Sort the redirects list so the output is consistent from run to run.

PiperOrigin-RevId: 208731275

1 files changed, 9 insertions, 6 deletions

diff --git a/tensorflow/tools/docs/generate_lib.py b/tensorflow/tools/docs/generate_lib.py
index b9c418db1e..9387042224 100644
--- a/tensorflow/tools/docs/generate_lib.py
+++ b/tensorflow/tools/docs/generate_lib.py
@@ -97,7 +97,7 @@ def write_docs(output_dir,
   symbol_to_file = {}
 
   # Collect redirects for an api _redirects.yaml file.
-  redirects = ['redirects:\n']
+  redirects = []
 
   # Parse and write Markdown pages, resolving cross-links (@{symbol}).
   for full_name, py_object in six.iteritems(parser_config.index):
@@ -166,17 +166,20 @@ def write_docs(output_dir,
         continue
 
       duplicates = [item for item in duplicates if item != full_name]
-      template = ('- from: /{}\n'
-                  '  to: /{}\n')
+
       for dup in duplicates:
         from_path = os.path.join(site_api_path, dup.replace('.', '/'))
         to_path = os.path.join(site_api_path, full_name.replace('.', '/'))
-        redirects.append(
-            template.format(from_path, to_path))
+        redirects.append((from_path, to_path))
 
-  if site_api_path:
+  if site_api_path and redirects:
+    redirects = sorted(redirects)
+    template = ('- from: /{}\n'
+                '  to: /{}\n')
+    redirects = [template.format(f, t) for f, t in redirects]
     api_redirects_path = os.path.join(output_dir, '_redirects.yaml')
     with open(api_redirects_path, 'w') as redirect_file:
+      redirect_file.write('redirects:\n')
       redirect_file.write(''.join(redirects))
 
   if yaml_toc: