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phorge-phorge/resources/sql/autopatches/20160616.repo.01.oldref.sql
epriestley 1c63ac6a3a When a ref is moved or deleted, put it on a list; later, check for reachability
Summary:
Ref T9028. This allows us to detect when commits are unreachable:

  - When a ref (tag, branch, etc) is moved or deleted, store the old thing it pointed at in a list.
  - After discovery, go through the list and check if all the stuff on it is still reachable.
  - If something isn't, try to follow its ancestors back until we find something that is reachable.
  - Then, mark everything we found as unreachable.
  - Finally, rebuild the repository summary table to correct the commit count.

Test Plan:
  - Deleted a ref, ran `pull` + `refs`, saw oldref in database.
  - Ran `discover`, saw it process the oldref, mark the unreachable commit, and update the summary table.
  - Visited commit page, saw it properly marked.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9028

Differential Revision: https://secure.phabricator.com/D16133
2016-06-16 11:21:38 -07:00

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300 B
SQL

CREATE TABLE {$NAMESPACE}_repository.repository_oldref (
id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
repositoryPHID VARBINARY(64) NOT NULL,
commitIdentifier VARCHAR(40) NOT NULL COLLATE {$COLLATE_TEXT},
KEY `key_repository` (repositoryPHID)
) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};