Removing stuff we no longer use

lib/commander.js

@@ -12,7 +12,6 @@ var EventEmitter = require('events').EventEmitter
   , path = require('path')
   , tty = require('tty')
   , basename = path.basename
-  , util = require('util');
 
 /**
  * Expose the root command.
@@ -463,10 +462,7 @@ Command.prototype.parseOptions = function(argv){
  */
 
 Command.prototype.missingArgument = function(name){
-  this.error();
-  this.error(util.format("  error: missing required argument `%s'", name));
-  this.error();
-  this.exit(1)
+  this.emit('missing', name)
 };
 
 /**
@@ -478,14 +474,11 @@ Command.prototype.missingArgument = function(name){
  */
 
 Command.prototype.optionMissingArgument = function(option, flag){
-  this.error();
   if (flag) {
-    this.error(util.format("  error: option `%s' argument missing, got `%s'", option.flags, flag));
+    this.emit('missingOption', option.flags, flag)
   } else {
-    this.error(util.format("  error: option `%s' argument missing", option.flags));
+    this.emit('missingOption', option.flags)
   }
-  this.error();
-  this.exit(1);
 };
 
 /**
@@ -496,10 +489,7 @@ Command.prototype.optionMissingArgument = function(option, flag){
  */
 
 Command.prototype.unknownOption = function(flag){
-  this.error();
-  this.error(util.format("  error: unknown option `%s'", flag));
-  this.error();
-  this.exit(1);
+  this.emit('unknownOption', flag)
 };
 
 /**
@@ -519,7 +509,6 @@ Command.prototype.version = function(str){
   this.option('-v, --version', 'output the version number');
   this.on('version', function(){
     this.log(str);
-    this.exit(0);
   });
   return this;
 };
@@ -683,180 +672,6 @@ Command.prototype.promptSingleLine = function(str, fn){
   }).resume();
 };
 
-/**
- * Multi-line prompt.
- *
- * @param {String} str
- * @param {Function} fn
- * @api private
- */
-
-Command.prototype.promptMultiLine = function(str, fn){
-  var buf = '';
-  this.log(str);
-  process.stdin.setEncoding('utf8');
-  process.stdin.on('data', function(val){
-    if ('\n' == val) {
-      process.stdin.removeAllListeners('data');
-      fn(buf);
-    } else {
-      buf += val;
-    }
-  }).resume();
-};
-
-/**
- * Prompt `str` and callback `fn(val)`
- *
- * Commander supports single-line and multi-line prompts.
- * To issue a single-line prompt simply add white-space
- * to the end of `str`, something like "name: ", whereas
- * for a multi-line prompt omit this "description:".
- *
- *
- * Examples:
- *
- *     program.prompt('Username: ', function(name){
- *       this.log('hi %s', name);
- *     });
- *     
- *     program.prompt('Description:', function(desc){
- *       this.log('description was "%s"', desc.trim());
- *     });
- *
- * @param {String} str
- * @param {Function} fn
- * @api public
- */
-
-Command.prototype.prompt = function(str, fn){
-  if (/ $/.test(str)) return this.promptSingleLine.apply(this, arguments);
-  this.promptMultiLine(str, fn);
-};
-
-/**
- * Prompt for password with `str`, `mask` char and callback `fn(val)`.
- *
- * The mask string defaults to '', aka no output is
- * written while typing, you may want to use "*" etc.
- *
- * Examples:
- *
- *     program.password('Password: ', function(pass){
- *       this.log('got "%s"', pass);
- *       process.stdin.destroy();
- *     });
- *
- *     program.password('Password: ', '*', function(pass){
- *       this.log('got "%s"', pass);
- *       process.stdin.destroy();
- *     });
- *
- * @param {String} str
- * @param {String} mask
- * @param {Function} fn
- * @api public
- */
-
-Command.prototype.password = function(str, mask, fn){
-  var self = this
-    , buf = '';
-
-  // default mask
-  if ('function' == typeof mask) {
-    fn = mask;
-    mask = '';
-  }
-
-  tty.setRawMode(true);
-  process.stdout.write(str);
-
-  // keypress
-  process.stdin.on('keypress', function(c, key){
-    if (key && 'enter' == key.name) {
-      this.log();
-      process.stdin.removeAllListeners('keypress');
-      tty.setRawMode(false);
-      if (!buf.trim().length) return self.password(str, mask, fn);
-      fn(buf);
-      return;
-    }
-
-    if (key && key.ctrl && 'c' == key.name) {
-      this.log(util.format('%s', buf));
-      this.exit();
-    }
-
-    process.stdout.write(mask);
-    buf += c;
-  }).resume();
-};
-
-/**
- * Confirmation prompt with `str` and callback `fn(bool)`
- *
- * Examples:
- *
- *      program.confirm('continue? ', function(ok){
- *        this.log(' got %j', ok);
- *        process.stdin.destroy();
- *      });
- *
- * @param {String} str
- * @param {Function} fn
- * @api public
- */
-
-
-Command.prototype.confirm = function(str, fn){
-  var self = this;
-  this.prompt(str, function(ok){
-    if (!ok.trim()) {
-      return self.confirm(str, fn);
-    }
-    fn(parseBool(ok));
-  });
-};
-
-/**
- * Choice prompt with `list` of items and callback `fn(index, item)`
- *
- * Examples:
- *
- *      var list = ['tobi', 'loki', 'jane', 'manny', 'luna'];
- *      
- *      this.log('Choose the coolest pet:');
- *      program.choose(list, function(i){
- *        this.log('you chose %d "%s"', i, list[i]);
- *        process.stdin.destroy();
- *      });
- *
- * @param {Array} list
- * @param {Function} fn
- * @api public
- */
-
-Command.prototype.choose = function(list, fn){
-  var self = this;
-
-  list.forEach(function(item, i){
-    this.log(util.format('  %d) %s', i + 1, item));
-  });
-
-  function again() {
-    self.prompt('  : ', function(val){
-      val = parseInt(val, 10) - 1;
-      if (null == list[val]) {
-        again();
-      } else {
-        fn(val, list[val]);
-      }
-    });
-  }
-
-  again();
-};
-
 Command.prototype.exit = process.exit
 Command.prototype.log = console.log
 Command.prototype.error = console.error
@@ -906,8 +721,3 @@ function pad(str, width) {
  */
 
 exports.option('-h, --help', 'output usage information');
-exports.on('help', function(){
-  this.log(this.helpInformation());
-  exports.emit('--help');
-  this.exit()
-});