62 lines
1.8 KiB
Nix
62 lines
1.8 KiB
Nix
# This file provides a top-level function that will be used by both nixpkgs and nixos
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# to generate mod directories for use at runtime by factorio.
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{ lib, stdenv }:
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let
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inherit (lib)
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flatten
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head
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optionals
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optionalString
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removeSuffix
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replaceStrings
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splitString
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unique
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;
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in
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{
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mkModDirDrv = mods: modsDatFile: # a list of mod derivations
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let
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recursiveDeps = modDrv: [modDrv] ++ map recursiveDeps modDrv.deps;
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modDrvs = unique (flatten (map recursiveDeps mods));
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in
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stdenv.mkDerivation {
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name = "factorio-mod-directory";
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preferLocalBuild = true;
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buildCommand = ''
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mkdir -p $out
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for modDrv in ${toString modDrvs}; do
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# NB: there will only ever be a single zip file in each mod derivation's output dir
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ln -s $modDrv/*.zip $out
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done
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'' + (optionalString (modsDatFile != null) ''
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cp ${modsDatFile} $out/mod-settings.dat
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'');
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};
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modDrv = { allRecommendedMods, allOptionalMods }:
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{ src
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, name ? null
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, deps ? []
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, optionalDeps ? []
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, recommendedDeps ? []
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}: stdenv.mkDerivation {
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inherit src;
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# Use the name of the zip, but endstrip ".zip" and possibly the querystring that gets left in by fetchurl
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name = replaceStrings ["_"] ["-"] (if name != null then name else removeSuffix ".zip" (head (splitString "?" src.name)));
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deps = deps ++ optionals allOptionalMods optionalDeps
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++ optionals allRecommendedMods recommendedDeps;
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preferLocalBuild = true;
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buildCommand = ''
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mkdir -p $out
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srcBase=$(basename $src)
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srcBase=''${srcBase#*-} # strip nix hash
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srcBase=''${srcBase%\?*} # strip querystring leftover from fetchurl
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cp $src $out/$srcBase
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'';
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};
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}
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