# 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, mapfile
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 debugsvnlog, svn_source, svn_sink
from gnuarch import gnuarch_source
import filemap
import os, shutil
from mercurial import hg, util
from mercurial.i18n import _
orig_encoding = 'ascii'
def recode(s):
if isinstance(s, unicode):
return s.encode(orig_encoding, 'replace')
else:
return s.decode('utf-8').encode(orig_encoding, 'replace')
source_converters = [
('cvs', convert_cvs),
('git', convert_git),
('svn', svn_source),
('hg', mercurial_source),
('darcs', darcs_source),
('gnuarch', gnuarch_source),
]
sink_converters = [
('hg', mercurial_sink),
('svn', svn_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.authors = {}
self.authorfile = None
self.map = mapfile(ui, revmapfile)
# 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()
self.splicemap = mapfile(ui, opts.get('splicemap'))
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 = {}
actives = []
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, [])
hasparent = False
for p in parents[n]:
if not p in self.map:
visit.append(p)
hasparent = True
children.setdefault(p, []).append(n)
if not hasparent:
actives.append(n)
del seen
del visit
if self.opts.get('datesort'):
dates = {}
def getdate(n):
if n not in dates:
dates[n] = util.parsedate(self.commitcache[n].date)
return dates[n]
def picknext(nodes):
return min([(getdate(n), n) for n in nodes])[1]
else:
prev = [None]
def picknext(nodes):
# Return the first eligible child of the previously converted
# revision, or any of them.
next = nodes[0]
for n in nodes:
if prev[0] in parents[n]:
next = n
break
prev[0] = next
return next
s = []
pendings = {}
while actives:
n = picknext(actives)
actives.remove(n)
s.append(n)
# Update dependents list
for c in children.get(n, []):
if c not in pendings:
pendings[c] = [p for p in parents[c] if p not in self.map]
try:
pendings[c].remove(n)
except ValueError:
raise util.Abort(_('cycle detected between %s and %s')
% (recode(c), recode(n)))
if not pendings[c]:
# Parents are converted, node is eligible
actives.insert(0, c)
pendings[c] = None
if len(s) != len(parents):
raise util.Abort(_("not all revisions were sorted"))
return s
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.map[rev] = dest
return
files, copies = changes
pbranches = []
if commit.parents:
for prev in commit.parents:
if prev not in self.commitcache:
self.cachecommit(prev)
pbranches.append((self.map[prev],
self.commitcache[prev].branch))
self.dest.setbranch(commit.branch, pbranches)
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)
try:
parents = self.splicemap[rev].replace(',', ' ').split()
self.ui.status('spliced in %s as parents of %s\n' %
(parents, rev))
parents = [self.map.get(p, p) for p in parents]
except KeyError:
parents = [b[0] for b in pbranches]
newnode = self.dest.putcommit(filenames, parents, commit)
self.source.converted(rev, newnode)
self.map[rev] = newnode
def convert(self):
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.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]
# convert log message to local encoding without using
# tolocal() because util._encoding conver() use it as
# 'utf-8'
self.ui.status("%d %s\n" % (num, recode(desc)))
self.ui.note(_("source: %s\n" % recode(c)))
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.map[c] = nrev
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 = util._encoding
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()