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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
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# of the GNU General Public License, incorporated herein by reference.
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from common import NoRepo, SKIPREV, converter_source, converter_sink
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from cvs import convert_cvs
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from darcs import darcs_source
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from git import convert_git
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from hg import mercurial_source, mercurial_sink
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from subversion import svn_source, debugsvnlog
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import filemap
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import os, shutil
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from mercurial import hg, util
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from mercurial.i18n import _
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source_converters = [
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('cvs', convert_cvs),
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('git', convert_git),
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('svn', svn_source),
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('hg', mercurial_source),
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('darcs', darcs_source),
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]
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sink_converters = [
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('hg', mercurial_sink),
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]
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def convertsource(ui, path, type, rev):
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exceptions = []
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for name, source 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, path, rev)
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except NoRepo, 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 util.Abort('%s: unknown repository type' % path)
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def convertsink(ui, path, 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, path)
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except NoRepo, inst:
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ui.note(_("convert: %s\n") % inst)
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raise util.Abort('%s: unknown repository type' % path)
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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.revmapfile = revmapfile
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self.revmapfilefd = None
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self.authors = {}
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self.authorfile = None
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self.maporder = []
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self.map = {}
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try:
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origrevmapfile = open(self.revmapfile, 'r')
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for l in origrevmapfile:
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sv, dv = l[:-1].split()
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if sv not in self.map:
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self.maporder.append(sv)
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self.map[sv] = dv
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origrevmapfile.close()
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except IOError:
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pass
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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('authors'):
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self.readauthormap(opts.get('authors'))
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self.authorfile = self.dest.authorfile()
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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 = {}
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parents = {}
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while visit:
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n = visit.pop(0)
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if n in known or n in self.map: continue
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known[n] = 1
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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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return parents
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def toposort(self, parents):
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'''Return an ordering such that every uncommitted changeset is
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preceeded by all its uncommitted ancestors.'''
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visit = parents.keys()
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seen = {}
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children = {}
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while visit:
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n = visit.pop(0)
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if n in seen: continue
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seen[n] = 1
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# Ensure that nodes without parents are present in the 'children'
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# mapping.
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children.setdefault(n, [])
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for p in parents[n]:
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if not p in self.map:
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visit.append(p)
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children.setdefault(p, []).append(n)
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s = []
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removed = {}
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visit = children.keys()
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while visit:
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n = visit.pop(0)
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if n in removed: continue
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dep = 0
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if n in parents:
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for p in parents[n]:
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if p in self.map: continue
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if p not in removed:
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# we're still dependent
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visit.append(n)
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dep = 1
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break
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if not dep:
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# all n's parents are in the list
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removed[n] = 1
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if n not in self.map:
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s.append(n)
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if n in children:
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for c in children[n]:
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visit.insert(0, c)
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if self.opts.get('datesort'):
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depth = {}
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for n in s:
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depth[n] = 0
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pl = [p for p in self.commitcache[n].parents
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if p not in self.map]
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if pl:
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depth[n] = max([depth[p] for p in pl]) + 1
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s = [(depth[n], self.commitcache[n].date, n) for n in s]
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s.sort()
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s = [e[2] for e in s]
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return s
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def mapentry(self, src, dst):
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if self.revmapfilefd is None:
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try:
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self.revmapfilefd = open(self.revmapfile, "a")
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except IOError, (errno, strerror):
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raise util.Abort("Could not open map file %s: %s, %s\n" % (self.revmapfile, errno, strerror))
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self.map[src] = dst
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self.revmapfilefd.write("%s %s\n" % (src, dst))
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self.revmapfilefd.flush()
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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, 'w+')
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for author in self.authors:
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ofile.write("%s=%s\n" % (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, 'r')
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for line in afile:
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try:
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srcauthor = line.split('=')[0].strip()
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dstauthor = line.split('=')[1].strip()
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if srcauthor in self.authors and dstauthor != self.authors[srcauthor]:
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self.ui.status(
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'Overriding mapping for author %s, was %s, will be %s\n'
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% (srcauthor, self.authors[srcauthor], dstauthor))
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else:
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self.ui.debug('Mapping author %s to %s\n'
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% (srcauthor, dstauthor))
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self.authors[srcauthor] = dstauthor
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except IndexError:
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self.ui.warn(
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'Ignoring bad line in author file map %s: %s\n'
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% (authorfile, line))
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afile.close()
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def cachecommit(self, rev):
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commit = self.source.getcommit(rev)
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commit.author = self.authors.get(commit.author, commit.author)
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self.commitcache[rev] = commit
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return commit
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def copy(self, rev):
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commit = self.commitcache[rev]
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do_copies = hasattr(self.dest, 'copyfile')
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filenames = []
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changes = self.source.getchanges(rev)
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if isinstance(changes, basestring):
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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.mapentry(rev, dest)
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return
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files, copies = changes
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parents = [self.map[r] for r in commit.parents]
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if commit.parents:
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prev = commit.parents[0]
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if prev not in self.commitcache:
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self.cachecommit(prev)
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pbranch = self.commitcache[prev].branch
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else:
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pbranch = None
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self.dest.setbranch(commit.branch, pbranch, parents)
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for f, v in files:
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filenames.append(f)
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try:
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data = self.source.getfile(f, v)
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except IOError, inst:
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self.dest.delfile(f)
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else:
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e = self.source.getmode(f, v)
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self.dest.putfile(f, e, data)
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if do_copies:
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if f in copies:
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copyf = copies[f]
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# Merely marks that a copy happened.
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self.dest.copyfile(copyf, f)
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newnode = self.dest.putcommit(filenames, parents, commit)
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self.mapentry(rev, newnode)
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def convert(self):
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try:
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self.source.before()
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self.dest.before()
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self.source.setrevmap(self.map, self.maporder)
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self.ui.status("scanning source...\n")
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heads = self.source.getheads()
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parents = self.walktree(heads)
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self.ui.status("sorting...\n")
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t = self.toposort(parents)
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num = len(t)
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c = None
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self.ui.status("converting...\n")
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for c in t:
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num -= 1
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desc = self.commitcache[c].desc
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if "\n" in desc:
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desc = desc.splitlines()[0]
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self.ui.status("%d %s\n" % (num, desc))
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self.copy(c)
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tags = self.source.gettags()
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ctags = {}
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for k in tags:
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v = tags[k]
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if self.map.get(v, SKIPREV) != SKIPREV:
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ctags[k] = self.map[v]
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if c and ctags:
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nrev = self.dest.puttags(ctags)
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# write another hash correspondence to override the previous
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# one so we don't end up with extra tag heads
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if nrev:
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self.mapentry(c, nrev)
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self.writeauthormap()
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finally:
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self.cleanup()
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def cleanup(self):
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try:
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self.dest.after()
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finally:
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self.source.after()
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if self.revmapfilefd:
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self.revmapfilefd.close()
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def convert(ui, src, dest=None, revmapfile=None, **opts):
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util._encoding = 'UTF-8'
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if not dest:
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dest = hg.defaultdest(src) + "-hg"
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ui.status("assuming destination %s\n" % dest)
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destc = convertsink(ui, dest, opts.get('dest_type'))
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try:
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srcc = convertsource(ui, src, opts.get('source_type'),
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opts.get('rev'))
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except Exception:
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for path in destc.created:
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shutil.rmtree(path, True)
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raise
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fmap = opts.get('filemap')
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if fmap:
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srcc = filemap.filemap_source(ui, srcc, fmap)
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destc.setfilemapmode(True)
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if not revmapfile:
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try:
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revmapfile = destc.revmapfile()
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except:
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revmapfile = os.path.join(destc, "map")
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c = converter(ui, srcc, destc, revmapfile, opts)
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c.convert()
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