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grunt-maven-classpath

Grunt plugin that generates a json file containing the maven classpath

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grunt-maven-classpath

Grunt plugin that determines the classpath of a maven project and saves it to a JSON file that can be loaded into the configuration of other plugins.

Getting Started

This plugin requires Grunt ~0.4.5

If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:

npm install grunt-maven-classpath --save-dev

Once the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:

grunt.loadNpmTasks('grunt-maven-classpath');

The "maven_classpath" task

Overview

In your project's Gruntfile, add a section named maven_classpath to the data object passed into grunt.initConfig().

grunt.initConfig({
  maven_classpath: {
    options: {
      // Task-specific options go here.
    },
    your_target: {
      // Target-specific file lists and/or options go here.
    },
  },
});

Options

options.tempFile

Type: String Default value: ', '

The name of a temporary file used by the plugin to generate the classpath.

options.jsonFile

Type: String Default value: 'classpath-<%=target%>.json'

The name of a json file where the final classpath is stored.

options.overrides

Type: Array Default value: []

An array of classpath overrides that replace maven dependencies with explicit classpath entries.

Usage Examples

Default Options

In this example, the default options are used to generate a classpath from the maven pom.xml file.

grunt.initConfig({
  maven_classpath: {
    main: {
      
    }
  },
});

When the task is run, a file named classpath-main.json will be generated that contains an array of classpath entries. For example, a maven project with three dependencies may generate the following classpath file.

[
    "/Users/bob/.m2/repository/myproject/mylib-0.0.1-SNAPSHOT.jar",
    "/Users/bob/.m2/repository/org/apache/commons/commons-lang3/3.4/commons-lang3-3.4.jar",
    "/Users/bob/.m2/repository/commons-io/commons-io/2.3/commons-io-2.3.jar"
]

Overrides

In this example, an override is specified so that the classpath generated includes a specific directory containing classes that overrides a maven dependency.

grunt.initConfig({
  maven_classpath: {
    main: {
      options: {
        overrides: [
          {
            artifactId: 'mylib',
            overridePath: '/Users/bob/git/mylib/build/classes'
          }
        ]
      }
    }
  },
});

The resulting classpath skips the mylib dependency from the classpath and instead includes the classes directory specified.

[
    "/Users/bob/git/mylib/build/classes",
    "/Users/bob/.m2/repository/org/apache/commons/commons-lang3/3.4/commons-lang3-3.4.jar",
    "/Users/bob/.m2/repository/commons-io/commons-io/2.3/commons-io-2.3.jar"
]

Contributing

In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.

Release History

  • 2015-10-13 v0.1.2
    • Fix npm repository url
  • 2015-10-01 v0.1.1   
    • Exclude provided dependencies, fix Windows path separator issue
  • 2015-09-30 v0.1.0
    • Initial release

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