feat: When adding an unspecified output path, overwrite the source fi…

…le and retain the original folder tree relationship

cli.js

@@ -1,17 +1,19 @@
 #!/usr/bin/env node
-import process from 'node:process';
-import arrify from 'arrify';
-import meow from 'meow';
-import getStdin from 'get-stdin';
-import imagemin from 'imagemin';
-import ora from 'ora';
-import plur from 'plur';
-import stripIndent from 'strip-indent';
-import pairs from 'lodash.pairs';
-import {isUint8Array} from 'uint8array-extras';
-
-const cli = meow(`
+import process from "node:process";
+import arrify from "arrify";
+import meow from "meow";
+import getStdin from "get-stdin";
+import imagemin from "imagemin";
+import ora from "ora";
+import plur from "plur";
+import stripIndent from "strip-indent";
+import pairs from "lodash.pairs";
+import { isUint8Array } from "uint8array-extras";
+
+const cli = meow(
+	`
 	Usage
+		$ imagemin <path|glob> [options]
 	  $ imagemin <path|glob> ... --out-dir=build [--plugin=<name> ...]
 	  $ imagemin <file> > <output>
 	  $ cat <file> | imagemin > <output>
@@ -21,6 +23,8 @@ const cli = meow(`
 	  --out-dir, -o  Output directory
 
 	Examples
+	  $ imagemin images/*
+	  $ imagemin images/* --plugin.pngquant.quality={0.1,0.2} --plugin.gifsicle.quality={0.1,0.2}
 	  $ imagemin images/* --out-dir=build
 	  $ imagemin foo.png > foo-optimized.png
 	  $ cat foo.png | imagemin > foo-optimized.png
@@ -29,109 +33,136 @@ const cli = meow(`
 	  # Non-Windows platforms may support the short CLI syntax for array arguments
 	  $ imagemin foo.png --plugin.pngquant.quality={0.1,0.2} > foo-optimized.png
 	  $ imagemin foo.png --plugin.webp.quality=95 --plugin.webp.preset=icon > foo-icon.webp
-`, {
-	importMeta: import.meta,
-	flags: {
-		plugin: {
-			type: 'string',
-			shortFlag: 'p',
-			isMultiple: true,
-			default: [
-				'gifsicle',
-				'jpegtran',
-				'optipng',
-				'svgo',
-			],
-		},
-		outDir: {
-			type: 'string',
-			shortFlag: 'o',
+`,
+	{
+		importMeta: import.meta,
+		flags: {
+			plugin: {
+				type: "string",
+				shortFlag: "p",
+				isMultiple: true,
+				default: ["gifsicle", "jpegtran", "optipng", "svgo"],
+			},
+			outDir: {
+				type: "string",
+				shortFlag: "o",
+			},
 		},
 	},
-});
+);
 
-const requirePlugins = plugins => Promise.all(plugins.map(async ([plugin, options]) => {
-	try {
-		const {default: _plugin} = await import(`imagemin-${plugin}`);
-		return _plugin(options);
-	} catch {
-		console.error(stripIndent(`
+const requirePlugins = (plugins) =>
+	Promise.all(
+		plugins.map(async ([plugin, options]) => {
+			try {
+				const { default: _plugin } = await import(`imagemin-${plugin}`);
+				return _plugin(options);
+			} catch {
+				console.error(
+					stripIndent(`
 			Unknown plugin: ${plugin}
 
 			Did you forget to install the plugin?
 			You can install it with:
 
 			  $ npm install -g imagemin-${plugin}
-		`).trim());
-
-		process.exit(1);
-	}
-}));
-
-const normalizePluginOptions = plugin => {
+		`).trim(),
+				);
+				process.exit(1);
+			}
+		}),
+	);
+
+const normalizePluginOptions = (plugin) => {
 	const pluginOptionsMap = {};
-
 	for (const v of arrify(plugin)) {
-		Object.assign(
-			pluginOptionsMap,
-			typeof v === 'object'
-				? v
-				: {[v]: {}},
-		);
+		Object.assign(pluginOptionsMap, typeof v === "object" ? v : { [v]: {} });
 	}
 
 	return pairs(pluginOptionsMap);
 };
 
-const run = async (input, {outDir, plugin} = {}) => {
+/**
+ * Delete all hierarchical files in the original directory while preserving the folder structure
+ * @param {*} dir
+ */
+const emptyDirSync = (dir) => {
+	if (fs.existsSync(dir)) {
+		const files = fs.readdirSync(dir);
+		files.forEach((file) => {
+			const currentPath = path.join(dir, file);
+			if (fs.statSync(currentPath).isDirectory()) {
+				emptyDirSync(currentPath);
+			} else {
+				fs.unlinkSync(currentPath);
+			}
+		});
+	}
+};
+
+const run = async (input, { outDir, plugin } = {}) => {
 	const pluginOptions = normalizePluginOptions(plugin);
 	const plugins = await requirePlugins(pluginOptions);
-	const spinner = ora('Minifying images');
+	const spinner = ora("Minifying images");
 
 	if (isUint8Array(input)) {
-		process.stdout.write(await imagemin.buffer(input, {plugins}));
+		process.stdout.write(await imagemin.buffer(input, { plugins }));
 		return;
 	}
 
 	if (outDir) {
 		spinner.start();
 	}
 
-	let files;
+	let files,
+		failedCount = 0;
 	try {
-		files = await imagemin(input, {destination: outDir, plugins});
+		files = await imagemin(input, { destination: outDir, plugins });
+		if (!outDir) {
+			if (fs.statSync(input[0]).isDirectory()) {
+				emptyDirSync(input[0]);
+			}
+			files.forEach((file) => {
+				fs.writeFile(file.sourcePath, file.data, (err) => {
+					if (err) {
+						failedCount++;
+						console.error(`${file.sourcePath} -- Write failed!`, err);
+					}
+				});
+			});
+		}
 	} catch (error) {
 		spinner.stop();
 		throw error;
 	}
 
-	if (!outDir && files.length === 0) {
-		return;
-	}
+	// if (!outDir && files.length === 0) {
+	// 	return;
+	// }
 
-	if (!outDir && files.length > 1) {
-		console.error('Cannot write multiple files to stdout, specify `--out-dir`');
-		process.exit(1);
-	}
+	// if (!outDir && files.length > 1) {
+	// 	console.error('Cannot write multiple files to stdout, specify `--out-dir`');
+	// 	process.exit(1);
+	// }
 
-	if (!outDir) {
-		process.stdout.write(files[0].data);
-		return;
-	}
+	// if (!outDir) {
+	// 	process.stdout.write(files[0].data);
+	// 	return;
+	// }
 
 	spinner.stop();
 
-	console.log(`${files.length} ${plur('image', files.length)} minified`);
+	console.log(
+		`${files.length - failedCount} ${plur("image", files.length)} minified`,
+	);
 };
 
 if (cli.input.length === 0 && process.stdin.isTTY) {
-	console.error('Specify at least one file path');
+	console.error("Specify at least one file path");
 	process.exit(1);
 }
 
 await run(
-	cli.input.length > 0
-		? cli.input
-		: await getStdin.buffer(),
+	cli.input.length > 0 ? cli.input : await getStdin.buffer(),
 	cli.flags,
 );

package.json

@@ -13,7 +13,8 @@
 		"node": ">=18"
 	},
 	"scripts": {
-		"test": "xo && ava"
+		"test": "xo && ava",
+		"testonly": "ava"
 	},
 	"files": [
 		"cli.js"
@@ -63,4 +64,4 @@
 			"n/no-unsupported-features": "off"
 		}
 	}
-}
+}