mirror of
https://github.com/facebook/sapling.git
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20ac277bc5
Reviewed By: singhsrb Differential Revision: D24258213 fbshipit-source-id: aceb6e0792b4646eb0805f56d981751eb85ae340
76 lines
2.4 KiB
Python
76 lines
2.4 KiB
Python
# bruterebase.py - brute force rebase testing
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#
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# Copyright 2017 Facebook, Inc.
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import
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from edenscm.hgext import rebase
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from edenscm.mercurial import error, registrar, revsetlang
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try:
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xrange
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except NameError:
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xrange = range
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cmdtable = {}
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command = registrar.command(cmdtable)
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@command("debugbruterebase")
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def debugbruterebase(ui, repo, source, dest):
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"""for every non-empty subset of source, run rebase -r subset -d dest
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Print one line summary for each subset. Assume obsstore is enabled.
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"""
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srevs = list(repo.revs(source))
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with repo.wlock(), repo.lock():
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repolen = len(repo)
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cl = repo.changelog
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newrevs = []
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def getdesc(rev):
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result = cl.changelogrevision(rev).description
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if rev in newrevs:
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result += "'"
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return result
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for i in xrange(1, 2 ** len(srevs)):
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subset = [rev for j, rev in enumerate(srevs) if i & (1 << j) != 0]
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spec = revsetlang.formatspec("%ld", subset)
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tr = repo.transaction("rebase")
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tr.report = lambda x: 0 # hide "transaction abort"
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oldnodes = set(repo.nodes("all()"))
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ui.pushbuffer()
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try:
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rebase.rebase(ui, repo, dest=dest, rev=[spec])
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except error.Abort as ex:
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summary = "ABORT: %s" % ex
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except Exception as ex:
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summary = "CRASH: %s" % ex
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else:
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# short summary about new nodes
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cl = repo.changelog
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descs = []
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newnodes = set(repo.nodes("all()"))
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newrevs = list(map(cl.rev, newnodes - oldnodes))
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for rev in sorted(newrevs):
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desc = "%s:" % getdesc(rev)
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for prev in cl.parentrevs(rev):
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if prev > -1:
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desc += getdesc(prev)
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descs.append(desc)
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descs.sort()
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summary = " ".join(descs)
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ui.popbuffer()
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repo.localvfs.tryunlink("rebasestate")
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subsetdesc = "".join(getdesc(rev) for rev in subset)
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ui.write(("%s: %s\n") % (subsetdesc.rjust(len(srevs)), summary))
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tr.abort()
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