Maven plug-in

[tdegueul]

Brainstorming ideas for the future Maven plug-in, with a first rough draft implementation.

Features

• Basic plug-in infrastructure
• Hooks to the verify phase
• Fail the build on either source or binary incompatibilities
• Make the plug-in skippable
• Check the current version against a published version retrieved from remote repositories:
• Write reports/APIs to target/roseau or override through configuration
• Accept Roseau .yaml files as configuration
• Check the current version against a baseline JAR
• Tests

Usage

Manual invocation:

$ mvn verify
$ mvn roseau:check

Basic pom.xml configuration. Here, attaching to the verify phase when building commons-cli:

<plugin>
	<groupId>io.github.alien-tools</groupId>
	<artifactId>roseau-maven-plugin</artifactId>
	<version>0.2.0-SNAPSHOT</version>
	<configuration>
		<oldVersion>
			<groupId>commons-cli</groupId>
			<artifactId>commons-cli</artifactId>
			<version>1.0</version>
		</oldVersion>
	</configuration>
	<executions>
		<execution>
			<phase>verify</phase>
			<goals>
				<goal>check</goal>
			</goals>
		</execution>
	</executions>
</plugin>

Implementation

We can assume that we have a JAR readily available that's just been built in the package phase. I don't see a reason to parse and analyze sources, so the implementation just uses the ASM extractor.