If is_first_class_gcs file exists with contents '1'
- GCS hooks will download content and then overwrite the file with '0'
- First class GCS deps will download as necessary by checking the hash
file.
If there is no is_first_class_gcs file or its content is '0' for a GCS hook:
- Hook will run normally and, if content is downloaded, an is_first_class_gcs
file will be written with '0'
If there is no is_first_class_gcs file or its content is '0' for a first
class gcs dep:
- Content will be downloaded and is_first_class_gcs will be set to '1'
Verified locally with migrating and unmigrating a GCS hook.
TODO: update other GCS hook scripts in chromium/src to check migration
file.
Bug: b/324418194
Change-Id: Ida8541cb70839b86e99115bcabfc38bc87e40136
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/5368250
Reviewed-by: Joanna Wang <jojwang@chromium.org>
Commit-Queue: Stephanie Kim <kimstephanie@google.com>
