# Just copy to your ~/bin, or anywhere in your $PATH.
# Then you can clone with:
# git clone hg::/path/to/mercurial/repo/
+#
+# For remote repositories a local clone is stored in
+# "$GIT_DIR/hg/origin/clone/.hg/".
-from mercurial import hg, ui, bookmarks, context, util, encoding
+from mercurial import hg, ui, bookmarks, context, encoding, node, error, extensions
import re
import sys
import shutil
import subprocess
import urllib
+import atexit
+import urlparse, hashlib
#
# If you want to switch to hg-git compatibility mode:
# git config --global remote-hg.hg-git-compat true
#
+# If you are not in hg-git-compat mode and want to disable the tracking of
+# named branches:
+# git config --global remote-hg.track-branches false
+#
+# If you don't want to force pushes (and thus risk creating new remote heads):
+# git config --global remote-hg.force-push false
+#
+# If you want the equivalent of hg's clone/pull--insecure option:
+# git config remote-hg.insecure true
+#
# git:
# Sensible defaults for git.
# hg bookmarks are exported as git branches, hg branches are prefixed
NAME_RE = re.compile('^([^<>]+)')
AUTHOR_RE = re.compile('^([^<>]+?)? ?<([^<>]*)>$')
+EMAIL_RE = re.compile('^([^<>]+[^ \\\t<>])?\\b(?:[ \\t<>]*?)\\b([^ \\t<>]+@[^ \\t<>]+)')
AUTHOR_HG_RE = re.compile('^(.*?) ?<(.*?)(?:>(.+)?)?$')
RAW_AUTHOR_RE = re.compile('^(\w+) (?:(.+)? )?<(.*)> (\d+) ([+-]\d+)')
m = { '100755': 'x', '120000': 'l' }
return m.get(mode, '')
+def hghex(node):
+ return hg.node.hex(node)
+
+def hgref(ref):
+ return ref.replace('___', ' ')
+
+def gitref(ref):
+ return ref.replace(' ', '___')
+
def get_config(config):
cmd = ['git', 'config', '--get', config]
process = subprocess.Popen(cmd, stdout=subprocess.PIPE)
def to_rev(self, mark):
return self.rev_marks[mark]
+ def next_mark(self):
+ self.last_mark += 1
+ return self.last_mark
+
def get_mark(self, rev):
self.last_mark += 1
self.marks[str(rev)] = self.last_mark
self.last_mark = mark
def is_marked(self, rev):
- return self.marks.has_key(str(rev))
+ return str(rev) in self.marks
def get_tip(self, branch):
return self.tips.get(branch, 0)
tz = ((tz / 100) * 3600) + ((tz % 100) * 60)
return (user, int(date), -tz)
-def export_file(fc):
- d = fc.data()
- print "M %s inline %s" % (gitmode(fc.flags()), fc.path())
- print "data %d" % len(d)
- print d
+def fix_file_path(path):
+ if not os.path.isabs(path):
+ return path
+ return os.path.relpath(path, '/')
+
+def export_files(files):
+ global marks, filenodes
+
+ final = []
+ for f in files:
+ fid = node.hex(f.filenode())
+
+ if fid in filenodes:
+ mark = filenodes[fid]
+ else:
+ mark = marks.next_mark()
+ filenodes[fid] = mark
+ d = f.data()
+
+ print "blob"
+ print "mark :%u" % mark
+ print "data %d" % len(d)
+ print d
+
+ path = fix_file_path(f.path())
+ final.append((gitmode(f.flags()), mark, path))
+
+ return final
def get_filechanges(repo, ctx, parent):
modified = set()
added = set()
removed = set()
- cur = ctx.manifest()
+ # load earliest manifest first for caching reasons
prev = repo[parent].manifest().copy()
+ cur = ctx.manifest()
for fn in cur:
if fn in prev:
name = m.group(1)
mail = m.group(2).strip()
else:
- m = NAME_RE.match(user)
+ m = EMAIL_RE.match(user)
if m:
- name = m.group(1).strip()
+ name = m.group(1)
+ mail = m.group(2)
+ else:
+ m = NAME_RE.match(user)
+ if m:
+ name = m.group(1).strip()
return (name, mail)
def fixup_user_hg(user):
myui = ui.ui()
myui.setconfig('ui', 'interactive', 'off')
+ myui.fout = sys.stderr
+
+ try:
+ if get_config('remote-hg.insecure') == 'true\n':
+ myui.setconfig('web', 'cacerts', '')
+ except subprocess.CalledProcessError:
+ pass
+
+ try:
+ mod = extensions.load(myui, 'hgext.schemes', None)
+ mod.extsetup(myui)
+ except ImportError:
+ pass
if hg.islocal(url):
repo = hg.repository(myui, url)
else:
local_path = os.path.join(dirname, 'clone')
if not os.path.exists(local_path):
- peer, dstpeer = hg.clone(myui, {}, url, local_path, update=False, pull=True)
+ try:
+ peer, dstpeer = hg.clone(myui, {}, url, local_path, update=True, pull=True)
+ except:
+ die('Repository error')
repo = dstpeer.local()
else:
repo = hg.repository(myui, local_path)
- peer = hg.peer(myui, {}, url)
+ try:
+ peer = hg.peer(myui, {}, url)
+ except:
+ die('Repository error')
repo.pull(peer, heads=None, force=True)
return repo
ename = '%s/%s' % (kind, name)
tip = marks.get_tip(ename)
- # mercurial takes too much time checking this
- if tip and tip == head.rev():
- # nothing to do
- return
revs = xrange(tip, head.rev() + 1)
count = 0
if len(parents) == 0 and rev:
print 'reset %s/%s' % (prefix, ename)
+ modified_final = export_files(c.filectx(f) for f in modified)
+
print "commit %s/%s" % (prefix, ename)
print "mark :%d" % (marks.get_mark(rev))
print "author %s" % (author)
if len(parents) > 1:
print "merge :%s" % (rev_to_mark(parents[1]))
- for f in modified:
- export_file(c.filectx(f))
+ for f in modified_final:
+ print "M %s :%u %s" % f
for f in removed:
- print "D %s" % (f)
+ print "D %s" % (fix_file_path(f))
print
count += 1
marks.set_tip(ename, rev)
def export_tag(repo, tag):
- export_ref(repo, tag, 'tags', repo[tag])
+ export_ref(repo, tag, 'tags', repo[hgref(tag)])
def export_bookmark(repo, bmark):
- head = bmarks[bmark]
+ head = bmarks[hgref(bmark)]
export_ref(repo, bmark, 'bookmarks', head)
def export_branch(repo, branch):
print
+def branch_tip(repo, branch):
+ # older versions of mercurial don't have this
+ if hasattr(repo, 'branchtip'):
+ return repo.branchtip(branch)
+ else:
+ return repo.branchtags()[branch]
+
def get_branch_tip(repo, branch):
global branches
- heads = branches.get(branch, None)
+ heads = branches.get(hgref(branch), None)
if not heads:
return None
# verify there's only one head
if (len(heads) > 1):
warn("Branch '%s' has more than one head, consider merging" % branch)
- # older versions of mercurial don't have this
- if hasattr(repo, "branchtip"):
- return repo.branchtip(branch)
+ return branch_tip(repo, hgref(branch))
return heads[0]
head = 'master'
bmarks[head] = node
+ head = gitref(head)
print "@refs/heads/%s HEAD" % head
g_head = (head, node)
branches[branch] = heads
for branch in branches:
- print "? refs/heads/branches/%s" % branch
+ print "? refs/heads/branches/%s" % gitref(branch)
for bmark in bmarks:
- print "? refs/heads/%s" % bmark
+ print "? refs/heads/%s" % gitref(bmark)
for tag, node in repo.tagslist():
if tag == 'tip':
continue
- print "? refs/tags/%s" % tag
+ print "? refs/tags/%s" % gitref(tag)
print
data = parser.get_data()
blob_marks[mark] = data
parser.next()
- return
def get_merge_files(repo, p1, p2, files):
for e in repo[p1].files():
files[e] = f
def parse_commit(parser):
- global marks, blob_marks, bmarks, parsed_refs
+ global marks, blob_marks, parsed_refs
global mode
from_mark = merge_mark = None
if parser.check('merge'):
die('octopus merges are not supported yet')
+ # fast-export adds an extra newline
+ if data[-1] == '\n':
+ data = data[:-1]
+
files = {}
for line in parser:
mark = int(mark_ref[1:])
f = { 'mode' : hgmode(m), 'data' : blob_marks[mark] }
elif parser.check('D'):
- t, path = line.split(' ')
+ t, path = line.split(' ', 1)
f = { 'deleted' : True }
else:
die('Unknown file command: %s' % line)
if merge_mark:
get_merge_files(repo, p1, p2, files)
+ # Check if the ref is supposed to be a named branch
+ if ref.startswith('refs/heads/branches/'):
+ branch = ref[len('refs/heads/branches/'):]
+ extra['branch'] = hgref(branch)
+
if mode == 'hg':
i = data.find('\n--HG--\n')
if i >= 0:
tmp = data[i + len('\n--HG--\n'):].strip()
- for k, v in [e.split(' : ') for e in tmp.split('\n')]:
+ for k, v in [e.split(' : ', 1) for e in tmp.split('\n')]:
if k == 'rename':
old, new = v.split(' => ', 1)
files[new]['rename'] = old
rev = repo[node].rev()
parsed_refs[ref] = node
-
marks.new_mark(rev, commit_mark)
def parse_reset(parser):
+ global parsed_refs
+
ref = parser[1]
parser.next()
# ugh
data = parser.get_data()
parser.next()
- # nothing to do
+ parsed_tags[name] = (tagger, data)
+
+def write_tag(repo, tag, node, msg, author):
+ branch = repo[node].branch()
+ tip = branch_tip(repo, branch)
+ tip = repo[tip]
+
+ def getfilectx(repo, memctx, f):
+ try:
+ fctx = tip.filectx(f)
+ data = fctx.data()
+ except error.ManifestLookupError:
+ data = ""
+ content = data + "%s %s\n" % (hghex(node), tag)
+ return context.memfilectx(f, content, False, False, None)
+
+ p1 = tip.hex()
+ p2 = '\0' * 20
+ if not author:
+ author = (None, 0, 0)
+ user, date, tz = author
+
+ ctx = context.memctx(repo, (p1, p2), msg,
+ ['.hgtags'], getfilectx,
+ user, (date, tz), {'branch' : branch})
+
+ tmp = encoding.encoding
+ encoding.encoding = 'utf-8'
+
+ tagnode = repo.commitctx(ctx)
+
+ encoding.encoding = tmp
+
+ return tagnode
def do_export(parser):
global parsed_refs, bmarks, peer
+ p_bmarks = []
+
parser.next()
for line in parser.each_block('done'):
for ref, node in parsed_refs.iteritems():
if ref.startswith('refs/heads/branches'):
- pass
+ branch = ref[len('refs/heads/branches/'):]
+ if branch in branches and node in branches[branch]:
+ # up to date
+ continue
+ print "ok %s" % ref
elif ref.startswith('refs/heads/'):
bmark = ref[len('refs/heads/'):]
- if bmark in bmarks:
- old = bmarks[bmark].hex()
- else:
- old = ''
- if not bookmarks.pushbookmark(parser.repo, bmark, old, node):
- continue
+ p_bmarks.append((bmark, node))
+ continue
elif ref.startswith('refs/tags/'):
tag = ref[len('refs/tags/'):]
- parser.repo.tag([tag], node, None, True, None, {})
+ tag = hgref(tag)
+ author, msg = parsed_tags.get(tag, (None, None))
+ if mode == 'git':
+ if not msg:
+ msg = 'Added tag %s for changeset %s' % (tag, hghex(node[:6]));
+ write_tag(parser.repo, tag, node, msg, author)
+ else:
+ fp = parser.repo.opener('localtags', 'a')
+ fp.write('%s %s\n' % (hghex(node), tag))
+ fp.close()
+ print "ok %s" % ref
else:
# transport-helper/fast-export bugs
continue
+
+ if peer:
+ parser.repo.push(peer, force=force_push)
+
+ # handle bookmarks
+ for bmark, node in p_bmarks:
+ ref = 'refs/heads/' + bmark
+ new = hghex(node)
+
+ if bmark in bmarks:
+ old = bmarks[bmark].hex()
+ else:
+ old = ''
+
+ if old == new:
+ continue
+
+ if bmark == 'master' and 'master' not in parser.repo._bookmarks:
+ # fake bookmark
+ pass
+ elif bookmarks.pushbookmark(parser.repo, bmark, old, new):
+ # updated locally
+ pass
+ else:
+ print "error %s" % ref
+ continue
+
+ if peer:
+ rb = peer.listkeys('bookmarks')
+ old = rb.get(bmark, '')
+ if not peer.pushkey('bookmarks', bmark, old, new):
+ print "error %s" % ref
+ continue
+
print "ok %s" % ref
print
- if peer:
- parser.repo.push(peer, force=False)
-
def fix_path(alias, repo, orig_url):
- repo_url = util.url(repo.url())
- url = util.url(orig_url)
- if str(url) == str(repo_url):
+ url = urlparse.urlparse(orig_url, 'file')
+ if url.scheme != 'file' or os.path.isabs(url.path):
return
- cmd = ['git', 'config', 'remote.%s.url' % alias, "hg::%s" % repo_url]
+ abs_url = urlparse.urljoin("%s/" % os.getcwd(), orig_url)
+ cmd = ['git', 'config', 'remote.%s.url' % alias, "hg::%s" % abs_url]
subprocess.call(cmd)
def main(args):
global prefix, dirname, branches, bmarks
global marks, blob_marks, parsed_refs
global peer, mode, bad_mail, bad_name
- global track_branches
+ global track_branches, force_push, is_tmp
+ global parsed_tags
+ global filenodes
alias = args[1]
url = args[2]
hg_git_compat = False
track_branches = True
+ force_push = True
+
try:
if get_config('remote-hg.hg-git-compat') == 'true\n':
hg_git_compat = True
track_branches = False
if get_config('remote-hg.track-branches') == 'false\n':
track_branches = False
+ if get_config('remote-hg.force-push') == 'false\n':
+ force_push = False
except subprocess.CalledProcessError:
pass
if alias[4:] == url:
is_tmp = True
- alias = util.sha1(alias).hexdigest()
+ alias = hashlib.sha1(alias).hexdigest()
else:
is_tmp = False
bmarks = {}
blob_marks = {}
parsed_refs = {}
+ marks = None
+ parsed_tags = {}
+ filenodes = {}
repo = get_repo(url, alias)
prefix = 'refs/hg/%s' % alias
die('unhandled command: %s' % line)
sys.stdout.flush()
+def bye():
+ if not marks:
+ return
if not is_tmp:
marks.store()
else:
shutil.rmtree(dirname)
+atexit.register(bye)
sys.exit(main(sys.argv))