repo-review: Trim trailing slashes to avoid errors

Bug: b/170858163
Change-Id: I3de16ad77f0436af97eae26816fc99493fba30c3

tools/repo_pull/gerrit.py

@@ -346,6 +346,11 @@ def find_gerrit_name():
 
     raise ValueError('cannot find gerrit URL from manifest')
 
+def normalize_gerrit_name(gerrit):
+    """Strip the trailing slashes because Gerrit will return 404 when there are
+    redundant trailing slashes."""
+    return gerrit.rstrip('/')
+
 def _parse_args():
     """Parse command line options."""
     parser = argparse.ArgumentParser()
@@ -361,12 +366,13 @@ def _parse_args():
 
     return parser.parse_args()
 
-
 def main():
     """Main function"""
     args = _parse_args()
 
-    if not args.gerrit:
+    if args.gerrit:
+        args.gerrit = normalize_gerrit_name(args.gerrit)
+    else:
         try:
             args.gerrit = find_gerrit_name()
         # pylint: disable=bare-except

tools/repo_pull/repo_patch.py

@@ -26,7 +26,8 @@ import os
 import sys
 
 from gerrit import (
-    create_url_opener_from_args, find_gerrit_name, query_change_lists, get_patch
+    create_url_opener_from_args, find_gerrit_name, normalize_gerrit_name,
+    query_change_lists, get_patch
 )
 
 def _parse_args():
@@ -49,7 +50,9 @@ def main():
     """Main function"""
     args = _parse_args()
 
-    if not args.gerrit:
+    if args.gerrit:
+        args.gerrit = normalize_gerrit_name(args.gerrit)
+    else:
         try:
             args.gerrit = find_gerrit_name()
         # pylint: disable=bare-except

tools/repo_pull/repo_pull.py

@@ -32,7 +32,8 @@ import sys
 import xml.dom.minidom
 
 from gerrit import (
-    create_url_opener_from_args, find_gerrit_name, query_change_lists, run
+    create_url_opener_from_args, find_gerrit_name, normalize_gerrit_name,
+    query_change_lists, run
 )
 from subprocess import PIPE
 
@@ -414,7 +415,9 @@ def main():
     """Main function"""
     args = _parse_args()
 
-    if not args.gerrit:
+    if args.gerrit:
+        args.gerrit = normalize_gerrit_name(args.gerrit)
+    else:
         try:
             args.gerrit = find_gerrit_name()
         # pylint: disable=bare-except

tools/repo_pull/repo_review.py

@@ -32,8 +32,8 @@ except ImportError:
 
 from gerrit import (
     abandon, add_reviewers, create_url_opener_from_args, delete_reviewer,
-    delete_topic, find_gerrit_name, query_change_lists, restore, set_hashtags,
-    set_review, set_topic, submit
+    delete_topic, find_gerrit_name, normalize_gerrit_name, query_change_lists,
+    restore, set_hashtags, set_review, set_topic, submit
 )
 
 
@@ -191,7 +191,9 @@ def main():
     # Parse and check the command line options
     args = _parse_args()
 
-    if not args.gerrit:
+    if args.gerrit:
+        args.gerrit = normalize_gerrit_name(args.gerrit)
+    else:
         try:
             args.gerrit = find_gerrit_name()
         # pylint: disable=bare-except