feat: improve CLI help system with grouped command display and enhanced error handling; set NO_COLOR environment variable for better output control

Author: Bharath-code

lib/cli.js

@@ -34,20 +34,10 @@ function parseNameWithLang(name) {
 
 program.name('snip').version(pkg.version).description(pkg.description)
   .enablePositionalOptions()
-  .option('--no-color', 'Disable colored output');
+  .option('--no-color', 'Disable colored output')
+  .exitOverride();
 
-// UX: Set NO_COLOR env before commands run so chalk auto-detects it
-program.hook('preAction', () => {
-  if (program.opts().color === false) {
-    process.env.NO_COLOR = '1';
-  }
-});
-
-// UX: Show rich help with command groups
-program.addHelpCommand('help [cmd]', 'Show help for commands');
-
-// UX: Custom help with grouped commands
-program.on('--help', () => {
+function showGroupedHelp() {
   console.log('');
   console.log(c.accent('┌─────────────────────────────────────────────────────────────┐'));
   console.log(c.accent('│') + '  SNIPPETS                                            ' + c.accent('│'));
@@ -87,8 +77,19 @@ program.on('--help', () => {
   console.log(c.dim('    snip search docker --limit 5             # Find snippets'));
   console.log(c.dim('    snip list --tag deploy --sort recent    # Filter & sort'));
   console.log('');
+}
+
+program.command('help').action(showGroupedHelp);
+
+// UX: Set NO_COLOR env before commands run so chalk auto-detects it
+program.hook('preAction', () => {
+  if (program.opts().color === false) {
+    process.env.NO_COLOR = '1';
+  }
 });
 
+
+
 program
   .command('add <name>')
   .description('Add a new snippet (supports shortcuts: add:js, add:py, add:sh)')
@@ -358,8 +359,16 @@ if (process.argv.length <= 2) {
   } catch (_e) { }
 }
 
-program.on('--help', () => {
-  console.log('\nQuick start:\n  echo \'echo "hello"\' | snip add test --lang sh --tags demo\n  snip list\n  snip search hello\n  snip run test --dry-run\n');
-});
+if (process.argv.includes('--help') || process.argv.includes('-h')) {
+  showGroupedHelp();
+  process.exit(0);
+}
 
-program.parse(process.argv);
+try {
+  program.parse(process.argv);
+} catch (err) {
+  if (err.code === 'commander.help' || err.code === 'commander.version') {
+    process.exit(0);
+  }
+  throw err;
+}