gitolite/doc/triggers.mkd

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# gitolite triggers
## intro and sample rc excerpt
Gitolite fires off external commands at 7 different times. The [rc][] file
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specifies what commands to run at each trigger point, but for illustration,
here's an excerpt:
%RC = (
<...several lines later...>
# comment out or uncomment as needed
# these will run in sequence after post-update
POST_COMPILE =>
[
'post-compile/ssh-authkeys',
'post-compile/update-git-configs',
'post-compile/update-gitweb-access-list',
'post-compile/update-git-daemon-access-list',
],
# comment out or uncomment as needed
# these will run in sequence after a new wild repo is created
POST_CREATE =>
[
'post-compile/update-git-configs',
'post-compile/update-gitweb-access-list',
'post-compile/update-git-daemon-access-list',
],
(As you can see, post-create runs 3 programs that also run from post-compile.
This is perfectly fine, by the way)
## manually firing triggers
...from the server command line is easy. For example:
gitolite trigger POST_COMPILE
However if the triggered code depends on arguments (see next section) this
won't work. (The `POST_COMPILE` trigger programs all just happen to not
require any arguments, so it works).
## common arguments
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Triggers receive the following arguments:
1. any arguments mentioned in the rc file (for an example, see the renice
command in the PRE_GIT trigger sequence),
2. the name of the trigger as a string (example, `"POST_COMPILE"`), so you
can call the same program from multiple triggers and it can know where it
was called from,
3. followed by zero or more arguments specific to the trigger, as given in
the next section.
## trigger-specific arguments and other details
Here are the **rest of** the arguments for each trigger, plus a brief
description of when the trigger runs:
* `ACCESS_1` runs after the first access check. Arguments:
* repo
* user
* 'R' or 'W'
* 'any'
* result: this is the result of the access() function. If it contains
the uppercase word "DENIED", the access was rejected. Otherwise
result contains the refex that caused the access to succeed.
* `ACCESS_2` runs after the second access check, in the update hook.
Arguments:
* repo
* user
* any of W, +, C, D, WM, +M, CM, DM
* the ref being updated (e.g., 'refs/heads/master')
* result (see above)
* `PRE_GIT` and `POST_GIT` run just before and after the git command.
Arguments:
* repo
* user
* 'R' or 'W'
* 'any'
* the git command ('git-receive-pack', 'git-upload-pack', or
'git-upload-archive') being invoked.
* `PRE_CREATE` and `POST_CREATE` run just before and after a new "[wild][]"
repo is created by user action. Arguments:
* repo
* user
* `POST_COMPILE` runs after an admin push has successfully "compiled" the
config file. By default, the next thing is to update the ssh authkeys
file, then all the 'git-config's, gitweb access, and daemon access.
No arguments.