Translate paths without double slash

If the path in `translate_paths` config ends with a slash, we would
create public path with double slash.

Fixes: https://pagure.io/pungi/issue/408
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>

pungi/paths.py

@@ -36,6 +36,8 @@ def translate_path(compose, path):
 
     for prefix, newvalue in mapping:
         prefix = os.path.normpath(prefix)
+        # Strip trailing slashes: the prefix has them stripped by `normpath`.
+        newvalue = newvalue.rstrip('/')
         if normpath.startswith(prefix):
             # We can't call os.path.normpath on result since it is not actually
             # a path - http:// would get changed to  http:/ and so on.

tests/test_notifier.py

@@ -39,6 +39,34 @@ class TestNotifier(unittest.TestCase):
                                     stdin_data=json.dumps(data),
                                     can_fail=True, return_stdout=False, workdir='/a/b')
 
+    @mock.patch('kobo.shortcuts.run')
+    def test_translates_path(self, run):
+        compose = mock.Mock(
+            compose_id='COMPOSE_ID',
+            paths=mock.Mock(
+                compose=mock.Mock(
+                    topdir=mock.Mock(return_value='/root/a/b')
+                )
+            ),
+            conf={
+                "translate_paths": [("/root/", "http://example.com/compose/")],
+            }
+        )
+
+        run.return_value = (0, None)
+
+        n = PungiNotifier('run-notify')
+        n.compose = compose
+        data = {'foo': 'bar', 'baz': 'quux'}
+        n.send('cmd', **data)
+
+        data['compose_id'] = 'COMPOSE_ID'
+        data['location'] = 'http://example.com/compose/a/b'
+        run.assert_called_once_with(('run-notify', 'cmd'),
+                                    stdin_data=json.dumps(data),
+                                    can_fail=True, return_stdout=False,
+                                    workdir='/root/a/b')
+
     @mock.patch('kobo.shortcuts.run')
     def test_does_not_run_without_config(self, run):
         n = PungiNotifier(None)