1 files changed, 17 insertions, 0 deletions
diff --git a/cachedir b/cachedir
index 1067d3d..e2c65bc 100755
--- a/cachedir
+++ b/cachedir
@@ -17,6 +17,7 @@
 
 import cliapp
 import os
+import sys
 
 
 __version__ = '0.0'
@@ -43,6 +44,22 @@ class Cachedir(cliapp.Application):
         for dirname in args:
             os.remove(self._join(dirname))
 
+    def cmd_iscache(self, args):
+        '''Are all named directories tagged?
+        
+        There is no output, but exit code is 0 if all named directories
+        are tagged as cache directories.
+        
+        '''
+
+        errors = False
+        for dirname in args:
+            if not os.path.exists(self._join(dirname)):
+                sys.stderr.write('%s is not a cache directory\n' % dirname)
+                errors = True
+        if errors:
+            sys.exit(1)
+
     def cmd_find(self, args):
         '''Find cache directories under the given directories.'''