A Webpack module's `factoryMeta` property is not guaranteed to be defined. This change ensures that the build optimizer skip property is added even in the case of no `factoryMeta` currently defined.
These changes simplify type usage in several places as well as cover more usage scenarios with alternate configuration option structures (for example, options that can be arrays or object literals)..
This change removes some unneeded casts and provides support for building against Webpack 5. Webpack 5 typings currently do not contain certain types (for example, `Compiler.Handler`). Webpack 5 also uses `Set` in many places instead of arrays.
When `bundleDependencies` is turned off, webpack only bundles modules imported via relative path.
Existing check works well for import paths like `'./some/file'`,
but fails for imports traversing the dir structure up, like `'../some/file'`.
By leveraging the chunks function filter option, the test option can be reduced to only a regular expression instead of the more complex function. This change also provides support for Webpack 5.
Multiple Webpack plugins are only used when certain options are enabled. By only requiring them when needed, startup time can be reduced by potentially eliminating large dependency hierarchies from being loaded that will then be unused. This change currently only applies to plugins that are required. This limitation is due to the current webpack configuration infrastructure being synchronous which prevents dynamic import usage.
This commit makes a few minor changes to enable syncing the CLI repository
into google3.
1. mark pkg_tar and pkg_npm as external
2. remove dependencies (marked as comment) which are stale in google3
3. remove TS files generated from JSON schema in BUILD files since these
files are compiled and added to the g3 codebase at sync time
4. Some minor typing changes
5. Remove duplicate licenses
6. mark dependencies which are not available in g3 as external
7. Immediately type the result of JSON.parse() as required by g3 linter.
Otherwise, the type defaults to `any`.
