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# convcmd - convert extension commands definition
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#
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import
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import collections
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import os
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import shlex
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import shutil
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from mercurial.i18n import _
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from mercurial import (
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encoding,
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error,
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hg,
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pycompat,
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scmutil,
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util,
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)
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from . import (
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bzr,
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common,
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cvs,
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darcs,
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filemap,
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git,
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gnuarch,
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hg as hgconvert,
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monotone,
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p4,
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subversion,
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)
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mapfile = common.mapfile
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MissingTool = common.MissingTool
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NoRepo = common.NoRepo
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SKIPREV = common.SKIPREV
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bzr_source = bzr.bzr_source
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convert_cvs = cvs.convert_cvs
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convert_git = git.convert_git
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darcs_source = darcs.darcs_source
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gnuarch_source = gnuarch.gnuarch_source
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mercurial_sink = hgconvert.mercurial_sink
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mercurial_source = hgconvert.mercurial_source
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monotone_source = monotone.monotone_source
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p4_source = p4.p4_source
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svn_sink = subversion.svn_sink
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svn_source = subversion.svn_source
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orig_encoding = 'ascii'
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def recode(s):
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if isinstance(s, unicode):
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return s.encode(pycompat.sysstr(orig_encoding), 'replace')
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else:
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return s.decode('utf-8').encode(
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pycompat.sysstr(orig_encoding), 'replace')
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def mapbranch(branch, branchmap):
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'''
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>>> bmap = {b'default': b'branch1'}
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>>> for i in [b'', None]:
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... mapbranch(i, bmap)
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'branch1'
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'branch1'
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>>> bmap = {b'None': b'branch2'}
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>>> for i in [b'', None]:
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... mapbranch(i, bmap)
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'branch2'
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'branch2'
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>>> bmap = {b'None': b'branch3', b'default': b'branch4'}
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>>> for i in [b'None', b'', None, b'default', b'branch5']:
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... mapbranch(i, bmap)
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'branch3'
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'branch4'
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'branch4'
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'branch4'
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'branch5'
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'''
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# If branch is None or empty, this commit is coming from the source
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# repository's default branch and destined for the default branch in the
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# destination repository. For such commits, using a literal "default"
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# in branchmap below allows the user to map "default" to an alternate
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# default branch in the destination repository.
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branch = branchmap.get(branch or 'default', branch)
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# At some point we used "None" literal to denote the default branch,
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# attempt to use that for backward compatibility.
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if (not branch):
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branch = branchmap.get('None', branch)
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return branch
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source_converters = [
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('cvs', convert_cvs, 'branchsort'),
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('git', convert_git, 'branchsort'),
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('svn', svn_source, 'branchsort'),
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('hg', mercurial_source, 'sourcesort'),
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('darcs', darcs_source, 'branchsort'),
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('mtn', monotone_source, 'branchsort'),
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('gnuarch', gnuarch_source, 'branchsort'),
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('bzr', bzr_source, 'branchsort'),
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('p4', p4_source, 'branchsort'),
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]
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sink_converters = [
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('hg', mercurial_sink),
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('svn', svn_sink),
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]
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def convertsource(ui, path, type, revs):
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exceptions = []
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if type and type not in [s[0] for s in source_converters]:
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raise error.Abort(_('%s: invalid source repository type') % type)
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for name, source, sortmode in source_converters:
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try:
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if not type or name == type:
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return source(ui, name, path, revs), sortmode
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except (NoRepo, MissingTool) as inst:
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exceptions.append(inst)
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if not ui.quiet:
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for inst in exceptions:
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ui.write("%s\n" % inst)
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raise error.Abort(_('%s: missing or unsupported repository') % path)
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def convertsink(ui, path, type):
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if type and type not in [s[0] for s in sink_converters]:
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raise error.Abort(_('%s: invalid destination repository type') % type)
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for name, sink in sink_converters:
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try:
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if not type or name == type:
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return sink(ui, name, path)
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except NoRepo as inst:
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ui.note(_("convert: %s\n") % inst)
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except MissingTool as inst:
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raise error.Abort('%s\n' % inst)
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raise error.Abort(_('%s: unknown repository type') % path)
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class progresssource(object):
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def __init__(self, ui, source, filecount):
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self.ui = ui
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self.source = source
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self.filecount = filecount
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self.retrieved = 0
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def getfile(self, file, rev):
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self.retrieved += 1
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self.ui.progress(_('getting files'), self.retrieved,
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item=file, total=self.filecount, unit=_('files'))
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return self.source.getfile(file, rev)
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def targetfilebelongstosource(self, targetfilename):
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return self.source.targetfilebelongstosource(targetfilename)
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def lookuprev(self, rev):
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return self.source.lookuprev(rev)
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def close(self):
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self.ui.progress(_('getting files'), None)
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class converter(object):
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def __init__(self, ui, source, dest, revmapfile, opts):
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self.source = source
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self.dest = dest
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self.ui = ui
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self.opts = opts
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self.commitcache = {}
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self.authors = {}
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self.authorfile = None
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# Record converted revisions persistently: maps source revision
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# ID to target revision ID (both strings). (This is how
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# incremental conversions work.)
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self.map = mapfile(ui, revmapfile)
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# Read first the dst author map if any
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authorfile = self.dest.authorfile()
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if authorfile and os.path.exists(authorfile):
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self.readauthormap(authorfile)
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# Extend/Override with new author map if necessary
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if opts.get('authormap'):
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self.readauthormap(opts.get('authormap'))
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self.authorfile = self.dest.authorfile()
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self.splicemap = self.parsesplicemap(opts.get('splicemap'))
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self.branchmap = mapfile(ui, opts.get('branchmap'))
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def parsesplicemap(self, path):
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""" check and validate the splicemap format and
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return a child/parents dictionary.
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Format checking has two parts.
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1. generic format which is same across all source types
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2. specific format checking which may be different for
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different source type. This logic is implemented in
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checkrevformat function in source files like
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hg.py, subversion.py etc.
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"""
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if not path:
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return {}
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m = {}
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try:
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fp = open(path, 'rb')
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for i, line in enumerate(util.iterfile(fp)):
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line = line.splitlines()[0].rstrip()
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if not line:
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# Ignore blank lines
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continue
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# split line
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lex = shlex.shlex(line, posix=True)
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lex.whitespace_split = True
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lex.whitespace += ','
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line = list(lex)
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# check number of parents
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if not (2 <= len(line) <= 3):
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raise error.Abort(_('syntax error in %s(%d): child parent1'
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'[,parent2] expected') % (path, i + 1))
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for part in line:
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self.source.checkrevformat(part)
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child, p1, p2 = line[0], line[1:2], line[2:]
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if p1 == p2:
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m[child] = p1
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else:
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m[child] = p1 + p2
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# if file does not exist or error reading, exit
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except IOError:
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raise error.Abort(_('splicemap file not found or error reading %s:')
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% path)
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return m
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def walktree(self, heads):
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'''Return a mapping that identifies the uncommitted parents of every
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uncommitted changeset.'''
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visit = heads
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known = set()
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parents = {}
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numcommits = self.source.numcommits()
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while visit:
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n = visit.pop(0)
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if n in known:
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continue
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if n in self.map:
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m = self.map[n]
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if m == SKIPREV or self.dest.hascommitfrommap(m):
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continue
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known.add(n)
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self.ui.progress(_('scanning'), len(known), unit=_('revisions'),
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total=numcommits)
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commit = self.cachecommit(n)
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parents[n] = []
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for p in commit.parents:
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parents[n].append(p)
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visit.append(p)
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self.ui.progress(_('scanning'), None)
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return parents
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def mergesplicemap(self, parents, splicemap):
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"""A splicemap redefines child/parent relationships. Check the
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map contains valid revision identifiers and merge the new
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links in the source graph.
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"""
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for c in sorted(splicemap):
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if c not in parents:
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if not self.dest.hascommitforsplicemap(self.map.get(c, c)):
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# Could be in source but not converted during this run
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self.ui.warn(_('splice map revision %s is not being '
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'converted, ignoring\n') % c)
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continue
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pc = []
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for p in splicemap[c]:
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# We do not have to wait for nodes already in dest.
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if self.dest.hascommitforsplicemap(self.map.get(p, p)):
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continue
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# Parent is not in dest and not being converted, not good
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if p not in parents:
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raise error.Abort(_('unknown splice map parent: %s') % p)
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pc.append(p)
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parents[c] = pc
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def toposort(self, parents, sortmode):
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'''Return an ordering such that every uncommitted changeset is
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preceded by all its uncommitted ancestors.'''
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def mapchildren(parents):
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"""Return a (children, roots) tuple where 'children' maps parent
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revision identifiers to children ones, and 'roots' is the list of
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revisions without parents. 'parents' must be a mapping of revision
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identifier to its parents ones.
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"""
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visit = collections.deque(sorted(parents))
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seen = set()
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children = {}
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roots = []
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while visit:
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n = visit.popleft()
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if n in seen:
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continue
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seen.add(n)
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# Ensure that nodes without parents are present in the
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# 'children' mapping.
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children.setdefault(n, [])
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hasparent = False
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for p in parents[n]:
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if p not in self.map:
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visit.append(p)
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hasparent = True
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children.setdefault(p, []).append(n)
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if not hasparent:
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roots.append(n)
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return children, roots
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# Sort functions are supposed to take a list of revisions which
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# can be converted immediately and pick one
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def makebranchsorter():
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"""If the previously converted revision has a child in the
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eligible revisions list, pick it. Return the list head
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otherwise. Branch sort attempts to minimize branch
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switching, which is harmful for Mercurial backend
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compression.
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"""
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prev = [None]
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def picknext(nodes):
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next = nodes[0]
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for n in nodes:
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if prev[0] in parents[n]:
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next = n
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break
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prev[0] = next
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return next
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return picknext
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def makesourcesorter():
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"""Source specific sort."""
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keyfn = lambda n: self.commitcache[n].sortkey
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def picknext(nodes):
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return sorted(nodes, key=keyfn)[0]
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return picknext
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def makeclosesorter():
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"""Close order sort."""
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keyfn = lambda n: ('close' not in self.commitcache[n].extra,
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self.commitcache[n].sortkey)
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def picknext(nodes):
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return sorted(nodes, key=keyfn)[0]
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return picknext
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def makedatesorter():
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"""Sort revisions by date."""
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dates = {}
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def getdate(n):
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if n not in dates:
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dates[n] = util.parsedate(self.commitcache[n].date)
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return dates[n]
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def picknext(nodes):
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return min([(getdate(n), n) for n in nodes])[1]
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return picknext
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if sortmode == 'branchsort':
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picknext = makebranchsorter()
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elif sortmode == 'datesort':
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picknext = makedatesorter()
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elif sortmode == 'sourcesort':
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picknext = makesourcesorter()
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elif sortmode == 'closesort':
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picknext = makeclosesorter()
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else:
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raise error.Abort(_('unknown sort mode: %s') % sortmode)
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children, actives = mapchildren(parents)
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s = []
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pendings = {}
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while actives:
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n = picknext(actives)
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actives.remove(n)
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s.append(n)
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# Update dependents list
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for c in children.get(n, []):
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if c not in pendings:
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pendings[c] = [p for p in parents[c] if p not in self.map]
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try:
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pendings[c].remove(n)
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except ValueError:
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raise error.Abort(_('cycle detected between %s and %s')
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% (recode(c), recode(n)))
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if not pendings[c]:
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# Parents are converted, node is eligible
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actives.insert(0, c)
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pendings[c] = None
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if len(s) != len(parents):
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raise error.Abort(_("not all revisions were sorted"))
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return s
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def writeauthormap(self):
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authorfile = self.authorfile
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if authorfile:
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self.ui.status(_('writing author map file %s\n') % authorfile)
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ofile = open(authorfile, 'wb+')
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for author in self.authors:
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ofile.write(util.tonativeeol("%s=%s\n"
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% (author, self.authors[author])))
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ofile.close()
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def readauthormap(self, authorfile):
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afile = open(authorfile, 'rb')
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for line in afile:
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line = line.strip()
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if not line or line.startswith('#'):
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continue
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try:
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srcauthor, dstauthor = line.split('=', 1)
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except ValueError:
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msg = _('ignoring bad line in author map file %s: %s\n')
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self.ui.warn(msg % (authorfile, line.rstrip()))
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continue
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srcauthor = srcauthor.strip()
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dstauthor = dstauthor.strip()
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if self.authors.get(srcauthor) in (None, dstauthor):
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msg = _('mapping author %s to %s\n')
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self.ui.debug(msg % (srcauthor, dstauthor))
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self.authors[srcauthor] = dstauthor
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continue
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m = _('overriding mapping for author %s, was %s, will be %s\n')
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self.ui.status(m % (srcauthor, self.authors[srcauthor], dstauthor))
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afile.close()
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def cachecommit(self, rev):
|
|
|
commit = self.source.getcommit(rev)
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|
commit.author = self.authors.get(commit.author, commit.author)
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|
commit.branch = mapbranch(commit.branch, self.branchmap)
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self.commitcache[rev] = commit
|
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|
return commit
|
|
|
|
|
|
def copy(self, rev):
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|
commit = self.commitcache[rev]
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|
full = self.opts.get('full')
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|
changes = self.source.getchanges(rev, full)
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|
if isinstance(changes, bytes):
|
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|
if changes == SKIPREV:
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|
dest = SKIPREV
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else:
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|
dest = self.map[changes]
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|
self.map[rev] = dest
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return
|
|
|
files, copies, cleanp2 = changes
|
|
|
pbranches = []
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|
|
if commit.parents:
|
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|
for prev in commit.parents:
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if prev not in self.commitcache:
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|
self.cachecommit(prev)
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|
pbranches.append((self.map[prev],
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self.commitcache[prev].branch))
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|
self.dest.setbranch(commit.branch, pbranches)
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|
try:
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|
parents = self.splicemap[rev]
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self.ui.status(_('spliced in %s as parents of %s\n') %
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(_(' and ').join(parents), rev))
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|
parents = [self.map.get(p, p) for p in parents]
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|
except KeyError:
|
|
|
parents = [b[0] for b in pbranches]
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|
|
parents.extend(self.map[x]
|
|
|
for x in commit.optparents
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|
|
if x in self.map)
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|
|
if len(pbranches) != 2:
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|
|
cleanp2 = set()
|
|
|
if len(parents) < 3:
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|
|
source = progresssource(self.ui, self.source, len(files))
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|
else:
|
|
|
# For an octopus merge, we end up traversing the list of
|
|
|
# changed files N-1 times. This tweak to the number of
|
|
|
# files makes it so the progress bar doesn't overflow
|
|
|
# itself.
|
|
|
source = progresssource(self.ui, self.source,
|
|
|
len(files) * (len(parents) - 1))
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|
|
newnode = self.dest.putcommit(files, copies, parents, commit,
|
|
|
source, self.map, full, cleanp2)
|
|
|
source.close()
|
|
|
self.source.converted(rev, newnode)
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|
self.map[rev] = newnode
|
|
|
|
|
|
def convert(self, sortmode):
|
|
|
try:
|
|
|
self.source.before()
|
|
|
self.dest.before()
|
|
|
self.source.setrevmap(self.map)
|
|
|
self.ui.status(_("scanning source...\n"))
|
|
|
heads = self.source.getheads()
|
|
|
parents = self.walktree(heads)
|
|
|
self.mergesplicemap(parents, self.splicemap)
|
|
|
self.ui.status(_("sorting...\n"))
|
|
|
t = self.toposort(parents, sortmode)
|
|
|
num = len(t)
|
|
|
c = None
|
|
|
|
|
|
self.ui.status(_("converting...\n"))
|
|
|
for i, c in enumerate(t):
|
|
|
num -= 1
|
|
|
desc = self.commitcache[c].desc
|
|
|
if "\n" in desc:
|
|
|
desc = desc.splitlines()[0]
|
|
|
# convert log message to local encoding without using
|
|
|
# tolocal() because the encoding.encoding convert()
|
|
|
# uses is 'utf-8'
|
|
|
self.ui.status("%d %s\n" % (num, recode(desc)))
|
|
|
self.ui.note(_("source: %s\n") % recode(c))
|
|
|
self.ui.progress(_('converting'), i, unit=_('revisions'),
|
|
|
total=len(t))
|
|
|
self.copy(c)
|
|
|
self.ui.progress(_('converting'), None)
|
|
|
|
|
|
if not self.ui.configbool('convert', 'skiptags'):
|
|
|
tags = self.source.gettags()
|
|
|
ctags = {}
|
|
|
for k in tags:
|
|
|
v = tags[k]
|
|
|
if self.map.get(v, SKIPREV) != SKIPREV:
|
|
|
ctags[k] = self.map[v]
|
|
|
|
|
|
if c and ctags:
|
|
|
nrev, tagsparent = self.dest.puttags(ctags)
|
|
|
if nrev and tagsparent:
|
|
|
# write another hash correspondence to override the
|
|
|
# previous one so we don't end up with extra tag heads
|
|
|
tagsparents = [e for e in self.map.iteritems()
|
|
|
if e[1] == tagsparent]
|
|
|
if tagsparents:
|
|
|
self.map[tagsparents[0][0]] = nrev
|
|
|
|
|
|
bookmarks = self.source.getbookmarks()
|
|
|
cbookmarks = {}
|
|
|
for k in bookmarks:
|
|
|
v = bookmarks[k]
|
|
|
if self.map.get(v, SKIPREV) != SKIPREV:
|
|
|
cbookmarks[k] = self.map[v]
|
|
|
|
|
|
if c and cbookmarks:
|
|
|
self.dest.putbookmarks(cbookmarks)
|
|
|
|
|
|
self.writeauthormap()
|
|
|
finally:
|
|
|
self.cleanup()
|
|
|
|
|
|
def cleanup(self):
|
|
|
try:
|
|
|
self.dest.after()
|
|
|
finally:
|
|
|
self.source.after()
|
|
|
self.map.close()
|
|
|
|
|
|
def convert(ui, src, dest=None, revmapfile=None, **opts):
|
|
|
global orig_encoding
|
|
|
orig_encoding = encoding.encoding
|
|
|
encoding.encoding = 'UTF-8'
|
|
|
|
|
|
# support --authors as an alias for --authormap
|
|
|
if not opts.get('authormap'):
|
|
|
opts['authormap'] = opts.get('authors')
|
|
|
|
|
|
if not dest:
|
|
|
dest = hg.defaultdest(src) + "-hg"
|
|
|
ui.status(_("assuming destination %s\n") % dest)
|
|
|
|
|
|
destc = convertsink(ui, dest, opts.get('dest_type'))
|
|
|
destc = scmutil.wrapconvertsink(destc)
|
|
|
|
|
|
try:
|
|
|
srcc, defaultsort = convertsource(ui, src, opts.get('source_type'),
|
|
|
opts.get('rev'))
|
|
|
except Exception:
|
|
|
for path in destc.created:
|
|
|
shutil.rmtree(path, True)
|
|
|
raise
|
|
|
|
|
|
sortmodes = ('branchsort', 'datesort', 'sourcesort', 'closesort')
|
|
|
sortmode = [m for m in sortmodes if opts.get(m)]
|
|
|
if len(sortmode) > 1:
|
|
|
raise error.Abort(_('more than one sort mode specified'))
|
|
|
if sortmode:
|
|
|
sortmode = sortmode[0]
|
|
|
else:
|
|
|
sortmode = defaultsort
|
|
|
|
|
|
if sortmode == 'sourcesort' and not srcc.hasnativeorder():
|
|
|
raise error.Abort(_('--sourcesort is not supported by this data source')
|
|
|
)
|
|
|
if sortmode == 'closesort' and not srcc.hasnativeclose():
|
|
|
raise error.Abort(_('--closesort is not supported by this data source'))
|
|
|
|
|
|
fmap = opts.get('filemap')
|
|
|
if fmap:
|
|
|
srcc = filemap.filemap_source(ui, srcc, fmap)
|
|
|
destc.setfilemapmode(True)
|
|
|
|
|
|
if not revmapfile:
|
|
|
revmapfile = destc.revmapfile()
|
|
|
|
|
|
c = converter(ui, srcc, destc, revmapfile, opts)
|
|
|
c.convert(sortmode)
|
|
|
|
