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2e0493130a
With this change we refactor the Angular CLI and replace the underlying args parser and command builder. We choose to use Yargs as our parser and command builder of choice. The main advantages of Yargs over other command builders are; - Highly configurable. - We already use it in other packages such as the compiler-cli/dev-infra etc.. - Commands and options can be added during runtime. This is a requirement that is needed to support architect and schematics commands. - Outstanding documentation. - The possibility to parse args without parser configuration (Free form). - Commands are built lazily based on the arguments passed. BREAKING CHANGE: Several changes in the Angular CLI commands and arguments handling. - `ng help` has been removed in favour of the `—-help` option. - `ng —-version` has been removed in favour of `ng version` and `ng v`. - Deprecated camel cased arguments are no longer supported. Ex. using `—-sourceMap` instead of `—-source-map` will result in an error. - `ng update`, `—-migrate-only` option no longer accepts a string of migration name, instead use `—-migrate-only -—name <migration-name>`. - `—-help json` help has been removed. Closes #20976, closes #16614 and closes #16241