List drives in OS X

lib/actions/drive.coffee

@@ -0,0 +1,24 @@
+visuals = require('resin-cli-visuals')
+drive = require('../drive/drive')
+
+exports.list =
+	signature: 'drives'
+	description: 'list available drives'
+	help: '''
+		Use this command to list all drives that are connected to your machine.
+
+		Examples:
+			$ resin drives
+	'''
+	permission: 'user'
+	action: (params, options, done) ->
+		drive.listDrives (error, drives) ->
+			return done(error) if error?
+
+			console.log visuals.widgets.table.horizontal drives, [
+				'device'
+				'description'
+				'size'
+			]
+
+		return done()

lib/actions/index.coffee

@@ -2,6 +2,7 @@ module.exports =
 	app: require('./app')
 	info: require('./info')
 	auth: require('./auth')
+	drive: require('./drive')
 	device: require('./device')
 	env: require('./environment-variables')
 	keys: require('./keys')

lib/app.coffee

@@ -67,7 +67,10 @@ capitano.command(actions.device.info)
 capitano.command(actions.device.remove)
 capitano.command(actions.device.identify)
 
-# ---------- Device Module ----------
+# ---------- Drive Module ----------
+capitano.command(actions.drive.list)
+
+# ---------- Notes Module ----------
 capitano.command(actions.notes.set)
 
 # ---------- Preferences Module ----------

lib/drive/drive.coffee

@@ -5,6 +5,7 @@ _ = require('lodash-contrib')
 async = require('async')
 childProcess = require('child_process')
 progressStream = require('progress-stream')
+DriveOSX = require('./osx')
 
 IS_WINDOWS = os.platform() is 'win32'
 DISK_IO_FLAGS = 'rs+'
@@ -96,3 +97,10 @@ exports.writeImage = (devicePath, imagePath, options = {}, callback = _.noop) ->
 			delete error.code
 
 		return callback(error)
+
+exports.listDrives = (callback) ->
+	if os.platform() is 'darwin'
+		DriveOSX.list(callback)
+	else
+		error = new Error('Your OS does not yet support this command')
+		return callback(error)

lib/drive/osx.coffee

@@ -0,0 +1,40 @@
+_ = require('lodash')
+os = require('os')
+childProcess = require('child_process')
+tableParser = require('table-parser')
+
+exports.list = (callback) ->
+	if os.platform() is 'darwin'
+		childProcess.exec 'diskutil list', {}, (error, stdout, stderr) ->
+			return callback(error) if error?
+
+			if not _.isEmpty(stderr)
+				return callback(new Error(stderr))
+
+			result = tableParser.parse(stdout)
+
+			result = _.map result, (row) ->
+				return _.compact _.flatten _.values(row)
+
+			result = _.filter result, (row) ->
+				return row[0] is '0:'
+
+			result = _.map result, (row) ->
+				return _.rest(row)
+
+			result = _.map result, (row) ->
+
+				device = row.pop()
+				sizeMeasure = row.pop()
+				size = row.pop()
+
+				return {
+					device: "/dev/#{device}"
+					size: "#{size}#{sizeMeasure}"
+					description: row.join(' ')
+				}
+
+			return callback(null, result)
+	else
+		error = new Error('Your OS does not yet support this command')
+		return callback(error)

package.json

@@ -58,6 +58,7 @@
     "progress-stream": "^0.5.0",
     "resin-cli-visuals": "0.0.3",
     "resin-sdk": "git+https://git@github.com/resin-io/resin-sdk.git",
+    "table-parser": "0.0.3",
     "underscore.string": "~2.4.0"
   }
 }