heads: mention STARTREV in synopsis and help for --rev
Before this change, "hg help heads" said
hg heads [-ac] [-r REV] [REV]...
[...]
If STARTREV is specified, only those heads that are descendants
of STARTREV will be displayed.
[...]
-r --rev REV show only heads which are descendants of REV
[...]
which made little sense since there are two things called REV in the
synopsis and nothing called STARTREV.
A little digging reveals that the "[-r REV]" part of the synopsis was
introduced in 8e503fa54d2d, changed to "[-r STARTREV]" in
2bcef677a6c3, and then changed back to "[-r REV]" in 4b02fc71bbba.
The last change seems to be based on a patch[1] on our mailinglist
that actually *inserted* STARTREV again in the help for the command
line option itself. For some reason, the patch was changed to remove
STARTREV from the synopsis.
This change finally makes the help consistent by putting STARTREV back
into the help in all places where it is needed:
hg heads [-ac] [-r STARTREV] [REV]...
[...]
If STARTREV is specified, only those heads that are descendants
of STARTREV will be displayed.
[...]
-r --rev STARTREV show only heads which are descendants of STARTREV
[...]
This was not possible until 40c06bbf58be, which introduced the
possibility of naming the meta variables for each option.
[1]: http://mercurial.markmail.org/message/qgc55gd4fam4ogvz
# 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 or any later version.
'''command to display statistics about repository history'''
from mercurial.i18n import _
from mercurial import patch, cmdutil, util, templater, commands
import 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):
added, removed = 0, 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("+++ "):
added += 1
elif l.startswith("-") and not l.startswith("--- "):
removed += 1
return (added, removed)
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()
state = {'count': 0}
rate = {}
df = False
if opts.get('date'):
df = util.matchdate(opts['date'])
m = cmdutil.match(repo, pats, opts)
def prep(ctx, fns):
rev = ctx.rev()
if df and not df(ctx.date()[0]): # doesn't match date format
return
key = getkey(ctx)
key = amap.get(key, key) # alias remap
if opts.get('changesets'):
rate[key] = (rate.get(key, (0,))[0] + 1, 0)
else:
parents = ctx.parents()
if len(parents) > 1:
ui.note(_('Revision %d is a merge, ignoring...\n') % (rev,))
return
ctx1 = parents[0]
lines = changedlines(ui, repo, ctx1, ctx, fns)
rate[key] = [r + l for r, l in zip(rate.get(key, (0, 0)), lines)]
state['count'] += 1
ui.progress(_('analyzing'), state['count'], total=len(repo))
for ctx in cmdutil.walkchangerevs(repo, m, opts, prep):
continue
ui.progress(_('analyzing'), None)
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"):
try:
alias, actual = l.split('=' in l and '=' or None, 1)
amap[alias.strip()] = actual.strip()
except ValueError:
l = l.strip()
if l:
ui.warn(_("skipping malformed alias: %s\n" % l))
continue
rate = countrate(ui, repo, amap, *pats, **opts).items()
if not rate:
return
sortkey = ((not opts.get('sort')) and (lambda x: -sum(x[1])) or None)
rate.sort(key=sortkey)
# Be careful not to have a zero maxcount (issue833)
maxcount = float(max(sum(v) for k, v in rate)) or 1.0
maxname = max(len(k) for k, v in rate)
ttywidth = util.termwidth()
ui.debug("assuming %i character terminal\n" % ttywidth)
width = ttywidth - maxname - 2 - 2 - 2
if opts.get('diffstat'):
width -= 15
def format(name, diffstat):
added, removed = diffstat
return "%s %15s %s%s\n" % (pad(name, maxname),
'+%d/-%d' % (added, removed),
ui.label('+' * charnum(added),
'diffstat.inserted'),
ui.label('-' * charnum(removed),
'diffstat.deleted'))
else:
width -= 6
def format(name, count):
return "%s %6d %s\n" % (pad(name, maxname), sum(count),
'*' * charnum(sum(count)))
def charnum(count):
return int(round(count * width / maxcount))
for name, count in rate:
ui.write(format(name, count))
cmdtable = {
"churn":
(churn,
[('r', 'rev', [],
_('count rate for the specified revision or range'), _('REV')),
('d', 'date', '',
_('count rate for revisions matching date spec'), _('DATE')),
('t', 'template', '{author|email}',
_('template to group changesets'), _('TEMPLATE')),
('f', 'dateformat', '',
_('strftime-compatible format for grouping by date'), _('FORMAT')),
('c', 'changesets', False, _('count rate by number of changesets')),
('s', 'sort', False, _('sort by key (default: sort by count)')),
('', 'diffstat', False, _('display added/removed lines separately')),
('', 'aliases', '',
_('file with email aliases'), _('FILE')),
] + commands.walkopts,
_("hg churn [-d DATE] [-r REV] [--aliases FILE] [FILE]")),
}