Adding pkg-config metadata to Nixpkgs packages

[Ericson2314]

See

• https://github.com/NixOS/nixpkgs/pull/212282
• https://github.com/NixOS/nixpkgs/pull/214304
• https://github.com/NixOS/nixpkgs/pull/215056
• treewide: More meta pkg config modules by Ericson2314 · Pull Request #216096 · NixOS/nixpkgs · GitHub
• treewide: Add `meta.pkgConfigModules` to a few packages by Ericson2314 · Pull Request #215844 · NixOS/nixpkgs · GitHub
• tests.defaultPkgConfigPackages: Test `meta.pkgConfigModules` by Ericson2314 · Pull Request #215198 · NixOS/nixpkgs · GitHub

The goal would be to crowdsource meta.pkgConfigModules (and tests`) for all the packages in that JSON file, so we can automate rather than hand curate it.

Please help out!

See also Tracking pkg-config info · Issue #1309 · repology/repology-updater · GitHub : Repology will hopefully do something with this information too!

[Ericson2314]

Here is a useful sed script for anyone that wants to help out.

s/ \}:$/\n, testers\n}:/
s/^\}:$/, testers\n}:/
s/(stdenv.mkDerivation) (rec )?\{/\1 (finalAttrs: {/
/^  meta = (with lib; )?\{/i \ \ passthru.tests.pkg-config = testers.testMetaPkgConfig finalAttrs.finalPackage;\n
/^    platforms =/i \ \ \ \ pkgConfigModules = [ ];
s/^\}$/})/

[Growpotkin]

How’s this going? This is really the first time I’ve had time to read into all of the PRs and discussions there.

[Ericson2314]

It’s going well, but more crowd sourcing always helps!