646b892680
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85 lines
2.4 KiB
Nix
85 lines
2.4 KiB
Nix
{
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lib,
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writeTextFile,
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buildPackages,
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}:
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# See https://people.freedesktop.org/~dbn/pkg-config-guide.html#concepts
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{
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name, # The name of the pc file
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# keywords
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# provide a default description for convenience. it's not important but still required by pkg-config.
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description ? "Pkg-config file for ${name}",
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url ? "",
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version ? "",
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requires ? [ ],
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requiresPrivate ? [ ],
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conflicts ? [ ],
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cflags ? [ ],
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libs ? [ ],
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libsPrivate ? [ ],
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variables ? { },
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}:
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let
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# only 'out' has to be changed, otherwise it would be replaced by the out of the writeTextFile
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placeholderToSubstVar = builtins.replaceStrings [ "${placeholder "out"}" ] [ "@out@" ];
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replacePlaceholderAndListToString =
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x:
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if builtins.isList x then
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placeholderToSubstVar (builtins.concatStringsSep " " x)
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else
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placeholderToSubstVar x;
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keywordsSection =
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let
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mustBeAList = attr: attrName: lib.throwIfNot (lib.isList attr) "'${attrName}' must be a list" attr;
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in
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{
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"Name" = name;
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"Description" = description;
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"URL" = url;
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"Version" = version;
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"Requires" = mustBeAList requires "requires";
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"Requires.private" = mustBeAList requiresPrivate "requiresPrivate";
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"Conflicts" = mustBeAList conflicts "conflicts";
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"Cflags" = mustBeAList cflags "cflags";
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"Libs" = mustBeAList libs "libs";
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"Libs.private" = mustBeAList libsPrivate "libsPrivate";
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};
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renderVariable =
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name: value:
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lib.optionalString (
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value != "" && value != [ ]
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) "${name}=${replacePlaceholderAndListToString value}";
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renderKeyword =
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name: value:
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lib.optionalString (
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value != "" && value != [ ]
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) "${name}: ${replacePlaceholderAndListToString value}";
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renderSomething =
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renderFunc: attrs:
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lib.pipe attrs [
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(lib.mapAttrsToList renderFunc)
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(builtins.filter (v: v != ""))
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(lib.concatLines)
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];
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variablesSectionRendered = renderSomething renderVariable variables;
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keywordsSectionRendered = renderSomething renderKeyword keywordsSection;
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content = [
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variablesSectionRendered
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keywordsSectionRendered
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];
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in
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writeTextFile {
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name = "${name}.pc";
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destination = "/lib/pkgconfig/${name}.pc";
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text = builtins.concatStringsSep "\n" content;
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checkPhase = ''${buildPackages.pkg-config}/bin/${buildPackages.pkg-config.targetPrefix}pkg-config --validate "$target"'';
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}
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