treemanifest: visit directory 'foo' when given e.g. '-X foo/ba?'

For globs like 'foo/ba?', match._roots() will return 'foo'. Since
visitdir(), excludes directories in the excluded roots, it would skip
the entire foo directory. This is incorrect, since 'foo/ba?' doesn't
mean that everything in foo/ should be exluded. Note that visitdir()
is called only from the treemanifest class, so this only affects tree
manifests. Fix by adding roots to the set of excluded roots only if
there are no excluded patterns.

Since 'glob' is the default pattern type for globs, we also need to
update some -X patterns in the tests to be of 'path' type to take
advantage of the visitdir tricks. For consistency, also update the -I
patterns.

It seems a little unfortunate that 'foo' in 'hg files -X foo' is
considered a pattern because of the implied 'glob' type, but improving
that is left for another day.

mercurial/match.py

@@ -129,8 +129,9 b' class match(object):'
             kindpats = self._normalize(exclude, 'glob', root, cwd, auditor)
             self.excludepat, em = _buildmatch(ctx, kindpats, '(?:/|$)',
                                               listsubrepos, root)
-            self._excluderoots.update(_roots(kindpats))
-            self._excluderoots.discard('.')
+            if not _anypats(kindpats):
+                self._excluderoots.update(_roots(kindpats))
+                self._excluderoots.discard('.')
             matchfns.append(lambda f: not em(f))
         if exact:
             if isinstance(patterns, list):

tests/test-treemanifest.t

@@ -322,6 +322,13 b' Test files from the root.'
   c.txt
   d.py
 
+Excludes with a glob should not exclude everything from the glob's root
+
+  $ hg files -r . -X 'b/fo?' b
+  b/bar/fruits.txt
+  b/bar/orange/fly/gnat.py
+  b/bar/orange/fly/housefly.txt
+
 Test files for a subdirectory.
 
   $ mv .hg/store/meta/a oldmf
@@ -337,7 +344,7 b' Test files with just includes and exclud'
   $ mv .hg/store/meta/a oldmf
   $ mv .hg/store/meta/b/bar/orange/fly oldmf2
   $ mv .hg/store/meta/b/foo/apple/bees oldmf3
-  $ hg files -r . -I b/bar -X b/bar/orange/fly -I b/foo -X b/foo/apple/bees
+  $ hg files -r . -I path:b/bar -X path:b/bar/orange/fly -I path:b/foo -X path:b/foo/apple/bees
   b/bar/fruits.txt (glob)
   $ mv oldmf .hg/store/meta/a
   $ mv oldmf2 .hg/store/meta/b/bar/orange/fly
@@ -347,7 +354,7 b' Test files for a subdirectory, excluding'
 
   $ mv .hg/store/meta/a oldmf
   $ mv .hg/store/meta/b/foo oldmf2
-  $ hg files -r . -X b/foo b
+  $ hg files -r . -X path:b/foo b
   b/bar/fruits.txt (glob)
   b/bar/orange/fly/gnat.py (glob)
   b/bar/orange/fly/housefly.txt (glob)
@@ -359,7 +366,7 b' including an unrelated directory.'
 
   $ mv .hg/store/meta/a oldmf
   $ mv .hg/store/meta/b/foo oldmf2
-  $ hg files -r . -I b/bar/orange -I a b
+  $ hg files -r . -I path:b/bar/orange -I path:a b
   b/bar/orange/fly/gnat.py (glob)
   b/bar/orange/fly/housefly.txt (glob)
   $ mv oldmf .hg/store/meta/a
@@ -371,7 +378,7 b' within that.'
   $ mv .hg/store/meta/a oldmf
   $ mv .hg/store/meta/b/foo oldmf2
   $ mv .hg/store/meta/b/bar/orange oldmf3
-  $ hg files -r . glob:**.txt -I b/bar -X b/bar/orange
+  $ hg files -r . glob:**.txt -I path:b/bar -X path:b/bar/orange
   b/bar/fruits.txt (glob)
   $ mv oldmf .hg/store/meta/a
   $ mv oldmf2 .hg/store/meta/b/foo