@masterofbob777/grunt-config/Gruntfile.js

A grunt config for js and ts, for use in all projects I work on.

/**
 *
 * @param {import("grunt")} grunt
 * @param {any} opts
 */
module.exports = (
	grunt,
	{
		configs: { platform: defaultPlat = "node", target = "node12.9" } = {},
		options: { typescript = false, jsx = false, external = [] } = {},
		general: { indir = "src", outdir = "app", entry = "main" } = {},
	} = {}
) => {
	const ext = typescript ? "ts" : "js";

	const packages = [
		"grunt-contrib-clean",
		"grunt-contrib-copy",
		"grunt-contrib-watch",
		"grunt-eslint",
		"grunt-plugin-esbuild",
		"grunt-plugin-jscc",
		"grunt-prettier",
		"grunt-shell",
	];

	for (const package of packages) {
		grunt.loadNpmTasks(package);
	}

	const env = require(`./config/envs/${grunt.option("env") || "development"}.json`);
	const platform = require(`./config/plats/${grunt.option("platform") || defaultPlat}.json`);

	const jsccMix = {
		values: {
			_ENV: env,
			_PLATFORM: platform,
		},
		sourceMap: false,
	};

	/**
	 * @type {import("esbuild").BuildOptions}
	 */
	const esbuildMix = {
		bundle: true,
		outdir: outdir,
		outbase: `jscc_temp/${indir}`,
		sourcemap: true,
		minify: env.normalName !== "development",
		external: external,
		target: target,
		platform: platform.normalName,
	};

	grunt.initConfig({
		pkg: grunt.file.readJSON("package.json"),
		watch: {
			dev: {
				files: [`${indir}/**/*.${ext}`, "static/**/*"],
				tasks: ["softbuild", "clean:jscc_temp"],
				options: {
					debounceDelay: 700,
				},
			},
		},
		eslint: {
			options: {
				fix: true,
			},
			target: [`${indir}/**/*.${ext}`],
		},
		jscc: {
			dev: {
				inpaths: [
					env === "test" ? `${indir}/**/*.spec.${ext}` : `${indir}/**/*!(.spec).${ext}`,
				],
				out: "jscc_temp",
				...jsccMix,
			},
		},
		esbuild: {
			main: {
				platform: "node",
				entryPoints: [`jscc_temp/${indir}/${entry}.${ext}`],
				...esbuildMix,
			},
		},
		copy: {
			static: {
				expand: true,
				cwd: "static",
				src: "**",
				dest: "app/",
			},
		},
		clean: {
			jscc_temp: ["jscc_temp/**/*"],
		},
		shell: {
			dtsbundle: {
				command: `npx dts-bundle-generator -o "./${outdir}/${entry}.d.ts" "./${indir}/${entry}.${ext}"`,
			},
		},
	});

	grunt.registerTask("lint", ["eslint"]);
	grunt.registerTask("build", ["jscc:dev", "esbuild:main", "clean:jscc_temp"]);
	grunt.registerTask("gen_types", ["shell:dtsbundle"]);
	grunt.registerTask("test", [
		/* "unit", "e2e"*/
	]);
};