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https://github.com/nmattia/snack.git
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60 lines
1.5 KiB
Nix
60 lines
1.5 KiB
Nix
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{ lib
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, singleOut
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, callPackage
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}:
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with (callPackage ./modules.nix { inherit singleOut; });
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rec {
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mkPackageSpec =
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packageDescr@
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{ src
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, main ? null
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, ghcOpts ? []
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, dependencies ? []
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, extra-files ? []
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, extra-directories ? []
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, packages ? lib.filter (x: builtins.typeOf x != "string") dependencies
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}:
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{ packageMain = main;
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packageBase = src;
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packageGhcOpts = ghcOpts;
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packageDependencies = lib.filter (x: builtins.typeOf x == "string") dependencies;
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# TODO: merge extra files and extra dirs together
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packageExtraFiles =
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if builtins.isList extra-files
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then (_x: extra-files)
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else extra-files;
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packageExtraDirectories =
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if builtins.isList extra-directories
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then (_x: extra-directories)
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else extra-directories;
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packagePackages = map mkPackageSpec packages;
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};
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flattenPackages = topPkgSpec:
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[topPkgSpec] ++ lib.lists.concatMap (flattenPackages) topPkgSpec.packagePackages;
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# TODO: nub
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allTransitiveDeps = topPkgSpec:
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lib.lists.concatMap
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(pkgSpec: pkgSpec.packageDependencies)
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(flattenPackages topPkgSpec);
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# Returns the first package spec that contains a module with given name. If
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# none is found, returns the supplied default value.
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pkgSpecByModuleName = pkgs: def: modName:
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( lib.findFirst
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(pkgSpec:
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lib.lists.elem
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modName
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(listModulesInDir pkgSpec.packageBase)
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)
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def
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pkgs
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);
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}
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