steps:
  - checkout: self
    fetchDepth: 1
    retryCountOnTaskFailure: 3

  - task: NodeTool@0
    inputs:
      versionSource: fromFile
      versionFilePath: .nvmrc
      nodejsMirror: https://github.com/joaomoreno/node-mirror/releases/download

  - script: node build/setup-npm-registry.js $NPM_REGISTRY
    condition: and(succeeded(), ne(variables['NPM_REGISTRY'], 'none'))
    displayName: Setup NPM Registry

  - script: mkdir -p .build && node build/azure-pipelines/common/computeNodeModulesCacheKey.js linux $VSCODE_ARCH > .build/yarnlockhash
    displayName: Prepare node_modules cache key

  - task: Cache@2
    inputs:
      key: '"node_modules" | .build/yarnlockhash'
      path: .build/node_modules_cache
      cacheHitVar: NODE_MODULES_RESTORED
    displayName: Restore node_modules cache

  - script: tar -xzf .build/node_modules_cache/cache.tgz
    condition: and(succeeded(), eq(variables.NODE_MODULES_RESTORED, 'true'))
    displayName: Extract node_modules cache

  - script: |
      set -e
      npm config set registry "$NPM_REGISTRY" --location=project
      # npm >v7 deprecated the `always-auth` config option, refs npm/cli@72a7eeb
      # following is a workaround for yarn to send authorization header
      # for GET requests to the registry.
      echo "always-auth=true" >> .npmrc
      yarn config set registry "$NPM_REGISTRY"
    condition: and(succeeded(), ne(variables.NODE_MODULES_RESTORED, 'true'), ne(variables['NPM_REGISTRY'], 'none'))
    displayName: Setup NPM & Yarn

  - task: npmAuthenticate@0
    inputs:
      workingFile: .npmrc
    condition: and(succeeded(), ne(variables.NODE_MODULES_RESTORED, 'true'), ne(variables['NPM_REGISTRY'], 'none'))
    displayName: Setup NPM Authentication

  - script: sudo apt-get update && sudo apt-get install -y libkrb5-dev
    displayName: Install build dependencies
    condition: and(succeeded(), ne(variables.NODE_MODULES_RESTORED, 'true'))

  - script: |
      set -e
      for i in {1..5}; do # try 5 times
        yarn --frozen-lockfile --check-files && break
        if [ $i -eq 3 ]; then
          echo "Yarn failed too many times" >&2
          exit 1
        fi
        echo "Yarn failed $i, trying again..."
      done
    env:
      ELECTRON_SKIP_BINARY_DOWNLOAD: 1
      PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: 1
      GITHUB_TOKEN: "$(github-distro-mixin-password)"
    displayName: Install dependencies
    condition: and(succeeded(), ne(variables.NODE_MODULES_RESTORED, 'true'))

  - script: |
      set -e
      node build/azure-pipelines/common/listNodeModules.js .build/node_modules_list.txt
      mkdir -p .build/node_modules_cache
      tar -czf .build/node_modules_cache/cache.tgz --files-from .build/node_modules_list.txt
    condition: and(succeeded(), ne(variables.NODE_MODULES_RESTORED, 'true'))
    displayName: Create node_modules archive