Extract metadata from conaninfo.txt

What does this MR do and why?

This MR extracts the data from conaninfo.txt and replaces the info for the conan package with the json representation.

References

• #480336 (closed) - Support custom settings in Conan metadata
• !161048 (closed) - Extract settings metadata from conaninfo.txt
• #523693 (closed) - [Feature flag] Rollout of parse_conan_metadata_on_upload
• #208321 (closed) - Add full recipe search to Conan package repository
• #33892 (closed) - Extract Conan (C/C++ Package Manager) metadata and add it to the UI

How to set up and validate locally

Supposing you have a conan remote called "gitlab-local" pointing to your local gitlab project. If not, you can set it up following the documentations: https://docs.gitlab.com/ee/user/packages/conan_repository/#add-a-remote-for-your-project

1. Create a new conan package

   mkdir searchTestpkg && cd searchTestpkg
   conan new searchTest/1.2.3@gitlab-org+conan/stable --template=cmake_lib
   conan create . gitlab-org+conan/stable

2. Upload the package

   conan upload searchTest/1.2.3@gitlab-org+conan/stable -r gitlab-local --all

3. Open rails console to verify the metadata

   gdk rails console

   # We take the last package, assuming this is the latest uploaded.
   package=Packages::Package.last
   package_file=package_file=package.package_files.find{|p| p.file_name == "conaninfo.txt"}
   package_file.conan_file_metadatum.package_reference.info

   This can be compared with the built package file that can be found at:

   ~/.conan/data/searchTest/1.2.3/gitlab-org+conan/stable/package/<hash>/conaninfo.txt

4. Check invalid conaninfo.txt

   Run the following commands to generate a profile that will give a big conaninfo:

   cp ~/.conan/profiles/default ~/.conan/profiles/big_conaninfo
   echo '    AAAAA=' >> ~/.conan/profiles/big_conaninfo
   printf 'A%.0s' {1..20001} >> ~/.conan/profiles/big_conaninfo

   This assumes that the [env] section is the last section in the default profile. Check that the ~/.conan/profiles/big_conaninfo file ends with:

   ...
   [env]
       AAAAA=AAAA....

   Create a new package with the new profile and publish it.

   mkdir bigTestpkg && cd bigTestpkg
   conan new bigTest/1.2.3@gitlab-org+conan/stable --template=cmake_lib
   conan create . gitlab-org+conan/stable -pr big_conaninfo

   conan upload bigTest/1.2.3@gitlab-org+conan/stable -r gitlab-local --all

   When checking the info field with the commands from step 3 you should get {} as a value

---

cc @oceane_scania

Related to #338926

💾 Database analysis

• Update a packages_conan_package_references record