hgext3rd/topic/stack.py
author Pierre-Yves David <pierre-yves.david@octobus.net>
Wed, 28 Jun 2017 01:53:21 +0200
changeset 2670 f5d52fa1cd55
parent 2669 b933a8068c17
child 2684 90e11985d0cc
permissions -rw-r--r--
topic: move the heads data to the branch line when appropriates The topic line is dropped as it is quite confusing.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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# stack.py - code related to stack workflow
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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.i18n import _
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from mercurial import (
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    destutil,
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    error,
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    node,
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)
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from .evolvebits import builddependencies, _orderrevs, _singlesuccessor
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def getstack(repo, branch=None, topic=None):
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    # XXX need sorting
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    if topic is not None and branch is not None:
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        raise error.ProgrammingError('both branch and topic specified (not defined yet)')
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    elif topic is not None:
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        trevs = repo.revs("topic(%s) - obsolete()", topic)
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    elif branch is not None:
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        trevs = repo.revs("branch(%s) - obsolete()", branch)
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    else:
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        raise error.ProgrammingError('neither branch and topic specified (not defined yet)')
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    return _orderrevs(repo, trevs)
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def labelsgen(prefix, labelssuffix):
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    """ Takes a label prefix and a list of suffixes. Returns a string of the prefix
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    formatted with each suffix separated with a space.
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    """
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    return ' '.join(prefix % suffix for suffix in labelssuffix)
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def showstack(ui, repo, branch=None, topic=None, opts=None):
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    if opts is None:
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        opts = {}
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    if topic is not None and branch is not None:
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        msg = 'both branch and topic specified [%s]{%s}(not defined yet)'
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        msg %= (branch, topic)
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        raise error.ProgrammingError(msg)
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    elif topic is not None:
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        prefix = 't'
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        if topic not in repo.topics:
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            raise error.Abort(_('cannot resolve "%s": no such topic found') % topic)
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    elif branch is not None:
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        prefix = 'b'
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    else:
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        raise error.ProgrammingError('neither branch and topic specified (not defined yet)')
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    fm = ui.formatter('topicstack', opts)
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    prev = None
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    entries = []
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    idxmap = {}
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    label = 'topic'
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    if topic == repo.currenttopic:
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        label = 'topic.active'
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    data = stackdata(repo, branch=branch, topic=topic)
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    if topic is not None:
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        fm.plain(_('### topic: %s')
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                 % ui.label(topic, label),
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                 label='topic.stack.summary.topic')
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        if 1 < data['headcount']:
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            fm.plain(' (')
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            fm.plain('%d heads' % data['headcount'],
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                     label='topic.stack.summary.headcount.multiple')
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            fm.plain(')')
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        fm.plain('\n')
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    fm.plain(_('### branch: %s')
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             % '+'.join(data['branches']), # XXX handle multi branches
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             label='topic.stack.summary.branches')
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    if topic is None:
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        if 1 < data['headcount']:
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            fm.plain(' (')
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            fm.plain('%d heads' % data['headcount'],
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                     label='topic.stack.summary.headcount.multiple')
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            fm.plain(')')
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    else:
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        if data['behindcount'] == -1:
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            fm.plain(', ')
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            fm.plain('ambigious rebase destination', label='topic.stack.summary.behinderror')
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        elif data['behindcount']:
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            fm.plain(', ')
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            fm.plain('%d behind' % data['behindcount'], label='topic.stack.summary.behindcount')
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    fm.plain('\n')
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    for idx, r in enumerate(getstack(repo, branch=branch, topic=topic), 1):
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        ctx = repo[r]
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        p1 = ctx.p1()
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        if p1.obsolete():
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            p1 = repo[_singlesuccessor(repo, p1)]
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        if p1.rev() != prev and p1.node() != node.nullid:
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            entries.append((idxmap.get(p1.rev()), False, p1))
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        entries.append((idx, True, ctx))
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        idxmap[ctx.rev()] = idx
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        prev = r
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    # super crude initial version
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    for idx, isentry, ctx in entries[::-1]:
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        states = []
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        iscurrentrevision = repo.revs('%d and parents()', ctx.rev())
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        if not isentry:
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            symbol = '^'
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            # "base" is kind of a "ghost" entry
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            # skip other label for them (no current, no unstable)
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            states = ['base']
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        elif ctx.unstable():
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            # current revision can be unstable also, so in that case show both
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            # the states and the symbol '@' (issue5553)
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            if iscurrentrevision:
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                states.append('current')
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                symbol = '@'
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            symbol = '$'
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            states.append('unstable')
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        elif iscurrentrevision:
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            states.append('current')
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            symbol = '@'
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        else:
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            symbol = ':'
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            states.append('clean')
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        fm.startitem()
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        fm.data(isentry=isentry)
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        if idx is None:
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            fm.plain('  ')
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        else:
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            fm.write('topic.stack.index', '%s%%d' % prefix, idx,
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                     label='topic.stack.index ' + labelsgen('topic.stack.index.%s', states))
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        fm.write('topic.stack.state.symbol', '%s', symbol,
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                 label='topic.stack.state ' + labelsgen('topic.stack.state.%s', states))
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        fm.plain(' ')
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        fm.write('topic.stack.desc', '%s', ctx.description().splitlines()[0],
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                 label='topic.stack.desc ' + labelsgen('topic.stack.desc.%s', states))
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        fm.condwrite(states != ['clean'] and idx is not None, 'topic.stack.state',
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                     ' (%s)', fm.formatlist(states, 'topic.stack.state'),
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                     label='topic.stack.state ' + labelsgen('topic.stack.state.%s', states))
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        fm.plain('\n')
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    fm.end()
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parents: 1896
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def stackdata(repo, branch=None, topic=None):
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    """get various data about a stack
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    :changesetcount: number of non-obsolete changesets in the stack
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    :troubledcount: number on troubled changesets
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    :headcount: number of heads on the topic
1985
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parents: 1982
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    :behindcount: number of changeset on rebase destination
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    """
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    data = {}
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    revs = getstack(repo, branch, topic)
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    data['changesetcount'] = len(revs)
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    data['troubledcount'] = len([r for r in revs if repo[r].troubled()])
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    deps, rdeps = builddependencies(repo, revs)
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    data['headcount'] = len([r for r in revs if not rdeps[r]])
1985
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    data['behindcount'] = 0
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    if revs:
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        minroot = [min(r for r in revs if not deps[r])]
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        try:
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            dest = destutil.destmerge(repo, action='rebase',
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                                      sourceset=minroot,
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                                      onheadcheck=False)
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            data['behindcount'] = len(repo.revs("only(%d, %ld)", dest,
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                                                minroot))
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        except error.NoMergeDestAbort:
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            data['behindcount'] = 0
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        except error.ManyMergeDestAbort:
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            data['behindcount'] = -1
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parents: 1985
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    data['branches'] = sorted(set(repo[r].branch() for r in revs))
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    return data