Keep track of Mercurial revisions as Git notes under the 'refs/notes/hg'
ref, this way, the user can easily see which Mercurial revision
correspond to certain Git commit.
Unfortunately, there's no way to efficiently update the notes after
doing an export (push), so they'll have to be updated when importing
(fetching).
Signed-off-by: Felipe Contreras <felipe.contre...@gmail.com>
---
contrib/remote-helpers/git-remote-hg | 35 ++++++++++++++++++++++++++++++++++-
1 file changed, 34 insertions(+), 1 deletion(-)
diff --git a/contrib/remote-helpers/git-remote-hg
b/contrib/remote-helpers/git-remote-hg
index 307d82c..7f50b40 100755
--- a/contrib/remote-helpers/git-remote-hg
+++ b/contrib/remote-helpers/git-remote-hg
@@ -23,8 +23,12 @@ import subprocess
import urllib
import atexit
import urlparse, hashlib
+import time as ptime
#
+# If you want to see Mercurial revisions as Git commit notes:
+# git config core.notesRef refs/notes/hg
+#
# 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
@@ -126,6 +130,7 @@ class Marks:
self.rev_marks = {}
self.last_mark = 0
self.version = 0
+ self.last_note = 0
def load(self):
if not os.path.exists(self.path):
@@ -137,6 +142,7 @@ class Marks:
self.marks = tmp['marks']
self.last_mark = tmp['last-mark']
self.version = tmp.get('version', 1)
+ self.last_note = tmp.get('last-note', 0)
for rev, mark in self.marks.iteritems():
self.rev_marks[mark] = rev
@@ -150,7 +156,7 @@ class Marks:
self.version = 2
def dict(self):
- return { 'tips': self.tips, 'marks': self.marks, 'last-mark' :
self.last_mark, 'version' : self.version }
+ return { 'tips': self.tips, 'marks': self.marks, 'last-mark' :
self.last_mark, 'version' : self.version, 'last-note' : self.last_note }
def store(self):
json.dump(self.dict(), open(self.path, 'w'))
@@ -525,6 +531,31 @@ def export_ref(repo, name, kind, head):
print "from :%u" % rev_to_mark(head)
print
+ pending_revs = set(revs) - notes
+ if pending_revs:
+ note_mark = marks.next_mark()
+ ref = "refs/notes/hg"
+
+ print "commit %s" % ref
+ print "mark :%d" % (note_mark)
+ print "committer remote-hg <> %s" % (ptime.strftime('%s %z'))
+ desc = "Notes for %s\n" % (name)
+ print "data %d" % (len(desc))
+ print desc
+ if marks.last_note:
+ print "from :%u" % marks.last_note
+
+ for rev in pending_revs:
+ notes.add(rev)
+ c = repo[rev]
+ print "N inline :%u" % rev_to_mark(c)
+ msg = c.hex()
+ print "data %d" % (len(msg))
+ print msg
+ print
+
+ marks.last_note = note_mark
+
marks.set_tip(ename, head.hex())
def export_tag(repo, tag):
@@ -1126,6 +1157,7 @@ def main(args):
global filenodes
global fake_bmark, hg_version
global dry_run
+ global notes, alias
alias = args[1]
url = args[2]
@@ -1165,6 +1197,7 @@ def main(args):
except:
hg_version = None
dry_run = False
+ notes = set()
repo = get_repo(url, alias)
prefix = 'refs/hg/%s' % alias
--
1.8.4-fc
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