--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hgext/convert/convcmd.py Sun Dec 09 15:25:36 2007 +0100
@@ -0,0 +1,330 @@
+# convcmd - convert extension commands definition
+#
+# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
+#
+# This software may be used and distributed according to the terms
+# of the GNU General Public License, incorporated herein by reference.
+
+from common import NoRepo, SKIPREV, converter_source, converter_sink
+from cvs import convert_cvs
+from darcs import darcs_source
+from git import convert_git
+from hg import mercurial_source, mercurial_sink
+from subversion import svn_source, debugsvnlog
+import filemap
+
+import os, shutil
+from mercurial import hg, util
+from mercurial.i18n import _
+
+source_converters = [
+ ('cvs', convert_cvs),
+ ('git', convert_git),
+ ('svn', svn_source),
+ ('hg', mercurial_source),
+ ('darcs', darcs_source),
+ ]
+
+sink_converters = [
+ ('hg', mercurial_sink),
+ ]
+
+def convertsource(ui, path, type, rev):
+ exceptions = []
+ for name, source in source_converters:
+ try:
+ if not type or name == type:
+ return source(ui, path, rev)
+ except NoRepo, inst:
+ exceptions.append(inst)
+ if not ui.quiet:
+ for inst in exceptions:
+ ui.write(_("%s\n") % inst)
+ raise util.Abort('%s: unknown repository type' % path)
+
+def convertsink(ui, path, type):
+ for name, sink in sink_converters:
+ try:
+ if not type or name == type:
+ return sink(ui, path)
+ except NoRepo, inst:
+ ui.note(_("convert: %s\n") % inst)
+ raise util.Abort('%s: unknown repository type' % path)
+
+class converter(object):
+ def __init__(self, ui, source, dest, revmapfile, opts):
+
+ self.source = source
+ self.dest = dest
+ self.ui = ui
+ self.opts = opts
+ self.commitcache = {}
+ self.revmapfile = revmapfile
+ self.revmapfilefd = None
+ self.authors = {}
+ self.authorfile = None
+
+ self.maporder = []
+ self.map = {}
+ try:
+ origrevmapfile = open(self.revmapfile, 'r')
+ for l in origrevmapfile:
+ sv, dv = l[:-1].split()
+ if sv not in self.map:
+ self.maporder.append(sv)
+ self.map[sv] = dv
+ origrevmapfile.close()
+ except IOError:
+ pass
+
+ # Read first the dst author map if any
+ authorfile = self.dest.authorfile()
+ if authorfile and os.path.exists(authorfile):
+ self.readauthormap(authorfile)
+ # Extend/Override with new author map if necessary
+ if opts.get('authors'):
+ self.readauthormap(opts.get('authors'))
+ self.authorfile = self.dest.authorfile()
+
+ def walktree(self, heads):
+ '''Return a mapping that identifies the uncommitted parents of every
+ uncommitted changeset.'''
+ visit = heads
+ known = {}
+ parents = {}
+ while visit:
+ n = visit.pop(0)
+ if n in known or n in self.map: continue
+ known[n] = 1
+ commit = self.cachecommit(n)
+ parents[n] = []
+ for p in commit.parents:
+ parents[n].append(p)
+ visit.append(p)
+
+ return parents
+
+ def toposort(self, parents):
+ '''Return an ordering such that every uncommitted changeset is
+ preceeded by all its uncommitted ancestors.'''
+ visit = parents.keys()
+ seen = {}
+ children = {}
+
+ while visit:
+ n = visit.pop(0)
+ if n in seen: continue
+ seen[n] = 1
+ # Ensure that nodes without parents are present in the 'children'
+ # mapping.
+ children.setdefault(n, [])
+ for p in parents[n]:
+ if not p in self.map:
+ visit.append(p)
+ children.setdefault(p, []).append(n)
+
+ s = []
+ removed = {}
+ visit = children.keys()
+ while visit:
+ n = visit.pop(0)
+ if n in removed: continue
+ dep = 0
+ if n in parents:
+ for p in parents[n]:
+ if p in self.map: continue
+ if p not in removed:
+ # we're still dependent
+ visit.append(n)
+ dep = 1
+ break
+
+ if not dep:
+ # all n's parents are in the list
+ removed[n] = 1
+ if n not in self.map:
+ s.append(n)
+ if n in children:
+ for c in children[n]:
+ visit.insert(0, c)
+
+ if self.opts.get('datesort'):
+ depth = {}
+ for n in s:
+ depth[n] = 0
+ pl = [p for p in self.commitcache[n].parents
+ if p not in self.map]
+ if pl:
+ depth[n] = max([depth[p] for p in pl]) + 1
+
+ s = [(depth[n], self.commitcache[n].date, n) for n in s]
+ s.sort()
+ s = [e[2] for e in s]
+
+ return s
+
+ def mapentry(self, src, dst):
+ if self.revmapfilefd is None:
+ try:
+ self.revmapfilefd = open(self.revmapfile, "a")
+ except IOError, (errno, strerror):
+ raise util.Abort("Could not open map file %s: %s, %s\n" % (self.revmapfile, errno, strerror))
+ self.map[src] = dst
+ self.revmapfilefd.write("%s %s\n" % (src, dst))
+ self.revmapfilefd.flush()
+
+ def writeauthormap(self):
+ authorfile = self.authorfile
+ if authorfile:
+ self.ui.status('Writing author map file %s\n' % authorfile)
+ ofile = open(authorfile, 'w+')
+ for author in self.authors:
+ ofile.write("%s=%s\n" % (author, self.authors[author]))
+ ofile.close()
+
+ def readauthormap(self, authorfile):
+ afile = open(authorfile, 'r')
+ for line in afile:
+ try:
+ srcauthor = line.split('=')[0].strip()
+ dstauthor = line.split('=')[1].strip()
+ if srcauthor in self.authors and dstauthor != self.authors[srcauthor]:
+ self.ui.status(
+ 'Overriding mapping for author %s, was %s, will be %s\n'
+ % (srcauthor, self.authors[srcauthor], dstauthor))
+ else:
+ self.ui.debug('Mapping author %s to %s\n'
+ % (srcauthor, dstauthor))
+ self.authors[srcauthor] = dstauthor
+ except IndexError:
+ self.ui.warn(
+ 'Ignoring bad line in author file map %s: %s\n'
+ % (authorfile, line))
+ afile.close()
+
+ def cachecommit(self, rev):
+ commit = self.source.getcommit(rev)
+ commit.author = self.authors.get(commit.author, commit.author)
+ self.commitcache[rev] = commit
+ return commit
+
+ def copy(self, rev):
+ commit = self.commitcache[rev]
+ do_copies = hasattr(self.dest, 'copyfile')
+ filenames = []
+
+ changes = self.source.getchanges(rev)
+ if isinstance(changes, basestring):
+ if changes == SKIPREV:
+ dest = SKIPREV
+ else:
+ dest = self.map[changes]
+ self.mapentry(rev, dest)
+ return
+ files, copies = changes
+ parents = [self.map[r] for r in commit.parents]
+ if commit.parents:
+ prev = commit.parents[0]
+ if prev not in self.commitcache:
+ self.cachecommit(prev)
+ pbranch = self.commitcache[prev].branch
+ else:
+ pbranch = None
+ self.dest.setbranch(commit.branch, pbranch, parents)
+ for f, v in files:
+ filenames.append(f)
+ try:
+ data = self.source.getfile(f, v)
+ except IOError, inst:
+ self.dest.delfile(f)
+ else:
+ e = self.source.getmode(f, v)
+ self.dest.putfile(f, e, data)
+ if do_copies:
+ if f in copies:
+ copyf = copies[f]
+ # Merely marks that a copy happened.
+ self.dest.copyfile(copyf, f)
+
+ newnode = self.dest.putcommit(filenames, parents, commit)
+ self.mapentry(rev, newnode)
+
+ def convert(self):
+ try:
+ self.source.before()
+ self.dest.before()
+ self.source.setrevmap(self.map, self.maporder)
+ self.ui.status("scanning source...\n")
+ heads = self.source.getheads()
+ parents = self.walktree(heads)
+ self.ui.status("sorting...\n")
+ t = self.toposort(parents)
+ num = len(t)
+ c = None
+
+ self.ui.status("converting...\n")
+ for c in t:
+ num -= 1
+ desc = self.commitcache[c].desc
+ if "\n" in desc:
+ desc = desc.splitlines()[0]
+ self.ui.status("%d %s\n" % (num, desc))
+ self.copy(c)
+
+ 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 = self.dest.puttags(ctags)
+ # write another hash correspondence to override the previous
+ # one so we don't end up with extra tag heads
+ if nrev:
+ self.mapentry(c, nrev)
+
+ self.writeauthormap()
+ finally:
+ self.cleanup()
+
+ def cleanup(self):
+ try:
+ self.dest.after()
+ finally:
+ self.source.after()
+ if self.revmapfilefd:
+ self.revmapfilefd.close()
+
+def convert(ui, src, dest=None, revmapfile=None, **opts):
+ util._encoding = 'UTF-8'
+
+ if not dest:
+ dest = hg.defaultdest(src) + "-hg"
+ ui.status("assuming destination %s\n" % dest)
+
+ destc = convertsink(ui, dest, opts.get('dest_type'))
+
+ try:
+ srcc = convertsource(ui, src, opts.get('source_type'),
+ opts.get('rev'))
+ except Exception:
+ for path in destc.created:
+ shutil.rmtree(path, True)
+ raise
+
+ fmap = opts.get('filemap')
+ if fmap:
+ srcc = filemap.filemap_source(ui, srcc, fmap)
+ destc.setfilemapmode(True)
+
+ if not revmapfile:
+ try:
+ revmapfile = destc.revmapfile()
+ except:
+ revmapfile = os.path.join(destc, "map")
+
+ c = converter(ui, srcc, destc, revmapfile, opts)
+ c.convert()
+