freeleaps-ops/first-class-pipeline/src/com/freeleaps/devops/DependenciesResolver.groovy

package com.freeleaps.devops

import com.freeleaps.devops.enums.DependenciesManager

class DependenciesResolver {
  def steps
  def language
  def cachingEnabled
  def mgr

  DependenciesResolver(steps, language) {
    this.steps = steps
    this.language = language
  }

  def enableCachingSupport() {
    this.cachingEnabled = true
  }

  def disableCachingSupport() {
    this.cachingEnabled = false
  }

  def useManager(DependenciesManager mgr) {
    if (mgr == DependenciesManager.UNKNOWN) {
      steps.error("Unknown dependencies manager")
    }
    this.mgr = mgr
  }

  def resolve(configurations) {
    if (mgr == null) {
      steps.error("Dependencies manager is not set")
    }

    log.info "Ready to resolve dependencies for ${language}..."

    log.info "Using ${mgr.manager} to resolve dependencies..."

    if (cachingEnabled) {
      log.info "Dependencies caching is enabled"
    }

    switch (mgr) {
      case DependenciesManager.PIP:
        if (configurations.pipRequirementsFile == null || configurations.pipRequirementsFile.isEmpty()) {
          steps.error("pipRequirementsFile is required when using PIP as dependencies manager")
        }

        def requirementsFile = configurations.pipRequirementsFile

        if (cachingEnabled) {
          steps.cache(maxCacheSize: 512, caches: [[$class: 'ArbitraryFileCache', excludes: '', includes: '**/*', path: '.pip-cache']]) {
            steps.sh "pip install -r ${requirementsFile} --cache-dir .pip-cache"
          }
        } else {
          steps.sh "pip install -r ${requirementsFile}"
        }
      case DependenciesManager.NPM:
        if (configurations.npmPackageJsonFile == null || configurations.npmPackageJsonFile.isEmpty()) {
          steps.error("npmPackageJsonFile is required when using NPM as dependencies manager")
        }

        def packageJsonFile = configurations.npmPackageJsonFile

        if (cachingEnabled) {
          steps.cache(maxCacheSize: 512, caches: [[$class: 'ArbitraryFileCache', excludes: '', includes: '**/*', path: '.npm-cache']]) {
            steps.sh "npm install --cache .npm-cache"
          }
        } else {
          steps.sh "npm install"
        }
      case DependenciesManager.YARN:
        if (configurations.yarnPackageJsonFile == null || configurations.yarnPackageJsonFile.isEmpty()) {
          steps.error("yarnPackageJsonFile is required when using YARN as dependencies manager")
        }

        def packageJsonFile = configurations.yarnPackageJsonFile

        if (cachingEnabled) {
          steps.cache(maxCacheSize: 512, caches: [[$class: 'ArbitraryFileCache', excludes: '', includes: '**/*', path: '.yarn-cache']]) {
            steps.sh "yarn install --cache-folder .yarn-cache"
          }
        } else {
          steps.sh "yarn install"
        }
      default:
        steps.error("Unsupported dependencies manager")
    }
  }
}