Use cargo-about as lib crate for license command #56

BaumiCoder commented 2026年06月06日 11:39:34 +02:00

Task description

Use the cargo-about crate as lib and not as bin to create the license text for the license command. This may even allow avoiding duplicated license texts (e.g., Apache 2.0) if they have no small differences, such as a copyright header (e.g., in MIT).

reason

With the current approach to install cargo-about binary, building ecformat installs this crate system-wide. Using it as a lib (i.e., as build dependency) allows keeping this installation locally for the project. This could make the build more reliable and avoids problems in special environments (e.g., for Docrs.rs see #28).

Automation (CI/CD)

The change itself is a one-time thing and affects the automatic creation of the license text including all dependencies.

Resources

• Related issues at cargo-about
  • Allow use in "cargo build scripts" (build.rs)
  • License Notice Generation as a Library
• Related pull request at cargo-about: Expose generate function
• Documentation of the generate function

### Task description Use the `cargo-about` crate as `lib` and not as `bin` to create the license text for the license command. This may even allow avoiding duplicated license texts (e.g., Apache 2.0) if they have no small differences, such as a copyright header (e.g., in MIT). ### reason With the current approach to install `cargo-about` binary, building ecformat installs this crate system-wide. Using it as a lib (i.e., as build dependency) allows keeping this installation locally for the project. This could make the build more reliable and avoids problems in special environments (e.g., for Docrs.rs see #28). ### Automation (CI/CD) The change itself is a one-time thing and affects the automatic creation of the license text including all dependencies. ### Resources - Related issues at `cargo-about` - [Allow use in "cargo build scripts" (build.rs)](https://github.com/EmbarkStudios/cargo-about/issues/286) - [License Notice Generation as a Library](https://github.com/EmbarkStudios/cargo-about/issues/272) - Related pull request at `cargo-about`: [Expose generate function](https://github.com/EmbarkStudios/cargo-about/pull/291) - [Documentation of the `generate` function](https://docs.rs/cargo-about/latest/cargo_about/generate/fn.generate.html)