Added make-listing script

package.json

@@ -9,6 +9,9 @@
 		"node",
 		"storage"
 	],
+	"bin": {
+		"make-listing": "./scripts/make-listing.js"
+	},
 	"type": "module",
 	"homepage": "https://github.com/browser-fs/core",
 	"author": "John Vilk <[email protected]>",

scripts/make-listing.js

@@ -0,0 +1,98 @@
+#!/usr/bin/env node
+import { parseArgs } from 'util';
+import { statSync, readdirSync, writeFileSync } from 'fs';
+import { join } from 'path/posix';
+import { resolve } from 'path';
+
+const {
+	values: options,
+	positionals: [root],
+} = parseArgs({
+	options: {
+		help: { short: 'h', type: 'boolean', default: false },
+		ignore: { short: 'i', type: 'string', multiple: true, default: [] },
+		output: { short: 'o', type: 'string', default: 'listing.json' },
+		quiet: { short: 'q', type: 'boolean', default: false },
+		verbose: { type: 'boolean', default: false },
+	},
+	allowPositionals: true,
+	strict: true,
+});
+
+if (options.help) {
+	console.log(`make-index <path> [...options]
+	path: The path to create a listing for
+
+	options:
+		--help, -h:				Outputs this help message
+		--output, -o <path>:	Path to the output file. Defaults to listing.
+		--quiet, -q: 			Do not output messages about individual files
+		--verbose:				Output verbose messages
+		--ignore, -i <pattern>:	Ignores files which match <pattern>. Can be passed multiple times.
+	`);
+	process.exit();
+}
+
+if (options.quiet && options.verbose) {
+	console.log('Can not use both --verbose and --quiet.');
+	process.exit();
+}
+
+function pathToPosix(path) {
+	return path.replaceAll('\\', '/');
+}
+
+const colors = {
+	reset: 0,
+	black: 30,
+	red: 31,
+	green: 32,
+	yellow: 33,
+	blue: 34,
+	magenta: 35,
+	cyan: 36,
+	white: 37,
+	bright_black: 90,
+	bright_red: 91,
+	bright_green: 92,
+	bright_yellow: 93,
+	bright_blue: 94,
+	bright_magenta: 95,
+	bright_cyan: 96,
+	bright_white: 97,
+};
+
+function color(color, text) {
+	return `\x1b[${colors[color]}m${text}\x1b[0m`;
+}
+
+function makeListing(path, seen = new Set()) {
+	try {
+		const stats = statSync(path);
+
+		if (stats.isFile()) {
+			return null;
+		}
+
+		let entries = {};
+		for (const file of readdirSync(path)) {
+			const full = join(path, file);
+			if (options.ignore.some(pattern => full.match(pattern))) {
+				if (!options.quiet) console.log(`${color('yellow', 'skip')} ${full}`);
+				continue;
+			}
+
+			entries[file] = makeListing(full, seen);
+		}
+		return entries;
+	} catch (e) {
+		if (!options.quiet) {
+			console.log(`${color('red', 'fail')} ${path}: ${e.message}`);
+		}
+	}
+}
+
+const listing = makeListing(pathToPosix(root));
+if (!options.quiet) console.log('Generated listing for ' + pathToPosix(resolve(root)));
+
+writeFileSync(options.output, JSON.stringify(listing));