display suid bit in web ui

Related: https://pagure.io/koji/issue/616

Makefile

@@ -66,7 +66,7 @@ git-clean:
 
 test:
 	coverage erase
-	PYTHONPATH=hub/.:plugins/hub/.:plugins/builder/.:plugins/cli/.:cli/. coverage run \
+	PYTHONPATH=hub/.:plugins/hub/.:plugins/builder/.:plugins/cli/.:cli/.:www/lib coverage run \
 	    --source . /usr/bin/nosetests
 	coverage report
 	coverage html

tests/test_www/test_util.py

@@ -0,0 +1,18 @@
+import unittest
+
+from kojiweb.util import formatMode
+
+class TestFormatMode(unittest.TestCase):
+    def test_format_mode(self):
+        formats = (
+            ('drwxrwxr-x', 0x41fd), # dir
+            ('-rw-------', 0x8180), # reg. file
+            ('crw--w----', 0x2190), # /dev/tty0
+            ('brw-rw----', 0x61b0), # /dev/sda
+            ('lrwxrwxrwx', 0xa1ff), # symlink
+            ('srwxr-xr-x', 0xc1ed), # socket
+            ('-rwsrwsr--', 0x8db4), # suid
+        )
+
+        for s, mode in formats:
+            self.assertEqual(formatMode(mode), s)

www/lib/kojiweb/util.py

@@ -459,6 +459,11 @@ def formatMode(mode):
             else:
                 result += '-'
 
+    if mode & stat.S_ISUID:
+        result = result[:3] + 's' + result[4:]
+    if mode & stat.S_ISGID:
+        result = result[:6] + 's' + result[7:]
+
     return result
 
 def rowToggle(template):