When building a Gerrit plugin in-tree, allow to add extra dependencies to the WORKSPACE file. The only operation required will be the overwrite of the plugins/external_plugin_deps.bzl file with the one provided by the plugin. Bug: Issue 5305 Change-Id: I07e4538f9f81ef923a4ca1aeceaee75d8429434e
		
			
				
	
	
		
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			2.5 KiB
		
	
	
	
		
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			113 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
= Gerrit Code Review - Building plugins
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From build process perspective there are three types of plugins:
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* Maven driven
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* Bazel tree driven
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* Bazel standalone
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These types can be combined: if both files in plugin's root directory exist:
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* `BUILD`
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* `pom.xml`
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the plugin can be built with both Bazel and Maven.
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== Maven driven build
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If plugin contains `pom.xml` file, it can be built with Maven as usually:
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----
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mvn clean package
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----
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Exceptions from the rule above:
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=== Exception 1:
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Plugin's `pom.xml` references snapshot version of plugin API:
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`2.8-SNAPSHOT`. In this case there are two possibilities:
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* switch to release API. Change plugin API version in `pom.xml` from
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  `2.8-SNAPSHOT` to `2.8.1` and repeat step 1 above.
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* build and install `SNAPSHOT` version of plugin API in local Maven repository:
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----
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./tools/maven/api.sh install
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----
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=== Exception 2:
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Plugin's `pom.xml` references other own or foreign (unpublished) libraries or
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even other Gerrit plugins. These libraries and/or plugins must be built and
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installed in local Maven repository. Clone the related projects and issue
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----
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mvn install
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----
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Repeat step 1. above.
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== Bazel in tree driven
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The fact that plugin contains `BUILD` file doesn't mean that building this
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plugin from the plugin directory works.
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Bazel in tree driven means it can only be built from within Gerrit tree. Clone
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or link the plugin into gerrit/plugins directory:
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----
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cd gerrit
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bazel build plugins/<plugin-name>:<plugin-name>
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----
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The output can be normally found in the following directory:
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----
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bazel-genfiles/plugins/<plugin-name>/<plugin-name>.jar
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----
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Some plugins describe their build process in `src/main/resources/Documentation/build.md`
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file. It may worth checking.
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=== Plugins with external dependencies ===
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If the plugin has external dependencies, then they must be included from Gerrit's
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own WORKSPACE file. This can be achieved by including them in `external_plugin_deps.bzl`.
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During the build in Gerrit tree, this file must be copied over the dummy one in
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`plugins` directory.
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Example for content of `external_plugin_deps.bzl` file:
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----
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load("//tools/bzl:maven_jar.bzl", "maven_jar")
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def external_plugin_deps():
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  maven_jar(
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      name = 'org_apache_tika_tika_core',
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      artifact = 'org.apache.tika:tika-core:1.12',
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      sha1 = '5ab95580d22fe1dee79cffbcd98bb509a32da09b',
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  )
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----
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== Bazel standalone driven
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Only few plugins support that mode for now:
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----
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cd reviewers
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bazel build reviewers
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----
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GERRIT
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------
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Part of link:index.html[Gerrit Code Review]
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SEARCHBOX
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