mercurial/match.py

35658:a1222a8cc93b

    def __repr__(self):
        return ('<exactmatcher files=%r>' % self._files)

class differencematcher(basematcher):
    '''Composes two matchers by matching if the first matches and the second
    does not. Well, almost... If the user provides a pattern like "-X foo foo",
    Mercurial actually does match "foo" against that. That's because exact
    matches are treated specially. So, since this differencematcher is used for
    excludes, it needs to special-case exact matching.

    The second matcher's non-matching-attributes (root, cwd, bad, explicitdir,
    traversedir) are ignored.

    TODO: If we want to keep the behavior described above for exact matches, we
    should consider instead treating the above case something like this:
    union(exact(foo), difference(pattern(foo), include(foo)))
    '''
    def __init__(self, m1, m2):
        super(differencematcher, self).__init__(m1._root, m1._cwd)
        self._m1 = m1
        self._m2 = m2
        self.bad = m1.bad
        self.explicitdir = m1.explicitdir
        self.traversedir = m1.traversedir

    def matchfn(self, f):
        return self._m1(f) and (not self._m2(f) or self._m1.exact(f))

    @propertycache
    def _files(self):
        if self.isexact():
            return [f for f in self._m1.files() if self(f)]

        # because the "dir" in m1 may not be a file.
        return self._m1.files()

    def visitdir(self, dir):
        if self._m2.visitdir(dir) == 'all':
            # There's a bug here: If m1 matches file 'dir/file' and m2 excludes
            # 'dir' (recursively), we should still visit 'dir' due to the
            # exception we have for exact matches.
            return False
        return bool(self._m1.visitdir(dir))

    def isexact(self):
        return self._m1.isexact()

35659:821d8a5ab4ff

    def __repr__(self):
        return ('<exactmatcher files=%r>' % self._files)

class differencematcher(basematcher):
    '''Composes two matchers by matching if the first matches and the second
    does not.

    The second matcher's non-matching-attributes (root, cwd, bad, explicitdir,
    traversedir) are ignored.
    '''
    def __init__(self, m1, m2):
        super(differencematcher, self).__init__(m1._root, m1._cwd)
        self._m1 = m1
        self._m2 = m2
        self.bad = m1.bad
        self.explicitdir = m1.explicitdir
        self.traversedir = m1.traversedir

    def matchfn(self, f):
        return self._m1(f) and not self._m2(f)

    @propertycache
    def _files(self):
        if self.isexact():
            return [f for f in self._m1.files() if self(f)]

        # because the "dir" in m1 may not be a file.
        return self._m1.files()

    def visitdir(self, dir):
        if self._m2.visitdir(dir) == 'all':
            return False
        return bool(self._m1.visitdir(dir))

    def isexact(self):
        return self._m1.isexact()