sapling/eden/scm/tests/bruterebase.py
Adam Simpkins ab3a7cb21f Move fb-mercurial sources into an eden/scm subdirectory.
Summary:
In preparation for merging fb-mercurial sources to the Eden repository,
move everything from the top-level directory into an `eden/scm`
subdirectory.
2019-11-13 16:04:48 -08:00

72 lines
2.2 KiB
Python

# bruterebase.py - brute force rebase testing
#
# Copyright 2017 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.
from __future__ import absolute_import
from edenscm.hgext import rebase
from edenscm.mercurial import error, registrar, revsetlang
try:
xrange
except NameError:
xrange = range
cmdtable = {}
command = registrar.command(cmdtable)
@command(b"debugbruterebase")
def debugbruterebase(ui, repo, source, dest):
"""for every non-empty subset of source, run rebase -r subset -d dest
Print one line summary for each subset. Assume obsstore is enabled.
"""
srevs = list(repo.revs(source))
with repo.wlock(), repo.lock():
repolen = len(repo)
cl = repo.changelog
def getdesc(rev):
result = cl.changelogrevision(rev).description
if rev >= repolen:
result += b"'"
return result
for i in xrange(1, 2 ** len(srevs)):
subset = [rev for j, rev in enumerate(srevs) if i & (1 << j) != 0]
spec = revsetlang.formatspec(b"%ld", subset)
tr = repo.transaction(b"rebase")
tr.report = lambda x: 0 # hide "transaction abort"
ui.pushbuffer()
try:
rebase.rebase(ui, repo, dest=dest, rev=[spec])
except error.Abort as ex:
summary = b"ABORT: %s" % ex
except Exception as ex:
summary = b"CRASH: %s" % ex
else:
# short summary about new nodes
cl = repo.changelog
descs = []
for rev in xrange(repolen, len(repo)):
desc = b"%s:" % getdesc(rev)
for prev in cl.parentrevs(rev):
if prev > -1:
desc += getdesc(prev)
descs.append(desc)
descs.sort()
summary = " ".join(descs)
ui.popbuffer()
repo.localvfs.tryunlink(b"rebasestate")
subsetdesc = b"".join(getdesc(rev) for rev in subset)
ui.write((b"%s: %s\n") % (subsetdesc.rjust(len(srevs)), summary))
tr.abort()