Gradle Licenses Plugin

This Gradle plugin provides tasks to generate a file with the licenses used from the project's dependencies.

Usage

Integration

Using the plugins DSL

Kotlin

plugins {
    id("com.cmgapps.licenses") version "4.6.1"
}

Groovy

plugins {
    id 'com.cmgapps.licenses' version '4.6.1'
}

Using legacy plugin application

Kotlin

buildscript {
    repositories {
        maven {
            url = uri("https://plugins.gradle.org/m2/")
        }
    }
    dependencies {
        classpath("com.cmgapps:gradle-licenses-plugin:4.6.1")
    }
}

apply(plugin = "com.cmgapps.licenses")

Groovy

buildscript {
    repositories {
        maven {
            url 'https://plugins.gradle.org/m2/'
        }
    }
    dependencies {
        classpath 'com.cmgapps:gradle-licenses-plugin:4.6.1'
    }
}

apply plugin: 'com.cmgapps.licenses'

Tasks

Applying the plugin will create tasks to generate the license report

For "java" and "java-library"

• licenseReport

For "com.android.application", "com.android.library", "com.android.feature" and "com.android.dynamic-feature"

• license<variant>Report

For "org.jetbrains.kotlin.multiplatform"

• licenseMultiplatformReport collects licenses from all targets
• licenseMultiplatform<target>Report collects licenses from common and the specified <target>

Configuration

Output Format

Example:

licenses {
    reports {
        html.enabled = false // html is enabled by default
        xml {
            enabled = true
            destination = file("$buildDir/reports/licenses.xml")
        }
    }
}

The plugin can output different formats.

• HTML generates a formatted HTML website

  • Styling

    For an HTML report you can define custom stylesheet using a File or String:

     licenses {
         reports {
             html.stylesheet("body {background: #FAFAFA}")
         }     
     }

    or

    licenses {
        reports {
            html.stylesheet(file("$projectDir/styles/licenses.css"))
        } 
    }

  • On the default CSS style Dark Mode for supported browsers is also enabled by default. It adds a <meta name="color-scheme" content="dark light"> and a custom css theme.

    It can be disabled via

    licenses {
        reports {
            html.useDarkMode.set(false)
        }
    }

• JSON generates a JSON file

• XML generates a valid XML version 1.0 file

• Text generates a plain text report file

• Mardown generates a Markdown file

• Custom add your own reporter as a lambda function

  Kotlin

    licenses {
        custom {
            enabled = true
            destination = buildDir.resolve("reports").resolve("licenses.txt")
            generate { list -> list.map { it.name }.joinToString() }
        }
    }

  Groovy

    licenses {
        custom {
            enabled = true
            destination = file("$buildDir/reports/licenses/licenses.txt")
            generate { list -> list.collect { it.name }.join(', ') }
        }
   }

Multi-project Builds

For multi-project build, you can add projects you want to collect license information from in the main project.

Kotlin

licenses {
    additionalProjects(":module2", ":module3")
}

Groovy

licenses {
    additionalProjects ':module2', ':module3'
}

License

Copyright (c) 2018. Christian Grach <christian.grach@cmgapps.com>

SPDX-License-Identifier: Apache-2.0