Commit def1b66b authored by Cindy Pallares's avatar Cindy Pallares

Add guide to custom global hooks

parent 19115210
# Custom Git Hooks # Custom server-side Git hooks
> **Note:** Custom Git hooks must be configured on the filesystem of the GitLab NOTE: **Note:**
Custom Git hooks must be configured on the filesystem of the GitLab
server. Only GitLab server administrators will be able to complete these tasks. server. Only GitLab server administrators will be able to complete these tasks.
Please explore [webhooks] and [CI] as an option if you do not Please explore [webhooks] and [CI] as an option if you do not
have filesystem access. For a user configurable Git hook interface, see have filesystem access. For a user configurable Git hook interface, see
...@@ -14,15 +15,14 @@ See [Git SCM Server-Side Hooks][hooks] for more information about each hook type ...@@ -14,15 +15,14 @@ See [Git SCM Server-Side Hooks][hooks] for more information about each hook type
As of gitlab-shell version 2.2.0 (which requires GitLab 7.5+), GitLab As of gitlab-shell version 2.2.0 (which requires GitLab 7.5+), GitLab
administrators can add custom git hooks to any GitLab project. administrators can add custom git hooks to any GitLab project.
## Setup ## Create a custom Git hook for a repository
Normally, Git hooks are placed in the repository or project's `hooks` directory. Server-side Git hooks are typically placed in the repository's `hooks`
GitLab creates a symlink from each project's `hooks` directory to the subdirectory. In GitLab, hook directories are are symlinked to the gitlab-shell
gitlab-shell `hooks` directory for ease of maintenance between gitlab-shell `hooks` directory for ease of maintenance between gitlab-shell upgrades.
upgrades. As such, custom hooks are implemented a little differently. Behavior Custom hooks are implemented differently, but the behavior is exactly the same
is exactly the same once the hook is created, though. once the hook is created. Follow the steps below to set up a custom hook for a
repository:
Follow the steps below to set up a custom hook:
1. Pick a project that needs a custom Git hook. 1. Pick a project that needs a custom Git hook.
1. On the GitLab server, navigate to the project's repository directory. 1. On the GitLab server, navigate to the project's repository directory.
...@@ -42,33 +42,56 @@ Follow the steps below to set up a custom hook: ...@@ -42,33 +42,56 @@ Follow the steps below to set up a custom hook:
That's it! Assuming the hook code is properly implemented the hook will fire That's it! Assuming the hook code is properly implemented the hook will fire
as appropriate. as appropriate.
## Set a global Git hook for all repositories
To create a Git hook that applies to all of your repositories in
your instance, set a global Git hook. Since all the repositories' `hooks`
directories are symlinked to gitlab-shell's `hooks` directory, adding any hook
to the gitlab-shell `hooks` directory will also apply it to all repositories. Follow
the steps below to properly set up a custom hook all for repositories:
1. On the GitLab server, navigate to the configured custom hook directory. The
default is in the gitlab-shell directory. The gitlab-shell `hook` directory
for an installation from source the path is usually
`/home/git/gitlab-shell/hooks`. For Omnibus installs the path is usually
`/opt/gitlab/embedded/service/gitlab-shell/hooks`.
To look in a different directory for the global custom hooks,
set `custom_hooks_dir` in the gitlab-shell config. For
Omnibus installations, this can be set in `gitlab.rb`; and in source
installations, this can be set in `gitlab-shell/config.yml`.
1. Create a new directory in this location. Depending on your hook, it will be
either a `pre-receive.d`, `post-receive.d`, or `update.d` directory.
1. Inside this new directory, add your hook. Hooks can be
in any language. Ensure the 'shebang' at the top properly reflects the language
type. For example, if the script is in Ruby the shebang will probably be
`#!/usr/bin/env ruby`.
1. Make the hook file executable and make sure it's owned by Git.
Now test the hook to see that it's functioning properly.
## Chained hooks support ## Chained hooks support
> [Introduced][93] in GitLab Shell 4.1.0 and GitLab 8.15. > [Introduced][93] in GitLab Shell 4.1.0 and GitLab 8.15.
Hooks can be also placed in `hooks/<hook_name>.d` (global) or Hooks can be also global or be set per project directories and support a chained
`custom_hooks/<hook_name>.d` (per project) directories supporting chained
execution of the hooks. execution of the hooks.
NOTE: **Note:** `<hook_name>.d` would need to be either `pre-receive.d`, NOTE: **Note:**
`<hook_name>.d` would need to be either `pre-receive.d`,
`post-receive.d`, or `update.d` to work properly. Any other names will be ignored. `post-receive.d`, or `update.d` to work properly. Any other names will be ignored.
To look in a different directory for the global custom hooks (those in NOTE: **Note:**
`hooks/<hook_name.d>`), set `custom_hooks_dir` in gitlab-shell config. For Files in `.d` directories need to be executable and not match the backup file
Omnibus installations, this can be set in `gitlab.rb`; and in source pattern (`*~`).
installations, this can be set in `gitlab-shell/config.yml`.
The hooks are searched and executed in this order: The hooks are searched and executed in this order:
1. `gitlab-shell/hooks` directory as known to Gitaly 1. `gitlab-shell/hooks` directory as known to Gitaly
1. `<project>.git/hooks/<hook_name>` - executed by `git` itself, this is `gitlab-shell/hooks/<hook_name>` 1. `<project>.git/hooks/<hook_name>` - executed by `git` itself, this is symlinked to `gitlab-shell/hooks/<hook_name>`
1. `<project>.git/custom_hooks/<hook_name>` - per project hook (this is already existing behavior) 1. `<project>.git/custom_hooks/<hook_name>` - per project hook (this is already existing behavior)
1. `<project>.git/custom_hooks/<hook_name>.d/*` - per project hooks 1. `<project>.git/custom_hooks/<hook_name>.d/*` - per project hooks
1. `<project>.git/hooks/<hook_name>.d/*` OR `<custom_hooks_dir>/<hook_name.d>/*` - global hooks: all executable files (minus editor backup files) 1. `<project>.git/hooks/<hook_name>.d/*` OR `<custom_hooks_dir>/<hook_name.d>/*` - global hooks: all executable files (minus editor backup files)
Files in `.d` directories need to be executable and not match the backup file
pattern (`*~`).
The hooks of the same type are executed in order and execution stops on the The hooks of the same type are executed in order and execution stops on the
first script exiting with a non-zero value. first script exiting with a non-zero value.
......
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