hidden: add support to explicitly access hidden changesets via HTTP
We now detect hidden access request and validate them while handling HTTP
wireprotocol command. This changeset only introduces server support. Client
support is added in a subsequent changeset.
The mechanism we use for the HTTP wireprotocol is the same as the one used to
lift filtering for hgweb. The use of the global `access-hidden` parameter in
the http url is a simple and effective approach that
* works around the lack of global parameters in wire protocol v1,
* reuses the mechanism used for hgweb (that does not use the wireproto), and
* can be safely ignored by older client (fitting the best effort contract).
The feature is still experimental, so we can easily update the implementation
details in the future. However, landing a first implementation now will help
test the feature in the wild and iterate on alternative implementations if
deemed necessary.
# 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'''
import datetime
import os
import time
from mercurial.i18n import _
from mercurial.pycompat import open
from mercurial import (
cmdutil,
encoding,
logcmdutil,
patch,
pycompat,
registrar,
scmutil,
)
cmdtable = {}
command = registrar.command(cmdtable)
# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
# be specifying the version(s) of Mercurial they are tested with, or
# leave the attribute unspecified.
testedwith = b'ships-with-hg-core'
def changedlines(ui, repo, ctx1, ctx2, fmatch):
added, removed = 0, 0
diff = b''.join(patch.diff(repo, ctx1.node(), ctx2.node(), fmatch))
inhunk = False
for l in diff.split(b'\n'):
if inhunk and l.startswith(b"+"):
added += 1
elif inhunk and l.startswith(b"-"):
removed += 1
elif l.startswith(b"@"):
inhunk = True
elif l.startswith(b"d"):
inhunk = False
return (added, removed)
def countrate(ui, repo, amap, *pats, **opts):
"""Calculate stats"""
opts = pycompat.byteskwargs(opts)
if opts.get(b'dateformat'):
def getkey(ctx):
t, tz = ctx.date()
date = datetime.datetime(*time.gmtime(float(t) - tz)[:6])
return encoding.strtolocal(
date.strftime(encoding.strfromlocal(opts[b'dateformat']))
)
else:
tmpl = opts.get(b'oldtemplate') or opts.get(b'template')
tmpl = logcmdutil.maketemplater(ui, repo, tmpl)
def getkey(ctx):
ui.pushbuffer()
tmpl.show(ctx)
return ui.popbuffer()
progress = ui.makeprogress(
_(b'analyzing'), unit=_(b'revisions'), total=len(repo)
)
rate = {}
def prep(ctx, fmatch):
rev = ctx.rev()
key = getkey(ctx).strip()
key = amap.get(key, key) # alias remap
if opts.get(b'changesets'):
rate[key] = (rate.get(key, (0,))[0] + 1, 0)
else:
parents = ctx.parents()
if len(parents) > 1:
ui.note(_(b'revision %d is a merge, ignoring...\n') % (rev,))
return
ctx1 = parents[0]
lines = changedlines(ui, repo, ctx1, ctx, fmatch)
rate[key] = [r + l for r, l in zip(rate.get(key, (0, 0)), lines)]
progress.increment()
wopts = logcmdutil.walkopts(
pats=pats,
opts=opts,
revspec=opts[b'rev'],
date=opts[b'date'],
include_pats=opts[b'include'],
exclude_pats=opts[b'exclude'],
)
revs, makefilematcher = logcmdutil.makewalker(repo, wopts)
for ctx in scmutil.walkchangerevs(repo, revs, makefilematcher, prep):
continue
progress.complete()
return rate
@command(
b'churn',
[
(
b'r',
b'rev',
[],
_(b'count rate for the specified revision or revset'),
_(b'REV'),
),
(
b'd',
b'date',
b'',
_(b'count rate for revisions matching date spec'),
_(b'DATE'),
),
(
b't',
b'oldtemplate',
b'',
_(b'template to group changesets (DEPRECATED)'),
_(b'TEMPLATE'),
),
(
b'T',
b'template',
b'{author|email}',
_(b'template to group changesets'),
_(b'TEMPLATE'),
),
(
b'f',
b'dateformat',
b'',
_(b'strftime-compatible format for grouping by date'),
_(b'FORMAT'),
),
(b'c', b'changesets', False, _(b'count rate by number of changesets')),
(b's', b'sort', False, _(b'sort by key (default: sort by count)')),
(b'', b'diffstat', False, _(b'display added/removed lines separately')),
(b'', b'aliases', b'', _(b'file with email aliases'), _(b'FILE')),
]
+ cmdutil.walkopts,
_(b"hg churn [-d DATE] [-r REV] [--aliases FILE] [FILE]"),
helpcategory=command.CATEGORY_MAINTENANCE,
inferrepo=True,
)
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
# display count of lines changed in a time range
hg churn -d "2020-04 to 2020-09"
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.
Aliases will be split from the rightmost "=".
"""
def pad(s, l):
return s + b" " * (l - encoding.colwidth(s))
amap = {}
aliases = opts.get('aliases')
if not aliases and os.path.exists(repo.wjoin(b'.hgchurn')):
aliases = repo.wjoin(b'.hgchurn')
if aliases:
for l in open(aliases, b"rb"):
try:
alias, actual = l.rsplit(b'=' in l and b'=' or None, 1)
amap[alias.strip()] = actual.strip()
except ValueError:
l = l.strip()
if l:
ui.warn(_(b"skipping malformed alias: %s\n") % l)
continue
rate = list(countrate(ui, repo, amap, *pats, **opts).items())
if not rate:
return
if opts.get('sort'):
rate.sort()
else:
rate.sort(key=lambda x: (-sum(x[1]), x))
# 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 = ui.termwidth()
ui.debug(b"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 b"%s %15s %s%s\n" % (
pad(name, maxname),
b'+%d/-%d' % (added, removed),
ui.label(b'+' * charnum(added), b'diffstat.inserted'),
ui.label(b'-' * charnum(removed), b'diffstat.deleted'),
)
else:
width -= 6
def format(name, count):
return b"%s %6d %s\n" % (
pad(name, maxname),
sum(count),
b'*' * charnum(sum(count)),
)
def charnum(count):
return int(count * width // maxcount)
for name, count in rate:
ui.write(format(name, count))