hgext/hgk.py
author Matt Mackall <mpm@selenic.com>
Thu, 26 Jun 2008 14:35:46 -0500
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child 6750 fb42030d79d6
permissions -rw-r--r--
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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
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# of the GNU General Public License, incorporated herein by reference.
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'''browsing 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
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not 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 hgk.py can be found in the hgext directory.
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To load the hgext.py extension, add it to your .hgrc file (you have
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to use your global $HOME/.hgrc file, not one in a repository). You
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can specify an absolute path:
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  [extensions]
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  hgk=/usr/local/lib/hgk.py
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Mercurial can also scan the default python library path for a file
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named 'hgk.py' if you set hgk empty:
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  [extensions]
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  hgk=
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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
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specify the path to hgk in your .hgrc 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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import os
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from mercurial import commands, util, patch, revlog, cmdutil
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from mercurial.node import nullid, nullrev, short
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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=[]):
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        assert node2 is not None
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        mmap = repo[node1].manifest()
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        mmap2 = repo[node2].manifest()
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        m = cmdutil.match(repo, files)
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        status = repo.status(node1, node2, match=m)[:5]
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        modified, added, removed, deleted, unknown = status
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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['stdin']:
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            try:
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                line = raw_input().split(' ')
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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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            except EOFError:
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                break
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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['patch']:
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            if opts['pretty']:
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                catcommit(ui, repo, node2, "")
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            m = cmdutil.match(repo, files)
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            patch.diff(repo, node1, node2, match=m,
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                       opts=patch.diffopts(ui, {'git': True}))
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        else:
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            __difftree(repo, node1, node2, files=files)
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        if not opts['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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    (p1, p2) = ctx.parents()
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    ui.write("tree %s\n" % short(ctx.changeset()[0])) # use ctx.node() instead ??
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    if p1: ui.write("parent %s\n" % short(p1.node()))
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    if p2: ui.write("parent %s\n" % short(p2.node()))
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    date = ctx.date()
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    description = ctx.description().replace("\0", "")
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    lines = description.splitlines()
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    if lines and lines[-1].startswith('committer:'):
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        committer = lines[-1].split(': ')[1].rstrip()
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    else:
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        committer = ctx.user()
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    ui.write("author %s %s %s\n" % (ctx.user(), int(date[0]), date[1]))
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    ui.write("committer %s %s %s\n" % (committer, int(date[0]), date[1]))
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    ui.write("revision %d\n" % ctx.rev())
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    ui.write("branch %s\n\n" % ctx.branch())
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    if prefix != "":
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   125
        ui.write("%s%s\n" % (prefix, description.replace('\n', nlprefix).strip()))
267
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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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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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   135
    n = repo.changelog.ancestor(node1, node2)
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   136
    ui.write(short(n) + "\n")
267
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def catfile(ui, repo, type=None, r=None, **opts):
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   139
    """cat a specific revision"""
267
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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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    if opts['stdin']:
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   146
        try:
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            (type, r) = raw_input().split(' ');
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            prefix = "    "
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   149
        except EOFError:
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   150
            return
267
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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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   155
            commands.help_(ui, 'cat-file')
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   157
    while r:
334
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   158
        if type != "commit":
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   159
            ui.warn("aborting hg cat-file only understands commits\n")
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   160
            return 1;
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        n = repo.lookup(r)
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        catcommit(ui, repo, n, prefix)
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   163
        if opts['stdin']:
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   164
            try:
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   165
                (type, r) = raw_input().split(' ');
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   166
            except EOFError:
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   167
                break
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   168
        else:
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   169
            break
267
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   171
# 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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   175
# you can specify a commit to stop at by starting the sha1 with ^
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   176
def revtree(ui, args, repo, full="tree", maxnr=0, parents=False):
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    def chlogwalk():
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   178
        count = repo.changelog.count()
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        i = count
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        l = [0] * 100
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   181
        chunk = 100
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   182
        while True:
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   183
            if chunk > i:
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   184
                chunk = i
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   185
                i = 0
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   186
            else:
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   187
                i -= chunk
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   188
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   189
            for x in xrange(0, chunk):
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   190
                if i + x >= count:
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   191
                    l[chunk - x:] = [0] * (chunk - x)
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   192
                    break
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   193
                if full != None:
6747
f6c00b17387c use repo[changeid] to get a changectx
Matt Mackall <mpm@selenic.com>
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diff changeset
   194
                    l[x] = repo[i + x]
3981
180670f14045 hgk: (re)optimize reading of changelog and manifest
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3979
diff changeset
   195
                    l[x].changeset() # force reading
1239
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diff changeset
   196
                else:
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diff changeset
   197
                    l[x] = 1
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diff changeset
   198
            for x in xrange(chunk-1, -1, -1):
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diff changeset
   199
                if l[x] != 0:
29f17e083e84 Turn hgit into an extension, and add commands supporting the latest gitk
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diff changeset
   200
                    yield (i + x, full != None and l[x] or None)
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diff changeset
   201
            if i == 0:
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   202
                break
1308
2073e5a71008 Cleanup of tabs and trailing spaces.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1278
diff changeset
   203
267
497aa6d276d2 Initial import of hgit and hgk
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   204
    # calculate and return the reachability bitmask for sha
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   205
    def is_reachable(ar, reachable, sha):
334
290574209284 hgit: remove tabs
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diff changeset
   206
        if len(ar) == 0:
290574209284 hgit: remove tabs
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diff changeset
   207
            return 1
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   208
        mask = 0
3473
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parents: 3180
diff changeset
   209
        for i in xrange(len(ar)):
334
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diff changeset
   210
            if sha in reachable[i]:
290574209284 hgit: remove tabs
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diff changeset
   211
                mask |= 1 << i
267
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   212
334
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diff changeset
   213
        return mask
267
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diff changeset
   214
497aa6d276d2 Initial import of hgit and hgk
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   215
    reachable = []
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   216
    stop_sha1 = []
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   217
    want_sha1 = []
356
7dec9a46d82a hgit rev-list support
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diff changeset
   218
    count = 0
267
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   219
497aa6d276d2 Initial import of hgit and hgk
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   220
    # figure out which commits they are asking for and which ones they
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   221
    # want us to stop on
3473
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diff changeset
   222
    for i in xrange(len(args)):
720
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diff changeset
   223
        if args[i].startswith('^'):
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diff changeset
   224
            s = repo.lookup(args[i][1:])
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   225
            stop_sha1.append(s)
334
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   226
            want_sha1.append(s)
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diff changeset
   227
        elif args[i] != 'HEAD':
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diff changeset
   228
            want_sha1.append(repo.lookup(args[i]))
356
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diff changeset
   229
267
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diff changeset
   230
    # calculate the graph for the supplied commits
3473
0e68608bd11d use xrange instead of range
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parents: 3180
diff changeset
   231
    for i in xrange(len(want_sha1)):
334
290574209284 hgit: remove tabs
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diff changeset
   232
        reachable.append({});
720
095dd8c757e0 Change hgit revision lookup to use repo.lookup
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diff changeset
   233
        n = want_sha1[i];
334
290574209284 hgit: remove tabs
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diff changeset
   234
        visit = [n];
290574209284 hgit: remove tabs
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diff changeset
   235
        reachable[i][n] = 1
290574209284 hgit: remove tabs
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diff changeset
   236
        while visit:
290574209284 hgit: remove tabs
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diff changeset
   237
            n = visit.pop(0)
290574209284 hgit: remove tabs
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diff changeset
   238
            if n in stop_sha1:
1243
9d10f89b75a5 Fix hgit revtree bug with stop revision handling
root@coffee.suse.com
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diff changeset
   239
                continue
334
290574209284 hgit: remove tabs
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diff changeset
   240
            for p in repo.changelog.parents(n):
290574209284 hgit: remove tabs
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diff changeset
   241
                if p not in reachable[i]:
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diff changeset
   242
                    reachable[i][p] = 1
290574209284 hgit: remove tabs
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diff changeset
   243
                    visit.append(p)
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diff changeset
   244
                if p in stop_sha1:
1243
9d10f89b75a5 Fix hgit revtree bug with stop revision handling
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diff changeset
   245
                    continue
356
7dec9a46d82a hgit rev-list support
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diff changeset
   246
267
497aa6d276d2 Initial import of hgit and hgk
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   247
    # walk the repository looking for commits that are in our
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   248
    # reachability graph
3979
e0d13267f7a4 hgk: use contexts
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3978
diff changeset
   249
    for i, ctx in chlogwalk():
334
290574209284 hgit: remove tabs
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diff changeset
   250
        n = repo.changelog.node(i)
290574209284 hgit: remove tabs
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diff changeset
   251
        mask = is_reachable(want_sha1, reachable, n)
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diff changeset
   252
        if mask:
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   253
            parentstr = ""
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diff changeset
   254
            if parents:
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   255
                pp = repo.changelog.parents(n)
6217
fe8dbbe9520d Avoid importing mercurial.node/mercurial.repo stuff from mercurial.hg
Joel Rosdahl <joel@rosdahl.net>
parents: 6212
diff changeset
   256
                if pp[0] != nullid:
fe8dbbe9520d Avoid importing mercurial.node/mercurial.repo stuff from mercurial.hg
Joel Rosdahl <joel@rosdahl.net>
parents: 6212
diff changeset
   257
                    parentstr += " " + short(pp[0])
fe8dbbe9520d Avoid importing mercurial.node/mercurial.repo stuff from mercurial.hg
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parents: 6212
diff changeset
   258
                if pp[1] != nullid:
fe8dbbe9520d Avoid importing mercurial.node/mercurial.repo stuff from mercurial.hg
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parents: 6212
diff changeset
   259
                    parentstr += " " + short(pp[1])
356
7dec9a46d82a hgit rev-list support
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diff changeset
   260
            if not full:
6217
fe8dbbe9520d Avoid importing mercurial.node/mercurial.repo stuff from mercurial.hg
Joel Rosdahl <joel@rosdahl.net>
parents: 6212
diff changeset
   261
                ui.write("%s%s\n" % (short(n), parentstr))
3064
fe5c92529d1c hgk.py: fix warnings from pychecker
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3063
diff changeset
   262
            elif full == "commit":
6217
fe8dbbe9520d Avoid importing mercurial.node/mercurial.repo stuff from mercurial.hg
Joel Rosdahl <joel@rosdahl.net>
parents: 6212
diff changeset
   263
                ui.write("%s%s\n" % (short(n), parentstr))
5878
d39af2eabb8c transform a bunch of print statements to appropriate ui calls
Matt Mackall <mpm@selenic.com>
parents: 5859
diff changeset
   264
                catcommit(ui, repo, n, '    ', ctx)
356
7dec9a46d82a hgit rev-list support
mpm@selenic.com
parents: 350
diff changeset
   265
            else:
7dec9a46d82a hgit rev-list support
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parents: 350
diff changeset
   266
                (p1, p2) = repo.changelog.parents(n)
6217
fe8dbbe9520d Avoid importing mercurial.node/mercurial.repo stuff from mercurial.hg
Joel Rosdahl <joel@rosdahl.net>
parents: 6212
diff changeset
   267
                (h, h1, h2) = map(short, (n, p1, p2))
356
7dec9a46d82a hgit rev-list support
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diff changeset
   268
                (i1, i2) = map(repo.changelog.rev, (p1, p2))
267
497aa6d276d2 Initial import of hgit and hgk
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parents:
diff changeset
   269
3979
e0d13267f7a4 hgk: use contexts
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3978
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                date = ctx.date()[0]
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                ui.write("%s %s:%s" % (date, h, mask))
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                mask = is_reachable(want_sha1, reachable, p1)
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                if i1 != nullrev and mask > 0:
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                    ui.write("%s:%s " % (h1, mask)),
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                mask = is_reachable(want_sha1, reachable, p2)
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                if i2 != nullrev and mask > 0:
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                    ui.write("%s:%s " % (h2, mask))
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                ui.write("\n")
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            if maxnr and count >= maxnr:
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                break
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            count += 1
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def revparse(ui, repo, *revs, **opts):
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    """Parse given revisions"""
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    def revstr(rev):
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        if rev == 'HEAD':
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            rev = 'tip'
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        return revlog.hex(repo.lookup(rev))
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    for r in revs:
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        revrange = r.split(':', 1)
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        ui.write('%s\n' % revstr(revrange[0]))
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        if len(revrange) == 2:
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            ui.write('^%s\n' % revstr(revrange[1]))
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# git rev-list tries to order things by date, and has the ability to stop
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# at a given commit without walking the whole repo.  TODO add the stop
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# parameter
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def revlist(ui, repo, *revs, **opts):
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    """print revisions"""
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    if opts['header']:
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        full = "commit"
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    else:
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        full = None
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    copy = [x for x in revs]
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    revtree(ui, copy, repo, full, opts['max_count'], opts['parents'])
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def config(ui, repo, **opts):
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    """print extension options"""
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    def writeopt(name, value):
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        ui.write('k=%s\nv=%s\n' % (name, value))
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    writeopt('vdiff', ui.config('hgk', 'vdiff', ''))
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def view(ui, repo, *etc, **opts):
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    "start interactive history viewer"
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    os.chdir(repo.root)
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    optstr = ' '.join(['--%s %s' % (k, v) for k, v in opts.iteritems() if v])
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    cmd = ui.config("hgk", "path", "hgk") + " %s %s" % (optstr, " ".join(etc))
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    ui.debug("running %s\n" % cmd)
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    util.system(cmd)
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cmdtable = {
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    "^view":
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        (view,
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         [('l', 'limit', '', 'limit number of changes displayed')],
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         'hg view [-l LIMIT] [REVRANGE]'),
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    "debug-diff-tree":
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        (difftree,
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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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         'hg git-diff-tree [OPTION]... NODE1 NODE2 [FILE]...'),
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    "debug-cat-file":
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        (catfile,
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         [('s', 'stdin', None, 'stdin')],
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         'hg debug-cat-file [OPTION]... TYPE FILE'),
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    "debug-config":
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        (config, [], 'hg debug-config'),
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    "debug-merge-base":
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        (base, [], 'hg debug-merge-base node node'),
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    "debug-rev-parse":
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        (revparse,
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         [('', 'default', '', 'ignored')],
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         'hg debug-rev-parse REV'),
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    "debug-rev-list":
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        (revlist,
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         [('H', 'header', None, 'header'),
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          ('t', 'topo-order', None, 'topo-order'),
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          ('p', 'parents', None, 'parents'),
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          ('n', 'max-count', 0, 'max-count')],
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         'hg debug-rev-list [options] revs'),
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}