Verify that the file exists and is in git.

Author: georgebrock

git-browse

@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 
+import sys
 import argparse
 import textwrap
 
@@ -55,6 +56,13 @@ parser.add_argument('file',
                     help='the path to the file you want to examine')
 args = parser.parse_args()
 
-if git.verify_revision(args.rev):
-    browser = GitBrowser(args.file, args.rev)
-    browser.run()
+if not git.verify_revision(args.rev):
+    sys.exit(1)
+
+if not git.verify_file(args.file):
+    sys.exit("'%s' either does not exist, or is not tracked by git" % (
+        args.file
+    ))
+
+browser = GitBrowser(args.file, args.rev)
+browser.run()

gitbrowse/git.py

@@ -287,3 +287,13 @@ def verify_revision(rev):
         rev
     ))
     return status == 0
+
+
+def verify_file(path):
+    """
+    Verifies that a given file is tracked by Git and returns true or false
+    accordingly.
+    """
+    p = os.popen('git ls-files -- %s' % path)
+    matching_files = p.readlines()
+    return len(matching_files) > 0