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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.pycompat import open
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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 = b'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 = b''.join(patch.diff(repo, ctx1.node(), ctx2.node(), fmatch))
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for l in diff.split(b'\n'):
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if l.startswith(b"+") and not l.startswith(b"+++ "):
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added += 1
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elif l.startswith(b"-") and not l.startswith(b"--- "):
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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(b'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[b'dateformat']))
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)
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else:
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tmpl = opts.get(b'oldtemplate') or opts.get(b'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(
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_(b'analyzing'), unit=_(b'revisions'), total=len(repo)
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)
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rate = {}
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df = False
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if opts.get(b'date'):
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df = dateutil.matchdate(opts[b'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(b'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(_(b'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(
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b'churn',
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[
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(
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b'r',
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b'rev',
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[],
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_(b'count rate for the specified revision or revset'),
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_(b'REV'),
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),
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(
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b'd',
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b'date',
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b'',
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_(b'count rate for revisions matching date spec'),
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_(b'DATE'),
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),
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(
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b't',
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b'oldtemplate',
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b'',
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_(b'template to group changesets (DEPRECATED)'),
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_(b'TEMPLATE'),
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),
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(
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b'T',
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b'template',
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b'{author|email}',
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_(b'template to group changesets'),
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_(b'TEMPLATE'),
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),
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(
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b'f',
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b'dateformat',
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b'',
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_(b'strftime-compatible format for grouping by date'),
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_(b'FORMAT'),
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),
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(b'c', b'changesets', False, _(b'count rate by number of changesets')),
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(b's', b'sort', False, _(b'sort by key (default: sort by count)')),
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(b'', b'diffstat', False, _(b'display added/removed lines separately')),
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(b'', b'aliases', b'', _(b'file with email aliases'), _(b'FILE')),
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]
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+ cmdutil.walkopts,
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_(b"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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)
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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 + b" " * (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(b'.hgchurn')):
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aliases = repo.wjoin(b'.hgchurn')
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if aliases:
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for l in open(aliases, b"rb"):
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try:
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alias, actual = l.rsplit(b'=' in l and b'=' 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(_(b"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(b"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 b"%s %15s %s%s\n" % (
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pad(name, maxname),
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b'+%d/-%d' % (added, removed),
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ui.label(b'+' * charnum(added), b'diffstat.inserted'),
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ui.label(b'-' * charnum(removed), b'diffstat.deleted'),
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)
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else:
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width -= 6
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def format(name, count):
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return b"%s %6d %s\n" % (
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pad(name, maxname),
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sum(count),
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b'*' * charnum(sum(count)),
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)
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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))
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