Summary:
Fixes T3416. Fixes T1733.
- Adds a flag to the commit table showing whether or not we have parsed it.
- The flag is set to `0` initially when the commit is discovered.
- The flag is set to `1` when the changes are parsed.
- The UI can now use the flag to distinguish between "empty commit" and "commit which we haven't imported changes for yet".
- Simplify rendering code a little bit.
- Fix an issue with the Message parser for empty commits.
- There's a key on the flag so we can do `SELECT * FROM repository_commit WHERE repositoryID = %d AND importStatus = 0 LIMIT 1` soon, to determine if a repository is fully imported or not. This will let us improve the UI (Ref T776, Ref T3217).
Test Plan:
- Ran `bin/storage upgrade -f`.
- Created an empty commit.
- Without the daemons running, ran `bin/repository pull GTEST` and `bin/repository discover GTEST`.
- Viewed web UI to get the first screenshot ("Still Importing...").
- Ran the message and change steps with `scripts/repository/reparse.php`.
- Viewed web UI to get the second screenshot ("Empty Commit").
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T776, T1733, T3416, T3217
Differential Revision: https://secure.phabricator.com/D7428
