diff mercurial/match.py @ 42346:38d85ec06552

match: drop unnecessary adding of '' to set of dirs

This breaks some tests for "rootfilesin:" in a pattern matcher even
more, but that just shows how broken that case is.

Differential Revision: https://phab.mercurial-scm.org/D6406

--- a/mercurial/match.py	Mon Apr 22 22:43:00 2019 -0700
+++ b/mercurial/match.py	Wed Apr 24 09:39:40 2019 -0700
@@ -533,7 +533,7 @@
 
     @propertycache
     def _dirs(self):
-        return set(util.dirs(self._fileset)) | {''}
+        return set(util.dirs(self._fileset))
 
     def visitdir(self, dir):
         dir = normalizerootdir(dir, 'visitdir')
@@ -691,7 +691,7 @@
 
     @propertycache
     def _dirs(self):
-        return set(util.dirs(self._fileset)) | {''}
+        return set(util.dirs(self._fileset))
 
     def visitdir(self, dir):
         dir = normalizerootdir(dir, 'visitdir')
@@ -1007,7 +1007,7 @@
 
     @propertycache
     def _pathdirs(self):
-        return set(util.finddirs(self._path)) | {''}
+        return set(util.finddirs(self._path))
 
     def visitdir(self, dir):
         if dir == self._path: