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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
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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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patch,
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registrar,
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scmutil,
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util,
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)
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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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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 date.strftime(opts['dateformat'])
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else:
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tmpl = opts.get('oldtemplate') or opts.get('template')
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tmpl = cmdutil.makelogtemplater(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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state = {'count': 0}
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rate = {}
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df = False
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if opts.get('date'):
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df = util.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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state['count'] += 1
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ui.progress(_('analyzing'), state['count'], total=len(repo),
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unit=_('revisions'))
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for ctx in cmdutil.walkchangerevs(repo, m, opts, prep):
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continue
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ui.progress(_('analyzing'), None)
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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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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('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, "r"):
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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 = 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('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('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(round(count * width / maxcount))
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for name, count in rate:
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ui.write(format(name, count))
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