tests/bruterebase.py
author Pierre-Yves David <pierre-yves.david@octobus.net>
Thu, 02 Feb 2023 17:35:01 +0100
changeset 50596 4a60280b5653
parent 49285 56f98406831b
permissions -rw-r--r--
safehasattr: pass attribute name as string instead of bytes This is a step toward replacing `util.safehasattr` usage with plain `hasattr`. The builtin function behave poorly in Python2 but this was fixed in Python3. These change are done one by one as they tend to have a small odd to trigger puzzling breackage.
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# 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 mercurial import (
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    error,
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    registrar,
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    revsetlang,
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)
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from hgext import rebase
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cmdtable = {}
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command = registrar.command(cmdtable)
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@command(b'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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        def getdesc(rev):
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            result = cl.changelogrevision(rev).description
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            if rev >= repolen:
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                result += b"'"
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            return result
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        for i in range(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(b'%ld', subset)
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            tr = repo.transaction(b'rebase')
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            tr._report = lambda x: 0  # hide "transaction abort"
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            with ui.silent():
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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 = b'ABORT: %s' % ex.message
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                except Exception as ex:
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                    summary = b'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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                    for rev in range(repolen, len(repo)):
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                        desc = b'%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 = b' '.join(descs)
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            repo.vfs.tryunlink(b'rebasestate')
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            subsetdesc = b''.join(getdesc(rev) for rev in subset)
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            ui.write(b'%s: %s\n' % (subsetdesc.rjust(len(srevs)), summary))
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            tr.abort()