Followup to #6881
Allow controlling chunk naming via the `--named-chunks` flag, which can be set on `.angular-cli.json` as well.
Defaults to true in development, false in production.
Adds the new flag `--build-optimizer` (`--bo`), usable only with `--aot` (or `--prod` since it auto enables `--aot`).
This feature is experimental, and may not work correctly on your project. Should it work, total bundle size should go down. Savings are heavily dependent on the project.
See https://github.com/angular/devkit/tree/master/packages/angular_devkit/build_optimizer for details about all the optimizations applied.
Usage: `ng build --prod --build-optimizer`. Disabling the vendor chunk has been shown to improve total savings, and is done automatically when `--bo` is specified unless `--vendor-chunk` has a value.
Please let us know if using `--build-optimizer` breaks your project so we can improve it further. Repos are very welcome.
This is useful when you don't want the server to rebuild in the middle of something.
A good example is when running e2e tests. Especially on larger suites, one would prefer to continue working while the build is tested without compromising tests.
This will break tests on #4744. They should be adjusted to add the `--watch` flag since they depend on the live reload behaviour during `ng e2e`.
Heavily based on @jsanchezgarcia work in #4476.
Fix#3857
BREAKING CHANGE:
A new environmentSource entry replaces the previous source entry inside environments.
To migrate the code follow the example below:
Before:
```
"environments": {
"source": "environments/environment.ts",
"dev": "environments/environment.ts",
"prod": "environments/environment.prod.ts"
}
```
After:
```
"environmentSource": "environments/environment.ts",
"environments": {
"dev": "environments/environment.ts",
"prod": "environments/environment.prod.ts"
}
```
Allows you to run ng build --json which generates dist/stats.json. This can then be used with things like the webpack-bundle-analyzer or https://webpack.github.io/analyse/Fix#3179
Fix https://github.com/angular/angular-cli/issues/4138
BREAKING CHANGE:
- `--extractCss` defaults to `false` on all `--dev` (`ng build` with no flags uses `--dev`)
- `--aot` defaults to true in `--prod`
- the alias for `--output-path` is now `-op` instead of `-o`
Having css extraction on all the time makes dev rebuild times very slow for global styles.
This flag defaults to false on dev targets and true on prod targets.
