mirror of
https://github.com/facebook/sapling.git
synced 2024-10-09 00:14:35 +03:00
4cfb665650
Summary: Before this change `hg pullbackup` did not set correct markers on commits. This change make possible to see what changes already landed even when we are restoring repository from backup. Before the change `fbclone` + `hg pullbackup` of repo with `C1` commit landed would result in: ``` o o C2 | | o o C1 | / | o ``` after: ``` o o C2 | | o x C1 | / | o ``` Reviewed By: StanislavGlebik Differential Revision: D7032572 fbshipit-source-id: ffee3c7cc23c24a3df9a89c999c9dd2de226dbff
90 lines
3.0 KiB
Python
90 lines
3.0 KiB
Python
# pullcreatemarkers.py - create obsolescence markers on pull for better rebases
|
|
#
|
|
# Copyright 2015 Facebook, Inc.
|
|
#
|
|
# This software may be used and distributed according to the terms of the
|
|
# GNU General Public License version 2 or any later version.
|
|
#
|
|
# The goal of this extensions is to create obsolescence markers locally for
|
|
# commits previously landed.
|
|
# It uses the phabricator revision number in the commit message to detect the
|
|
# relationship between a draft commit and its landed counterpart.
|
|
# Thanks to these markers, less information is displayed and rebases can have
|
|
# less irrelevant conflicts.
|
|
from mercurial import commands
|
|
from mercurial import obsolete
|
|
from mercurial import phases
|
|
from mercurial import extensions
|
|
from .extlib.phabricator import diffprops
|
|
from .phabstatus import COMMITTEDSTATUS, getdiffstatus
|
|
|
|
def getdiff(rev):
|
|
phabrev = diffprops.parserevfromcommitmsg(rev.description())
|
|
return int(phabrev) if phabrev else None
|
|
|
|
def extsetup(ui):
|
|
extensions.wrapcommand(commands.table, 'pull', _pull)
|
|
|
|
def _pull(orig, ui, repo, *args, **opts):
|
|
if not obsolete.isenabled(repo, obsolete.createmarkersopt):
|
|
return orig(ui, repo, *args, **opts)
|
|
|
|
maxrevbeforepull = len(repo.changelog)
|
|
r = orig(ui, repo, *args, **opts)
|
|
maxrevafterpull = len(repo.changelog)
|
|
|
|
createmarkers(r, repo, maxrevbeforepull, maxrevafterpull)
|
|
return r
|
|
|
|
def createmarkers(pullres, repo, start, stop, fromdrafts=True):
|
|
landeddiffs = getlandeddiffs(repo, start, stop, onlypublic=fromdrafts)
|
|
|
|
if not landeddiffs:
|
|
return
|
|
|
|
tocreate = getmarkersfromdrafts(repo, landeddiffs) if fromdrafts else \
|
|
getmarkers(repo, landeddiffs)
|
|
|
|
if not tocreate:
|
|
return
|
|
|
|
unfiltered = repo.unfiltered()
|
|
|
|
with unfiltered.lock(), unfiltered.transaction('pullcreatemarkers'):
|
|
obsolete.createmarkers(unfiltered, tocreate)
|
|
|
|
def getlandeddiffs(repo, start, stop, onlypublic=True):
|
|
landeddiffs = {}
|
|
|
|
for rev in range(start, stop):
|
|
rev = repo[rev]
|
|
if not onlypublic or rev.phase() == phases.public:
|
|
diff = getdiff(rev)
|
|
if diff is not None:
|
|
landeddiffs[diff] = rev
|
|
return landeddiffs
|
|
|
|
def getmarkers(repo, landeddiffs):
|
|
return [(landeddiffs[rev], tuple())
|
|
for rev in getlandedrevsiter(repo, landeddiffs)]
|
|
|
|
def getmarkersfromdrafts(repo, landeddiffs):
|
|
tocreate = []
|
|
unfiltered = repo.unfiltered()
|
|
|
|
for rev in unfiltered.revs("draft() - obsolete()"):
|
|
rev = unfiltered[rev]
|
|
diff = getdiff(rev)
|
|
|
|
if diff in landeddiffs and landeddiffs[diff].rev() != rev.rev():
|
|
marker = (rev, (landeddiffs[diff],))
|
|
tocreate.append(marker)
|
|
return tocreate
|
|
|
|
def getlandedrevsiter(repo, landeddiffs):
|
|
statuses = (status for status in getdiffstatus(repo, *landeddiffs.keys())
|
|
if status != 'Error')
|
|
|
|
return (diff for status, diff in zip(statuses, landeddiffs.keys())
|
|
if status['status'] == COMMITTEDSTATUS)
|