17d8576cc4
This change allows Liminix to be used as a non-flake input to a flake by making <nixpkgs> into a default argument. An example flake that makes use of this is here: https://github.com/pcc/liminix-flake-demo
35 lines
971 B
Nix
35 lines
971 B
Nix
{
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buildPackages,
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callPackage,
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nixpkgs,
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pseudofile,
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runCommand,
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writeText,
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}:
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filesystem:
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let
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pseudofiles = pseudofile.write "files.pf" filesystem;
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storefs = callPackage "${nixpkgs}/nixos/lib/make-squashfs.nix" {
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# 1) Every required package is referenced from somewhere
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# outside /nix/store. 2) Every file outside the store is
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# specified by config.filesystem. 3) Therefore, closing over
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# the pseudofile will give us all the needed packages
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storeContents = [ pseudofiles ];
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};
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in
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runCommand "frob-squashfs"
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{
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nativeBuildInputs = with buildPackages; [
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squashfsTools
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qprint
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];
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}
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''
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cp ${storefs} ./store.img
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chmod +w store.img
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mksquashfs - store.img -exit-on-error -no-recovery -quiet -no-progress -root-becomes store -p "/ d 0755 0 0"
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mksquashfs - store.img -exit-on-error -no-recovery -quiet -no-progress -root-becomes nix -p "/ d 0755 0 0" -pf ${pseudofiles}
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cp store.img $out
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''
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