comparison mercurial/match.py @ 32460:f9445b528687

match: make subdirmatcher extend basematcher

This makes the subdirmatcher not depend on the main matcher, giving us
more freedom to modify that (specifically, it will lose it _always
field in a while).

32459:9f781f43f2ce

    def __repr__(self):
        return ('<matcher files=%r, patterns=%r, includes=%r, excludes=%r>' %
                (self._files, self.patternspat, self.includepat,
                 self.excludepat))

class subdirmatcher(matcher):
    """Adapt a matcher to work on a subdirectory only.

    The paths are remapped to remove/insert the path as needed:

    >>> m1 = match('root', '', ['a.txt', 'sub/b.txt'])

    >>> m2.abs('c.txt')
    'sub/c.txt'
    """

    def __init__(self, path, matcher):
        self._root = matcher._root
        self._cwd = matcher._cwd
        self._path = path
        self._matcher = matcher
        self._always = matcher._always

        self._files = [f[len(path) + 1:] for f in matcher._files
                       if f.startswith(path + "/")]

        # If the parent repo had a path to this subrepo and the matcher is
        # a prefix matcher, this submatcher always matches.
        if matcher.prefix():
            self._always = any(f == path for f in matcher._files)

        self._anypats = matcher._anypats
        # Some information is lost in the superclass's constructor, so we
        # can not accurately create the matching function for the subdirectory
        # from the inputs. Instead, we override matchfn() and visitdir() to
        # call the original matcher with the subdirectory path prepended.
        self.matchfn = lambda fn: matcher.matchfn(self._path + "/" + fn)

        if dir == '.':
            dir = self._path
        else:
            dir = self._path + "/" + dir
        return self._matcher.visitdir(dir)

def patkind(pattern, default=None):
    '''If pattern is 'kind:pat' with a known kind, return kind.'''
    return _patsplit(pattern, default)[0]

32460:f9445b528687

    def __repr__(self):
        return ('<matcher files=%r, patterns=%r, includes=%r, excludes=%r>' %
                (self._files, self.patternspat, self.includepat,
                 self.excludepat))

class subdirmatcher(basematcher):
    """Adapt a matcher to work on a subdirectory only.

    The paths are remapped to remove/insert the path as needed:

    >>> m1 = match('root', '', ['a.txt', 'sub/b.txt'])

    >>> m2.abs('c.txt')
    'sub/c.txt'
    """

    def __init__(self, path, matcher):
        super(subdirmatcher, self).__init__(matcher._root, matcher._cwd)
        self._path = path
        self._matcher = matcher
        self._always = matcher.always()

        self._files = [f[len(path) + 1:] for f in matcher._files
                       if f.startswith(path + "/")]

        # If the parent repo had a path to this subrepo and the matcher is
        # a prefix matcher, this submatcher always matches.
        if matcher.prefix():
            self._always = any(f == path for f in matcher._files)

        # Some information is lost in the superclass's constructor, so we
        # can not accurately create the matching function for the subdirectory
        # from the inputs. Instead, we override matchfn() and visitdir() to
        # call the original matcher with the subdirectory path prepended.
        self.matchfn = lambda fn: matcher.matchfn(self._path + "/" + fn)

        if dir == '.':
            dir = self._path
        else:
            dir = self._path + "/" + dir
        return self._matcher.visitdir(dir)

    def always(self):
        return self._always

    def anypats(self):
        return self._matcher.anypats()

def patkind(pattern, default=None):
    '''If pattern is 'kind:pat' with a known kind, return kind.'''
    return _patsplit(pattern, default)[0]