71 lines
3.7 KiB
Nix
71 lines
3.7 KiB
Nix
/* This file defines all OpenRA packages under `openraPackages`,
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e.g. the OpenRA release engine can be found at `openraPackages.engines.release` (see `engines.nix`),
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or the out-of-tree mod "Combined Arms" can be found at `openraPackages.mods.ca` (see `mods.nix`).
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The `openra` package is just an alias to `openraPackages.engines.release`,
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and just provides the mods included in the source code of the engine.
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Additional engines or mods can be added with `openraPackages.buildOpenRAEngine` (function around `engine.nix`)
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and `openraPackages.buildOpenRAMod` (function around `mod.nix`), respectively.
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*/
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pkgs:
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with pkgs.lib;
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let
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/* Building an engine or out-of-tree mod is very similar,
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but different enough not to be able to build them with the same package definition,
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so instaed we define what is common between them in a seperate file.
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Although `callPackage` could be used, it would require undoing `makeOverridable`,
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because `common.nix` does not define a package, but just an attribute set,
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which is directly passed as part of the argument to the engines and mods `callPackage`,
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so either the attributes added by `makeOverridable` have to be removed
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or the engine and mod package definitions will need to add `...` to the argument list.
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*/
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common = let f = import ./common.nix; in f (builtins.intersectAttrs (functionArgs f) pkgs // {
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lua = pkgs.lua5_1;
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# It is not necessary to run the game, but it is nicer to be given an error dialog in the case of failure,
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# rather than having to look to the logs why it is not starting.
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inherit (pkgs.gnome3) zenity;
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});
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/* Building a set of engines or mods requires some dependencies as well,
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so the sets will actually be defined as a function instead,
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requiring the dependencies and returning the actual set.
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Not all dependencies for defining a engine or mod set are shared,
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so additional arguments can be passed as well.
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The builders for engines and mods allow to delay specifying the name,
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by returning a function that expects a name, which we use, in this case,
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to base the name on the attribute name instead, preventing the need to specify the name twice
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if the attribute name and engine/mod name are equal.
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*/
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callWithName = name: value: if isFunction value then value name else value;
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buildOpenRASet = f: args: pkgs.recurseIntoAttrs (mapAttrs callWithName (f ({
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inherit (pkgs) fetchFromGitHub;
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extraPostFetch = ''
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sed -i 's/curl/curl --insecure/g' $out/thirdparty/{fetch-thirdparty-deps,noget}.sh
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$out/thirdparty/fetch-thirdparty-deps.sh
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'';
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} // args)));
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in pkgs.recurseIntoAttrs rec {
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# The whole attribute set is destructered to ensure those (and only those) attributes are given
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# and to provide defaults for those that are optional.
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buildOpenRAEngine = { name ? null, version, description, homepage, mods, src }@engine:
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# Allow specifying the name at a later point if no name has been given.
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let builder = name: pkgs.callPackage ./engine.nix (common // {
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engine = engine // { inherit name; };
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}); in if name == null then builder else builder name;
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# See `buildOpenRAEngine`.
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buildOpenRAMod = { name ? null, version, title, description, homepage, src, engine, assetsError ? "" }@mod: ({ version, mods ? [], src }@engine:
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let builder = name: pkgs.callPackage ./mod.nix (common // {
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mod = mod // { inherit name assetsError; };
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engine = engine // { inherit mods; };
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}); in if name == null then builder else builder name) engine;
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# See `buildOpenRASet`.
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engines = buildOpenRASet (import ./engines.nix) { inherit buildOpenRAEngine; };
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mods = buildOpenRASet (import ./mods.nix) { inherit buildOpenRAMod; };
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}
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