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# churn.py - create a graph of revisions count grouped by template
#
# Copyright 2006 Josef "Jeff" Sipek <jeffpc@josefsipek.net>
# Copyright 2008 Alexander Solovyov <piranha@piranha.org.ua>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.
'''command to display statistics about repository history'''
from mercurial.i18n import _
from mercurial import patch, cmdutil, util, templater
import sys, os
import time, datetime
def maketemplater(ui, repo, tmpl):
tmpl = templater.parsestring(tmpl, quoted=False)
try:
t = cmdutil.changeset_templater(ui, repo, False, None, None, False)
except SyntaxError, inst:
raise util.Abort(inst.args[0])
t.use_template(tmpl)
return t
def changedlines(ui, repo, ctx1, ctx2, fns):
lines = 0
fmatch = cmdutil.matchfiles(repo, fns)
diff = ''.join(patch.diff(repo, ctx1.node(), ctx2.node(), fmatch))
for l in diff.split('\n'):
if (l.startswith("+") and not l.startswith("+++ ") or
l.startswith("-") and not l.startswith("--- ")):
lines += 1
return lines
def countrate(ui, repo, amap, *pats, **opts):
"""Calculate stats"""
if opts.get('dateformat'):
def getkey(ctx):
t, tz = ctx.date()
date = datetime.datetime(*time.gmtime(float(t) - tz)[:6])
return date.strftime(opts['dateformat'])
else:
tmpl = opts.get('template', '{author|email}')
tmpl = maketemplater(ui, repo, tmpl)
def getkey(ctx):
ui.pushbuffer()
tmpl.show(ctx)
return ui.popbuffer()
count = pct = 0
rate = {}
df = False
if opts.get('date'):
df = util.matchdate(opts['date'])
get = util.cachefunc(lambda r: repo[r].changeset())
changeiter, matchfn = cmdutil.walkchangerevs(ui, repo, pats, get, opts)
for st, rev, fns in changeiter:
if not st == 'add':
continue
if df and not df(get(rev)[2][0]): # doesn't match date format
continue
ctx = repo[rev]
key = getkey(ctx)
key = amap.get(key, key) # alias remap
if opts.get('changesets'):
rate[key] = rate.get(key, 0) + 1
else:
parents = ctx.parents()
if len(parents) > 1:
ui.note(_('Revision %d is a merge, ignoring...\n') % (rev,))
continue
ctx1 = parents[0]
lines = changedlines(ui, repo, ctx1, ctx, fns)
rate[key] = rate.get(key, 0) + lines
if opts.get('progress'):
count += 1
newpct = int(100.0 * count / max(len(repo), 1))
if pct < newpct:
pct = newpct
ui.write("\r" + _("generating stats: %d%%") % pct)
sys.stdout.flush()
if opts.get('progress'):
ui.write("\r")
sys.stdout.flush()
return rate
def churn(ui, repo, *pats, **opts):
'''histogram of changes to the repository
This command will display a histogram representing the number
of changed lines or revisions, grouped according to the given
template. The default template will group changes by author.
The --dateformat option may be used to group the results by
date instead.
Statistics are based on the number of changed lines, or
alternatively the number of matching revisions if the
--changesets option is specified.
Examples::
# display count of changed lines for every committer
hg churn -t '{author|email}'
# display daily activity graph
hg churn -f '%H' -s -c
# display activity of developers by month
hg churn -f '%Y-%m' -s -c
# display count of lines changed in every year
hg churn -f '%Y' -s
It is possible to map alternate email addresses to a main address
by providing a file using the following format::
<alias email> <actual email>
Such a file may be specified with the --aliases option, otherwise
a .hgchurn file will be looked for in the working directory root.
'''
def pad(s, l):
return (s + " " * l)[:l]
amap = {}
aliases = opts.get('aliases')
if not aliases and os.path.exists(repo.wjoin('.hgchurn')):
aliases = repo.wjoin('.hgchurn')
if aliases:
for l in open(aliases, "r"):
l = l.strip()
alias, actual = l.split()
amap[alias] = actual
rate = countrate(ui, repo, amap, *pats, **opts).items()
if not rate:
return
sortkey = ((not opts.get('sort')) and (lambda x: -x[1]) or None)
rate.sort(key=sortkey)
maxcount = float(max([v for k, v in rate]))
maxname = max([len(k) for k, v in rate])
ttywidth = util.termwidth()
ui.debug(_("assuming %i character terminal\n") % ttywidth)
width = ttywidth - maxname - 2 - 6 - 2 - 2
for date, count in rate:
print "%s %6d %s" % (pad(date, maxname), count,
"*" * int(count * width / maxcount))
cmdtable = {
"churn":
(churn,
[('r', 'rev', [], _('count rate for the specified revision or range')),
('d', 'date', '', _('count rate for revisions matching date spec')),
('t', 'template', '{author|email}', _('template to group changesets')),
('f', 'dateformat', '',
_('strftime-compatible format for grouping by date')),
('c', 'changesets', False, _('count rate by number of changesets')),
('s', 'sort', False, _('sort by key (default: sort by count)')),
('', 'aliases', '', _('file with email aliases')),
('', 'progress', None, _('show progress'))],
_("hg churn [-d DATE] [-r REV] [--aliases FILE] [--progress] [FILE]")),
}
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