Supported Hooks
===============

ref-update
----------

This is called when a ref update request is received by Gerrit. It allows a
request to be rejected before it is committed to the Gerrit repository. If
the script exits with non-zero return code the update will be rejected. Any
output from the script will be returned to the user, regardless of the return
code.

This hook is called synchronously so it is recommended that it not block. A
default timeout on the hook is set to 30 seconds to avoid "runaway" hooks using
up server threads.  See [`hooks.syncHookTimeout`][1] for configuration details.

```
  ref-update --project <project name> --refname <refname> --uploader <uploader> --oldrev <sha1> --newrev <sha1>
```

commit-received
---------------

This is called when a push request is received by Gerrit. It allows a push to be
rejected before it is committed to the Gerrit repository. If the script exits
with non-zero return code the push will be rejected. Any output from the script
will be returned to the user, regardless of the return code.

This hook is called synchronously so it is recommended that it not block. A
default timeout on the hook is set to 30 seconds to avoid "runaway" hooks using
up server threads.  See [`hooks.syncHookTimeout`][1] for configuration details.

```
  commit-received --project <project name> --refname <refname> --uploader <uploader> --oldrev <sha1> --newrev <sha1> --cmdref <refname>
```

patchset-created
----------------

Called whenever a patchset is created (this includes new changes and drafts).

```
  patchset-created --change <change id> --is-draft <boolean> --kind <change kind> --change-url <change url> --change-owner <change owner> --project <project name> --branch <branch> --topic <topic> --uploader <uploader> --commit <sha1> --patchset <patchset id>
```

The `--kind` parameter represents the kind of change uploaded. See documentation
of [`patchSet`][2] for details.

draft-published
---------------

Called whenever a draft change is published.

```
  draft-published --change <change id> --change-url <change url> --change-owner <change owner> --project <project name> --branch <branch> --topic <topic> --uploader <uploader> --commit <sha1> --patchset <patchset id>
```

comment-added
-------------

Called whenever a comment is added to a change.

```
  comment-added --change <change id> --is-draft <boolean> --change-url <change url> --change-owner <change owner> --project <project name> --branch <branch> --topic <topic> --author <comment author> --commit <commit> --comment <comment> [--<approval category id> <score> --<approval category id> <score> --<approval category id>-oldValue <score> ...]
```

change-merged
-------------

Called whenever a change has been merged.

```
  change-merged --change <change id> --change-url <change url> --change-owner <change owner> --project <project name> --branch <branch> --topic <topic> --submitter <submitter> --commit <sha1> --newrev <sha1>
```

change-abandoned
----------------

Called whenever a change has been abandoned.

```
  change-abandoned --change <change id> --change-url <change url> --change-owner <change owner> --project <project name> --branch <branch> --topic <topic> --abandoner <abandoner> --commit <sha1> --reason <reason>
```

change-restored
---------------

Called whenever a change has been restored.

```
  change-restored --change <change id> --change-url <change url> --change-owner <change owner> --project <project name> --branch <branch> --topic <topic> --restorer <restorer> --commit <sha1> --reason <reason>
```

ref-updated
-----------

Called whenever a ref has been updated.

```
  ref-updated --oldrev <old rev> --newrev <new rev> --refname <ref name> --project <project name> --submitter <submitter>
```

project-created
---------------

Called whenever a project has been created.

```
  project-created --project <project name> --head <head name>
```

reviewer-added
--------------

Called whenever a reviewer is added to a change.

```
  reviewer-added --change <change id> --change-url <change url> --change-owner <change owner> --project <project name> --branch <branch> --reviewer <reviewer>
```

reviewer-deleted
----------------

Called whenever a reviewer (with a vote) is removed from a change.

```
  reviewer-deleted --change <change id> --change-url <change url> --change-owner <change owner> --project <project name> --branch <branch> --reviewer <reviewer> [--<approval category id> <score> --<approval category id> <score> ...]
```

topic-changed
-------------

Called whenever a change's topic is changed from the Web UI or via the REST API.

```
  topic-changed --change <change id> --change-owner <change owner> --project <project name> --branch <branch> --changer <changer> --old-topic <old topic> --new-topic <new topic>
```

hashtags-changed
----------------

Called whenever hashtags are added to or removed from a change from the Web UI
or via the REST API.

```
  hashtags-changed --change <change id>  --change-owner <change owner> --project <project name> --branch <branch> --editor <editor> --added <hashtag> --removed <hashtag> --hashtag <hashtag>
```

The `--added` parameter may be passed multiple times, once for each
hashtag that was added to the change.

The `--removed` parameter may be passed multiple times, once for each
hashtag that was removed from the change.

The `--hashtag` parameter may be passed multiple times, once for each
hashtag remaining on the change after the add or remove operation has
been performed.

cla-signed
----------

Called whenever a user signs a contributor license agreement.

```
  cla-signed --submitter <submitter> --user-id <user_id> --cla-id <cla_id>
```

[1]: config.md#hooks.syncHookTimeout
[2]: ../../../Documentation/json.html#patchSet