reproducablebuild-maven-plugin Maven Mojo

Apache Maven Mojo for setting or clearing the new project.build.outputTimestamp property

License	Apache License, Version 2.0
Categories	Maven Build Tools
GroupId	com.theoryinpractise
ArtifactId	reproducible-maven-plugin
Last Version	1.0.1
Release Date	Nov 9, 2019
Type	maven-plugin
Description	reproducablebuild-maven-plugin Maven Mojo Apache Maven Mojo for setting or clearing the new project.build.outputTimestamp property
Project URL	http://maven.apache.org
Source Code Management	https://github.com/talios/reproducible-maven-plugin

Download reproducible-maven-plugin

Filename	Size
reproducible-maven-plugin-1.0.1.pom
reproducible-maven-plugin-1.0.1.jar	17 KB
reproducible-maven-plugin-1.0.1-sources.jar	9 KB
reproducible-maven-plugin-1.0.1-javadoc.jar	39 KB

How to add to project

Apache Maven

<plugin>
    <groupId>com.theoryinpractise</groupId>
    <artifactId>reproducible-maven-plugin</artifactId>
    <version>1.0.1</version>
</plugin>

Dependencies

compile (5)

Group / Artifact	Type	Version
org.apache.maven.plugin-tools : maven-plugin-annotations	jar	3.6.0
org.jdom : jdom2	jar	2.0.6
org.apache.maven : maven-plugin-api	jar	3.6.2
org.apache.maven : maven-core	jar	3.6.2
com.google.errorprone : error_prone_annotations	jar	2.3.3

Project Modules

There are no modules declared in this project.

Reproducible Plugin for Apache Maven (obsolete)

A simple Apache Maven plugin to provide some tests for the new reproducible build features of Apache Maven and its related plugins.

This plugin is designed to be run as part of both the preparationGoals and completionGoals element of the Maven Release Plugin.

When applied, any pom in the current maven session will be rewritten to include the new project.build.outputTimestamp property that is looked for by supported plugins:

  <properties>
    <project.build.outputTimestamp>2019-11-09T05:12:36Z</project.build.outputTimestamp>
  </properties>

Notice that the value of the project.build.outputTimestamp property injected is "now", then NOT reproducible: DO NOT EXPECT THIS PLUGIN TO MAKE YOUR BUILD REPRODUCIBLE. This plugin was only useful in 2019'Q3 to make early tests.

Nowadays:

1. add explicitely the project.build.outputTimestamp property to your reactor parent POM with your value of choice: the value is reproducible as it is simply written in the pom.xml,
2. let maven-release-plugin 3.0.0-M1 (see MRELEASE-1029) update the value of the timestamp during the release while it's doing other pom.xml updates, to get a project.build.outputTimestamp value that meet release expectations while remaining reproducible (simply written in pom.xml)

Configuration

    <plugin>
      <groupId>com.theoryinpractise</groupId>
      <artifactId>reproducible-maven-plugin</artifactId>
      <version>1.0.1</version>
    </plugin>

    <plugin>
      <artifactId>maven-release-plugin</artifactId>
      <version>2.5.3</version>
      <configuration>
        <preparationGoals>clean com.theoryinpractise:reproducible-maven-plugin:apply install
  </preparationGoals>
        <completionGoals>com.theoryinpractise:reproducible-maven-plugin:clear</completionGoals>
        <goals>deploy</goals>
      </configuration>
    </plugin>

Changes

• 1.0.1

  • Initial Release

• 2020Q1: mark this test plugin as obsolete, as it does not make build reproducible and is replaced by maven-release-plugin 3.0.0-M1 (see MRELEASE-1029)

Versions

Version
1.0.1 Nov 9, 2019