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82f9fe67c3
Using `perSystem` to implement per-system attributes ties all the per-system attributes together; all the `perSystem` functions must run to determine output attrs. By generating them separately, the generation can be done lazily.
56 lines
1.7 KiB
Nix
56 lines
1.7 KiB
Nix
# flakelight -- Framework for simplifying flake setup
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# Copyright (C) 2023 Archit Gupta <archit@accelbread.com>
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# SPDX-License-Identifier: MIT
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{ config, src, lib, flakelight, genSystems, ... }:
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let
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inherit (lib) mkDefault mkMerge mkOption mkIf mapAttrsToList;
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inherit (lib.types) lazyAttrsOf nullOr package str;
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inherit (flakelight.types) optFunctionTo;
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in
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{
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options = {
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formatter = mkOption {
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type = nullOr (optFunctionTo package);
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default = null;
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};
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formatters = mkOption {
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type = nullOr (optFunctionTo (lazyAttrsOf str));
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default = null;
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};
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};
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config = mkMerge [
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(mkIf (config.formatter != null) {
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outputs.formatter = genSystems config.formatter;
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})
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(mkIf (config.formatters != null) {
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outputs.formatter = mkDefault (genSystems
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({ pkgs, lib, fd, coreutils, ... }:
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pkgs.writeShellScriptBin "formatter" ''
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PATH=${lib.makeBinPath (config.devShell.packages or (_: [ ]) pkgs)}
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for f in "$@"; do
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if [ -d "$f" ]; then
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${fd}/bin/fd "$f" -Htf -x "$0" &
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else
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case "$(${coreutils}/bin/basename "$f")" in
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${toString (mapAttrsToList
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(n: v: "${n}) ${v} \"$f\" & ;;") (config.formatters pkgs))}
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esac
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fi
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done &>/dev/null
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wait
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''));
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})
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(mkIf ((config.formatters != null) || (config.formatter != null)) {
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checks.formatting = { lib, outputs', diffutils, ... }: ''
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${lib.getExe outputs'.formatter} .
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${diffutils}/bin/diff -qr ${src} . |\
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sed 's/Files .* and \(.*\) differ/File \1 not formatted/g'
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'';
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})
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];
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}
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