feat(cli): add cli

cli/index.js

@@ -0,0 +1,75 @@
+#!/usr/bin/env node
+
+'use strict';
+
+const mri = require('mri');
+const chalk = require('chalk');
+const merge = require('../src');
+const fs = require('fs');
+
+const parsed = mri(process.argv.slice(2))
+
+if ((parsed.version ?? parsed.v) || parsed._[0] === 'version') {
+  console.log(`fivem-merge v${require('../package.json').version}`);
+
+  process.exit();
+}
+
+if ((parsed.help ?? parsed.h) || parsed._[0] === 'help' || Object.keys(parsed).length === 1) {
+  console.log(`  Usage:`);
+  console.log(`    ${chalk.yellow('vmerge')} <...paths> -o <path>  Merge two or more resources and output them at ${chalk.whiteBright('path')}`);
+  console.log(`    ${chalk.yellow('vmerge help')}                  This.`);
+  console.log(`    ${chalk.yellow('vmerge version')}               The version of this package.`);
+  console.log();
+  console.log(`  Options:`);
+  console.log(`    ${chalk.yellow('--output , -o')}  The merge destination.`);
+  console.log(`    ${chalk.yellow('--help   , -h')}  This.`);
+  console.log(`    ${chalk.yellow('--verbose, -v')}  Enable additional info.`);
+  console.log(`    ${chalk.yellow('--no-lint, -l')}  Enable this to disable meta linting.`);
+  console.log();
+  console.log(`  Examples:`);
+  console.log(`    ${chalk.yellow('- Merge bmw3, bmw4 and 18bmw into bmws')}`);
+  console.log(`    vmerge ./bmw3 ./bmw4 ./18bmw ${chalk.grey('--output')} ./bmws`);
+
+  process.exit();
+}
+
+const paths = [...parsed._];
+function hmBool(name) {
+  if (name in parsed) {
+    if (typeof parsed[name] === 'string') paths.push(parsed[name]);
+    return true;
+  }
+  return false;
+}
+const noLint = hmBool('no-lint') ?? hmBool('l') ?? false;
+const verb = hmBool('verbose') ?? hmBool('v') ?? false;
+const output = parsed.output ?? parsed.o;
+
+if (!output) {
+  console.warn(`The ${chalk.grey('--output')} option is required.`);
+  process.exit();
+}
+
+if (!(0 in paths)) {
+  console.warn(`Please supply some paths to resources to merge.`);
+  process.exit();
+}
+
+if (fs.existsSync(output)) {
+  console.warn(`${chalk.grey('fivem-merge')} cannot output files into an already existing directory.`);
+  process.exit();
+}
+
+for (const path of paths) {
+  if (!fs.existsSync(path)) {
+    console.warn(`The resource ${chalk.grey(path)} does not exist.`);
+    process.exit();
+  }
+}
+
+merge(paths, {
+  verbose: verb,
+  outputPath: output,
+  lintOutput: !noLint,
+})