hgext/churn.py
author Boris Feld <boris.feld@octobus.net>
Mon, 05 Nov 2018 17:24:39 +0100
changeset 40537 cbd251d479bb
parent 40293 c303d65d2e34
child 43076 2372284d9457
permissions -rw-r--r--
perf: fix perfrevlogrevisions --reverse Currently, 'endrev' equals `len(revlog)`, a revision that does not exist. When asking for the reverse order, the arguments passed to xrange are `xrange(len(revlog), startrev)` which then crash. We need to offset 'endrev' by one so we don't crash anymore. Also, we offset 'startrev' to ensure we get the same number of revisions with and without the `--reverse` option. Differential Revision: https://phab.mercurial-scm.org/D5228
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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# churn.py - create a graph of revisions count grouped by template
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#
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# Copyright 2006 Josef "Jeff" Sipek <jeffpc@josefsipek.net>
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# Copyright 2008 Alexander Solovyov <piranha@piranha.org.ua>
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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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'''command to display statistics about repository history'''
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from __future__ import absolute_import, division
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import datetime
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import os
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import time
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from mercurial.i18n import _
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from mercurial import (
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    cmdutil,
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    encoding,
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    logcmdutil,
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    patch,
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    pycompat,
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    registrar,
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    scmutil,
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)
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from mercurial.utils import dateutil
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cmdtable = {}
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command = registrar.command(cmdtable)
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# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
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# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
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# be specifying the version(s) of Mercurial they are tested with, or
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# leave the attribute unspecified.
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testedwith = 'ships-with-hg-core'
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def changedlines(ui, repo, ctx1, ctx2, fns):
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    added, removed = 0, 0
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    fmatch = scmutil.matchfiles(repo, fns)
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    diff = ''.join(patch.diff(repo, ctx1.node(), ctx2.node(), fmatch))
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    for l in diff.split('\n'):
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        if l.startswith("+") and not l.startswith("+++ "):
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            added += 1
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        elif l.startswith("-") and not l.startswith("--- "):
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            removed += 1
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    return (added, removed)
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def countrate(ui, repo, amap, *pats, **opts):
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    """Calculate stats"""
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    opts = pycompat.byteskwargs(opts)
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    if opts.get('dateformat'):
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        def getkey(ctx):
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            t, tz = ctx.date()
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            date = datetime.datetime(*time.gmtime(float(t) - tz)[:6])
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            return encoding.strtolocal(
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                date.strftime(encoding.strfromlocal(opts['dateformat'])))
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    else:
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        tmpl = opts.get('oldtemplate') or opts.get('template')
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        tmpl = logcmdutil.maketemplater(ui, repo, tmpl)
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        def getkey(ctx):
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            ui.pushbuffer()
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            tmpl.show(ctx)
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            return ui.popbuffer()
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    progress = ui.makeprogress(_('analyzing'), unit=_('revisions'),
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                               total=len(repo))
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    rate = {}
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    df = False
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    if opts.get('date'):
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        df = dateutil.matchdate(opts['date'])
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    m = scmutil.match(repo[None], pats, opts)
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    def prep(ctx, fns):
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        rev = ctx.rev()
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        if df and not df(ctx.date()[0]): # doesn't match date format
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            return
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        key = getkey(ctx).strip()
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        key = amap.get(key, key) # alias remap
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        if opts.get('changesets'):
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            rate[key] = (rate.get(key, (0,))[0] + 1, 0)
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        else:
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            parents = ctx.parents()
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            if len(parents) > 1:
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                ui.note(_('revision %d is a merge, ignoring...\n') % (rev,))
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                return
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            ctx1 = parents[0]
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            lines = changedlines(ui, repo, ctx1, ctx, fns)
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            rate[key] = [r + l for r, l in zip(rate.get(key, (0, 0)), lines)]
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        progress.increment()
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    for ctx in cmdutil.walkchangerevs(repo, m, opts, prep):
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        continue
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    progress.complete()
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    return rate
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@command('churn',
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    [('r', 'rev', [],
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     _('count rate for the specified revision or revset'), _('REV')),
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    ('d', 'date', '',
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     _('count rate for revisions matching date spec'), _('DATE')),
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    ('t', 'oldtemplate', '',
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     _('template to group changesets (DEPRECATED)'), _('TEMPLATE')),
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    ('T', 'template', '{author|email}',
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     _('template to group changesets'), _('TEMPLATE')),
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    ('f', 'dateformat', '',
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     _('strftime-compatible format for grouping by date'), _('FORMAT')),
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    ('c', 'changesets', False, _('count rate by number of changesets')),
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    ('s', 'sort', False, _('sort by key (default: sort by count)')),
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    ('', 'diffstat', False, _('display added/removed lines separately')),
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    ('', 'aliases', '', _('file with email aliases'), _('FILE')),
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    ] + cmdutil.walkopts,
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    _("hg churn [-d DATE] [-r REV] [--aliases FILE] [FILE]"),
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    helpcategory=command.CATEGORY_MAINTENANCE,
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    inferrepo=True)
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def churn(ui, repo, *pats, **opts):
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    '''histogram of changes to the repository
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    This command will display a histogram representing the number
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    of changed lines or revisions, grouped according to the given
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    template. The default template will group changes by author.
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    The --dateformat option may be used to group the results by
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    date instead.
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    Statistics are based on the number of changed lines, or
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    alternatively the number of matching revisions if the
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    --changesets option is specified.
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    Examples::
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      # display count of changed lines for every committer
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      hg churn -T "{author|email}"
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      # display daily activity graph
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      hg churn -f "%H" -s -c
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      # display activity of developers by month
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      hg churn -f "%Y-%m" -s -c
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      # display count of lines changed in every year
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      hg churn -f "%Y" -s
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    It is possible to map alternate email addresses to a main address
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    by providing a file using the following format::
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      <alias email> = <actual email>
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    Such a file may be specified with the --aliases option, otherwise
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    a .hgchurn file will be looked for in the working directory root.
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    Aliases will be split from the rightmost "=".
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    '''
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    def pad(s, l):
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        return s + " " * (l - encoding.colwidth(s))
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    amap = {}
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    aliases = opts.get(r'aliases')
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    if not aliases and os.path.exists(repo.wjoin('.hgchurn')):
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        aliases = repo.wjoin('.hgchurn')
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    if aliases:
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        for l in open(aliases, "rb"):
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            try:
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                alias, actual = l.rsplit('=' in l and '=' or None, 1)
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                amap[alias.strip()] = actual.strip()
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            except ValueError:
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                l = l.strip()
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                if l:
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                    ui.warn(_("skipping malformed alias: %s\n") % l)
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                continue
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    rate = list(countrate(ui, repo, amap, *pats, **opts).items())
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    if not rate:
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        return
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    if opts.get(r'sort'):
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        rate.sort()
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    else:
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        rate.sort(key=lambda x: (-sum(x[1]), x))
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    # Be careful not to have a zero maxcount (issue833)
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    maxcount = float(max(sum(v) for k, v in rate)) or 1.0
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    maxname = max(len(k) for k, v in rate)
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    ttywidth = ui.termwidth()
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    ui.debug("assuming %i character terminal\n" % ttywidth)
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    width = ttywidth - maxname - 2 - 2 - 2
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    if opts.get(r'diffstat'):
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        width -= 15
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        def format(name, diffstat):
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            added, removed = diffstat
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            return "%s %15s %s%s\n" % (pad(name, maxname),
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                                       '+%d/-%d' % (added, removed),
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                                       ui.label('+' * charnum(added),
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                                                'diffstat.inserted'),
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                                       ui.label('-' * charnum(removed),
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                                                'diffstat.deleted'))
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    else:
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        width -= 6
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        def format(name, count):
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            return "%s %6d %s\n" % (pad(name, maxname), sum(count),
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                                    '*' * charnum(sum(count)))
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    def charnum(count):
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        return int(count * width // maxcount)
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    for name, count in rate:
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        ui.write(format(name, count))