dirstate.statwalk: explicitly test for ignored directories

This removes a hack where we appended '/' to a dirname so that:
- it would not appear on the "dc" dict
- it would always be matched by the match function

This was a contorted way of checking if the directory was matched by
some hgignore pattern, and it would still fail with some uses of
--include/--exclude patterns.

Things would still work fine if we removed the check altogether and
just appended things to "work" directly, but then we would end up
walking ignored directories too, which could be quite a bit of work.

This allows further simplification of the match function returned by
util._matcher, and fixes walking the working directory with a
--include pattern that matches only the end of a name.

mercurial/dirstate.py

@@ -387,7 +387,10 b' class dirstate(object):'
                 return False
             return match(file_)
 
-        if ignored: imatch = match
+        ignore = self.ignore
+        if ignored:
+            imatch = match
+            ignore = util.never
 
         # self.root may end with a path separator when self.root == '/'
         common_prefix_len = len(self.root)
@@ -420,8 +423,7 b' class dirstate(object):'
                     # don't trip over symlinks
                     st = os.lstat(p)
                     if stat.S_ISDIR(st.st_mode):
-                        ds = util.pconvert(os.path.join(nd, f +'/'))
-                        if imatch(ds):
+                        if not ignore(p):
                             work.append(p)
                         if imatch(np) and np in dc:
                             yield 'm', np, st

mercurial/util.py

@@ -509,8 +509,7 b' def _matcher(canonroot, cwd, names, inc,'
         excmatch = matchfn(exckinds, '(?:/|$)')
 
     return (roots,
-            lambda fn: (incmatch(fn) and not excmatch(fn) and
-                        (fn.endswith('/') or patmatch(fn))),
+            lambda fn: (incmatch(fn) and not excmatch(fn) and patmatch(fn)),
             (inc or exc or anypats) and True)
 
 def system(cmd, environ={}, cwd=None, onerr=None, errprefix=None):

tests/test-walk.out

@@ -73,28 +73,28 b' f mammals/Procyonidae/raccoon Procy'
 f  mammals/skunk                   skunk
 
 hg debugwalk -I *k
-m  mammals/skunk  skunk
+f  mammals/skunk  skunk
 
 hg debugwalk -I glob:*k
-m  mammals/skunk  skunk
+f  mammals/skunk  skunk
 
 hg debugwalk -I relglob:*k
+f  beans/black    ../beans/black
 f  fenugreek      ../fenugreek
-m  beans/black    ../beans/black
-m  mammals/skunk  skunk
+f  mammals/skunk  skunk
 
 hg debugwalk -I relglob:*k .
 f  mammals/skunk  skunk
 
 hg debugwalk -I re:.*k$
+f  beans/black    ../beans/black
 f  fenugreek      ../fenugreek
-m  beans/black    ../beans/black
-m  mammals/skunk  skunk
+f  mammals/skunk  skunk
 
 hg debugwalk -I relre:.*k$
+f  beans/black    ../beans/black
 f  fenugreek      ../fenugreek
-m  beans/black    ../beans/black
-m  mammals/skunk  skunk
+f  mammals/skunk  skunk
 
 hg debugwalk -I path:beans
 f  beans/black     ../beans/black