mirror of
https://github.com/numtide/treefmt.git
synced 2024-07-14 20:20:29 +03:00
66959743ba
Add CI check so this actually gets exercised
114 lines
3.1 KiB
Nix
114 lines
3.1 KiB
Nix
{ config, lib, nixpkgs, treefmt, ... }:
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let
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# A new kind of option type that calls lib.getExe on derivations
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exeType = lib.mkOptionType {
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name = "exe";
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description = "Path to executable";
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check = (x: lib.isString x || builtins.isPath x || lib.isDerivation x);
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merge = loc: defs:
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let res = lib.mergeOneOption loc defs; in
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if lib.isString res || builtins.isPath res then
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"${res}"
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else
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lib.getExe res;
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};
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# The schema of the treefmt.toml data structure.
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configSchema = with lib; {
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excludes = mkOption {
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description = "A global list of paths to exclude. Supports glob.";
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type = types.listOf types.str;
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default = [ ];
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example = [ "./node_modules/**" ];
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};
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formatter = mkOption {
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type = types.attrsOf (types.submodule [{
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options = {
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command = mkOption {
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description = "Executable obeying the treefmt formatter spec";
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type = exeType;
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};
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options = mkOption {
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description = "List of arguments to pass to the command";
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type = types.listOf types.str;
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default = [ ];
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};
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includes = mkOption {
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description = "List of files to include for formatting. Supports globbing.";
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type = types.listOf types.str;
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};
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excludes = mkOption {
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description = "List of files to exclude for formatting. Supports globbing. Takes precedence over the includes.";
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type = types.listOf types.str;
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default = [ ];
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};
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};
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}]);
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default = { };
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description = "Set of formatters to use";
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};
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};
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configFormat = nixpkgs.formats.toml { };
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in
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{
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# Schema
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options = {
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settings = configSchema;
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package = lib.mkOption {
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description = "Package wrapped in the build.wrapper output";
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type = lib.types.package;
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default = treefmt;
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};
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projectRootFile = lib.mkOption {
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description = ''
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File to look for to determine the root of the project in the
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build.wrapper.
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'';
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example = "flake.nix";
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};
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# Outputs
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build = {
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configFile = lib.mkOption {
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description = ''
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Contains the generated config file derived from the settings.
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'';
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type = lib.types.path;
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};
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wrapper = lib.mkOption {
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description = ''
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The treefmt package, wrapped with the config file.
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'';
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type = lib.types.package;
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};
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};
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};
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# Config
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config.build = {
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configFile = configFormat.generate "treefmt.toml" config.settings;
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wrapper = nixpkgs.writeShellScriptBin "treefmt" ''
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find_up() (
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ancestors=()
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while [[ ! -f "$1" ]]; do
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ancestors+=("$PWD")
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if [[ $PWD == / ]]; then
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echo "ERROR: Unable to locate the projectRootFile ($1) in any of: ''${ancestors[*]@Q}" >&2
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exit 1
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fi
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cd ..
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done
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)
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tree_root=$(find_up "${config.projectRootFile}")
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exec ${config.package}/bin/treefmt --config-file ${config.build.configFile} "$@" --tree-root "$tree_root"
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'';
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};
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}
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