Initial take on the commands + renderers + cli.

lib/util/cli.js

@@ -0,0 +1,41 @@
+var mout = require('mout');
+var nopt = require('nopt');
+var renderers = require('../renderers');
+
+function readOptions(argv, options) {
+    var types;
+    var shorthands = {};
+
+    // Configure options that are common to all commands
+    options.help = { type: Boolean, shorthand: 'h' };
+    options.color = { type: Boolean };
+    options.silent = { type: Boolean, shorthand: 's' };
+    options.json = { type: Boolean };
+    options['log-levels'] = { type: String };
+
+    types = mout.object.map(options, function (option) {
+        return option.type;
+    });
+    mout.object.forOwn(options, function (option, name) {
+        shorthands[option.shorthand] = '--' + name;
+    });
+
+    return nopt(types, shorthands, argv);
+}
+
+function getRenderer(options) {
+    if (options.silent) {
+        return renderers.mute;
+    }
+
+    if (options.json) {
+        return renderers.json;
+    }
+
+    return options.color === false ?
+    renderers.cli.colorless :
+    renderers.cli.colorful;
+}
+
+module.exports.readOptions = readOptions;
+module.exports.createRenderer = getRenderer;