Babel Maven Plugin

Transpile JavaScript files in Babel in pure Java.

License	MIT License
Categories	Maven Build Tools
GroupId	com.jarslab.maven
ArtifactId	babel-maven-plugin
Last Version	1.6
Release Date	Jul 2, 2020
Type	maven-plugin
Description	Babel Maven Plugin Transpile JavaScript files in Babel in pure Java.
Project URL	https://github.com/jarslab/babel-maven-plugin
Source Code Management	https://github.com/jarslab/babel-maven-plugin

Download babel-maven-plugin

Filename	Size
babel-maven-plugin-1.6.pom
babel-maven-plugin-1.6.jar	31 KB
babel-maven-plugin-1.6-sources.jar	16 KB
babel-maven-plugin-1.6-javadoc.jar	462 KB

How to add to project

Apache Maven

<plugin>
    <groupId>com.jarslab.maven</groupId>
    <artifactId>babel-maven-plugin</artifactId>
    <version>1.6</version>
</plugin>

Dependencies

compile (1)

Group / Artifact	Type	Version
org.graalvm.js : js	jar	19.3.1

provided (3)

Group / Artifact	Type	Version
org.apache.maven : maven-plugin-api	jar	3.6.0
org.apache.maven.plugin-tools : maven-plugin-annotations	jar	3.6.0
org.immutables : value	jar	2.8.2

test (3)

Group / Artifact	Type	Version
junit : junit	jar	4.12
org.assertj : assertj-core	jar	3.10.0
org.mockito : mockito-core	jar	2.21.0

Project Modules

There are no modules declared in this project.

Babel Maven Plugin

Plugin lets you to execute Babel transcription for given JavaScript files. It requires no npm or node.js, it is plain Java project (based on embedded GraalVM from version 1.4) which works perfectly combined with WebJars.

Maven coords

<dependency>
  <groupId>com.jarslab.maven</groupId>
  <artifactId>babel-maven-plugin</artifactId>
  <version>1.6</version>
</dependency>

Settings, ie buttons and knobs

• verbose - no surprises, the execution becomes a bit more talkative (default: false),
• threads - number of threads to use when transpiling (default: 1, will be capped on the amount of processors available)
• encoding - will apply chosen encoding during files operations (read/write) (default: Charset.defaultCharset()),
• babelSrc - readable path to standalone(!) Babel sources. It can be provided from WebJars dependency, minified or development version,
• sourceDir - base path for JavaScript files you are going to translate,
• targetDir - result path, note that all sub-directories from sourceDir will be preserved,
• jsFiles - list of JavaScript files (static) from sourceDir to translate,
• jsIncludes - list of JavaScript files (with simple masks */?),
• jsExcludes - list of exceptions for jsIncludes,
• prefix - optional prefix applied for every translated file,
• formatPresets - enable/disable presets formatting (default: true). Once disabled presets are required to be well formatted,
• presets - presets for Babel execution (default: es2015),
• plugins - plugins for Babel execution (default: "" (empty)) NOTE: any custom plugins are required to be available in provided babelSrc

Example

<plugin>
    <groupId>com.jarslab.maven</groupId>
    <artifactId>babel-maven-plugin</artifactId>
    <version>1.6</version>
    <executions>
        <execution>
            <id>js-transpile</id>
            <phase>process-resources</phase>
            <goals>
                <goal>babel</goal>
            </goals>
            <configuration>
                <verbose>true</verbose>
                <threads>4</threads>
                <babelSrc>${project.basedir}/target/classes/assets/jslib/babel.min.js</babelSrc>
                <sourceDir>${project.basedir}/target/classes/assets/</sourceDir>
                <targetDir>${project.basedir}/target/classes/assets/</targetDir>
                <jsSourceIncludes>
                    <jsSourceInclude>src/*.js</jsSourceInclude>
                </jsSourceIncludes>
                <prefix>trans-</prefix>
                <presets>react,es2015</presets>
            </configuration>
        </execution>
    </executions>
</plugin>

Changelog

• 1.6: Fix Presets handling
• 1.5: Add plugins option for Babel execution
• 1.4: Switch from deprecated Nashorn engine to GraalVM

Versions

Version
1.6 Jul 2, 2020
1.5 May 6, 2020
1.4 Mar 4, 2020
1.3 Dec 21, 2019
1.2 Jul 7, 2019
1.1 Jun 24, 2019
1.0 Jan 16, 2019