comparison mercurial/match.py @ 42329:c7652f7440d9

rust-filepatterns: call new Rust implementations from Python

This change adds the import to the `rust-cpython` bindings and uses
them when appropriate.

A wrapper function has been defined in the case of `_regex` to
keep this patch simple.

Differential Revision: https://phab.mercurial-scm.org/D6273

42328:94f3a73b6672

    util,
)
from .utils import (
    stringutil,
)

allpatternkinds = ('re', 'glob', 'path', 'relglob', 'relpath', 'relre',
                   'rootglob',
                   'listfile', 'listfile0', 'set', 'include', 'subinclude',
                   'rootfilesin')

        else:
            res += escape(c, c)
    return res

def _regex(kind, pat, globsuffix):
    '''Convert a (normalized) pattern of any kind into a regular expression.
    globsuffix is appended to the regexp of globs.'''
    if not pat:
        return ''
    if kind == 're':
        return pat
    if kind in ('path', 'relpath'):

    glob:pattern   # non-rooted glob
    rootglob:pat   # rooted glob (same root as ^ in regexps)
    pattern        # pattern of the current default type

    if sourceinfo is set, returns a list of tuples:
    (pattern, lineno, originalline). This is useful to debug ignore patterns.
    '''

    syntaxes = {
        're': 'relre:',
        'regexp': 'relre:',
        'glob': 'relglob:',

42329:c7652f7440d9

    util,
)
from .utils import (
    stringutil,
)

try:
    from . import rustext
    rustext.__name__  # force actual import (see hgdemandimport)
except ImportError:
    rustext = None

allpatternkinds = ('re', 'glob', 'path', 'relglob', 'relpath', 'relre',
                   'rootglob',
                   'listfile', 'listfile0', 'set', 'include', 'subinclude',
                   'rootfilesin')

        else:
            res += escape(c, c)
    return res

def _regex(kind, pat, globsuffix):
    '''Convert a (normalized) pattern of any kind into a
    regular expression.
    globsuffix is appended to the regexp of globs.'''

    if rustext is not None:
        try:
            return rustext.filepatterns.build_single_regex(
                kind,
                pat,
                globsuffix
            )
        except rustext.filepatterns.PatternError:
            raise error.ProgrammingError(
                'not a regex pattern: %s:%s' % (kind, pat)
            )

    if not pat:
        return ''
    if kind == 're':
        return pat
    if kind in ('path', 'relpath'):

    glob:pattern   # non-rooted glob
    rootglob:pat   # rooted glob (same root as ^ in regexps)
    pattern        # pattern of the current default type

    if sourceinfo is set, returns a list of tuples:
    (pattern, lineno, originalline).
    This is useful to debug ignore patterns.
    '''

    if rustext is not None:
        result, warnings = rustext.filepatterns.read_pattern_file(
            filepath,
            bool(warn),
            sourceinfo,
        )

        for warning_params in warnings:
            # Can't be easily emitted from Rust, because it would require
            # a mechanism for both gettext and calling the `warn` function.
            warn(_("%s: ignoring invalid syntax '%s'\n") % warning_params)

        return result

    syntaxes = {
        're': 'relre:',
        'regexp': 'relre:',
        'glob': 'relglob:',