Themes: Use Cavalcade for Trac sync

[obenland]

Ever since the Theme Directory was updated two or three years ago, the script that syncs theme review results over to the directory has been running as a cronjob on my sandbox.

With the introduction of Cavalcade on w.org, this is no longer necessary and it should be moved over.

[Otto42]

Agreed. How often does the cron job run?

[obenland]

Agreed. How often does the cron job run?

Every 15 minutes

[obenland]

3336.diff​ is largely based off of the way the plugin directory jobs work.

@dd32 would you mind reviewing that diff?
Props go to @noisysocks, @bpayton, @tellyworth, and I.

[dd32]

Overall it looks fine to me.

• I'd probably reduce theme_directory_check_cronjobs to every 15m, it's not as crucial as on the plugin directory where there's many events per minute that need managing / catching if they fail.
• Rather than require_once WP_PLUGIN_DIR . '/theme-directory/lib/class-trac.php' I'd use require_once dirname( __DIR__ ) . '/lib/class-trac.php';

[obenland]

In 6289:

Themes: Use Cavalcade for Trac sync.

Props tellyworth, noisysocks, bpayton, obenland, dd32.
Fixes #3336.

[obenland]

In 6290:

Themes: Use proper namespace for WP_Query

See #3336.

[obenland]

In 6295:

Themes: Use get_post rather than WP_Query.

Makes this sync script actually work.

See #3336.