Signed-off-by: Felipe Contreras <felipe.contreras@xxxxxxxxx>
---
contrib/remote-helpers/git-remote-bzr | 295 ++++++++++++++++++++++++++++++++++
1 file changed, 295 insertions(+)
diff --git a/contrib/remote-helpers/git-remote-bzr b/contrib/remote-helpers/git-remote-bzr
index b6be9d6..8366234 100755
--- a/contrib/remote-helpers/git-remote-bzr
+++ b/contrib/remote-helpers/git-remote-bzr
@@ -22,13 +22,17 @@ bzrlib.initialize()
import bzrlib.plugin
bzrlib.plugin.load_plugins()
+import bzrlib.generate_ids
+
import sys
import os
import json
import re
+import StringIO
NAME_RE = re.compile('^([^<>]+)')
AUTHOR_RE = re.compile('^([^<>]+?)? ?<([^<>]*)>$')
+RAW_AUTHOR_RE = re.compile('^(\w+) (.+)? <(.*)> (\d+) ([+-]\d+)')
def die(msg, *args):
sys.stderr.write('ERROR: %s\n' % (msg % args))
@@ -46,6 +50,7 @@ class Marks:
self.path = path
self.tips = {}
self.marks = {}
+ self.rev_marks = {}
self.last_mark = 0
self.load()
@@ -58,6 +63,9 @@ class Marks:
self.marks = tmp['marks']
self.last_mark = tmp['last-mark']
+ for rev, mark in self.marks.iteritems():
+ self.rev_marks[mark] = rev
+
def dict(self):
return { 'tips': self.tips, 'marks': self.marks, 'last-mark' : self.last_mark }
@@ -70,6 +78,9 @@ class Marks:
def from_rev(self, rev):
return self.marks[rev]
+ def to_rev(self, mark):
+ return self.rev_marks[mark]
+
def next_mark(self):
self.last_mark += 1
return self.last_mark
@@ -82,6 +93,11 @@ class Marks:
def is_marked(self, rev):
return self.marks.has_key(rev)
+ def new_mark(self, rev, mark):
+ self.marks[rev] = mark
+ self.rev_marks[mark] = rev
+ self.last_mark = mark
+
def get_tip(self, branch):
return self.tips.get(branch, None)
@@ -116,10 +132,35 @@ class Parser:
if self.line == 'done':
self.line = None
+ def get_mark(self):
+ i = self.line.index(':') + 1
+ return int(self.line[i:])
+
+ def get_data(self):
+ if not self.check('data'):
+ return None
+ i = self.line.index(' ') + 1
+ size = int(self.line[i:])
+ return sys.stdin.read(size)
+
+ def get_author(self):
+ m = RAW_AUTHOR_RE.match(self.line)
+ if not m:
+ return None
+ _, name, email, date, tz = m.groups()
+ committer = '%s <%s>' % (name, email)
+ tz = int(tz)
+ tz = ((tz / 100) * 3600) + ((tz % 100) * 60)
+ return (committer, int(date), tz)
+
def rev_to_mark(rev):
global marks
return marks.from_rev(rev)
+def mark_to_rev(mark):
+ global marks
+ return marks.to_rev(mark)
+
def fixup_user(user):
name = mail = None
user = user.replace('"', '')
@@ -295,9 +336,255 @@ def do_import(parser):
sys.stdout.flush()
+def parse_blob(parser):
+ global blob_marks
+
+ parser.next()
+ mark = parser.get_mark()
+ parser.next()
+ data = parser.get_data()
+ blob_marks[mark] = data
+ parser.next()
+
+class CustomTree():
+
+ def __init__(self, repo, revid, parents, files):
+ global files_cache
+
+ self.repo = repo
+ self.revid = revid
+ self.parents = parents
+ self.updates = files
+
+ def copy_tree(revid):
+ files = files_cache[revid] = {}
+ tree = repo.repository.revision_tree(revid)
+ repo.lock_read()
+ try:
+ for path, entry in tree.iter_entries_by_dir():
+ files[path] = entry.file_id
+ finally:
+ repo.unlock()
+ return files
+
+ if len(parents) == 0:
+ self.base_id = bzrlib.revision.NULL_REVISION
+ self.base_files = {}
+ else:
+ self.base_id = parents[0]
+ self.base_files = files_cache.get(self.base_id, None)
+ if not self.base_files:
+ self.base_files = copy_tree(self.base_id)
+
+ self.files = files_cache[revid] = self.base_files.copy()
+
+ def last_revision(self):
+ return self.base_id
+
+ def iter_changes(self):
+ changes = []
+
+ def get_parent(dirname, basename):
+ parent_fid = self.base_files.get(dirname, None)
+ if parent_fid:
+ return parent_fid
+ parent_fid = self.files.get(dirname, None)
+ if parent_fid:
+ return parent_fid
+ if basename == '':
+ return None
+ d = add_entry(dirname, 'directory')
+ return d[0]
+
+ def add_entry(path, kind):
+ dirname, basename = os.path.split(path)
+ parent_fid = get_parent(dirname, basename)
+ fid = bzrlib.generate_ids.gen_file_id(path)
+ change = (fid,
+ (None, path),
+ True,
+ (False, True),
+ (None, parent_fid),
+ (None, basename),
+ (None, kind),
+ (None, False))
+ self.files[path] = change[0]
+ changes.append(change)
+ return change
+
+ def update_entry(path, kind):
+ dirname, basename = os.path.split(path)
+ fid = self.base_files[path]
+ parent_fid = get_parent(dirname, basename)
+ change = (fid,
+ (path, path),
+ True,
+ (True, True),
+ (None, parent_fid),
+ (None, basename),
+ (None, kind),
+ (None, False))
+ self.files[path] = change[0]
+ changes.append(change)
+ return change
+
+ def remove_entry(path, kind):
+ dirname, basename = os.path.split(path)
+ fid = self.base_files[path]
+ parent_fid = get_parent(dirname, basename)
+ change = (fid,
+ (path, None),
+ True,
+ (True, False),
+ (parent_fid, None),
+ (None, None),
+ (None, None),
+ (None, None))
+ del self.files[path]
+ changes.append(change)
+ return change
+
+ for path, f in self.updates.iteritems():
+ if 'deleted' in f:
+ remove_entry(path, 'file')
+ elif path in self.base_files:
+ update_entry(path, 'file')
+ else:
+ add_entry(path, 'file')
+
+ return changes
+
+ def get_file_with_stat(self, file_id, path=None):
+ return (StringIO.StringIO(self.updates[path]['data']), None)
+
+def parse_commit(parser):
+ global marks, blob_marks, bmarks, parsed_refs
+ global mode
+
+ parents = []
+
+ ref = parser[1]
+ parser.next()
+
+ if ref != 'refs/heads/master':
+ die("bzr doesn't support multiple branches; use 'master'")
+
+ commit_mark = parser.get_mark()
+ parser.next()
+ author = parser.get_author()
+ parser.next()
+ committer = parser.get_author()
+ parser.next()
+ data = parser.get_data()
+ parser.next()
+ if parser.check('from'):
+ parents.append(parser.get_mark())
+ parser.next()
+ while parser.check('merge'):
+ parents.append(parser.get_mark())
+ parser.next()
+
+ files = {}
+
+ for line in parser:
+ if parser.check('M'):
+ t, m, mark_ref, path = line.split(' ', 3)
+ mark = int(mark_ref[1:])
+ f = { 'mode' : m, 'data' : blob_marks[mark] }
+ elif parser.check('D'):
+ t, path = line.split(' ')
+ f = { 'deleted' : True }
+ else:
+ die('Unknown file command: %s' % line)
+ files[path] = f
+
+ repo = parser.repo
+
+ committer, date, tz = committer
+ parents = [str(mark_to_rev(p)) for p in parents]
+ revid = bzrlib.generate_ids.gen_revision_id(committer, date)
+ props = {}
+ props['branch-nick'] = repo.nick
+
+ mtree = CustomTree(repo, revid, parents, files)
+ changes = mtree.iter_changes()
+
+ repo.lock_write()
+ try:
+ builder = repo.get_commit_builder(parents, None, date, tz, committer, props, revid, False)
+ try:
+ list(builder.record_iter_changes(mtree, mtree.last_revision(), changes))
+ builder.finish_inventory()
+ builder.commit(data.decode('utf-8', 'replace'))
+ except Exception, e:
+ builder.abort()
+ raise
+ finally:
+ repo.unlock()
+
+ parsed_refs[ref] = revid
+ marks.new_mark(revid, commit_mark)
+
+def parse_reset(parser):
+ global parsed_refs
+
+ ref = parser[1]
+ parser.next()
+
+ if ref != 'refs/heads/master':
+ die("bzr doesn't support multiple branches; use 'master'")
+
+ # ugh
+ if parser.check('commit'):
+ parse_commit(parser)
+ return
+ if not parser.check('from'):
+ return
+ from_mark = parser.get_mark()
+ parser.next()
+
+ parsed_refs[ref] = mark_to_rev(from_mark)
+
+def do_export(parser):
+ global parsed_refs, dirname
+
+ parser.next()
+
+ for line in parser.each_block('done'):
+ if parser.check('blob'):
+ parse_blob(parser)
+ elif parser.check('commit'):
+ parse_commit(parser)
+ elif parser.check('reset'):
+ parse_reset(parser)
+ elif parser.check('tag'):
+ pass
+ elif parser.check('feature'):
+ pass
+ else:
+ die('unhandled export command: %s' % line)
+
+ repo = parser.repo
+
+ for ref, revid in parsed_refs.iteritems():
+ if ref == 'refs/heads/master':
+ repo.generate_revision_history(revid, marks.get_tip('master'))
+ print "ok %s" % ref
+ print
+
def do_capabilities(parser):
+ global dirname
+
print "import"
+ print "export"
print "refspec refs/heads/*:%s/heads/*" % prefix
+
+ path = os.path.join(dirname, 'marks-git')
+
+ if os.path.exists(path):
+ print "*import-marks %s" % path
+ print "*export-marks %s" % path
+
print
def do_list(parser):
@@ -316,6 +603,9 @@ def get_repo(url, alias):
def main(args):
global marks, prefix, dirname
global tags, filenodes
+ global blob_marks
+ global parsed_refs
+ global files_cache
alias = args[1]
url = args[2]
@@ -323,6 +613,9 @@ def main(args):
prefix = 'refs/bzr/%s' % alias
tags = {}
filenodes = {}
+ blob_marks = {}
+ parsed_refs = {}
+ files_cache = {}
gitdir = os.environ['GIT_DIR']
dirname = os.path.join(gitdir, 'bzr', alias)
@@ -343,6 +636,8 @@ def main(args):
do_list(parser)
elif parser.check('import'):
do_import(parser)
+ elif parser.check('export'):
+ do_export(parser)
else:
die('unhandled command: %s' % line)
sys.stdout.flush()
--
1.8.0
--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html