blob: c7773272cd94efdeccc0500a63c8c87d215aeea2 [file] [log] [blame]
= Gerrit Code Review - Building plugins
From build process perspective there are three types of plugins:
* Maven driven
* Bazel tree driven
* Bazel standalone
These types can be combined: if both files in plugin's root directory exist:
* `pom.xml`
the plugin can be built with both Bazel and Maven.
== Maven driven build
If plugin contains `pom.xml` file, it can be built with Maven as usually:
mvn clean package
Exceptions from the rule above:
=== Exception 1:
Plugin's `pom.xml` references snapshot version of plugin API:
`2.8-SNAPSHOT`. In this case there are two possibilities:
* switch to release API. Change plugin API version in `pom.xml` from
`2.8-SNAPSHOT` to `2.8.1` and repeat step 1 above.
* build and install `SNAPSHOT` version of plugin API in local Maven repository:
./tools/maven/ install
=== Exception 2:
Plugin's `pom.xml` references other own or foreign (unpublished) libraries or
even other Gerrit plugins. These libraries and/or plugins must be built and
installed in local Maven repository. Clone the related projects and issue
mvn install
Repeat step 1. above.
== Bazel in tree driven
The fact that plugin contains `BUILD` file doesn't mean that building this
plugin from the plugin directory works.
Bazel in tree driven means it can only be built from within Gerrit tree. Clone
or link the plugin into gerrit/plugins directory:
cd gerrit
bazel build plugins/<plugin-name>:<plugin-name>
The output can be normally found in the following directory:
Some plugins describe their build process in `src/main/resources/Documentation/`
file. It may worth checking.
=== Plugins with external dependencies ===
If the plugin has external dependencies, then they must be included from Gerrit's
own WORKSPACE file. This can be achieved by including them in `external_plugin_deps.bzl`.
During the build in Gerrit tree, this file must be copied over the dummy one in
`plugins` directory.
Example for content of `external_plugin_deps.bzl` file:
load("//tools/bzl:maven_jar.bzl", "maven_jar")
def external_plugin_deps():
name = 'org_apache_tika_tika_core',
artifact = 'org.apache.tika:tika-core:1.12',
sha1 = '5ab95580d22fe1dee79cffbcd98bb509a32da09b',
== Bazel standalone driven
Only few plugins support that mode for now:
cd reviewers
bazel build reviewers
Part of link:index.html[Gerrit Code Review]