pass it to changegroupsubset
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5659
diff changeset
  1216
            if self.index[rev][4] >= minlink:
f45f7390c1c5 strip: calculate list of extra nodes to save and pass it to changegroupsubset
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5659
diff changeset
  1217
                break
f45f7390c1c5 strip: calculate list of extra nodes to save and pass it to changegroupsubset
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5659
diff changeset
  1218
        else:
f45f7390c1c5 strip: calculate list of extra nodes to save and pass it to changegroupsubset
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5659
diff changeset
  1219
            return
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  1220
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  1221
        # first truncate the files on disk
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  1222
        end = self.start(rev)
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
  1223
        if not self._inline:
8073
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8017
diff changeset
  1224
            transaction.add(self.datafile, end)
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
  1225
            end = rev * self._io.size
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  1226
        else:
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
  1227
            end += rev * self._io.size
2072
74d3f5336b66 Implement revlogng.
mason@suse.com
parents: 2002
diff changeset
  1228
8073
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8017
diff changeset
  1229
        transaction.add(self.indexfile, end)
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  1230
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  1231
        # then reset internal state in memory to forget those revisions
4984
b4066fcbd6ba revlog: mark cache private
Matt Mackall <mpm@selenic.com>
parents: 4983
diff changeset
  1232
        self._cache = None
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
  1233
        self._chunkclear()
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  1234
        for x in xrange(rev, len(self)):
2072
74d3f5336b66 Implement revlogng.
mason@suse.com
parents: 2002
diff changeset
  1235
            del self.nodemap[self.node(x)]
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  1236
4979
06abdaf78788 revlog: add a magic null revision to our index
Matt Mackall <mpm@selenic.com>
parents: 4978
diff changeset
  1237
        del self.index[rev:-1]
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  1238
1493
1a216cb4ee64 verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents: 1469
diff changeset
  1239
    def checksize(self):
1a216cb4ee64 verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents: 1469
diff changeset
  1240
        expected = 0
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  1241
        if len(self):
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  1242
            expected = max(0, self.end(len(self) - 1))
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1243
1494
249ca10d37f4 Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents: 1493
diff changeset
  1244
        try:
249ca10d37f4 Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents: 1493
diff changeset
  1245
            f = self.opener(self.datafile)
249ca10d37f4 Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents: 1493
diff changeset
  1246
            f.seek(0, 2)
249ca10d37f4 Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents: 1493
diff changeset
  1247
            actual = f.tell()
13400
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13284
diff changeset
  1248
            f.close()
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1249
            dd = actual - expected
1494
249ca10d37f4 Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents: 1493
diff changeset
  1250
        except IOError, inst:
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1251
            if inst.errno != errno.ENOENT:
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1252
                raise
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1253
            dd = 0
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1254
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1255
        try:
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1256
            f = self.opener(self.indexfile)
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1257
            f.seek(0, 2)
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1258
            actual = f.tell()
13400
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13284
diff changeset
  1259
            f.close()
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
  1260
            s = self._io.size
9029
0001e49f1c11 compat: use // for integer division
Alejandro Santos <alejolp@alejolp.com>
parents: 8658
diff changeset
  1261
            i = max(0, actual // s)
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1262
            di = actual - (i * s)
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
  1263
            if self._inline:
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  1264
                databytes = 0
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  1265
                for r in self:
5312
fb070713ff36 revlog: more robust for damaged indexes
Matt Mackall <mpm@selenic.com>
parents: 5007
diff changeset
  1266
                    databytes += max(0, self.length(r))
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  1267
                dd = 0
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  1268
                di = actual - len(self) * s - databytes
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1269
        except IOError, inst:
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1270
            if inst.errno != errno.ENOENT:
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1271
                raise
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1272
            di = 0
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1273
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  1274
        return (dd, di)
6891
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
  1275
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
  1276
    def files(self):
10282
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  1277
        res = [self.indexfile]
6891
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
  1278
        if not self._inline:
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
  1279
            res.append(self.datafile)
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
  1280
        return res