view contrib/check-config.py @ 45462:c1d6e930ac8a

fsmonitor: increase the threshold before we recommend it, when using rust

50k files works just fine with the rust status, and it's annoying to
get told "consider using fsmonitor" when we have another solution to
the status speed.

400k files was not chosen in any rigorous way. I know 200k files is
fine. Twice as many files should still be fine.

Differential Revision: https://phab.mercurial-scm.org/D9021

#!/usr/bin/env python
#
# check-config - a config flag documentation checker for Mercurial
#
# Copyright 2015 Matt Mackall <[e-mail]>
#
# 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]))