build.gradle

plugins {
  id 'base'
  id 'com.github.node-gradle.node' version '3.0.1'
}

node {
  // Whether to download and install a specific Node.js version or not
  // If false, it will use the globally installed Node.js
  // If true, it will download node using above parameters
  // Note that npm is bundled with Node.js
  download = true

  // Version of node to download and install (only used if download is true)
  // It will be unpacked in the workDir
  version = '14.16.0'

  // Version of Yarn to use
  // Any Yarn task first installs Yarn in the yarnWorkDir
  // It uses the specified version if defined and the latest version otherwise (by default)
  yarnVersion = '1.22.10'
}

yarn_install {
  // Specify the inputs and outputs for incremental build.
  // Save build time when the inputs and outputs are up-to-date.
  inputs.files('package.json', 'yarn.lock')
  outputs.dir('node_modules')
}


// -------- Build related tasks ----------
clean {
  delete 'node_modules', '.nyc_output'
}


// -------- Test related tasks ----------
task lint(type: YarnTask) {
  description 'Eslint all .js files'
  group 'Test'

  inputs.files('src/**/*.js', 'test/**/*.js')
  outputs.dir("$buildDir/lint-report")

  dependsOn 'yarn_install'

  args = ['lint']
}

task unit_test(type: YarnTask) {
  description 'Run all unit tests'
  group 'Test'

  inputs.dir('src')
  inputs.dir('test')
  outputs.dirs("$buildDir/lint-report", "$buildDir/lint-report")

  dependsOn 'yarn_install'

  args = ['test']
}

task test {
  description 'Run eslint linter and mocha unit tests'
  group 'Test'

  dependsOn 'lint', 'unit_test'
}