mercurial/merge.py
author Matt Mackall <mpm@selenic.com>
Thu, 27 Dec 2007 22:47:44 -0600
changeset 5708 f6bf89722e29
parent 5704 5049bbf988e1
child 5857 c704b03884ef
permissions -rw-r--r--
merge: add flag merging intelligence - properly handle all 27 combinations of flags - prompt on conflicts
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# merge.py - directory-level update/merge handling for Mercurial
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#
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# Copyright 2006, 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
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# of the GNU General Public License, incorporated herein by reference.
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from node import *
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from i18n import _
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import errno, util, os, tempfile, context, heapq
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def filemerge(repo, fw, fd, fo, wctx, mctx):
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    """perform a 3-way merge in the working directory
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    fw = original filename in the working directory
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    fd = destination filename in the working directory
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    fo = filename in other parent
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    wctx, mctx = working and merge changecontexts
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    """
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    def temp(prefix, ctx):
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        pre = "%s~%s." % (os.path.basename(ctx.path()), prefix)
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        (fd, name) = tempfile.mkstemp(prefix=pre)
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        data = repo.wwritedata(ctx.path(), ctx.data())
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        f = os.fdopen(fd, "wb")
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        f.write(data)
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        f.close()
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        return name
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    fcm = wctx.filectx(fw)
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    fcmdata = wctx.filectx(fd).data()
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    fco = mctx.filectx(fo)
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    if not fco.cmp(fcmdata): # files identical?
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        return None
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    fca = fcm.ancestor(fco)
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    if not fca:
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        fca = repo.filectx(fw, fileid=nullrev)
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    a = repo.wjoin(fd)
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    b = temp("base", fca)
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    c = temp("other", fco)
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    if fw != fo:
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        repo.ui.status(_("merging %s and %s\n") % (fw, fo))
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    else:
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        repo.ui.status(_("merging %s\n") % fw)
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    repo.ui.debug(_("my %s other %s ancestor %s\n") % (fcm, fco, fca))
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    cmd = (os.environ.get("HGMERGE") or repo.ui.config("ui", "merge")
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           or "hgmerge")
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    r = util.system('%s "%s" "%s" "%s"' % (cmd, a, b, c), cwd=repo.root,
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                    environ={'HG_FILE': fd,
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                             'HG_MY_NODE': str(wctx.parents()[0]),
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                             'HG_OTHER_NODE': str(mctx),
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                             'HG_MY_ISLINK': fcm.islink(),
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                             'HG_OTHER_ISLINK': fco.islink(),
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                             'HG_BASE_ISLINK': fca.islink(),})
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    if r:
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        repo.ui.warn(_("merging %s failed!\n") % fd)
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    os.unlink(b)
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    os.unlink(c)
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    return r
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def checkunknown(wctx, mctx):
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    "check for collisions between unknown files and files in mctx"
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    man = mctx.manifest()
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    for f in wctx.unknown():
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        if f in man:
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            if mctx.filectx(f).cmp(wctx.filectx(f).data()):
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                raise util.Abort(_("untracked file in working directory differs"
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                                   " from file in requested revision: '%s'")
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                                 % f)
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def checkcollision(mctx):
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    "check for case folding collisions in the destination context"
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    folded = {}
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    for fn in mctx.manifest():
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        fold = fn.lower()
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        if fold in folded:
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            raise util.Abort(_("case-folding collision between %s and %s")
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                             % (fn, folded[fold]))
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        folded[fold] = fn
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def forgetremoved(wctx, mctx):
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    """
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    Forget removed files
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    If we're jumping between revisions (as opposed to merging), and if
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    neither the working directory nor the target rev has the file,
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    then we need to remove it from the dirstate, to prevent the
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    dirstate from listing the file when it is no longer in the
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    manifest.
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    """
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    action = []
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    man = mctx.manifest()
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    for f in wctx.deleted() + wctx.removed():
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        if f not in man:
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            action.append((f, "f"))
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    return action
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def findcopies(repo, m1, m2, ma, limit):
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    """
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    Find moves and copies between m1 and m2 back to limit linkrev
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    """
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    def nonoverlap(d1, d2, d3):
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        "Return list of elements in d1 not in d2 or d3"
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        l = [d for d in d1 if d not in d3 and d not in d2]
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        l.sort()
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        return l
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    def dirname(f):
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        s = f.rfind("/")
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        if s == -1:
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            return ""
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        return f[:s]
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    def dirs(files):
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        d = {}
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        for f in files:
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            f = dirname(f)
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            while f not in d:
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                d[f] = True
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                f = dirname(f)
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        return d
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    wctx = repo.workingctx()
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    def makectx(f, n):
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        if len(n) == 20:
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            return repo.filectx(f, fileid=n)
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        return wctx.filectx(f)
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    ctx = util.cachefunc(makectx)
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   139
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    def findold(fctx):
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        "find files that path was copied from, back to linkrev limit"
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        old = {}
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        seen = {}
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        orig = fctx.path()
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        visit = [fctx]
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   146
        while visit:
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            fc = visit.pop()
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            s = str(fc)
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   149
            if s in seen:
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                continue
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   151
            seen[s] = 1
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            if fc.path() != orig and fc.path() not in old:
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                old[fc.path()] = 1
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   154
            if fc.rev() < limit:
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                continue
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            visit += fc.parents()
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   157
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        old = old.keys()
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   159
        old.sort()
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   160
        return old
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   161
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   162
    copy = {}
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    fullcopy = {}
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    diverge = {}
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   165
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    def checkcopies(c, man, aman):
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        '''check possible copies for filectx c'''
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        for of in findold(c):
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            fullcopy[c.path()] = of # remember for dir rename detection
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            if of not in man: # original file not in other manifest?
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                if of in ma:
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                    diverge.setdefault(of, []).append(c.path())
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                continue
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            # if the original file is unchanged on the other branch,
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            # no merge needed
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            if man[of] == aman.get(of):
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   177
                continue
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   178
            c2 = ctx(of, man[of])
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   179
            ca = c.ancestor(c2)
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            if not ca: # unrelated?
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   181
                continue
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            # named changed on only one side?
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            if ca.path() == c.path() or ca.path() == c2.path():
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                if c == ca and c2 == ca: # no merge needed, ignore copy
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   185
                    continue
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   186
                copy[c.path()] = of
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   187
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   188
    if not repo.ui.configbool("merge", "followcopies", True):
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   189
        return {}, {}
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   190
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   191
    # avoid silly behavior for update from empty dir
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   192
    if not m1 or not m2 or not ma:
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   193
        return {}, {}
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   194
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   195
    repo.ui.debug(_("  searching for copies back to rev %d\n") % limit)
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   196
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   197
    u1 = nonoverlap(m1, m2, ma)
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   198
    u2 = nonoverlap(m2, m1, ma)
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   199
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   200
    if u1:
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   201
        repo.ui.debug(_("  unmatched files in local:\n   %s\n")
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   202
                      % "\n   ".join(u1))
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   203
    if u2:
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   204
        repo.ui.debug(_("  unmatched files in other:\n   %s\n")
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   205
                      % "\n   ".join(u2))
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   206
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   207
    for f in u1:
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   208
        checkcopies(ctx(f, m1[f]), m2, ma)
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   209
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   210
    for f in u2:
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   211
        checkcopies(ctx(f, m2[f]), m1, ma)
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   212
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   213
    d2 = {}
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   214
    for of, fl in diverge.items():
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   215
        for f in fl:
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   216
            fo = list(fl)
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   217
            fo.remove(f)
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   218
            d2[f] = (of, fo)
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   219
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   220
    if fullcopy:
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   221
        repo.ui.debug(_("  all copies found (* = to merge, ! = divergent):\n"))
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   222
        for f in fullcopy:
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   223
            note = ""
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   224
            if f in copy: note += "*"
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   225
            if f in diverge: note += "!"
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   226
            repo.ui.debug(_("   %s -> %s %s\n") % (f, fullcopy[f], note))
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   227
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   228
    if not fullcopy or not repo.ui.configbool("merge", "followdirs", True):
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   229
        return copy, diverge
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   230
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   231
    repo.ui.debug(_("  checking for directory renames\n"))
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   232
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   233
    # generate a directory move map
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   234
    d1, d2 = dirs(m1), dirs(m2)
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   235
    invalid = {}
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   236
    dirmove = {}
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   237
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   238
    # examine each file copy for a potential directory move, which is
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   239
    # when all the files in a directory are moved to a new directory
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   240
    for dst, src in fullcopy.items():
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   241
        dsrc, ddst = dirname(src), dirname(dst)
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   242
        if dsrc in invalid:
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   243
            # already seen to be uninteresting
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   244
            continue
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   245
        elif dsrc in d1 and ddst in d1:
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   246
            # directory wasn't entirely moved locally
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   247
            invalid[dsrc] = True
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   248
        elif dsrc in d2 and ddst in d2:
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   249
            # directory wasn't entirely moved remotely
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   250
            invalid[dsrc] = True
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   251
        elif dsrc in dirmove and dirmove[dsrc] != ddst:
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   252
            # files from the same directory moved to two different places
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   253
            invalid[dsrc] = True
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   254
        else:
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   255
            # looks good so far
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diff changeset
   256
            dirmove[dsrc + "/"] = ddst + "/"
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   257
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   258
    for i in invalid:
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   259
        if i in dirmove:
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   260
            del dirmove[i]
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   261
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   262
    del d1, d2, invalid
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   263
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   264
    if not dirmove:
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   265
        return copy, diverge
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   266
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   267
    for d in dirmove:
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   268
        repo.ui.debug(_("  dir %s -> %s\n") % (d, dirmove[d]))
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   269
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   270
    # check unaccounted nonoverlapping files against directory moves
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    for f in u1 + u2:
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        if f not in fullcopy:
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            for d in dirmove:
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                if f.startswith(d):
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                    # new file added in a directory that was moved, move it
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                    copy[f] = dirmove[d] + f[len(d):]
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                    repo.ui.debug(_("  file %s -> %s\n") % (f, copy[f]))
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                    break
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    return copy, diverge
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   281
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def symmetricdifference(repo, rev1, rev2):
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    """symmetric difference of the sets of ancestors of rev1 and rev2
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    I.e. revisions that are ancestors of rev1 or rev2, but not both.
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    """
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    # basic idea:
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   288
    # - mark rev1 and rev2 with different colors
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    # - walk the graph in topological order with the help of a heap;
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    #   for each revision r:
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   291
    #     - if r has only one color, we want to return it
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    #     - add colors[r] to its parents
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   293
    #
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    # We keep track of the number of revisions in the heap that
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   295
    # we may be interested in.  We stop walking the graph as soon
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   296
    # as this number reaches 0.
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   297
    WHITE = 1
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   298
    BLACK = 2
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   299
    ALLCOLORS = WHITE | BLACK
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    colors = {rev1: WHITE, rev2: BLACK}
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   301
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   302
    cl = repo.changelog
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   303
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   304
    visit = [-rev1, -rev2]
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   305
    heapq.heapify(visit)
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   306
    n_wanted = len(visit)
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   307
    ret = []
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   308
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   309
    while n_wanted:
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   310
        r = -heapq.heappop(visit)
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   311
        wanted = colors[r] != ALLCOLORS
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   312
        n_wanted -= wanted
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   313
        if wanted:
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   314
            ret.append(r)
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   315
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   316
        for p in cl.parentrevs(r):
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   317
            if p == nullrev:
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   318
                continue
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   319
            if p not in colors:
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   320
                # first time we see p; add it to visit
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   321
                n_wanted += wanted
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   322
                colors[p] = colors[r]
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   323
                heapq.heappush(visit, -p)
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   324
            elif colors[p] != ALLCOLORS and colors[p] != colors[r]:
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   325
                # at first we thought we wanted p, but now
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   326
                # we know we don't really want it
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   327
                n_wanted -= 1
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   328
                colors[p] |= colors[r]
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   329
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   330
        del colors[r]
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   331
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   332
    return ret
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diff changeset
   333
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   334
def manifestmerge(repo, p1, p2, pa, overwrite, partial):
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   335
    """
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   336
    Merge p1 and p2 with ancestor ma and generate merge action list
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   337
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   338
    overwrite = whether we clobber working files
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   339
    partial = function to filter file lists
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   340
    """
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   341
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   342
    repo.ui.note(_("resolving manifests\n"))
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   343
    repo.ui.debug(_(" overwrite %s partial %s\n") % (overwrite, bool(partial)))
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   344
    repo.ui.debug(_(" ancestor %s local %s remote %s\n") % (pa, p1, p2))
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diff changeset
   345
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   346
    m1 = p1.manifest()
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   347
    m2 = p2.manifest()
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   348
    ma = pa.manifest()
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   349
    backwards = (pa == p2)
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   350
    action = []
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   351
    copy = {}
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   352
    diverge = {}
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diff changeset
   353
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diff changeset
   354
    def fmerge(f, f2=None, fa=None):
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   355
        """merge flags"""
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diff changeset
   356
        if not f2:
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diff changeset
   357
            f2 = f
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diff changeset
   358
            fa = f
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diff changeset
   359
        a, m, n = ma.flags(fa), m1.flags(f), m2.flags(f2)
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diff changeset
   360
        if m == n: # flags agree
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diff changeset
   361
            return m # unchanged
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diff changeset
   362
        if m and n: # flags are set but don't agree
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diff changeset
   363
            if not a: # both differ from parent
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diff changeset
   364
                r = repo.ui.prompt(
f6bf89722e29 merge: add flag merging intelligence
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diff changeset
   365
                    _(" conflicting flags for %s\n"
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diff changeset
   366
                      "(n)one, e(x)ec or sym(l)ink?") % f, "[nxl]", "n")
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diff changeset
   367
                return r != "n" and r or ''
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diff changeset
   368
            if m == a:
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diff changeset
   369
                return n # changed from m to n
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diff changeset
   370
            return m # changed from n to m
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diff changeset
   371
        if m and m != a: # changed from a to m
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diff changeset
   372
            return m
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diff changeset
   373
        if n and n != a: # changed from a to n
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diff changeset
   374
            return n
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diff changeset
   375
        return '' # flag was cleared
3118
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diff changeset
   376
3307
f009a6f12a59 merge: swap file and mode args for act()
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diff changeset
   377
    def act(msg, m, f, *args):
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diff changeset
   378
        repo.ui.debug(" %s: %s -> %s\n" % (f, msg, m))
3121
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diff changeset
   379
        action.append((f, m) + args)
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diff changeset
   380
3731
b4af5f92e04b merge: move check for empty ancestor into findcopies
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diff changeset
   381
    if not (backwards or overwrite):
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diff changeset
   382
        rev1 = p1.rev()
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diff changeset
   383
        if rev1 is None:
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diff changeset
   384
            # p1 is a workingctx
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diff changeset
   385
            rev1 = p1.parents()[0].rev()
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diff changeset
   386
        limit = min(symmetricdifference(repo, rev1, p2.rev()))
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diff changeset
   387
        copy, diverge = findcopies(repo, m1, m2, ma, limit)
4674
723e0ddb6ada merge: warn user about divergent renames
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parents: 4635
diff changeset
   388
723e0ddb6ada merge: warn user about divergent renames
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diff changeset
   389
    for of, fl in diverge.items():
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diff changeset
   390
        act("divergent renames", "dr", of, fl)
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diff changeset
   391
3730
d377f8d25662 merge: only store one direction of copies in the copy map
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parents: 3729
diff changeset
   392
    copied = dict.fromkeys(copy.values())
3295
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diff changeset
   393
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diff changeset
   394
    # Compare manifests
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diff changeset
   395
    for f, n in m1.iteritems():
3248
751840e739a1 merge: reduce manifest copying
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parents: 3247
diff changeset
   396
        if partial and not partial(f):
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diff changeset
   397
            continue
3105
7c7469d41ade merge: pull manifest comparison out into separate function
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diff changeset
   398
        if f in m2:
5708
f6bf89722e29 merge: add flag merging intelligence
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diff changeset
   399
            if overwrite or backwards:
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diff changeset
   400
                rflags = m2.flags(f)
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parents: 5704
diff changeset
   401
            else:
f6bf89722e29 merge: add flag merging intelligence
Matt Mackall <mpm@selenic.com>
parents: 5704
diff changeset
   402
                rflags = fmerge(f)
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
   403
            # are files different?
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
   404
            if n != m2[f]:
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
   405
                a = ma.get(f, nullid)
5700
9cedc3fbbebb merge: simplify merge tests, fix exec flag bug
Matt Mackall <mpm@selenic.com>
parents: 5695
diff changeset
   406
                # are we clobbering?
9cedc3fbbebb merge: simplify merge tests, fix exec flag bug
Matt Mackall <mpm@selenic.com>
parents: 5695
diff changeset
   407
                if overwrite:
5708
f6bf89722e29 merge: add flag merging intelligence
Matt Mackall <mpm@selenic.com>
parents: 5704
diff changeset
   408
                    act("clobbering", "g", f, rflags)
5700
9cedc3fbbebb merge: simplify merge tests, fix exec flag bug
Matt Mackall <mpm@selenic.com>
parents: 5695
diff changeset
   409
                # or are we going back in time and clean?
9cedc3fbbebb merge: simplify merge tests, fix exec flag bug
Matt Mackall <mpm@selenic.com>
parents: 5695
diff changeset
   410
                elif backwards and not n[20:]:
5708
f6bf89722e29 merge: add flag merging intelligence
Matt Mackall <mpm@selenic.com>
parents: 5704
diff changeset
   411
                    act("reverting", "g", f, rflags)
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
   412
                # are both different from the ancestor?
5700
9cedc3fbbebb merge: simplify merge tests, fix exec flag bug
Matt Mackall <mpm@selenic.com>
parents: 5695
diff changeset
   413
                elif n != a and m2[f] != a:
5708
f6bf89722e29 merge: add flag merging intelligence
Matt Mackall <mpm@selenic.com>
parents: 5704
diff changeset
   414
                    act("versions differ", "m", f, f, f, rflags, False)
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
   415
                # is remote's version newer?
5700
9cedc3fbbebb merge: simplify merge tests, fix exec flag bug
Matt Mackall <mpm@selenic.com>
parents: 5695
diff changeset
   416
                elif m2[f] != a:
5708
f6bf89722e29 merge: add flag merging intelligence
Matt Mackall <mpm@selenic.com>
parents: 5704
diff changeset
   417
                    act("remote is newer", "g", f, rflags)
3113
d1d1cd5b9484 merge: eliminate confusing queued variable
Matt Mackall <mpm@selenic.com>
parents: 3112
diff changeset
   418
                # local is newer, not overwrite, check mode bits
5708
f6bf89722e29 merge: add flag merging intelligence
Matt Mackall <mpm@selenic.com>
parents: 5704
diff changeset
   419
                elif m1.flags(f) != rflags:
f6bf89722e29 merge: add flag merging intelligence
Matt Mackall <mpm@selenic.com>
parents: 5704
diff changeset
   420
                    act("update permissions", "e", f, rflags)
3113
d1d1cd5b9484 merge: eliminate confusing queued variable
Matt Mackall <mpm@selenic.com>
parents: 3112
diff changeset
   421
            # contents same, check mode bits
5708
f6bf89722e29 merge: add flag merging intelligence
Matt Mackall <mpm@selenic.com>
parents: 5704
diff changeset
   422
            elif m1.flags(f) != rflags:
f6bf89722e29 merge: add flag merging intelligence
Matt Mackall <mpm@selenic.com>
parents: 5704
diff changeset
   423
                act("update permissions", "e", f, rflags)
3730
d377f8d25662 merge: only store one direction of copies in the copy map
Matt Mackall <mpm@selenic.com>
parents: 3729
diff changeset
   424
        elif f in copied:
d377f8d25662 merge: only store one direction of copies in the copy map
Matt Mackall <mpm@selenic.com>
parents: 3729
diff changeset
   425
            continue
3249
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
   426
        elif f in copy:
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
   427
            f2 = copy[f]
3733
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   428
            if f2 not in m2: # directory rename
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   429
                act("remote renamed directory to " + f2, "d",
4007
20da40cc1c73 symlinks: minimal support for symlinks in merge/update
Matt Mackall <mpm@selenic.com>
parents: 4006
diff changeset
   430
                    f, None, f2, m1.flags(f))
3733
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   431
            elif f2 in m1: # case 2 A,B/B/B
3730
d377f8d25662 merge: only store one direction of copies in the copy map
Matt Mackall <mpm@selenic.com>
parents: 3729
diff changeset
   432
                act("local copied to " + f2, "m",
d377f8d25662 merge: only store one direction of copies in the copy map
Matt Mackall <mpm@selenic.com>
parents: 3729
diff changeset
   433
                    f, f2, f, fmerge(f, f2, f2), False)
d377f8d25662 merge: only store one direction of copies in the copy map
Matt Mackall <mpm@selenic.com>
parents: 3729
diff changeset
   434
            else: # case 4,21 A/B/B
d377f8d25662 merge: only store one direction of copies in the copy map
Matt Mackall <mpm@selenic.com>
parents: 3729
diff changeset
   435
                act("local moved to " + f2, "m",
d377f8d25662 merge: only store one direction of copies in the copy map
Matt Mackall <mpm@selenic.com>
parents: 3729
diff changeset
   436
                    f, f2, f, fmerge(f, f2, f2), False)
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
   437
        elif f in ma:
3117
7a635ef25132 merge: simplify tests for local changed/remote deleted
Matt Mackall <mpm@selenic.com>
parents: 3116
diff changeset
   438
            if n != ma[f] and not overwrite:
3295
72d1e521da77 merge: use contexts for manifestmerge
Matt Mackall <mpm@selenic.com>
parents: 3292
diff changeset
   439
                if repo.ui.prompt(
5670
840e2b315c1f Fix misleading error and prompts during update/merge (issue556)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 5489
diff changeset
   440
                    _(" local changed %s which remote deleted\n"
840e2b315c1f Fix misleading error and prompts during update/merge (issue556)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 5489
diff changeset
   441
                      "use (c)hanged version or (d)elete?") % f,
840e2b315c1f Fix misleading error and prompts during update/merge (issue556)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 5489
diff changeset
   442
                    _("[cd]"), _("c")) == _("d"):
3307
f009a6f12a59 merge: swap file and mode args for act()
Matt Mackall <mpm@selenic.com>
parents: 3306
diff changeset
   443
                    act("prompt delete", "r", f)
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
   444
            else:
3307
f009a6f12a59 merge: swap file and mode args for act()
Matt Mackall <mpm@selenic.com>
parents: 3306
diff changeset
   445
                act("other deleted", "r", f)
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
   446
        else:
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
   447
            # file is created on branch or in working directory
3120
1c1e59aac82a merge: simplify local created logic
Matt Mackall <mpm@selenic.com>
parents: 3119
diff changeset
   448
            if (overwrite and n[20:] != "u") or (backwards and not n[20:]):
3307
f009a6f12a59 merge: swap file and mode args for act()
Matt Mackall <mpm@selenic.com>
parents: 3306
diff changeset
   449
                act("remote deleted", "r", f)
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
   450
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
   451
    for f, n in m2.iteritems():
3248
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3247
diff changeset
   452
        if partial and not partial(f):
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3247
diff changeset
   453
            continue
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3247
diff changeset
   454
        if f in m1:
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3247
diff changeset
   455
            continue
3729
581d20773326 merge: add copied hash to simplify copy logic
Matt Mackall <mpm@selenic.com>
parents: 3728
diff changeset
   456
        if f in copied:
581d20773326 merge: add copied hash to simplify copy logic
Matt Mackall <mpm@selenic.com>
parents: 3728
diff changeset
   457
            continue
3249
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
   458
        if f in copy:
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
   459
            f2 = copy[f]
3733
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   460
            if f2 not in m1: # directory rename
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   461
                act("local renamed directory to " + f2, "d",
4007
20da40cc1c73 symlinks: minimal support for symlinks in merge/update
Matt Mackall <mpm@selenic.com>
parents: 4006
diff changeset
   462
                    None, f, f2, m2.flags(f))
3733
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   463
            elif f2 in m2: # rename case 1, A/A,B/A
3730
d377f8d25662 merge: only store one direction of copies in the copy map
Matt Mackall <mpm@selenic.com>
parents: 3729
diff changeset
   464
                act("remote copied to " + f, "m",
d377f8d25662 merge: only store one direction of copies in the copy map
Matt Mackall <mpm@selenic.com>
parents: 3729
diff changeset
   465
                    f2, f, f, fmerge(f2, f, f2), False)
d377f8d25662 merge: only store one direction of copies in the copy map
Matt Mackall <mpm@selenic.com>
parents: 3729
diff changeset
   466
            else: # case 3,20 A/B/A
d377f8d25662 merge: only store one direction of copies in the copy map
Matt Mackall <mpm@selenic.com>
parents: 3729
diff changeset
   467
                act("remote moved to " + f, "m",
d377f8d25662 merge: only store one direction of copies in the copy map
Matt Mackall <mpm@selenic.com>
parents: 3729
diff changeset
   468
                    f2, f, f, fmerge(f2, f, f2), True)
3249
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
   469
        elif f in ma:
3116
920f54a2249e merge: more simplification of m2 manifest scanning
Matt Mackall <mpm@selenic.com>
parents: 3115
diff changeset
   470
            if overwrite or backwards:
4007
20da40cc1c73 symlinks: minimal support for symlinks in merge/update
Matt Mackall <mpm@selenic.com>
parents: 4006
diff changeset
   471
                act("recreating", "g", f, m2.flags(f))
3116
920f54a2249e merge: more simplification of m2 manifest scanning
Matt Mackall <mpm@selenic.com>
parents: 3115
diff changeset
   472
            elif n != ma[f]:
3295
72d1e521da77 merge: use contexts for manifestmerge
Matt Mackall <mpm@selenic.com>
parents: 3292
diff changeset
   473
                if repo.ui.prompt(
5670
840e2b315c1f Fix misleading error and prompts during update/merge (issue556)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 5489
diff changeset
   474
                    _("remote changed %s which local deleted\n"
840e2b315c1f Fix misleading error and prompts during update/merge (issue556)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 5489
diff changeset
   475
                      "use (c)hanged version or leave (d)eleted?") % f,
840e2b315c1f Fix misleading error and prompts during update/merge (issue556)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 5489
diff changeset
   476
                    _("[cd]"), _("c")) == _("c"):
4007
20da40cc1c73 symlinks: minimal support for symlinks in merge/update
Matt Mackall <mpm@selenic.com>
parents: 4006
diff changeset
   477
                    act("prompt recreating", "g", f, m2.flags(f))
3115
bb74f809bc95 merge: reorder tests on m2 items in manifestmerge
Matt Mackall <mpm@selenic.com>
parents: 3114
diff changeset
   478
        else:
4007
20da40cc1c73 symlinks: minimal support for symlinks in merge/update
Matt Mackall <mpm@selenic.com>
parents: 4006
diff changeset
   479
            act("remote created", "g", f, m2.flags(f))
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
   480
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
   481
    return action
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
   482
3297
69b9471f26bb merge: pass contexts to applyupdates
Matt Mackall <mpm@selenic.com>
parents: 3296
diff changeset
   483
def applyupdates(repo, action, wctx, mctx):
3315
38be819a1225 merge: update some docstrings
Matt Mackall <mpm@selenic.com>
parents: 3314
diff changeset
   484
    "apply the merge action list to the working directory"
38be819a1225 merge: update some docstrings
Matt Mackall <mpm@selenic.com>
parents: 3314
diff changeset
   485
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   486
    updated, merged, removed, unresolved = 0, 0, 0, 0
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   487
    action.sort()
5042
f191bc3916f7 merge: do early copy to deal with issue636
Matt Mackall <mpm@selenic.com>
parents: 4997
diff changeset
   488
    # prescan for copy/renames
f191bc3916f7 merge: do early copy to deal with issue636
Matt Mackall <mpm@selenic.com>
parents: 4997
diff changeset
   489
    for a in action:
f191bc3916f7 merge: do early copy to deal with issue636
Matt Mackall <mpm@selenic.com>
parents: 4997
diff changeset
   490
        f, m = a[:2]
f191bc3916f7 merge: do early copy to deal with issue636
Matt Mackall <mpm@selenic.com>
parents: 4997
diff changeset
   491
        if m == 'm': # merge
f191bc3916f7 merge: do early copy to deal with issue636
Matt Mackall <mpm@selenic.com>
parents: 4997
diff changeset
   492
            f2, fd, flags, move = a[2:]
f191bc3916f7 merge: do early copy to deal with issue636
Matt Mackall <mpm@selenic.com>
parents: 4997
diff changeset
   493
            if f != fd:
f191bc3916f7 merge: do early copy to deal with issue636
Matt Mackall <mpm@selenic.com>
parents: 4997
diff changeset
   494
                repo.ui.debug(_("copying %s to %s\n") % (f, fd))
f191bc3916f7 merge: do early copy to deal with issue636
Matt Mackall <mpm@selenic.com>
parents: 4997
diff changeset
   495
                repo.wwrite(fd, repo.wread(f), flags)
f191bc3916f7 merge: do early copy to deal with issue636
Matt Mackall <mpm@selenic.com>
parents: 4997
diff changeset
   496
5158
d316124ebbea Make audit_path more stringent.
Bryan O'Sullivan <bos@serpentine.com>
parents: 5060
diff changeset
   497
    audit_path = util.path_auditor(repo.root)
d316124ebbea Make audit_path more stringent.
Bryan O'Sullivan <bos@serpentine.com>
parents: 5060
diff changeset
   498
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   499
    for a in action:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   500
        f, m = a[:2]
3733
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   501
        if f and f[0] == "/":
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   502
            continue
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   503
        if m == "r": # remove
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   504
            repo.ui.note(_("removing %s\n") % f)
5158
d316124ebbea Make audit_path more stringent.
Bryan O'Sullivan <bos@serpentine.com>
parents: 5060
diff changeset
   505
            audit_path(f)
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   506
            try:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   507
                util.unlink(repo.wjoin(f))
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   508
            except OSError, inst:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   509
                if inst.errno != errno.ENOENT:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   510
                    repo.ui.warn(_("update failed to remove %s: %s!\n") %
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   511
                                 (f, inst.strerror))
3673
eb0b4a2d70a9 white space and line break cleanups
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3618
diff changeset
   512
            removed += 1
3308
ecc1bf27378c merge: unify merge and copy actions
Matt Mackall <mpm@selenic.com>
parents: 3307
diff changeset
   513
        elif m == "m": # merge
4007
20da40cc1c73 symlinks: minimal support for symlinks in merge/update
Matt Mackall <mpm@selenic.com>
parents: 4006
diff changeset
   514
            f2, fd, flags, move = a[2:]
5042
f191bc3916f7 merge: do early copy to deal with issue636
Matt Mackall <mpm@selenic.com>
parents: 4997
diff changeset
   515
            r = filemerge(repo, f, fd, f2, wctx, mctx)
3400
d2b55e3c4e25 merge: if filemerge skips merge, report as updated
Matt Mackall <mpm@selenic.com>
parents: 3372
diff changeset
   516
            if r > 0:
3249
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
   517
                unresolved += 1
3309
e8be5942335d merge: pull file copy/move out of filemerge
Matt Mackall <mpm@selenic.com>
parents: 3308
diff changeset
   518
            else:
3400
d2b55e3c4e25 merge: if filemerge skips merge, report as updated
Matt Mackall <mpm@selenic.com>
parents: 3372
diff changeset
   519
                if r is None:
d2b55e3c4e25 merge: if filemerge skips merge, report as updated
Matt Mackall <mpm@selenic.com>
parents: 3372
diff changeset
   520
                    updated += 1
d2b55e3c4e25 merge: if filemerge skips merge, report as updated
Matt Mackall <mpm@selenic.com>
parents: 3372
diff changeset
   521
                else:
d2b55e3c4e25 merge: if filemerge skips merge, report as updated
Matt Mackall <mpm@selenic.com>
parents: 3372
diff changeset
   522
                    merged += 1
5704
5049bbf988e1 merge: use util.set_flags
Matt Mackall <mpm@selenic.com>
parents: 5700
diff changeset
   523
            util.set_flags(repo.wjoin(fd), flags)
5059
8d9bdcbb2b18 merge: avoid double deletion mentioned in issue636
Matt Mackall <mpm@selenic.com>
parents: 5042
diff changeset
   524
            if f != fd and move and util.lexists(repo.wjoin(f)):
5042
f191bc3916f7 merge: do early copy to deal with issue636
Matt Mackall <mpm@selenic.com>
parents: 4997
diff changeset
   525
                repo.ui.debug(_("removing %s\n") % f)
f191bc3916f7 merge: do early copy to deal with issue636
Matt Mackall <mpm@selenic.com>
parents: 4997
diff changeset
   526
                os.unlink(repo.wjoin(f))
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   527
        elif m == "g": # get
4007
20da40cc1c73 symlinks: minimal support for symlinks in merge/update
Matt Mackall <mpm@selenic.com>
parents: 4006
diff changeset
   528
            flags = a[2]
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   529
            repo.ui.note(_("getting %s\n") % f)
3303
488d3062d225 merge: eliminate nodes from action list
Matt Mackall <mpm@selenic.com>
parents: 3299
diff changeset
   530
            t = mctx.filectx(f).data()
4007
20da40cc1c73 symlinks: minimal support for symlinks in merge/update
Matt Mackall <mpm@selenic.com>
parents: 4006
diff changeset
   531
            repo.wwrite(f, t, flags)
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   532
            updated += 1
3733
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   533
        elif m == "d": # directory rename
4007
20da40cc1c73 symlinks: minimal support for symlinks in merge/update
Matt Mackall <mpm@selenic.com>
parents: 4006
diff changeset
   534
            f2, fd, flags = a[2:]
3733
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   535
            if f:
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   536
                repo.ui.note(_("moving %s to %s\n") % (f, fd))
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   537
                t = wctx.filectx(f).data()
4007
20da40cc1c73 symlinks: minimal support for symlinks in merge/update
Matt Mackall <mpm@selenic.com>
parents: 4006
diff changeset
   538
                repo.wwrite(fd, t, flags)
3733
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   539
                util.unlink(repo.wjoin(f))
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   540
            if f2:
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   541
                repo.ui.note(_("getting %s to %s\n") % (f2, fd))
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   542
                t = mctx.filectx(f2).data()
4007
20da40cc1c73 symlinks: minimal support for symlinks in merge/update
Matt Mackall <mpm@selenic.com>
parents: 4006
diff changeset
   543
                repo.wwrite(fd, t, flags)
3733
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   544
            updated += 1
4674
723e0ddb6ada merge: warn user about divergent renames
Matt Mackall <mpm@selenic.com>
parents: 4635
diff changeset
   545
        elif m == "dr": # divergent renames
723e0ddb6ada merge: warn user about divergent renames
Matt Mackall <mpm@selenic.com>
parents: 4635
diff changeset
   546
            fl = a[2]
723e0ddb6ada merge: warn user about divergent renames
Matt Mackall <mpm@selenic.com>
parents: 4635
diff changeset
   547
            repo.ui.warn("warning: detected divergent renames of %s to:\n" % f)
723e0ddb6ada merge: warn user about divergent renames
Matt Mackall <mpm@selenic.com>
parents: 4635
diff changeset
   548
            for nf in fl:
723e0ddb6ada merge: warn user about divergent renames
Matt Mackall <mpm@selenic.com>
parents: 4635
diff changeset
   549
                repo.ui.warn(" %s\n" % nf)
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   550
        elif m == "e": # exec
4007
20da40cc1c73 symlinks: minimal support for symlinks in merge/update
Matt Mackall <mpm@selenic.com>
parents: 4006
diff changeset
   551
            flags = a[2]
5704
5049bbf988e1 merge: use util.set_flags
Matt Mackall <mpm@selenic.com>
parents: 5700
diff changeset
   552
            util.set_flags(repo.wjoin(f), flags)
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   553
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   554
    return updated, merged, removed, unresolved
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   555
3372
ba7c74081861 merge: update dirstate correctly for non-branchmerge updates
Matt Mackall <mpm@selenic.com>
parents: 3371
diff changeset
   556
def recordupdates(repo, action, branchmerge):
3315
38be819a1225 merge: update some docstrings
Matt Mackall <mpm@selenic.com>
parents: 3314
diff changeset
   557
    "record merge actions to the dirstate"
38be819a1225 merge: update some docstrings
Matt Mackall <mpm@selenic.com>
parents: 3314
diff changeset
   558
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   559
    for a in action:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   560
        f, m = a[:2]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   561
        if m == "r": # remove
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   562
            if branchmerge:
4904
6fd953d5faea dirstate: break update into separate functions
Matt Mackall <mpm@selenic.com>
parents: 4884
diff changeset
   563
                repo.dirstate.remove(f)
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   564
            else:
4904
6fd953d5faea dirstate: break update into separate functions
Matt Mackall <mpm@selenic.com>
parents: 4884
diff changeset
   565
                repo.dirstate.forget(f)
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   566
        elif m == "f": # forget
4904
6fd953d5faea dirstate: break update into separate functions
Matt Mackall <mpm@selenic.com>
parents: 4884
diff changeset
   567
            repo.dirstate.forget(f)
4997
60c54154ec4c merge: don't forget to update the dirstate for exec bit changes
Matt Mackall <mpm@selenic.com>
parents: 4884
diff changeset
   568
        elif m in "ge": # get or exec change
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   569
            if branchmerge:
4904
6fd953d5faea dirstate: break update into separate functions
Matt Mackall <mpm@selenic.com>
parents: 4884
diff changeset
   570
                repo.dirstate.normaldirty(f)
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   571
            else:
4904
6fd953d5faea dirstate: break update into separate functions
Matt Mackall <mpm@selenic.com>
parents: 4884
diff changeset
   572
                repo.dirstate.normal(f)
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   573
        elif m == "m": # merge
3303
488d3062d225 merge: eliminate nodes from action list
Matt Mackall <mpm@selenic.com>
parents: 3299
diff changeset
   574
            f2, fd, flag, move = a[2:]
3251
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
   575
            if branchmerge:
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
   576
                # We've done a branch merge, mark this file as merged
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
   577
                # so that we properly record the merger later
4904
6fd953d5faea dirstate: break update into separate functions
Matt Mackall <mpm@selenic.com>
parents: 4884
diff changeset
   578
                repo.dirstate.merge(fd)
3372
ba7c74081861 merge: update dirstate correctly for non-branchmerge updates
Matt Mackall <mpm@selenic.com>
parents: 3371
diff changeset
   579
                if f != f2: # copy/rename
ba7c74081861 merge: update dirstate correctly for non-branchmerge updates
Matt Mackall <mpm@selenic.com>
parents: 3371
diff changeset
   580
                    if move:
4904
6fd953d5faea dirstate: break update into separate functions
Matt Mackall <mpm@selenic.com>
parents: 4884
diff changeset
   581
                        repo.dirstate.remove(f)
3372
ba7c74081861 merge: update dirstate correctly for non-branchmerge updates
Matt Mackall <mpm@selenic.com>
parents: 3371
diff changeset
   582
                    if f != fd:
ba7c74081861 merge: update dirstate correctly for non-branchmerge updates
Matt Mackall <mpm@selenic.com>
parents: 3371
diff changeset
   583
                        repo.dirstate.copy(f, fd)
ba7c74081861 merge: update dirstate correctly for non-branchmerge updates
Matt Mackall <mpm@selenic.com>
parents: 3371
diff changeset
   584
                    else:
ba7c74081861 merge: update dirstate correctly for non-branchmerge updates
Matt Mackall <mpm@selenic.com>
parents: 3371
diff changeset
   585
                        repo.dirstate.copy(f2, fd)
3251
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
   586
            else:
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
   587
                # We've update-merged a locally modified file, so
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
   588
                # we set the dirstate to emulate a normal checkout
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
   589
                # of that file some time in the past. Thus our
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
   590
                # merge will appear as a normal local file
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
   591
                # modification.
5210
90d9ec0dc69d merge: forcefully mark files that we get from the second parent as dirty
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5161
diff changeset
   592
                repo.dirstate.normallookup(fd)
3308
ecc1bf27378c merge: unify merge and copy actions
Matt Mackall <mpm@selenic.com>
parents: 3307
diff changeset
   593
                if move:
4904
6fd953d5faea dirstate: break update into separate functions
Matt Mackall <mpm@selenic.com>
parents: 4884
diff changeset
   594
                    repo.dirstate.forget(f)
3733
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   595
        elif m == "d": # directory rename
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   596
            f2, fd, flag = a[2:]
4819
9797124581c9 merge: fix adding untracked files on directory rename (issue612)
Matt Mackall <mpm@selenic.com>
parents: 4748
diff changeset
   597
            if not f2 and f not in repo.dirstate:
9797124581c9 merge: fix adding untracked files on directory rename (issue612)
Matt Mackall <mpm@selenic.com>
parents: 4748
diff changeset
   598
                # untracked file moved
9797124581c9 merge: fix adding untracked files on directory rename (issue612)
Matt Mackall <mpm@selenic.com>
parents: 4748
diff changeset
   599
                continue
3733
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   600
            if branchmerge:
4904
6fd953d5faea dirstate: break update into separate functions
Matt Mackall <mpm@selenic.com>
parents: 4884
diff changeset
   601
                repo.dirstate.add(fd)
3733
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   602
                if f:
4904
6fd953d5faea dirstate: break update into separate functions
Matt Mackall <mpm@selenic.com>
parents: 4884
diff changeset
   603
                    repo.dirstate.remove(f)
3733
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   604
                    repo.dirstate.copy(f, fd)
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   605
                if f2:
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   606
                    repo.dirstate.copy(f2, fd)
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   607
            else:
4904
6fd953d5faea dirstate: break update into separate functions
Matt Mackall <mpm@selenic.com>
parents: 4884
diff changeset
   608
                repo.dirstate.normal(fd)
3733
9e67fecbfd16 merge: handle directory renames
Matt Mackall <mpm@selenic.com>
parents: 3732
diff changeset
   609
                if f:
4904
6fd953d5faea dirstate: break update into separate functions
Matt Mackall <mpm@selenic.com>
parents: 4884
diff changeset
   610
                    repo.dirstate.forget(f)
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
   611
4917
126f527b3ba3 Make repo locks recursive, eliminate all passing of lock/wlock
Matt Mackall <mpm@selenic.com>
parents: 4915
diff changeset
   612
def update(repo, node, branchmerge, force, partial):
3315
38be819a1225 merge: update some docstrings
Matt Mackall <mpm@selenic.com>
parents: 3314
diff changeset
   613
    """
38be819a1225 merge: update some docstrings
Matt Mackall <mpm@selenic.com>
parents: 3314
diff changeset
   614
    Perform a merge between the working directory and the given node
38be819a1225 merge: update some docstrings
Matt Mackall <mpm@selenic.com>
parents: 3314
diff changeset
   615
38be819a1225 merge: update some docstrings
Matt Mackall <mpm@selenic.com>
parents: 3314
diff changeset
   616
    branchmerge = whether to merge between branches
38be819a1225 merge: update some docstrings
Matt Mackall <mpm@selenic.com>
parents: 3314
diff changeset
   617
    force = whether to force branch merging or file overwriting
38be819a1225 merge: update some docstrings
Matt Mackall <mpm@selenic.com>
parents: 3314
diff changeset
   618
    partial = a function to filter file lists (dirstate not updated)
38be819a1225 merge: update some docstrings
Matt Mackall <mpm@selenic.com>
parents: 3314
diff changeset
   619
    """
2815
4870f795f681 Merge: combine force and forcemerge arguments
Matt Mackall <mpm@selenic.com>
parents: 2814
diff changeset
   620
4917
126f527b3ba3 Make repo locks recursive, eliminate all passing of lock/wlock
Matt Mackall <mpm@selenic.com>
parents: 4915
diff changeset
   621
    wlock = repo.wlock()
4915
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   622
    try:
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   623
        wc = repo.workingctx()
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   624
        if node is None:
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   625
            # tip of current branch
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   626
            try:
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   627
                node = repo.branchtags()[wc.branch()]
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   628
            except KeyError:
5570
78a6b985882f update: default to tipmost branch if default branch doesn't exist
Matt Mackall <mpm@selenic.com>
parents: 5489
diff changeset
   629
                if wc.branch() == "default": # no default branch!
78a6b985882f update: default to tipmost branch if default branch doesn't exist
Matt Mackall <mpm@selenic.com>
parents: 5489
diff changeset
   630
                    node = repo.lookup("tip") # update to tip
78a6b985882f update: default to tipmost branch if default branch doesn't exist
Matt Mackall <mpm@selenic.com>
parents: 5489
diff changeset
   631
                else:
78a6b985882f update: default to tipmost branch if default branch doesn't exist
Matt Mackall <mpm@selenic.com>
parents: 5489
diff changeset
   632
                    raise util.Abort(_("branch %s not found") % wc.branch())
4915
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   633
        overwrite = force and not branchmerge
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   634
        forcemerge = force and branchmerge
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   635
        pl = wc.parents()
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   636
        p1, p2 = pl[0], repo.changectx(node)
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   637
        pa = p1.ancestor(p2)
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   638
        fp1, fp2, xp1, xp2 = p1.node(), p2.node(), str(p1), str(p2)
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   639
        fastforward = False
3314
b16456909a0a merge: various tidying
Matt Mackall <mpm@selenic.com>
parents: 3312
diff changeset
   640
4915
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   641
        ### check phase
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   642
        if not overwrite and len(pl) > 1:
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   643
            raise util.Abort(_("outstanding uncommitted merges"))
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   644
        if pa == p1 or pa == p2: # is there a linear path from p1 to p2?
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   645
            if branchmerge:
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   646
                if p1.branch() != p2.branch() and pa != p2:
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   647
                    fastforward = True
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   648
                else:
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   649
                    raise util.Abort(_("there is nothing to merge, just use "
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   650
                                       "'hg update' or look at 'hg heads'"))
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   651
        elif not (overwrite or branchmerge):
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   652
            raise util.Abort(_("update spans branches, use 'hg merge' "
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   653
                               "or 'hg update -C' to lose changes"))
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   654
        if branchmerge and not forcemerge:
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   655
            if wc.files():
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   656
                raise util.Abort(_("outstanding uncommitted changes"))
2814
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
   657
4915
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   658
        ### calculate phase
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   659
        action = []
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   660
        if not force:
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   661
            checkunknown(wc, p2)
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   662
        if not util.checkfolding(repo.path):
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   663
            checkcollision(p2)
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   664
        if not branchmerge:
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   665
            action += forgetremoved(wc, p2)
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   666
        action += manifestmerge(repo, wc, p2, pa, overwrite, partial)
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   667
4915
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   668
        ### apply phase
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   669
        if not branchmerge: # just jump to the new rev
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   670
            fp1, fp2, xp1, xp2 = fp2, nullid, xp2, ''
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   671
        if not partial:
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   672
            repo.hook('preupdate', throw=True, parent1=xp1, parent2=xp2)
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   673
4915
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   674
        stats = applyupdates(repo, action, wc, p2)
2899
8743188f4d2e merge: consolidate dirstate updates
Matt Mackall <mpm@selenic.com>
parents: 2898
diff changeset
   675
4915
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   676
        if not partial:
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   677
            recordupdates(repo, action, branchmerge)
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   678
            repo.dirstate.setparents(fp1, fp2)
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   679
            if not branchmerge and not fastforward:
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   680
                repo.dirstate.setbranch(p2.branch())
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   681
            repo.hook('update', parent1=xp1, parent2=xp2, error=stats[3])
3314
b16456909a0a merge: various tidying
Matt Mackall <mpm@selenic.com>
parents: 3312
diff changeset
   682
4915
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   683
        return stats
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   684
    finally:
97b734fb9c6f Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents: 4904
diff changeset
   685
        del wlock