hgext3rd/topic/revset.py
author Pierre-Yves David <pierre-yves.david@octobus.net>
Fri, 20 Oct 2017 18:41:05 +0200
branchmercurial-4.1
changeset 3109 3024ae293732
parent 2924 430fb1758d28
child 3156 31493a1b0e39
permissions -rw-r--r--
test-compat: merge with mercurial-4.2 branch
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from __future__ import absolute_import
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from mercurial import (
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    registrar,
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    revset,
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    util,
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)
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from . import (
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    constants,
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    destination,
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    stack,
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)
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try:
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    mkmatcher = revset._stringmatcher
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except AttributeError:
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    mkmatcher = util.stringmatcher
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revsetpredicate = registrar.revsetpredicate()
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@revsetpredicate('topic([topic])')
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def topicset(repo, subset, x):
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    """Specified topic or all changes with any topic specified.
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    If `topic` starts with `re:` the remainder of the name is treated
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    as a regular expression.
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    TODO: make `topic(revset)` work the same as `branch(revset)`.
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    """
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    args = revset.getargs(x, 0, 1, 'topic takes one or no arguments')
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    if args:
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        # match a specific topic
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        topic = revset.getstring(args[0], 'topic() argument must be a string')
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        if topic == '.':
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            topic = repo['.'].extra().get('topic', '')
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        _kind, _pattern, matcher = mkmatcher(topic)
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    else:
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        matcher = lambda t: bool(t)
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    mutable = revset._notpublic(repo, revset.fullreposet(repo), ())
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    rawchange = repo.changelog.changelogrevision
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    key = constants.extrakey
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    def matchtopic(r):
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        topic = rawchange(r).extra.get(key)
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        if topic is None:
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            return False
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        return matcher(topic)
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    return (subset & mutable).filter(matchtopic)
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@revsetpredicate('ngtip([branch])')
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def ngtipset(repo, subset, x):
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    """The untopiced tip.
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    Name is horrible so that people change it.
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    """
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    args = revset.getargs(x, 1, 1, 'topic takes one')
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    # match a specific topic
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    branch = revset.getstring(args[0], 'ngtip() argument must be a string')
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    if branch == '.':
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        branch = repo['.'].branch()
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    return subset & revset.baseset(destination.ngtip(repo, branch))
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@revsetpredicate('stack()')
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def stackset(repo, subset, x):
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    """All relevant changes in the current topic,
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    This is roughly equivalent to 'topic(.) - obsolete' with a sorting moving
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    unstable changeset after there future parent (as if evolve where already
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    run)."""
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    err = 'stack() takes no argument, it works on current topic'
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    revset.getargs(x, 0, 0, err)
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    topic = repo.currenttopic
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    topic = None
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    branch = None
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    if not topic and repo.currenttopic:
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        topic = repo.currenttopic
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    if not topic:
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        branch = repo[None].branch()
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    return revset.baseset(stack.stack(repo, branch=branch, topic=topic)[1:]) & subset