Update CLI

Author: kgryte

lib/node_modules/@stdlib/string/lowercase/bin/cli

@@ -3,112 +3,59 @@
 
 // MODULES //
 
-var fs = require( 'fs' );
-var path = require( 'path' );
-var parseArgs = require( 'minimist' );
-var notifier = require( 'update-notifier' );
+var join = require( 'path' ).join;
+var readFileSync = require( '@stdlib/fs/read-file' ).sync;
+var CLI = require( '@stdlib/tools/cli' );
 var stdin = require( '@stdlib/utils/read-stdin' );
-var pkg = require( './../package.json' );
-var opts = require( './opts.json' );
 var lowercase = require( './../lib' );
 
 
 // FUNCTIONS //
 
 /**
-* Performs initialization tasks.
-*
-* @private
-* @example
-* init();
-*/
-function init() {
-	var opts;
-
-	// Check if newer versions exist for this package:
-	opts = {
-		'pkg': pkg
-	};
-	notifier( opts ).notify();
-
-	// Set the process title to allow the process to be more easily identified:
-	process.title = pkg.name;
-	process.stdout.on( 'error', process.exit );
-} // end FUNCTION init()
-
-/**
-* Prints usage information.
+* Callback invoked upon reading from `stdin`.
 *
 * @private
-* @example
-* help();
-* // => '...'
+* @param {(Error|null)} error - error object
+* @param {Buffer} data - data
+* @returns {void}
 */
-function help() {
-	var fpath = path.join( __dirname, 'usage.txt' );
-	fs.createReadStream( fpath )
-		.pipe( process.stdout )
-		.on( 'close', onClose );
-
-	function onClose() {
-		process.exit( 0 );
+function onRead( error, data ) {
+	if ( error ) {
+		return console.error( error.message ); // eslint-disable-line no-console
 	}
-} // end FUNCTION help()
-
-/**
-* Prints the package version.
-*
-* @private
-* @example
-* version();
-* // => '#.#.#'
-*/
-function version() {
-	var msg = pkg.version.toString()+'\n';
-	process.stdout.write( msg, 'utf8' );
-	process.exit( 0 );
-} // end FUNCTION version()
-
-
-// VARIABLES //
-
-var args;
-var str;
+	console.log( lowercase( data.toString() ) ); // eslint-disable-line no-console
+} // end FUNCTION onRead()
 
 
 // MAIN //
 
-init();
-
-// Parse command-line arguments:
-args = parseArgs( process.argv.slice( 2 ), opts );
-
-if ( args.help ) {
-	return help();
-}
-if ( args.version ) {
-	return version();
-}
-
-// Check if we are receiving data from `stdin`...
-if ( !process.stdin.isTTY ) {
-	return stdin( onRead );
-}
-str = lowercase( args._[0] );
-console.log( str );
-
 /**
-* Callback invoked upon reading from `stdin`.
+* Main execution sequence.
 *
 * @private
-* @param {(Error|null)} error - error object
-* @param {Buffer} data - data
+* @returns {void}
 */
-function onRead( error, data ) {
-	var str;
-	if ( error ) {
-		return done( error );
+function main() {
+	var args;
+	var cli;
+
+	// Create a command-line interface:
+	cli = new CLI({
+		'pkg': require( './../package.json' ),
+		'options': require( './opts.json' ),
+		'help': readFileSync( join( __dirname, 'usage.txt' ), {
+			'encoding': 'utf8'
+		})
+	});
+	// Get any provided command-line arguments:
+	args = cli.args();
+
+	// Check if we are receiving data from `stdin`...
+	if ( !process.stdin.isTTY ) {
+		return stdin( onRead );
 	}
-	str = lowercase( data.toString() );
-	console.log( str );
-} // end FUNCTION onRead()
+	console.log( lowercase( args[ 0 ] ) ); // eslint-disable-line no-console
+} // end FUNCTION main()
+
+main();

lib/node_modules/@stdlib/string/lowercase/bin/usage.txt

@@ -1,5 +1,5 @@
 
-Usage: lowercase [options] <string>
+Usage: lowercase [options] [<string>]
 
 Options: