--- a/mercurial/match.py Fri Sep 03 12:58:51 2010 +0200
+++ b/mercurial/match.py Fri Sep 03 12:58:51 2010 +0200
@@ -110,6 +110,37 @@
def __init__(self, root, cwd):
match.__init__(self, root, cwd, [])
+class narrowmatcher(match):
+ """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 = narrowmatcher('sub', m1)
+ >>> bool(m2('a.txt'))
+ False
+ >>> bool(m2('b.txt'))
+ True
+ >>> bool(m2.matchfn('a.txt'))
+ False
+ >>> bool(m2.matchfn('b.txt'))
+ True
+ >>> m2.files()
+ ['b.txt']
+ >>> m2.exact('b.txt')
+ True
+ """
+
+ def __init__(self, path, matcher):
+ self._path = path
+ self._matcher = matcher
+
+ self._files = [f[len(path) + 1:] for f in matcher._files
+ if f.startswith(path + "/")]
+ self._anypats = matcher._anypats
+ self.matchfn = lambda fn: matcher.matchfn(self._path + "/" + fn)
+ self._fmap = set(self._files)
+
def patkind(pat):
return _patsplit(pat, None)[0]