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30 lines
830 B
Nix
30 lines
830 B
Nix
/*
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Parse an emacs package file to derive packages from
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Package-Requires declarations.
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*/
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{ pkgs }:
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let
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parse = pkgs.callPackage ./parse.nix { };
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in
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{ packageElisp
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, extraEmacsPackages ? epkgs: [ ]
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, package ? pkgs.emacs
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, override ? (self: super: { })
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}:
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let
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packages = parse.parsePackagesFromPackageRequires packageElisp;
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emacsPackages = (pkgs.emacsPackagesFor package).overrideScope (self: super:
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# for backward compatibility: override was a function with one parameter
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if builtins.isFunction (override super)
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then override self super
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else override super
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);
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emacsWithPackages = emacsPackages.emacsWithPackages;
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in
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emacsWithPackages (epkgs:
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let
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usePkgs = builtins.map (name: epkgs.${name}) packages;
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extraPkgs = extraEmacsPackages epkgs;
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in
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[ epkgs.use-package ] ++ usePkgs ++ extraPkgs)
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