add OCaml purl implementation to Tools

[hannesm]

No description provided.

[mjherzog]

@hannesm Closing because we are covering this in #763

[hannesm]

@hannesm Closing because we are covering this in #763

I'm not entirely sure what this means, #763 is about adding OCaml/opam to purl. This PR is about an implementation of purl (in OCaml). But I'll leave it to you, since you know how purl-spec/implementations/... should be organized.

[mjherzog]

@hannesm Closing this PR was my mistake. We are deprecating the list of implementations from the README in favor of our Software Tools section on the new Package-URL website at https://package-url.github.io/www.packageurl.org/.

I have drafted an entry as:

Project: hannesm/purl
Description: This package provides decoders and encoders in OCaml.

Base language: OCaml
Software License: ISC
Data License: n/a
Service License: n/a
Functions: n/a (NB - we are still working on the list of Functions)
Type: Library
Standards: PURL v1.0
Platform: n/a
Home: https://github.com/hannesm/purl
Source download: https://github.com/hannesm/purl/releases
Documentation: https://hannesm.github.io/purl/doc
Package download: n/a
Notes:

Please update/confirm the data and we will add your project to the Software Tools.
Thank you for your patience.

[hannesm]

I agree with the data you typed there. I only have one or two questions: What is Functions? And, the other is, that the installation is done via opam install purl (which downloads and compiles the source) -- does this fit somewhere in your data schema?

[mjherzog]

@hannesm Thank you for the quick review.

• Functions are not yet defined so it is a placeholder "n/a" for everyone.
• Package download is meant for package manager downloads so opam does not seem to fit that field. There is a Notes field if you want to use it for install instructions. Otherwise we expect that a visitor will get install info from documentation like a README.

[hannesm]

Thanks for your response. It's fine, OCaml developers will find how to install that package :)

[mjherzog]

@johnmhoran Please add opam to the Registered PURL Type cards