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Supported Hooks

[TOC]

Synchronous Hooks

These hooks are invoked synchronously so it is recommended that they not block.

A default timeout on the hook is set to 30 seconds to avoid "runaway" hooks using up server threads. The timeout can be changed by setting hooks.syncHookTimeout.

ref-update

This is called when a ref update request (direct push, non-fastforward update, or ref deletion) is received by Gerrit. It allows a request to be rejected before it is committed to the Gerrit repository.

When multiple commits are pushed by direct push, this hook is called once with the --oldrev being the sha1 of the current branch tip, and --newrev being the sha1 of the commit that will be the new tip of the branch.

If the hook exits with non-zero return code the update will be rejected and any output will be returned to the user.

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

commit-received

This is called when a commit is received by Gerrit either by direct push or by push for review (to refs/for/branch). It allows a push to be rejected before a review is created, or before the branch is updated in case of a direct push. It is called once for each commit in the push.

If the hook exits with non-zero return code the push will be rejected. Any output from the hook will be returned to the user, regardless of the return code.

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

submit

This is called when a user attempts to submit a change. It allows the submit to be rejected.

If the hook exits with non-zero return code the submit will be rejected and the output from the hook will be returned to the user.

  submit --project <project name> --branch <branch> --submitter <submitter> --patchset <patchset id> --commit <sha1>

Asynchronous Hooks

These hooks are invoked asynchronously on a background thread.

patchset-created

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

New patchsets do not generate this event when created as a result of merging a change (see change-merged for this). Examples are:

  • Submitting a change
  • Merging a change
  • Closing a change by direct push to branch
  patchset-created --change <change id> --kind <change kind> --change-url <change url> --change-owner <change owner> --change-owner-username <username> --project <project name> --branch <branch> --topic <topic> --uploader <uploader> --uploader-username <username> --commit <sha1> --patchset <patchset id>

The --kind parameter represents the kind of change uploaded. See documentation of patchSet for details.

comment-added

Called whenever a comment is added to a change.

  comment-added --change <change id> --change-url <change url> --change-owner <change owner> --change-owner-username <username> --project <project name> --branch <branch> --topic <topic> --author <comment author> --author-username <username> --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> --change-owner-username <username> --project <project name> --branch <branch> --topic <topic> --submitter <submitter> --submitter-username <username> --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> --change-owner-username <username> --project <project name> --branch <branch> --topic <topic> --abandoner <abandoner> --abandoner-username <username> --commit <sha1> --reason <reason>

change-deleted

Called whenever a change has been deleted.

  change-deleted --change <change id> --change-url <change url> --change-owner <change owner> --project <project name> --branch <branch> --topic <topic> --deleter <deleter>

change-restored

Called whenever a change has been restored.

  change-restored --change <change id> --change-url <change url> --change-owner <change owner> --change-owner-username <username> --project <project name> --branch <branch> --topic <topic> --restorer <restorer> --restorer-username <username> --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> --submitter-username <username>

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> --change-owner-username <username> --project <project name> --branch <branch> --reviewer <reviewer> --reviewer-username <username>

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> --change-owner-username <username> --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> --change-owner-username <username> --project <project name> --branch <branch> --changer <changer> --changer-username <username> --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> --change-owner-username <username> --project <project name> --branch <branch> --editor <editor> --editor-username <username> --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>