commit 9fb48832f41020795a07ac2b81f9a873f89e94bc
author Mike Nichols <mikenichols@chromium.org> Fri Jan 29 14:47:15 2021 -0700
committer Commit Bot <commit-bot@chromium.org> Tue Feb 02 16:11:13 2021 +0000
tree 6ec308747dd12e7d74769a69e5ac923e449e2194
parent 957e423cc8289a540ec909572f0a352768e1d613

repository: Downgrade repo version in identified branches.

Add the ability to downgrade the repo version for specifically targeted
branches, to work around the python upgrade that currently prevents
building older branches, specifically R79.

This also adds some high level debugging steps to help debugging repo
issues ongoing.

BUG=b:178532384
TEST=`run_test`

Change-Id: I7f55d8d02b261af15f43fc623bc10971b94a0d86
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/2660029
Commit-Queue: Mike Nichols <mikenichols@chromium.org>
Tested-by: Mike Nichols <mikenichols@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Dhanya Ganesh <dhanyaganesh@chromium.org>

scripts/cbuildbot_launch_unittest.py

diff --git a/scripts/cbuildbot_launch_unittest.py b/scripts/cbuildbot_launch_unittest.py
index bf8722b..2b74611 100644
--- a/scripts/cbuildbot_launch_unittest.py
+++ b/scripts/cbuildbot_launch_unittest.py
@@ -74,12 +74,14 @@
     """Test InitialCheckout with minimum settings."""
     mock_repo = mock.MagicMock()
     mock_repo.branch = 'branch'
+    argv = ['-r', '/root', 'config']
+    options = cbuildbot_launch.PreParseArguments(argv)
 
-    cbuildbot_launch.InitialCheckout(mock_repo)
+    cbuildbot_launch.InitialCheckout(mock_repo, options)
 
     self.assertEqual(mock_repo.mock_calls, [
         mock.call.PreLoad('/preload/chromeos'),
-        mock.call.Sync(detach=True),
+        mock.call.Sync(detach=True, downgrade_repo=False),
     ])
 
   def testConfigureGlobalEnvironment(self):
@@ -182,7 +184,7 @@
 
     # Ensure we checkout, as expected.
     self.assertEqual(mock_checkout.mock_calls,
-                     [mock.call(mock_repo)])
+                     [mock.call(mock_repo, options)])
 
     # Ensure we invoke cbuildbot, as expected.
     self.assertCommandCalled(
@@ -273,7 +275,7 @@
 
     # Ensure we checkout, as expected.
     self.assertEqual(mock_checkout.mock_calls,
-                     [mock.call(mock_repo)])
+                     [mock.call(mock_repo, options)])
 
     # Ensure we invoke cbuildbot, as expected.
     self.assertCommandCalled(