Support for list of allowed licenses for 3rdpartylicenses.txt

[nook24]

Command

build

Description

When running ng build angular will generate the file 3rdpartylicenses.txt which contains information about 3rd party licenses included in the build result. While this is awesome, it would be good to have an option to allow licenses that can be included in the build. For example MIT, Apache-2.0 and as soon as a license which is not allowed is included, the build should fail.

https://github.com/angular/angular-cli/blob/ec7dd59e38f84db91f5a2e4ed653bbc54cb82d54/packages/angular/build/src/builders/application/execute-build.ts#L247-L253

Describe the solution you'd like

In go, the package https://github.com/google/go-licenses for example supports --allowed_licenses=<comma separated license names>. As soon as a different license is found, the build fails. also php or other languages have tools for this.

Describe alternatives you've considered

Currently I'm trying to implement this using the npm package: https://www.npmjs.com/package/@onebeyond/license-checker

The issue is, that it includes a lot of npm packages which are not part of the final angular app - such as argparse for example.

[angular-robot[bot]]

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