hgext/hgk.py
author rdamazio@google.com
Sat, 13 Oct 2018 02:17:41 -0700
changeset 40293 c303d65d2e34
parent 38783 e7aa113b14f7
child 43076 2372284d9457
permissions -rw-r--r--
help: assigning categories to existing commands I'm separating this into its own commit so people can bikeshed over the actual categorization (vs the support for categories). These categories are based on the help implementation we've been using internally at Google, and have had zero complaints. Differential Revision: https://phab.mercurial-scm.org/D5067
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# Minimal support for git commands on an hg repository
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#
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# Copyright 2005, 2006 Chris Mason <mason@suse.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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'''browse the repository in a graphical way
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The hgk extension allows browsing the history of a repository in a
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graphical way. It requires Tcl/Tk version 8.4 or later. (Tcl/Tk is not
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distributed with Mercurial.)
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hgk consists of two parts: a Tcl script that does the displaying and
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querying of information, and an extension to Mercurial named hgk.py,
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which provides hooks for hgk to get information. hgk can be found in
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the contrib directory, and the extension is shipped in the hgext
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repository, and needs to be enabled.
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The :hg:`view` command will launch the hgk Tcl script. For this command
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to work, hgk must be in your search path. Alternately, you can specify
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the path to hgk in your configuration file::
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  [hgk]
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  path = /location/of/hgk
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hgk can make use of the extdiff extension to visualize revisions.
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Assuming you had already configured extdiff vdiff command, just add::
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  [hgk]
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  vdiff=vdiff
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Revisions context menu will now display additional entries to fire
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vdiff on hovered and selected revisions.
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'''
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from __future__ import absolute_import
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import os
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from mercurial.i18n import _
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from mercurial.node import (
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    nullid,
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    nullrev,
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    short,
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)
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from mercurial import (
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    commands,
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    obsolete,
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    patch,
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    pycompat,
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    registrar,
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    scmutil,
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)
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cmdtable = {}
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command = registrar.command(cmdtable)
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# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
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# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
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# be specifying the version(s) of Mercurial they are tested with, or
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# leave the attribute unspecified.
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testedwith = 'ships-with-hg-core'
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configtable = {}
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configitem = registrar.configitem(configtable)
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configitem('hgk', 'path',
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    default='hgk',
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)
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@command('debug-diff-tree',
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    [('p', 'patch', None, _('generate patch')),
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    ('r', 'recursive', None, _('recursive')),
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    ('P', 'pretty', None, _('pretty')),
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    ('s', 'stdin', None, _('stdin')),
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    ('C', 'copy', None, _('detect copies')),
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    ('S', 'search', "", _('search'))],
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    ('[OPTION]... NODE1 NODE2 [FILE]...'),
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    inferrepo=True)
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def difftree(ui, repo, node1=None, node2=None, *files, **opts):
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    """diff trees from two commits"""
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    def __difftree(repo, node1, node2, files=None):
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        assert node2 is not None
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        if files is None:
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            files = []
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        mmap = repo[node1].manifest()
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        mmap2 = repo[node2].manifest()
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        m = scmutil.match(repo[node1], files)
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        modified, added, removed  = repo.status(node1, node2, m)[:3]
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        empty = short(nullid)
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        for f in modified:
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            # TODO get file permissions
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            ui.write((":100664 100664 %s %s M\t%s\t%s\n") %
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                     (short(mmap[f]), short(mmap2[f]), f, f))
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        for f in added:
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            ui.write((":000000 100664 %s %s N\t%s\t%s\n") %
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                     (empty, short(mmap2[f]), f, f))
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        for f in removed:
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            ui.write((":100664 000000 %s %s D\t%s\t%s\n") %
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                     (short(mmap[f]), empty, f, f))
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    ##
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    while True:
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        if opts[r'stdin']:
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            line = ui.fin.readline()
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            if not line:
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                break
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            line = line.rstrip(pycompat.oslinesep).split(b' ')
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            node1 = line[0]
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            if len(line) > 1:
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                node2 = line[1]
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            else:
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                node2 = None
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        node1 = repo.lookup(node1)
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        if node2:
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            node2 = repo.lookup(node2)
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        else:
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            node2 = node1
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            node1 = repo.changelog.parents(node1)[0]
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        if opts[r'patch']:
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            if opts[r'pretty']:
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                catcommit(ui, repo, node2, "")
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            m = scmutil.match(repo[node1], files)
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            diffopts = patch.difffeatureopts(ui)
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            diffopts.git = True
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            chunks = patch.diff(repo, node1, node2, match=m,
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                                opts=diffopts)
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            for chunk in chunks:
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                ui.write(chunk)
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        else:
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            __difftree(repo, node1, node2, files=files)
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        if not opts[r'stdin']:
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            break
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def catcommit(ui, repo, n, prefix, ctx=None):
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    nlprefix = '\n' + prefix
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    if ctx is None:
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        ctx = repo[n]
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    # use ctx.node() instead ??
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    ui.write(("tree %s\n" % short(ctx.changeset()[0])))
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    for p in ctx.parents():
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        ui.write(("parent %s\n" % p))
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    date = ctx.date()
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    description = ctx.description().replace("\0", "")
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    ui.write(("author %s %d %d\n" % (ctx.user(), int(date[0]), date[1])))
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    if 'committer' in ctx.extra():
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        ui.write(("committer %s\n" % ctx.extra()['committer']))
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    ui.write(("revision %d\n" % ctx.rev()))
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    ui.write(("branch %s\n" % ctx.branch()))
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    if obsolete.isenabled(repo, obsolete.createmarkersopt):
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        if ctx.obsolete():
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            ui.write(("obsolete\n"))
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    ui.write(("phase %s\n\n" % ctx.phasestr()))
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   159
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    if prefix != "":
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        ui.write("%s%s\n" % (prefix,
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                             description.replace('\n', nlprefix).strip()))
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    else:
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        ui.write(description + "\n")
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    if prefix:
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        ui.write('\0')
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@command('debug-merge-base', [], _('REV REV'))
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def base(ui, repo, node1, node2):
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    """output common ancestor information"""
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    node1 = repo.lookup(node1)
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    node2 = repo.lookup(node2)
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    n = repo.changelog.ancestor(node1, node2)
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    ui.write(short(n) + "\n")
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@command('debug-cat-file',
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    [('s', 'stdin', None, _('stdin'))],
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    _('[OPTION]... TYPE FILE'),
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    inferrepo=True)
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def catfile(ui, repo, type=None, r=None, **opts):
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    """cat a specific revision"""
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    # in stdin mode, every line except the commit is prefixed with two
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    # spaces.  This way the our caller can find the commit without magic
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    # strings
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    #
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    prefix = ""
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   187
    if opts[r'stdin']:
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        line = ui.fin.readline()
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        if not line:
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            return
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        (type, r) = line.rstrip(pycompat.oslinesep).split(b' ')
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        prefix = "    "
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    else:
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        if not type or not r:
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            ui.warn(_("cat-file: type or revision not supplied\n"))
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            commands.help_(ui, 'cat-file')
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    while r:
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   199
        if type != "commit":
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            ui.warn(_("aborting hg cat-file only understands commits\n"))
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            return 1
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        n = repo.lookup(r)
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        catcommit(ui, repo, n, prefix)
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        if opts[r'stdin']:
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            line = ui.fin.readline()
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            if not line:
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                break
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            (type, r) = line.rstrip(pycompat.oslinesep).split(b' ')
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   209
        else:
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            break
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# git rev-tree is a confusing thing.  You can supply a number of
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# commit sha1s on the command line, and it walks the commit history
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# telling you which commits are reachable from the supplied ones via
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# a bitmask based on arg position.
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# you can specify a commit to stop at by starting the sha1 with ^
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   217
def revtree(ui, args, repo, full="tree", maxnr=0, parents=False):
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    def chlogwalk():
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        count = len(repo)
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        i = count
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        l = [0] * 100
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        chunk = 100
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        while True:
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   224
            if chunk > i:
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                chunk = i
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                i = 0
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            else:
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                i -= chunk
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   229
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            for x in pycompat.xrange(chunk):
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                if i + x >= count:
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                    l[chunk - x:] = [0] * (chunk - x)
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                    break
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   234
                if full is not None:
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   235
                    if (i + x) in repo:
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   236
                        l[x] = repo[i + x]
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   237
                        l[x].changeset() # force reading
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   238
                else:
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   239
                    if (i + x) in repo:
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   240
                        l[x] = 1
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   241
            for x in pycompat.xrange(chunk - 1, -1, -1):
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                if l[x] != 0:
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   243
                    yield (i + x, full is not None and l[x] or None)
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   244
            if i == 0:
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   245
                break
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   246
267
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   247
    # calculate and return the reachability bitmask for sha
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   248
    def is_reachable(ar, reachable, sha):
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   249
        if len(ar) == 0:
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   250
            return 1
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   251
        mask = 0
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   252
        for i in pycompat.xrange(len(ar)):
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   253
            if sha in reachable[i]:
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                mask |= 1 << i
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        return mask
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    reachable = []
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    stop_sha1 = []
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    want_sha1 = []
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    count = 0
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    # figure out which commits they are asking for and which ones they
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    # want us to stop on
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    for i, arg in enumerate(args):
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        if arg.startswith('^'):
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            s = repo.lookup(arg[1:])
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            stop_sha1.append(s)
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            want_sha1.append(s)
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        elif arg != 'HEAD':
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            want_sha1.append(repo.lookup(arg))
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    # calculate the graph for the supplied commits
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    for i, n in enumerate(want_sha1):
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        reachable.append(set())
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        visit = [n]
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        reachable[i].add(n)
334
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        while visit:
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            n = visit.pop(0)
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            if n in stop_sha1:
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                continue
334
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            for p in repo.changelog.parents(n):
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                if p not in reachable[i]:
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                    reachable[i].add(p)
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                    visit.append(p)
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                if p in stop_sha1:
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                    continue
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    # walk the repository looking for commits that are in our
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    # reachability graph
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    for i, ctx in chlogwalk():
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        if i not in repo:
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            continue
334
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        n = repo.changelog.node(i)
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        mask = is_reachable(want_sha1, reachable, n)
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        if mask:
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            parentstr = ""
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            if parents:
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                pp = repo.changelog.parents(n)
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                if pp[0] != nullid:
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                    parentstr += " " + short(pp[0])
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                if pp[1] != nullid:
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                    parentstr += " " + short(pp[1])
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            if not full:
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diff changeset
   305
                ui.write("%s%s\n" % (short(n), parentstr))
3064
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diff changeset
   306
            elif full == "commit":
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   307
                ui.write("%s%s\n" % (short(n), parentstr))
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                catcommit(ui, repo, n, '    ', ctx)
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   309
            else:
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                (p1, p2) = repo.changelog.parents(n)
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                (h, h1, h2) = map(short, (n, p1, p2))
356
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                (i1, i2) = map(repo.changelog.rev, (p1, p2))
267
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                date = ctx.date()[0]
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diff changeset
   315
                ui.write("%s %s:%s" % (date, h, mask))
356
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   316
                mask = is_reachable(want_sha1, reachable, p1)
6217
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diff changeset
   317
                if i1 != nullrev and mask > 0:
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diff changeset
   318
                    ui.write("%s:%s " % (h1, mask)),
356
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diff changeset
   319
                mask = is_reachable(want_sha1, reachable, p2)
6217
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diff changeset
   320
                if i2 != nullrev and mask > 0:
5878
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diff changeset
   321
                    ui.write("%s:%s " % (h2, mask))
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diff changeset
   322
                ui.write("\n")
356
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diff changeset
   323
            if maxnr and count >= maxnr:
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diff changeset
   324
                break
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diff changeset
   325
            count += 1
267
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   326
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   327
# git rev-list tries to order things by date, and has the ability to stop
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   328
# at a given commit without walking the whole repo.  TODO add the stop
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   329
# parameter
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diff changeset
   330
@command('debug-rev-list',
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diff changeset
   331
    [('H', 'header', None, _('header')),
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diff changeset
   332
    ('t', 'topo-order', None, _('topo-order')),
8d354d58147c hgk: declare commands using decorator
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diff changeset
   333
    ('p', 'parents', None, _('parents')),
8d354d58147c hgk: declare commands using decorator
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diff changeset
   334
    ('n', 'max-count', 0, _('max-count'))],
24511
0ecc1e42ff3f hgk: remove repetitious (and wrong) command syntax descriptions
Andrew Shadura <andrew@shadura.me>
parents: 23451
diff changeset
   335
    ('[OPTION]... REV...'))
1239
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diff changeset
   336
def revlist(ui, repo, *revs, **opts):
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diff changeset
   337
    """print revisions"""
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diff changeset
   338
    if opts['header']:
356
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diff changeset
   339
        full = "commit"
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diff changeset
   340
    else:
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diff changeset
   341
        full = None
1239
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diff changeset
   342
    copy = [x for x in revs]
34998
fc0e6d298cd4 py3: handle keyword arguments in hgext/hgk.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 34499
diff changeset
   343
    revtree(ui, copy, repo, full, opts[r'max_count'], opts[r'parents'])
267
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diff changeset
   344
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diff changeset
   345
@command('view',
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diff changeset
   346
    [('l', 'limit', '',
8d354d58147c hgk: declare commands using decorator
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diff changeset
   347
     _('limit number of changes displayed'), _('NUM'))],
40293
c303d65d2e34 help: assigning categories to existing commands
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diff changeset
   348
    _('[-l LIMIT] [REVRANGE]'),
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parents: 38783
diff changeset
   349
    helpcategory=command.CATEGORY_CHANGE_NAVIGATION)
3093
edefbb3a3b08 hgk: add --limit, and revranges
Brendan Cully <brendan@kublai.com>
parents: 3092
diff changeset
   350
def view(ui, repo, *etc, **opts):
1278
6a0d373d3126 hgit -> hgk.py
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diff changeset
   351
    "start interactive history viewer"
34998
fc0e6d298cd4 py3: handle keyword arguments in hgext/hgk.py
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diff changeset
   352
    opts = pycompat.byteskwargs(opts)
1278
6a0d373d3126 hgit -> hgk.py
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diff changeset
   353
    os.chdir(repo.root)
3180
eb0906ebba81 hgk: fix mixup of --limit and REVRANGE in hgk call
TK Soh <teekaysoh@yahoo.com>
parents: 3093
diff changeset
   354
    optstr = ' '.join(['--%s %s' % (k, v) for k, v in opts.iteritems() if v])
24512
e5c5ddc3b172 hgk: pass --hidden switch to hg subprocesses when needed
Andrew Shadura <andrew@shadura.me>
parents: 24511
diff changeset
   355
    if repo.filtername is None:
e5c5ddc3b172 hgk: pass --hidden switch to hg subprocesses when needed
Andrew Shadura <andrew@shadura.me>
parents: 24511
diff changeset
   356
        optstr += '--hidden'
e5c5ddc3b172 hgk: pass --hidden switch to hg subprocesses when needed
Andrew Shadura <andrew@shadura.me>
parents: 24511
diff changeset
   357
34499
b8f74c4d188f configitems: register the 'hgk.path' config
Boris Feld <boris.feld@octobus.net>
parents: 33839
diff changeset
   358
    cmd = ui.config("hgk", "path") + " %s %s" % (optstr, " ".join(etc))
9467
4c041f1ee1b4 do not attempt to translate ui.debug output
Martin Geisler <mg@lazybytes.net>
parents: 9261
diff changeset
   359
    ui.debug("running %s\n" % cmd)
31203
a8e4322f64c1 hgk: set a blocked tag when the user invokes view
Simon Farnsworth <simonfar@fb.com>
parents: 29841
diff changeset
   360
    ui.system(cmd, blockedtag='hgk_view')