# For remote repositories a local clone is stored in
# "$GIT_DIR/hg/origin/clone/.hg/".
-from mercurial import hg, ui, bookmarks, context, encoding, node, error, extensions
+from mercurial import hg, ui, bookmarks, context, encoding, node, error, extensions, discovery, util
import re
import sys
# named branches:
# git config --global remote-hg.track-branches false
#
-# If you don't want to force pushes (and thus risk creating new remote heads):
-# git config --global remote-hg.force-push false
-#
# If you want the equivalent of hg's clone/pull--insecure option:
# git config --global remote-hg.insecure true
#
AUTHOR_HG_RE = re.compile('^(.*?) ?<(.*?)(?:>(.+)?)?$')
RAW_AUTHOR_RE = re.compile('^(\w+) (?:(.+)? )?<(.*)> (\d+) ([+-]\d+)')
+VERSION = 2
+
def die(msg, *args):
sys.stderr.write('ERROR: %s\n' % (msg % args))
sys.exit(1)
m = { '100755': 'x', '120000': 'l' }
return m.get(mode, '')
-def hghex(node):
- return hg.node.hex(node)
+def hghex(n):
+ return node.hex(n)
+
+def hgbin(n):
+ return node.bin(n)
def hgref(ref):
return ref.replace('___', ' ')
def gitref(ref):
return ref.replace(' ', '___')
+def check_version(*check):
+ if not hg_version:
+ return True
+ return hg_version >= check
+
def get_config(config):
cmd = ['git', 'config', '--get', config]
process = subprocess.Popen(cmd, stdout=subprocess.PIPE)
class Marks:
- def __init__(self, path):
+ def __init__(self, path, repo):
self.path = path
+ self.repo = repo
+ self.clear()
+ self.load()
+
+ if self.version < VERSION:
+ if self.version == 1:
+ self.upgrade_one()
+
+ # upgraded?
+ if self.version < VERSION:
+ self.clear()
+ self.version = VERSION
+
+ def clear(self):
self.tips = {}
self.marks = {}
self.rev_marks = {}
self.last_mark = 0
-
- self.load()
+ self.version = 0
def load(self):
if not os.path.exists(self.path):
self.tips = tmp['tips']
self.marks = tmp['marks']
self.last_mark = tmp['last-mark']
+ self.version = tmp.get('version', 1)
for rev, mark in self.marks.iteritems():
- self.rev_marks[mark] = int(rev)
+ self.rev_marks[mark] = rev
+
+ def upgrade_one(self):
+ def get_id(rev):
+ return hghex(self.repo.changelog.node(int(rev)))
+ self.tips = dict((name, get_id(rev)) for name, rev in self.tips.iteritems())
+ self.marks = dict((get_id(rev), mark) for rev, mark in self.marks.iteritems())
+ self.rev_marks = dict((mark, get_id(rev)) for mark, rev in self.rev_marks.iteritems())
+ self.version = 2
def dict(self):
- return { 'tips': self.tips, 'marks': self.marks, 'last-mark' : self.last_mark }
+ return { 'tips': self.tips, 'marks': self.marks, 'last-mark' : self.last_mark, 'version' : self.version }
def store(self):
json.dump(self.dict(), open(self.path, 'w'))
return str(self.dict())
def from_rev(self, rev):
- return self.marks[str(rev)]
+ return self.marks[rev]
def to_rev(self, mark):
- return self.rev_marks[mark]
+ return str(self.rev_marks[mark])
def next_mark(self):
self.last_mark += 1
def get_mark(self, rev):
self.last_mark += 1
- self.marks[str(rev)] = self.last_mark
+ self.marks[rev] = self.last_mark
return self.last_mark
def new_mark(self, rev, mark):
- self.marks[str(rev)] = mark
+ self.marks[rev] = mark
self.rev_marks[mark] = rev
self.last_mark = mark
def is_marked(self, rev):
- return str(rev) in self.marks
+ return rev in self.marks
def get_tip(self, branch):
- return self.tips.get(branch, 0)
+ return str(self.tips[branch])
def set_tip(self, branch, tip):
self.tips[branch] = tip
removed = set()
# load earliest manifest first for caching reasons
- prev = repo[parent].manifest().copy()
+ prev = parent.manifest().copy()
cur = ctx.manifest()
for fn in cur:
return '%s <%s>' % (name, mail)
+def updatebookmarks(repo, peer):
+ remotemarks = peer.listkeys('bookmarks')
+ localmarks = repo._bookmarks
+
+ if not remotemarks:
+ return
+
+ for k, v in remotemarks.iteritems():
+ localmarks[k] = hgbin(v)
+
+ if hasattr(localmarks, 'write'):
+ localmarks.write()
+ else:
+ bookmarks.write(repo)
+
def get_repo(url, alias):
global dirname, peer
if get_config_bool('remote-hg.insecure'):
myui.setconfig('web', 'cacerts', '')
- try:
- mod = extensions.load(myui, 'hgext.schemes', None)
- mod.extsetup(myui)
- except ImportError:
- pass
+ extensions.loadall(myui)
- if hg.islocal(url):
+ if hg.islocal(url) and not os.environ.get('GIT_REMOTE_HG_TEST_REMOTE'):
repo = hg.repository(myui, url)
+ if not os.path.exists(dirname):
+ os.makedirs(dirname)
else:
- local_path = os.path.join(dirname, 'clone')
- if not os.path.exists(local_path):
- 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)
+ shared_path = os.path.join(gitdir, 'hg')
+ if not os.path.exists(shared_path):
try:
- peer = hg.peer(myui, {}, url)
+ hg.clone(myui, {}, url, shared_path, update=False, pull=True)
except:
die('Repository error')
- repo.pull(peer, heads=None, force=True)
+
+ if not os.path.exists(dirname):
+ os.makedirs(dirname)
+
+ local_path = os.path.join(dirname, 'clone')
+ if not os.path.exists(local_path):
+ hg.share(myui, shared_path, local_path, update=False)
+
+ repo = hg.repository(myui, local_path)
+ try:
+ peer = hg.peer(myui, {}, url)
+ except:
+ die('Repository error')
+ repo.pull(peer, heads=None, force=True)
+
+ updatebookmarks(repo, peer)
return repo
def rev_to_mark(rev):
global marks
- return marks.from_rev(rev)
+ return marks.from_rev(rev.hex())
def mark_to_rev(mark):
global marks
global prefix, marks, mode
ename = '%s/%s' % (kind, name)
- tip = marks.get_tip(ename)
+ try:
+ tip = marks.get_tip(ename)
+ tip = repo[tip].rev()
+ except:
+ tip = 0
revs = xrange(tip, head.rev() + 1)
- count = 0
-
- revs = [rev for rev in revs if not marks.is_marked(rev)]
+ total = len(revs)
for rev in revs:
c = repo[rev]
- (manifest, user, (time, tz), files, desc, extra) = repo.changelog.read(c.node())
+ node = c.node()
+
+ if marks.is_marked(c.hex()):
+ continue
+
+ (manifest, user, (time, tz), files, desc, extra) = repo.changelog.read(node)
rev_branch = extra['branch']
author = "%s %d %s" % (fixup_user(user), time, gittz(tz))
else:
committer = author
- parents = [p for p in repo.changelog.parentrevs(rev) if p >= 0]
+ parents = [repo[p] for p in repo.changelog.parentrevs(rev) if p >= 0]
if len(parents) == 0:
modified = c.manifest().keys()
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 "mark :%d" % (marks.get_mark(c.hex()))
print "author %s" % (author)
print "committer %s" % (committer)
print "data %d" % (len(desc))
if len(parents) > 1:
print "merge :%s" % (rev_to_mark(parents[1]))
- for f in modified_final:
- print "M %s :%u %s" % f
for f in removed:
print "D %s" % (fix_file_path(f))
+ for f in modified_final:
+ print "M %s :%u %s" % f
print
- count += 1
- if (count % 100 == 0):
- print "progress revision %d '%s' (%d/%d)" % (rev, name, count, len(revs))
+ progress = (rev - tip)
+ if (progress % 100 == 0):
+ print "progress revision %d '%s' (%d/%d)" % (rev, name, progress, total)
# make sure the ref is updated
print "reset %s/%s" % (prefix, ename)
- print "from :%u" % rev_to_mark(rev)
+ print "from :%u" % rev_to_mark(head)
print
- marks.set_tip(ename, rev)
+ marks.set_tip(ename, head.hex())
def export_tag(repo, tag):
export_ref(repo, tag, 'tags', repo[hgref(tag)])
if os.path.exists(path):
print "*import-marks %s" % path
print "*export-marks %s" % path
+ print "option"
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 branch_tip(branch):
+ return branches[branch][-1]
def get_branch_tip(repo, branch):
global branches
# verify there's only one head
if (len(heads) > 1):
warn("Branch '%s' has more than one head, consider merging" % branch)
- return branch_tip(repo, hgref(branch))
+ return branch_tip(hgref(branch))
return heads[0]
def list_head(repo, cur):
- global g_head, bmarks
+ global g_head, bmarks, fake_bmark
- head = bookmarks.readcurrent(repo)
- if head:
- node = repo[head]
- else:
- # fake bookmark from current branch
- head = cur
- node = repo['.']
- if not node:
- node = repo['tip']
- if not node:
- return
- if head == 'default':
- head = 'master'
- bmarks[head] = node
+ if 'default' not in branches:
+ # empty repo
+ return
+
+ node = repo[branch_tip('default')]
+ head = 'master' if not 'master' in bmarks else 'default'
+ fake_bmark = head
+ bmarks[head] = node
head = gitref(head)
print "@refs/heads/%s HEAD" % head
bmarks[bmark] = repo[node]
cur = repo.dirstate.branch()
+ orig = peer if peer else repo
+
+ for branch, heads in orig.branchmap().iteritems():
+ # only open heads
+ heads = [h for h in heads if 'close' not in repo.changelog.read(h)[5]]
+ if heads:
+ branches[branch] = heads
list_head(repo, cur)
if track_branches:
- for branch in repo.branchmap():
- heads = repo.branchheads(branch)
- if len(heads):
- branches[branch] = heads
-
for branch in branches:
print "? refs/heads/branches/%s" % gitref(branch)
if os.path.exists(path):
print "feature import-marks=%s" % path
print "feature export-marks=%s" % path
+ print "feature force"
sys.stdout.flush()
tmp = encoding.encoding
f = { 'ctx' : repo[p1][e] }
files[e] = f
+def c_style_unescape(string):
+ if string[0] == string[-1] == '"':
+ return string.decode('string-escape')[1:-1]
+ return string
+
def parse_commit(parser):
global marks, blob_marks, parsed_refs
global mode
f = { 'deleted' : True }
else:
die('Unknown file command: %s' % line)
+ path = c_style_unescape(path).decode('utf-8')
files[path] = f
+ # only export the commits if we are on an internal proxy repo
+ if dry_run and not peer:
+ parsed_refs[ref] = None
+ return
+
def getfilectx(repo, memctx, f):
of = files[f]
if 'deleted' in of:
extra['committer'] = "%s %u %u" % committer
if from_mark:
- p1 = repo.changelog.node(mark_to_rev(from_mark))
+ p1 = mark_to_rev(from_mark)
else:
- p1 = '\0' * 20
+ p1 = '0' * 40
if merge_mark:
- p2 = repo.changelog.node(mark_to_rev(merge_mark))
+ p2 = mark_to_rev(merge_mark)
else:
- p2 = '\0' * 20
+ p2 = '0' * 40
#
# If files changed from any of the parents, hg wants to know, but in git if
tmp = encoding.encoding
encoding.encoding = 'utf-8'
- node = repo.commitctx(ctx)
+ node = hghex(repo.commitctx(ctx))
encoding.encoding = tmp
- rev = repo[node].rev()
-
parsed_refs[ref] = node
- marks.new_mark(rev, commit_mark)
+ marks.new_mark(node, commit_mark)
def parse_reset(parser):
global parsed_refs
from_mark = parser.get_mark()
parser.next()
- node = parser.repo.changelog.node(mark_to_rev(from_mark))
- parsed_refs[ref] = node
+ try:
+ rev = mark_to_rev(from_mark)
+ except KeyError:
+ rev = None
+ parsed_refs[ref] = rev
def parse_tag(parser):
name = parser[1]
def write_tag(repo, tag, node, msg, author):
branch = repo[node].branch()
- tip = branch_tip(repo, branch)
+ tip = branch_tip(branch)
tip = repo[tip]
def getfilectx(repo, memctx, f):
data = fctx.data()
except error.ManifestLookupError:
data = ""
- content = data + "%s %s\n" % (hghex(node), tag)
+ content = data + "%s %s\n" % (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
+ p2 = '0' * 40
+ if author:
+ user, date, tz = author
+ date_tz = (date, tz)
+ else:
+ cmd = ['git', 'var', 'GIT_COMMITTER_IDENT']
+ process = subprocess.Popen(cmd, stdout=subprocess.PIPE)
+ output, _ = process.communicate()
+ m = re.match('^.* <.*>', output)
+ if m:
+ user = m.group(0)
+ else:
+ user = repo.ui.username()
+ date_tz = None
ctx = context.memctx(repo, (p1, p2), msg,
['.hgtags'], getfilectx,
- user, (date, tz), {'branch' : branch})
+ user, date_tz, {'branch' : branch})
tmp = encoding.encoding
encoding.encoding = 'utf-8'
encoding.encoding = tmp
- return tagnode
+ return (tagnode, branch)
+
+def checkheads_bmark(repo, ref, ctx):
+ bmark = ref[len('refs/heads/'):]
+ if not bmark in bmarks:
+ # new bmark
+ return True
+
+ ctx_old = bmarks[bmark]
+ ctx_new = ctx
+ if not repo.changelog.descendant(ctx_old.rev(), ctx_new.rev()):
+ if force_push:
+ print "ok %s forced update" % ref
+ else:
+ print "error %s non-fast forward" % ref
+ return False
+
+ return True
+
+def checkheads(repo, remote, p_revs):
+
+ remotemap = remote.branchmap()
+ if not remotemap:
+ # empty repo
+ return True
+
+ new = {}
+ ret = True
+
+ for node, ref in p_revs.iteritems():
+ ctx = repo[node]
+ branch = ctx.branch()
+ if not branch in remotemap:
+ # new branch
+ continue
+ if not ref.startswith('refs/heads/branches'):
+ if ref.startswith('refs/heads/'):
+ if not checkheads_bmark(repo, ref, ctx):
+ ret = False
+
+ # only check branches
+ continue
+ new.setdefault(branch, []).append(ctx.rev())
+
+ for branch, heads in new.iteritems():
+ old = [repo.changelog.rev(x) for x in remotemap[branch]]
+ for rev in heads:
+ if check_version(2, 3):
+ ancestors = repo.changelog.ancestors([rev], stoprev=min(old))
+ else:
+ ancestors = repo.changelog.ancestors(rev)
+ found = False
+
+ for x in old:
+ if x in ancestors:
+ found = True
+ break
+
+ if found:
+ continue
+
+ node = repo.changelog.node(rev)
+ ref = p_revs[node]
+ if force_push:
+ print "ok %s forced update" % ref
+ else:
+ print "error %s non-fast forward" % ref
+ ret = False
+
+ return ret
+
+def push_unsafe(repo, remote, parsed_refs, p_revs):
+
+ force = force_push
+
+ fci = discovery.findcommonincoming
+ commoninc = fci(repo, remote, force=force)
+ common, _, remoteheads = commoninc
+
+ if not checkheads(repo, remote, p_revs):
+ return None
+
+ cg = repo.getbundle('push', heads=list(p_revs), common=common)
+
+ unbundle = remote.capable('unbundle')
+ if unbundle:
+ if force:
+ remoteheads = ['force']
+ return remote.unbundle(cg, remoteheads, 'push')
+ else:
+ return remote.addchangegroup(cg, 'push', repo.url())
+
+def push(repo, remote, parsed_refs, p_revs):
+ if hasattr(remote, 'canpush') and not remote.canpush():
+ print "error cannot push"
+
+ if not p_revs:
+ # nothing to push
+ return
+
+ lock = None
+ unbundle = remote.capable('unbundle')
+ if not unbundle:
+ lock = remote.lock()
+ try:
+ ret = push_unsafe(repo, remote, parsed_refs, p_revs)
+ finally:
+ if lock is not None:
+ lock.release()
+
+ return ret
+
+def check_tip(ref, kind, name, heads):
+ try:
+ ename = '%s/%s' % (kind, name)
+ tip = marks.get_tip(ename)
+ except KeyError:
+ return True
+ else:
+ return tip in heads
def do_export(parser):
global parsed_refs, bmarks, peer
p_bmarks = []
+ p_revs = {}
parser.next()
else:
die('unhandled export command: %s' % line)
+ need_fetch = False
+
for ref, node in parsed_refs.iteritems():
+ bnode = hgbin(node) if node else None
if ref.startswith('refs/heads/branches'):
branch = ref[len('refs/heads/branches/'):]
- if branch in branches and node in branches[branch]:
+ if branch in branches and bnode in branches[branch]:
# up to date
continue
+
+ if peer:
+ remotemap = peer.branchmap()
+ if remotemap and branch in remotemap:
+ heads = [hghex(e) for e in remotemap[branch]]
+ if not check_tip(ref, 'branches', branch, heads):
+ print "error %s fetch first" % ref
+ need_fetch = True
+ continue
+
+ p_revs[bnode] = ref
print "ok %s" % ref
elif ref.startswith('refs/heads/'):
bmark = ref[len('refs/heads/'):]
- p_bmarks.append((bmark, node))
- continue
+ new = node
+ old = bmarks[bmark].hex() if bmark in bmarks else ''
+
+ if old == new:
+ continue
+
+ print "ok %s" % ref
+ if bmark != fake_bmark and \
+ not (bmark == 'master' and bmark not in parser.repo._bookmarks):
+ p_bmarks.append((ref, bmark, old, new))
+
+ if peer:
+ remote_old = peer.listkeys('bookmarks').get(bmark)
+ if remote_old:
+ if not check_tip(ref, 'bookmarks', bmark, remote_old):
+ print "error %s fetch first" % ref
+ need_fetch = True
+ continue
+
+ p_revs[bnode] = ref
elif ref.startswith('refs/tags/'):
+ if dry_run:
+ print "ok %s" % ref
+ continue
tag = ref[len('refs/tags/'):]
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)
+ msg = 'Added tag %s for changeset %s' % (tag, node[:12]);
+ tagnode, branch = write_tag(parser.repo, tag, node, msg, author)
+ p_revs[tagnode] = 'refs/heads/branches/' + gitref(branch)
else:
fp = parser.repo.opener('localtags', 'a')
- fp.write('%s %s\n' % (hghex(node), tag))
+ fp.write('%s %s\n' % (node, tag))
fp.close()
+ p_revs[bnode] = ref
print "ok %s" % ref
else:
# transport-helper/fast-export bugs
continue
- if peer:
- parser.repo.push(peer, force=force_push, newbranch=True)
-
- # 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 need_fetch:
+ print
+ return
- if old == new:
- continue
+ if dry_run:
+ if peer and not force_push:
+ checkheads(parser.repo, peer, p_revs)
+ print
+ return
- if bmark == 'master' and 'master' not in parser.repo._bookmarks:
- # fake bookmark
- print "ok %s" % ref
- continue
- elif bookmarks.pushbookmark(parser.repo, bmark, old, new):
- # updated locally
- pass
- else:
- print "error %s" % ref
- continue
+ if peer:
+ if not push(parser.repo, peer, parsed_refs, p_revs):
+ # do not update bookmarks
+ print
+ return
- if peer:
- rb = peer.listkeys('bookmarks')
- old = rb.get(bmark, '')
+ # update remote bookmarks
+ remote_bmarks = peer.listkeys('bookmarks')
+ for ref, bmark, old, new in p_bmarks:
+ if force_push:
+ old = remote_bmarks.get(bmark, '')
if not peer.pushkey('bookmarks', bmark, old, new):
print "error %s" % ref
- continue
-
- print "ok %s" % ref
+ else:
+ # update local bookmarks
+ for ref, bmark, old, new in p_bmarks:
+ if not bookmarks.pushbookmark(parser.repo, bmark, old, new):
+ print "error %s" % ref
print
+def do_option(parser):
+ global dry_run, force_push
+ _, key, value = parser.line.split(' ')
+ if key == 'dry-run':
+ dry_run = (value == 'true')
+ print 'ok'
+ elif key == 'force':
+ force_push = (value == 'true')
+ print 'ok'
+ else:
+ print 'unsupported'
+
def fix_path(alias, repo, orig_url):
url = urlparse.urlparse(orig_url, 'file')
if url.scheme != 'file' or os.path.isabs(url.path):
subprocess.call(cmd)
def main(args):
- global prefix, dirname, branches, bmarks
+ global prefix, gitdir, dirname, branches, bmarks
global marks, blob_marks, parsed_refs
global peer, mode, bad_mail, bad_name
global track_branches, force_push, is_tmp
global parsed_tags
global filenodes
+ global fake_bmark, hg_version
+ global dry_run
alias = args[1]
url = args[2]
hg_git_compat = get_config_bool('remote-hg.hg-git-compat')
track_branches = get_config_bool('remote-hg.track-branches', True)
- force_push = get_config_bool('remote-hg.force-push')
+ force_push = False
if hg_git_compat:
mode = 'hg'
marks = None
parsed_tags = {}
filenodes = {}
+ fake_bmark = None
+ try:
+ hg_version = tuple(int(e) for e in util.version().split('.'))
+ except:
+ hg_version = None
+ dry_run = False
repo = get_repo(url, alias)
prefix = 'refs/hg/%s' % alias
if not is_tmp:
fix_path(alias, peer or repo, url)
- if not os.path.exists(dirname):
- os.makedirs(dirname)
-
marks_path = os.path.join(dirname, 'marks-hg')
- marks = Marks(marks_path)
+ marks = Marks(marks_path, repo)
if sys.platform == 'win32':
import msvcrt
do_import(parser)
elif parser.check('export'):
do_export(parser)
+ elif parser.check('option'):
+ do_option(parser)
else:
die('unhandled command: %s' % line)
sys.stdout.flush()