Merge pull request #222852 from amjoseph-nixpkgs/pr/wegank/platforms

  showLicenseOrSourceType = value: toString (map (v: v.shortName or "unknown") (lib.lists.toList value));

  showLicense = showLicenseOrSourceType;

  showPlatforms = attrs: toString (builtins.filter

    (system: lib.meta.availableOn (lib.systems.elaborate { inherit system; }) attrs)

    lib.platforms.all);

  showSourceType = showLicenseOrSourceType;

  pos_str = meta: meta.position or "«unknown-file»";

    else if !allowBroken && attrs.meta.broken or false then

      { valid = "no"; reason = "broken"; errormsg = "is marked as broken"; }

    else if !allowUnsupportedSystem && hasUnsupportedPlatform attrs then

      { valid = "no"; reason = "unsupported"; errormsg = "is only supported on `${showPlatforms attrs}` but not on requested ‘${hostPlatform.system}’"; }

      let toPretty = lib.generators.toPretty {

            allowPrettyValues = true;

            indent = "  ";

          };

      in { valid = "no"; reason = "unsupported";

           errormsg = ''

             is not available on the requested hostPlatform:

               hostPlatform.config = "${hostPlatform.config}"

               package.meta.platforms = ${toPretty (attrs.meta.platforms or [])}

               package.meta.badPlatforms = ${toPretty (attrs.meta.badPlatforms or [])}

            '';

         }

    else if !(hasAllowedInsecure attrs) then

      { valid = "no"; reason = "insecure"; errormsg = "is marked as insecure"; }