packages/angular/cli/utilities/color.ts
packages/angular_devkit/build_angular/src/utils/color.ts

packages/angular/cli/commands/update-impl.ts
packages/angular_devkit/core/node/host.ts

packages/angular/cli/commands/update-impl.ts
packages/angular_devkit/build_angular/src/utils/purge-cache.ts

packages/angular/cli/commands/update-impl.ts
packages/angular_devkit/build_angular/src/utils/i18n-options.ts

packages/angular/cli/commands/update-impl.ts
packages/angular_devkit/build_angular/src/utils/delete-output-dir.ts

packages/angular/cli/utilities/install-package.ts
packages/angular_devkit/schematics/tasks/package-manager/executor.ts

packages/angular/cli/utilities/tty.ts
packages/angular_devkit/build_angular/src/utils/tty.ts

packages/angular/cli/utilities/json-file.ts
packages/angular_devkit/schematics/tools/file-system-utility.ts