+++ /dev/null
-/**
- * Module dependencies.
- */
-
-var EventEmitter = require('events').EventEmitter;
-var spawn = require('child_process').spawn;
-var path = require('path');
-var dirname = path.dirname;
-var basename = path.basename;
-var fs = require('fs');
-
-/**
- * Inherit `Command` from `EventEmitter.prototype`.
- */
-
-require('util').inherits(Command, EventEmitter);
-
-/**
- * Expose the root command.
- */
-
-exports = module.exports = new Command();
-
-/**
- * Expose `Command`.
- */
-
-exports.Command = Command;
-
-/**
- * Expose `Option`.
- */
-
-exports.Option = Option;
-
-/**
- * Initialize a new `Option` with the given `flags` and `description`.
- *
- * @param {String} flags
- * @param {String} description
- * @api public
- */
-
-function Option(flags, description) {
- this.flags = flags;
- this.required = ~flags.indexOf('<');
- this.optional = ~flags.indexOf('[');
- this.bool = !~flags.indexOf('-no-');
- flags = flags.split(/[ ,|]+/);
- if (flags.length > 1 && !/^[[<]/.test(flags[1])) this.short = flags.shift();
- this.long = flags.shift();
- this.description = description || '';
-}
-
-/**
- * Return option name.
- *
- * @return {String}
- * @api private
- */
-
-Option.prototype.name = function() {
- return this.long
- .replace('--', '')
- .replace('no-', '');
-};
-
-/**
- * Return option name, in a camelcase format that can be used
- * as a object attribute key.
- *
- * @return {String}
- * @api private
- */
-
-Option.prototype.attributeName = function() {
- return camelcase(this.name());
-};
-
-/**
- * Check if `arg` matches the short or long flag.
- *
- * @param {String} arg
- * @return {Boolean}
- * @api private
- */
-
-Option.prototype.is = function(arg) {
- return this.short === arg || this.long === arg;
-};
-
-/**
- * Initialize a new `Command`.
- *
- * @param {String} name
- * @api public
- */
-
-function Command(name) {
- this.commands = [];
- this.options = [];
- this._execs = {};
- this._allowUnknownOption = false;
- this._args = [];
- this._name = name || '';
-}
-
-/**
- * Add command `name`.
- *
- * The `.action()` callback is invoked when the
- * command `name` is specified via __ARGV__,
- * and the remaining arguments are applied to the
- * function for access.
- *
- * When the `name` is "*" an un-matched command
- * will be passed as the first arg, followed by
- * the rest of __ARGV__ remaining.
- *
- * Examples:
- *
- * program
- * .version('0.0.1')
- * .option('-C, --chdir <path>', 'change the working directory')
- * .option('-c, --config <path>', 'set config path. defaults to ./deploy.conf')
- * .option('-T, --no-tests', 'ignore test hook')
- *
- * program
- * .command('setup')
- * .description('run remote setup commands')
- * .action(function() {
- * console.log('setup');
- * });
- *
- * program
- * .command('exec <cmd>')
- * .description('run the given remote command')
- * .action(function(cmd) {
- * console.log('exec "%s"', cmd);
- * });
- *
- * program
- * .command('teardown <dir> [otherDirs...]')
- * .description('run teardown commands')
- * .action(function(dir, otherDirs) {
- * console.log('dir "%s"', dir);
- * if (otherDirs) {
- * otherDirs.forEach(function (oDir) {
- * console.log('dir "%s"', oDir);
- * });
- * }
- * });
- *
- * program
- * .command('*')
- * .description('deploy the given env')
- * .action(function(env) {
- * console.log('deploying "%s"', env);
- * });
- *
- * program.parse(process.argv);
- *
- * @param {String} name
- * @param {String} [desc] for git-style sub-commands
- * @return {Command} the new command
- * @api public
- */
-
-Command.prototype.command = function(name, desc, opts) {
- if (typeof desc === 'object' && desc !== null) {
- opts = desc;
- desc = null;
- }
- opts = opts || {};
- var args = name.split(/ +/);
- var cmd = new Command(args.shift());
-
- if (desc) {
- cmd.description(desc);
- this.executables = true;
- this._execs[cmd._name] = true;
- if (opts.isDefault) this.defaultExecutable = cmd._name;
- }
- cmd._noHelp = !!opts.noHelp;
- this.commands.push(cmd);
- cmd.parseExpectedArgs(args);
- cmd.parent = this;
-
- if (desc) return this;
- return cmd;
-};
-
-/**
- * Define argument syntax for the top-level command.
- *
- * @api public
- */
-
-Command.prototype.arguments = function(desc) {
- return this.parseExpectedArgs(desc.split(/ +/));
-};
-
-/**
- * Add an implicit `help [cmd]` subcommand
- * which invokes `--help` for the given command.
- *
- * @api private
- */
-
-Command.prototype.addImplicitHelpCommand = function() {
- this.command('help [cmd]', 'display help for [cmd]');
-};
-
-/**
- * Parse expected `args`.
- *
- * For example `["[type]"]` becomes `[{ required: false, name: 'type' }]`.
- *
- * @param {Array} args
- * @return {Command} for chaining
- * @api public
- */
-
-Command.prototype.parseExpectedArgs = function(args) {
- if (!args.length) return;
- var self = this;
- args.forEach(function(arg) {
- var argDetails = {
- required: false,
- name: '',
- variadic: false
- };
-
- switch (arg[0]) {
- case '<':
- argDetails.required = true;
- argDetails.name = arg.slice(1, -1);
- break;
- case '[':
- argDetails.name = arg.slice(1, -1);
- break;
- }
-
- if (argDetails.name.length > 3 && argDetails.name.slice(-3) === '...') {
- argDetails.variadic = true;
- argDetails.name = argDetails.name.slice(0, -3);
- }
- if (argDetails.name) {
- self._args.push(argDetails);
- }
- });
- return this;
-};
-
-/**
- * Register callback `fn` for the command.
- *
- * Examples:
- *
- * program
- * .command('help')
- * .description('display verbose help')
- * .action(function() {
- * // output help here
- * });
- *
- * @param {Function} fn
- * @return {Command} for chaining
- * @api public
- */
-
-Command.prototype.action = function(fn) {
- var self = this;
- var listener = function(args, unknown) {
- // Parse any so-far unknown options
- args = args || [];
- unknown = unknown || [];
-
- var parsed = self.parseOptions(unknown);
-
- // Output help if necessary
- outputHelpIfNecessary(self, parsed.unknown);
-
- // If there are still any unknown options, then we simply
- // die, unless someone asked for help, in which case we give it
- // to them, and then we die.
- if (parsed.unknown.length > 0) {
- self.unknownOption(parsed.unknown[0]);
- }
-
- // Leftover arguments need to be pushed back. Fixes issue #56
- if (parsed.args.length) args = parsed.args.concat(args);
-
- self._args.forEach(function(arg, i) {
- if (arg.required && args[i] == null) {
- self.missingArgument(arg.name);
- } else if (arg.variadic) {
- if (i !== self._args.length - 1) {
- self.variadicArgNotLast(arg.name);
- }
-
- args[i] = args.splice(i);
- }
- });
-
- // Always append ourselves to the end of the arguments,
- // to make sure we match the number of arguments the user
- // expects
- if (self._args.length) {
- args[self._args.length] = self;
- } else {
- args.push(self);
- }
-
- fn.apply(self, args);
- };
- var parent = this.parent || this;
- var name = parent === this ? '*' : this._name;
- parent.on('command:' + name, listener);
- if (this._alias) parent.on('command:' + this._alias, listener);
- return this;
-};
-
-/**
- * Define option with `flags`, `description` and optional
- * coercion `fn`.
- *
- * The `flags` string should contain both the short and long flags,
- * separated by comma, a pipe or space. The following are all valid
- * all will output this way when `--help` is used.
- *
- * "-p, --pepper"
- * "-p|--pepper"
- * "-p --pepper"
- *
- * Examples:
- *
- * // simple boolean defaulting to false
- * program.option('-p, --pepper', 'add pepper');
- *
- * --pepper
- * program.pepper
- * // => Boolean
- *
- * // simple boolean defaulting to true
- * program.option('-C, --no-cheese', 'remove cheese');
- *
- * program.cheese
- * // => true
- *
- * --no-cheese
- * program.cheese
- * // => false
- *
- * // required argument
- * program.option('-C, --chdir <path>', 'change the working directory');
- *
- * --chdir /tmp
- * program.chdir
- * // => "/tmp"
- *
- * // optional argument
- * program.option('-c, --cheese [type]', 'add cheese [marble]');
- *
- * @param {String} flags
- * @param {String} description
- * @param {Function|*} [fn] or default
- * @param {*} [defaultValue]
- * @return {Command} for chaining
- * @api public
- */
-
-Command.prototype.option = function(flags, description, fn, defaultValue) {
- var self = this,
- option = new Option(flags, description),
- oname = option.name(),
- name = option.attributeName();
-
- // default as 3rd arg
- if (typeof fn !== 'function') {
- if (fn instanceof RegExp) {
- var regex = fn;
- fn = function(val, def) {
- var m = regex.exec(val);
- return m ? m[0] : def;
- };
- } else {
- defaultValue = fn;
- fn = null;
- }
- }
-
- // preassign default value only for --no-*, [optional], or <required>
- if (!option.bool || option.optional || option.required) {
- // when --no-* we make sure default is true
- if (!option.bool) defaultValue = true;
- // preassign only if we have a default
- if (defaultValue !== undefined) {
- self[name] = defaultValue;
- option.defaultValue = defaultValue;
- }
- }
-
- // register the option
- this.options.push(option);
-
- // when it's passed assign the value
- // and conditionally invoke the callback
- this.on('option:' + oname, function(val) {
- // coercion
- if (val !== null && fn) {
- val = fn(val, self[name] === undefined ? defaultValue : self[name]);
- }
-
- // unassigned or bool
- if (typeof self[name] === 'boolean' || typeof self[name] === 'undefined') {
- // if no value, bool true, and we have a default, then use it!
- if (val == null) {
- self[name] = option.bool
- ? defaultValue || true
- : false;
- } else {
- self[name] = val;
- }
- } else if (val !== null) {
- // reassign
- self[name] = val;
- }
- });
-
- return this;
-};
-
-/**
- * Allow unknown options on the command line.
- *
- * @param {Boolean} arg if `true` or omitted, no error will be thrown
- * for unknown options.
- * @api public
- */
-Command.prototype.allowUnknownOption = function(arg) {
- this._allowUnknownOption = arguments.length === 0 || arg;
- return this;
-};
-
-/**
- * Parse `argv`, settings options and invoking commands when defined.
- *
- * @param {Array} argv
- * @return {Command} for chaining
- * @api public
- */
-
-Command.prototype.parse = function(argv) {
- // implicit help
- if (this.executables) this.addImplicitHelpCommand();
-
- // store raw args
- this.rawArgs = argv;
-
- // guess name
- this._name = this._name || basename(argv[1], '.js');
-
- // github-style sub-commands with no sub-command
- if (this.executables && argv.length < 3 && !this.defaultExecutable) {
- // this user needs help
- argv.push('--help');
- }
-
- // process argv
- var parsed = this.parseOptions(this.normalize(argv.slice(2)));
- var args = this.args = parsed.args;
-
- var result = this.parseArgs(this.args, parsed.unknown);
-
- // executable sub-commands
- var name = result.args[0];
-
- var aliasCommand = null;
- // check alias of sub commands
- if (name) {
- aliasCommand = this.commands.filter(function(command) {
- return command.alias() === name;
- })[0];
- }
-
- if (this._execs[name] && typeof this._execs[name] !== 'function') {
- return this.executeSubCommand(argv, args, parsed.unknown);
- } else if (aliasCommand) {
- // is alias of a subCommand
- args[0] = aliasCommand._name;
- return this.executeSubCommand(argv, args, parsed.unknown);
- } else if (this.defaultExecutable) {
- // use the default subcommand
- args.unshift(this.defaultExecutable);
- return this.executeSubCommand(argv, args, parsed.unknown);
- }
-
- return result;
-};
-
-/**
- * Execute a sub-command executable.
- *
- * @param {Array} argv
- * @param {Array} args
- * @param {Array} unknown
- * @api private
- */
-
-Command.prototype.executeSubCommand = function(argv, args, unknown) {
- args = args.concat(unknown);
-
- if (!args.length) this.help();
- if (args[0] === 'help' && args.length === 1) this.help();
-
- // <cmd> --help
- if (args[0] === 'help') {
- args[0] = args[1];
- args[1] = '--help';
- }
-
- // executable
- var f = argv[1];
- // name of the subcommand, link `pm-install`
- var bin = basename(f, '.js') + '-' + args[0];
-
- // In case of globally installed, get the base dir where executable
- // subcommand file should be located at
- var baseDir,
- link = fs.lstatSync(f).isSymbolicLink() ? fs.readlinkSync(f) : f;
-
- // when symbolink is relative path
- if (link !== f && link.charAt(0) !== '/') {
- link = path.join(dirname(f), link);
- }
- baseDir = dirname(link);
-
- // prefer local `./<bin>` to bin in the $PATH
- var localBin = path.join(baseDir, bin);
-
- // whether bin file is a js script with explicit `.js` extension
- var isExplicitJS = false;
- if (exists(localBin + '.js')) {
- bin = localBin + '.js';
- isExplicitJS = true;
- } else if (exists(localBin)) {
- bin = localBin;
- }
-
- args = args.slice(1);
-
- var proc;
- if (process.platform !== 'win32') {
- if (isExplicitJS) {
- args.unshift(bin);
- // add executable arguments to spawn
- args = (process.execArgv || []).concat(args);
-
- proc = spawn(process.argv[0], args, { stdio: 'inherit', customFds: [0, 1, 2] });
- } else {
- proc = spawn(bin, args, { stdio: 'inherit', customFds: [0, 1, 2] });
- }
- } else {
- args.unshift(bin);
- proc = spawn(process.execPath, args, { stdio: 'inherit' });
- }
-
- var signals = ['SIGUSR1', 'SIGUSR2', 'SIGTERM', 'SIGINT', 'SIGHUP'];
- signals.forEach(function(signal) {
- process.on(signal, function() {
- if (proc.killed === false && proc.exitCode === null) {
- proc.kill(signal);
- }
- });
- });
- proc.on('close', process.exit.bind(process));
- proc.on('error', function(err) {
- if (err.code === 'ENOENT') {
- console.error('\n %s(1) does not exist, try --help\n', bin);
- } else if (err.code === 'EACCES') {
- console.error('\n %s(1) not executable. try chmod or run with root\n', bin);
- }
- process.exit(1);
- });
-
- // Store the reference to the child process
- this.runningCommand = proc;
-};
-
-/**
- * Normalize `args`, splitting joined short flags. For example
- * the arg "-abc" is equivalent to "-a -b -c".
- * This also normalizes equal sign and splits "--abc=def" into "--abc def".
- *
- * @param {Array} args
- * @return {Array}
- * @api private
- */
-
-Command.prototype.normalize = function(args) {
- var ret = [],
- arg,
- lastOpt,
- index;
-
- for (var i = 0, len = args.length; i < len; ++i) {
- arg = args[i];
- if (i > 0) {
- lastOpt = this.optionFor(args[i - 1]);
- }
-
- if (arg === '--') {
- // Honor option terminator
- ret = ret.concat(args.slice(i));
- break;
- } else if (lastOpt && lastOpt.required) {
- ret.push(arg);
- } else if (arg.length > 1 && arg[0] === '-' && arg[1] !== '-') {
- arg.slice(1).split('').forEach(function(c) {
- ret.push('-' + c);
- });
- } else if (/^--/.test(arg) && ~(index = arg.indexOf('='))) {
- ret.push(arg.slice(0, index), arg.slice(index + 1));
- } else {
- ret.push(arg);
- }
- }
-
- return ret;
-};
-
-/**
- * Parse command `args`.
- *
- * When listener(s) are available those
- * callbacks are invoked, otherwise the "*"
- * event is emitted and those actions are invoked.
- *
- * @param {Array} args
- * @return {Command} for chaining
- * @api private
- */
-
-Command.prototype.parseArgs = function(args, unknown) {
- var name;
-
- if (args.length) {
- name = args[0];
- if (this.listeners('command:' + name).length) {
- this.emit('command:' + args.shift(), args, unknown);
- } else {
- this.emit('command:*', args);
- }
- } else {
- outputHelpIfNecessary(this, unknown);
-
- // If there were no args and we have unknown options,
- // then they are extraneous and we need to error.
- if (unknown.length > 0) {
- this.unknownOption(unknown[0]);
- }
- }
-
- return this;
-};
-
-/**
- * Return an option matching `arg` if any.
- *
- * @param {String} arg
- * @return {Option}
- * @api private
- */
-
-Command.prototype.optionFor = function(arg) {
- for (var i = 0, len = this.options.length; i < len; ++i) {
- if (this.options[i].is(arg)) {
- return this.options[i];
- }
- }
-};
-
-/**
- * Parse options from `argv` returning `argv`
- * void of these options.
- *
- * @param {Array} argv
- * @return {Array}
- * @api public
- */
-
-Command.prototype.parseOptions = function(argv) {
- var args = [],
- len = argv.length,
- literal,
- option,
- arg;
-
- var unknownOptions = [];
-
- // parse options
- for (var i = 0; i < len; ++i) {
- arg = argv[i];
-
- // literal args after --
- if (literal) {
- args.push(arg);
- continue;
- }
-
- if (arg === '--') {
- literal = true;
- continue;
- }
-
- // find matching Option
- option = this.optionFor(arg);
-
- // option is defined
- if (option) {
- // requires arg
- if (option.required) {
- arg = argv[++i];
- if (arg == null) return this.optionMissingArgument(option);
- this.emit('option:' + option.name(), arg);
- // optional arg
- } else if (option.optional) {
- arg = argv[i + 1];
- if (arg == null || (arg[0] === '-' && arg !== '-')) {
- arg = null;
- } else {
- ++i;
- }
- this.emit('option:' + option.name(), arg);
- // bool
- } else {
- this.emit('option:' + option.name());
- }
- continue;
- }
-
- // looks like an option
- if (arg.length > 1 && arg[0] === '-') {
- unknownOptions.push(arg);
-
- // If the next argument looks like it might be
- // an argument for this option, we pass it on.
- // If it isn't, then it'll simply be ignored
- if ((i + 1) < argv.length && argv[i + 1][0] !== '-') {
- unknownOptions.push(argv[++i]);
- }
- continue;
- }
-
- // arg
- args.push(arg);
- }
-
- return { args: args, unknown: unknownOptions };
-};
-
-/**
- * Return an object containing options as key-value pairs
- *
- * @return {Object}
- * @api public
- */
-Command.prototype.opts = function() {
- var result = {},
- len = this.options.length;
-
- for (var i = 0; i < len; i++) {
- var key = this.options[i].attributeName();
- result[key] = key === this._versionOptionName ? this._version : this[key];
- }
- return result;
-};
-
-/**
- * Argument `name` is missing.
- *
- * @param {String} name
- * @api private
- */
-
-Command.prototype.missingArgument = function(name) {
- console.error();
- console.error(" error: missing required argument `%s'", name);
- console.error();
- process.exit(1);
-};
-
-/**
- * `Option` is missing an argument, but received `flag` or nothing.
- *
- * @param {String} option
- * @param {String} flag
- * @api private
- */
-
-Command.prototype.optionMissingArgument = function(option, flag) {
- console.error();
- if (flag) {
- console.error(" error: option `%s' argument missing, got `%s'", option.flags, flag);
- } else {
- console.error(" error: option `%s' argument missing", option.flags);
- }
- console.error();
- process.exit(1);
-};
-
-/**
- * Unknown option `flag`.
- *
- * @param {String} flag
- * @api private
- */
-
-Command.prototype.unknownOption = function(flag) {
- if (this._allowUnknownOption) return;
- console.error();
- console.error(" error: unknown option `%s'", flag);
- console.error();
- process.exit(1);
-};
-
-/**
- * Variadic argument with `name` is not the last argument as required.
- *
- * @param {String} name
- * @api private
- */
-
-Command.prototype.variadicArgNotLast = function(name) {
- console.error();
- console.error(" error: variadic arguments must be last `%s'", name);
- console.error();
- process.exit(1);
-};
-
-/**
- * Set the program version to `str`.
- *
- * This method auto-registers the "-V, --version" flag
- * which will print the version number when passed.
- *
- * @param {String} str
- * @param {String} [flags]
- * @return {Command} for chaining
- * @api public
- */
-
-Command.prototype.version = function(str, flags) {
- if (arguments.length === 0) return this._version;
- this._version = str;
- flags = flags || '-V, --version';
- var versionOption = new Option(flags, 'output the version number');
- this._versionOptionName = versionOption.long.substr(2) || 'version';
- this.options.push(versionOption);
- this.on('option:' + this._versionOptionName, function() {
- process.stdout.write(str + '\n');
- process.exit(0);
- });
- return this;
-};
-
-/**
- * Set the description to `str`.
- *
- * @param {String} str
- * @param {Object} argsDescription
- * @return {String|Command}
- * @api public
- */
-
-Command.prototype.description = function(str, argsDescription) {
- if (arguments.length === 0) return this._description;
- this._description = str;
- this._argsDescription = argsDescription;
- return this;
-};
-
-/**
- * Set an alias for the command
- *
- * @param {String} alias
- * @return {String|Command}
- * @api public
- */
-
-Command.prototype.alias = function(alias) {
- var command = this;
- if (this.commands.length !== 0) {
- command = this.commands[this.commands.length - 1];
- }
-
- if (arguments.length === 0) return command._alias;
-
- if (alias === command._name) throw new Error('Command alias can\'t be the same as its name');
-
- command._alias = alias;
- return this;
-};
-
-/**
- * Set / get the command usage `str`.
- *
- * @param {String} str
- * @return {String|Command}
- * @api public
- */
-
-Command.prototype.usage = function(str) {
- var args = this._args.map(function(arg) {
- return humanReadableArgName(arg);
- });
-
- var usage = '[options]' +
- (this.commands.length ? ' [command]' : '') +
- (this._args.length ? ' ' + args.join(' ') : '');
-
- if (arguments.length === 0) return this._usage || usage;
- this._usage = str;
-
- return this;
-};
-
-/**
- * Get or set the name of the command
- *
- * @param {String} str
- * @return {String|Command}
- * @api public
- */
-
-Command.prototype.name = function(str) {
- if (arguments.length === 0) return this._name;
- this._name = str;
- return this;
-};
-
-/**
- * Return prepared commands.
- *
- * @return {Array}
- * @api private
- */
-
-Command.prototype.prepareCommands = function() {
- return this.commands.filter(function(cmd) {
- return !cmd._noHelp;
- }).map(function(cmd) {
- var args = cmd._args.map(function(arg) {
- return humanReadableArgName(arg);
- }).join(' ');
-
- return [
- cmd._name +
- (cmd._alias ? '|' + cmd._alias : '') +
- (cmd.options.length ? ' [options]' : '') +
- (args ? ' ' + args : ''),
- cmd._description
- ];
- });
-};
-
-/**
- * Return the largest command length.
- *
- * @return {Number}
- * @api private
- */
-
-Command.prototype.largestCommandLength = function() {
- var commands = this.prepareCommands();
- return commands.reduce(function(max, command) {
- return Math.max(max, command[0].length);
- }, 0);
-};
-
-/**
- * Return the largest option length.
- *
- * @return {Number}
- * @api private
- */
-
-Command.prototype.largestOptionLength = function() {
- var options = [].slice.call(this.options);
- options.push({
- flags: '-h, --help'
- });
- return options.reduce(function(max, option) {
- return Math.max(max, option.flags.length);
- }, 0);
-};
-
-/**
- * Return the largest arg length.
- *
- * @return {Number}
- * @api private
- */
-
-Command.prototype.largestArgLength = function() {
- return this._args.reduce(function(max, arg) {
- return Math.max(max, arg.name.length);
- }, 0);
-};
-
-/**
- * Return the pad width.
- *
- * @return {Number}
- * @api private
- */
-
-Command.prototype.padWidth = function() {
- var width = this.largestOptionLength();
- if (this._argsDescription && this._args.length) {
- if (this.largestArgLength() > width) {
- width = this.largestArgLength();
- }
- }
-
- if (this.commands && this.commands.length) {
- if (this.largestCommandLength() > width) {
- width = this.largestCommandLength();
- }
- }
-
- return width;
-};
-
-/**
- * Return help for options.
- *
- * @return {String}
- * @api private
- */
-
-Command.prototype.optionHelp = function() {
- var width = this.padWidth();
-
- // Append the help information
- return this.options.map(function(option) {
- return pad(option.flags, width) + ' ' + option.description +
- ((option.bool && option.defaultValue !== undefined) ? ' (default: ' + option.defaultValue + ')' : '');
- }).concat([pad('-h, --help', width) + ' ' + 'output usage information'])
- .join('\n');
-};
-
-/**
- * Return command help documentation.
- *
- * @return {String}
- * @api private
- */
-
-Command.prototype.commandHelp = function() {
- if (!this.commands.length) return '';
-
- var commands = this.prepareCommands();
- var width = this.padWidth();
-
- return [
- ' Commands:',
- '',
- commands.map(function(cmd) {
- var desc = cmd[1] ? ' ' + cmd[1] : '';
- return (desc ? pad(cmd[0], width) : cmd[0]) + desc;
- }).join('\n').replace(/^/gm, ' '),
- ''
- ].join('\n');
-};
-
-/**
- * Return program help documentation.
- *
- * @return {String}
- * @api private
- */
-
-Command.prototype.helpInformation = function() {
- var desc = [];
- if (this._description) {
- desc = [
- ' ' + this._description,
- ''
- ];
-
- var argsDescription = this._argsDescription;
- if (argsDescription && this._args.length) {
- var width = this.padWidth();
- desc.push(' Arguments:');
- desc.push('');
- this._args.forEach(function(arg) {
- desc.push(' ' + pad(arg.name, width) + ' ' + argsDescription[arg.name]);
- });
- desc.push('');
- }
- }
-
- var cmdName = this._name;
- if (this._alias) {
- cmdName = cmdName + '|' + this._alias;
- }
- var usage = [
- '',
- ' Usage: ' + cmdName + ' ' + this.usage(),
- ''
- ];
-
- var cmds = [];
- var commandHelp = this.commandHelp();
- if (commandHelp) cmds = [commandHelp];
-
- var options = [
- ' Options:',
- '',
- '' + this.optionHelp().replace(/^/gm, ' '),
- ''
- ];
-
- return usage
- .concat(desc)
- .concat(options)
- .concat(cmds)
- .join('\n');
-};
-
-/**
- * Output help information for this command
- *
- * @api public
- */
-
-Command.prototype.outputHelp = function(cb) {
- if (!cb) {
- cb = function(passthru) {
- return passthru;
- };
- }
- process.stdout.write(cb(this.helpInformation()));
- this.emit('--help');
-};
-
-/**
- * Output help information and exit.
- *
- * @api public
- */
-
-Command.prototype.help = function(cb) {
- this.outputHelp(cb);
- process.exit();
-};
-
-/**
- * Camel-case the given `flag`
- *
- * @param {String} flag
- * @return {String}
- * @api private
- */
-
-function camelcase(flag) {
- return flag.split('-').reduce(function(str, word) {
- return str + word[0].toUpperCase() + word.slice(1);
- });
-}
-
-/**
- * Pad `str` to `width`.
- *
- * @param {String} str
- * @param {Number} width
- * @return {String}
- * @api private
- */
-
-function pad(str, width) {
- var len = Math.max(0, width - str.length);
- return str + Array(len + 1).join(' ');
-}
-
-/**
- * Output help information if necessary
- *
- * @param {Command} command to output help for
- * @param {Array} array of options to search for -h or --help
- * @api private
- */
-
-function outputHelpIfNecessary(cmd, options) {
- options = options || [];
- for (var i = 0; i < options.length; i++) {
- if (options[i] === '--help' || options[i] === '-h') {
- cmd.outputHelp();
- process.exit(0);
- }
- }
-}
-
-/**
- * Takes an argument an returns its human readable equivalent for help usage.
- *
- * @param {Object} arg
- * @return {String}
- * @api private
- */
-
-function humanReadableArgName(arg) {
- var nameOutput = arg.name + (arg.variadic === true ? '...' : '');
-
- return arg.required
- ? '<' + nameOutput + '>'
- : '[' + nameOutput + ']';
-}
-
-// for versions before node v0.8 when there weren't `fs.existsSync`
-function exists(file) {
- try {
- if (fs.statSync(file).isFile()) {
- return true;
- }
- } catch (e) {
- return false;
- }
-}
projects / VSoRC / .git / blobdiff