53 lines
1.4 KiB
Nix
53 lines
1.4 KiB
Nix
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{
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# Shows multiple flake inputs plus a `follows` edge that makes one
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# transitive input reuse a top-level input from this flake.
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description = "A minimal follows and inputs example";
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
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systems.url = "github:nix-systems/default";
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flake-utils = {
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url = "github:numtide/flake-utils";
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inputs.systems.follows = "systems";
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};
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};
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outputs =
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{
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self,
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nixpkgs,
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flake-utils,
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...
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}:
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flake-utils.lib.eachDefaultSystem (
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system:
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let
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pkgs = import nixpkgs { inherit system; };
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in
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{
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packages.default = pkgs.writeShellScriptBin "show-follows" ''
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echo "flake-utils is sharing the top-level systems input"
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'';
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apps.default = {
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type = "app";
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program = "${self.packages.${system}.default}/bin/show-follows";
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meta.description = "Run the package built in the follows example.";
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};
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checks.runs = pkgs.runCommand "show-follows-runs" { } ''
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output="$(${self.packages.${system}.default}/bin/show-follows)"
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if [ "$output" = "flake-utils is sharing the top-level systems input" ]; then
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echo ok > "$out"
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else
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echo "unexpected output: $output" >&2
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exit 1
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fi
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'';
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}
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);
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}
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