Mercurial > hg
view contrib/check-config.py @ 46254:c4b792fa109e
branchmap: avoid ancestor computations in absence of non-continous branches
The branchhead computation is one of the more heavy operations for
bigger repositories as it has to scan all changesets and potentially
involves the expensive computation of the ancestor sets. Redo the
computation to handle the common cases directly and use tighter
conditions for when the ancestor scan is necessary. Most importantly,
avoid it completely if the non-continous branches are processed in one
update as seen in the initial computation after a clone.
For the Mercurial repository, it gives a small 2-3% performance boost.
For the NetBSD test repository, it cuts the time in half.
Differential Revision: https://phab.mercurial-scm.org/D9631
author | Joerg Sonnenberger <joerg@bec.de> |
---|---|
date | Fri, 18 Dec 2020 14:45:28 +0100 |
parents | c102b704edb5 |
children | d4ba4d51f85f |
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#!/usr/bin/env python3 # # check-config - a config flag documentation checker for Mercurial # # Copyright 2015 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import, print_function import re import sys foundopts = {} documented = {} allowinconsistent = set() configre = re.compile( br''' # Function call ui\.config(?P<ctype>|int|bool|list)\( # First argument. ['"](?P<section>\S+)['"],\s* # Second argument ['"](?P<option>\S+)['"](,\s+ (?:default=)?(?P<default>\S+?))? \)''', re.VERBOSE | re.MULTILINE, ) configwithre = re.compile( br''' ui\.config(?P<ctype>with)\( # First argument is callback function. This doesn't parse robustly # if it is e.g. a function call. [^,]+,\s* ['"](?P<section>\S+)['"],\s* ['"](?P<option>\S+)['"](,\s+ (?:default=)?(?P<default>\S+?))? \)''', re.VERBOSE | re.MULTILINE, ) configpartialre = br"""ui\.config""" ignorere = re.compile( br''' \#\s(?P<reason>internal|experimental|deprecated|developer|inconsistent)\s config:\s(?P<config>\S+\.\S+)$ ''', re.VERBOSE | re.MULTILINE, ) if sys.version_info[0] > 2: def mkstr(b): if isinstance(b, str): return b return b.decode('utf8') else: mkstr = lambda x: x def main(args): for f in args: sect = b'' prevname = b'' confsect = b'' carryover = b'' linenum = 0 for l in open(f, 'rb'): linenum += 1 # check topic-like bits m = re.match(br'\s*``(\S+)``', l) if m: prevname = m.group(1) if re.match(br'^\s*-+$', l): sect = prevname prevname = b'' if sect and prevname: name = sect + b'.' + prevname documented[name] = 1 # check docstring bits m = re.match(br'^\s+\[(\S+)\]', l) if m: confsect = m.group(1) continue m = re.match(br'^\s+(?:#\s*)?(\S+) = ', l) if m: name = confsect + b'.' + m.group(1) documented[name] = 1 # like the bugzilla extension m = re.match(br'^\s*(\S+\.\S+)$', l) if m: documented[m.group(1)] = 1 # like convert m = re.match(br'^\s*:(\S+\.\S+):\s+', l) if m: documented[m.group(1)] = 1 # quoted in help or docstrings m = re.match(br'.*?``(\S+\.\S+)``', l) if m: documented[m.group(1)] = 1 # look for ignore markers m = ignorere.search(l) if m: if m.group('reason') == b'inconsistent': allowinconsistent.add(m.group('config')) else: documented[m.group('config')] = 1 # look for code-like bits line = carryover + l m = configre.search(line) or configwithre.search(line) if m: ctype = m.group('ctype') if not ctype: ctype = 'str' name = m.group('section') + b"." + m.group('option') default = m.group('default') if default in ( None, b'False', b'None', b'0', b'[]', b'""', b"''", ): default = b'' if re.match(b'[a-z.]+$', default): default = b'<variable>' if ( name in foundopts and (ctype, default) != foundopts[name] and name not in allowinconsistent ): print(mkstr(l.rstrip())) fctype, fdefault = foundopts[name] print( "conflict on %s: %r != %r" % ( mkstr(name), (mkstr(ctype), mkstr(default)), (mkstr(fctype), mkstr(fdefault)), ) ) print("at %s:%d:" % (mkstr(f), linenum)) foundopts[name] = (ctype, default) carryover = b'' else: m = re.search(configpartialre, line) if m: carryover = line else: carryover = b'' for name in sorted(foundopts): if name not in documented: if not ( name.startswith(b"devel.") or name.startswith(b"experimental.") or name.startswith(b"debug.") ): ctype, default = foundopts[name] if default: if isinstance(default, bytes): default = mkstr(default) default = ' [%s]' % default elif isinstance(default, bytes): default = mkstr(default) print( "undocumented: %s (%s)%s" % (mkstr(name), mkstr(ctype), default) ) if __name__ == "__main__": if len(sys.argv) > 1: sys.exit(main(sys.argv[1:])) else: sys.exit(main([l.rstrip() for l in sys.stdin]))