Add oneoff message to diagnose_bloat.py

prints a message in diagnose_bloat.py to help users upload a oneoff for
sharing. Also updates the oneoff message in libsupersize/console.py to
use the new urls for the viewer.

Change-Id: I92d16460826488b4a55a9bb56d9200264ab0b476
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2485772
Commit-Queue: Mohamed Heikal <mheikal@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#818879}

tools/binary_size/diagnose_bloat.py

@@ -502,9 +502,21 @@ class _DiffArchiveManager(object):
     logging.info('Creating .sizediff')
     _RunCmd(supersize_cmd)
 
-    logging.info('Report created: %s', os.path.relpath(report_path))
-    logging.info('View it here: '
-                 'https://chrome-supersize.firebaseapp.com/viewer.html')
+    unique_name = '{}_{}.sizediff'.format(before.rev, after.rev)
+    msg = (
+        '\n=====================\n'
+        'Saved locally to {local}. To view, upload to '
+        'https://chrome-supersize.firebaseapp.com/viewer.html.\n'
+        'To share, run:\n'
+        '> gsutil.py cp -a public-read {local} '
+        'gs://chrome-supersize/oneoffs/{unique_name}\n\n'
+        'Then view it at https://chrome-supersize.firebaseapp.com/viewer.html'
+        '?load_url=https://storage.googleapis.com/chrome-supersize/oneoffs/'
+        '{unique_name}'
+        '\n=====================\n')
+    msg = msg.format(local=os.path.relpath(report_path),
+                     unique_name=unique_name)
+    logging.info(msg)
 
   def Summarize(self):
     path = os.path.join(self.archive_dir, 'last_diff_summary.txt')

tools/binary_size/libsupersize/console.py

@@ -166,10 +166,10 @@ class _Session(object):
     shortname = os.path.basename(os.path.normpath(to_file))
     msg = (
         'Saved locally to {local}. To share, run:\n'
-        '> gsutil.py cp {local} gs://chrome-supersize/oneoffs && gsutil.py -m '
-        'acl ch -u AllUsers:R gs://chrome-supersize/oneoffs/{shortname}\n'
-        '  Then view it at https://storage.googleapis.com/chrome-supersize'
-        '/viewer.html?load_url=oneoffs%2F{shortname}')
+        '> gsutil.py cp -a public-read {local} gs://chrome-supersize/oneoffs\n'
+        '  Then view it at https://chrome-supersize.firebaseapp.com/viewer.html'
+        '?load_url=https://storage.googleapis.com/chrome-supersize/oneoffs/'
+        '{shortname}')
     print(msg.format(local=to_file, shortname=shortname))
 
   def _SaveDeltaSizeInfo(self, size_info, to_file=None):