cli: add --detached mode

cli/index.js

@@ -1,5 +1,6 @@
 const minimist = require('minimist')
 const debug = require('debug')('cypress:cli')
+const _ = require('lodash')
 const args = minimist(process.argv.slice(2))
 
 const reportError = (err) => {
@@ -23,8 +24,11 @@ switch (args.exec) {
       .catch(reportError)
     break
   case 'open':
+    // require('./lib/exec/open').start()
+    _.remove(process.argv, (arg) => arg === '--exec')
     debug('opening Cypress application')
-    require('./lib/exec/open').start()
+    debug('CLI arguments', process.argv)
+    require('./lib/cli').init()
     break
   default:
     // export our node module interface

cli/lib/cli.js

@@ -1,12 +1,13 @@
 const _ = require('lodash')
 const commander = require('commander')
 const { oneLine } = require('common-tags')
+const debug = require('debug')('cypress:cli')
 
 const coerceFalse = (arg) => {
   return arg !== 'false'
 }
 
-const parseOpts = (opts) => _.pick(opts, 'spec', 'reporter', 'reporterOptions', 'path', 'destination', 'port', 'env', 'cypressVersion', 'config', 'record', 'key', 'browser')
+const parseOpts = (opts) => _.pick(opts, 'spec', 'reporter', 'reporterOptions', 'path', 'destination', 'port', 'env', 'cypressVersion', 'config', 'record', 'key', 'browser', 'detached')
 
 const descriptions = {
   record: 'records the run. sends test results, screenshots and videos to your Cypress Dashboard.',
@@ -21,6 +22,7 @@ const descriptions = {
     runs Cypress in the browser with the given name.
     note: using an external browser will cancel video recording of tests.
   `,
+  detached: 'runs Cypress application in detached mode',
 }
 
 const text = (description) => {
@@ -57,6 +59,7 @@ module.exports = {
       .option('-p, --port <port>',         text('port'))
       .option('-e, --env <env>',           text('env'))
       .option('-c, --config <config>',     text('config'))
+      .option('-d, --detached [bool]',     text('detached'), coerceFalse)
       .action((opts) => require('./exec/open').start(parseOpts(opts)))
 
     program
@@ -69,6 +72,7 @@ module.exports = {
       .description('Verifies that Cypress is installed correctly and executable')
       .action(() => require('./download/utils').verify({ force: true }))
 
+    debug('cli starts with arguments %j', process.argv)
     program.parse(process.argv)
 
     //# if the process.argv.length

cli/lib/exec/open.js

@@ -1,5 +1,6 @@
 const downloadUtils = require('../download/utils')
 const spawn = require('./spawn')
+const debug = require('debug')('cypress:cli')
 
 module.exports = {
   start (options = {}) {
@@ -16,11 +17,13 @@ module.exports = {
     if (options.port) {
       args.push('--port', options.port)
     }
+    debug('opening from options %j', options)
+    debug('command line arguments %j', args)
 
     return downloadUtils.verify()
     .then(() => {
       return spawn.start(args, {
-        detached: false,
+        detached: Boolean(options.detached),
         stdio: ['ignore', 'ignore', 'ignore'],
       })
     })

cli/lib/exec/spawn.js

@@ -1,6 +1,5 @@
 const _ = require('lodash')
 const cp = require('child_process')
-// const chalk = require('chalk')
 const Promise = require('bluebird')
 const debug = require('debug')('cypress:cli')