Add support to mine cargo Package-URLs

[ziadhany]

• issue: purl-next: Collect PURLs for Rust ecosystem #666

[AyanSinhaMahapatra]

Thanks @ziadhany, looks good as a start. Please see my comments for your consideration

[pombredanne]

@ziadhany what's left todo here?

[ziadhany]

@pombredanne I just need to use the common function. But I already tested running the workflow in this repo: https://github.com/ziadhany/cargo-test/. I will update it today.

[AyanSinhaMahapatra]

Thanks @ziadhany, looking good.
See my comments for your consideration. We can also start testing this in the aboutcode-data CI now

[AyanSinhaMahapatra]

A bit more tests for cargo mining would be nice, we can create a small repo with some commits to test, this is okay

[ziadhany]

@AyanSinhaMahapatra I added multiple test cases for Cargo, and also tested the entire workflow using these three repositories:

• https://github.com/ziadhany/sample-minecode-pipelines-config
• https://github.com/ziadhany/cargo-test-data
• https://github.com/ziadhany/sample-crates.io-index.git

[AyanSinhaMahapatra]

Thanks @ziadhany, looks good. Could you use these repositories instead:

• https://github.com/aboutcode-data/minecode-pipelines-config
• https://github.com/aboutcode-data/minecode-data-cargo-test

And run this using the CI action added at aboutcode-data/minecode-pipelines-config#1?

The issue can be closed with this ^
Merging the PR as everything looks good otherwise.