feat: Execute a script command via CLI like hubot -e some command

bin/Hubot.mjs

@@ -16,7 +16,8 @@ const switches = [
   ['-n', '--name HUBOT_NAME', 'The name of the robot in chat'],
   ['-r', '--require PATH', 'Alternative scripts path'],
   ['-t', '--config-check', "Test hubot's config to make sure it won't fail at startup"],
-  ['-v', '--version', 'Displays the version of hubot installed']
+  ['-v', '--version', 'Displays the version of hubot installed'],
+  ['-e', '--execute', 'Runs the command as if it were a hubot command']
 ]
 
 const options = {
@@ -66,6 +67,10 @@ Parser.on('name', (opt, value) => {
   options.name = value
 })
 
+Parser.on('execute', (opt, value) => {
+  options.execute = value
+})
+
 Parser.on('require', (opt, value) => {
   options.scripts.push(value)
 })
@@ -141,7 +146,12 @@ async function loadExternalScripts () {
     process.exit(0)
   }
 
-  robot.adapter.once('connected', loadScripts)
-
+  robot.adapter.once('connected', async () => {
+    await loadScripts()
+    if (options.execute) {
+      await robot.receive(new Hubot.TextMessage(new Hubot.User('shell', { room: '#shell' }), `@${robot.name} ${options.execute.trim()}`))
+      robot.shutdown()
+    }
+  })
   await robot.run()
 })()

test/Hubot_test.mjs

@@ -48,6 +48,7 @@ describe('Running bin/Hubot.mjs', () => {
   -r, --require PATH
   -t, --config-check
   -v, --version
+  -e, --execute
 `
     let actual = ''
     hubot.stdout.on('data', (data) => {
@@ -61,6 +62,25 @@ describe('Running bin/Hubot.mjs', () => {
       done()
     })
   })
+  it('should execute the command when run with --execute or -e', (t, done) => {
+    const expected = "HELO World! I'm Hubot."
+    const commandText = 'helo'
+    const env = Object.assign({}, process.env, { NOLOG: 'off' })
+    const hubot = process.platform === 'win32'
+      ? spawn('node', ['./bin/Hubot.mjs', '-d', '--execute', commandText, '-r', 'test/scripts'], { env })
+      : spawn('./bin/hubot', ['-d', '--execute', commandText, '-r', 'test/scripts'], { env })
+    let actual = ''
+    hubot.stdout.on('data', (data) => {
+      actual += data.toString()
+    })
+    hubot.stderr.on('data', (data) => {
+      actual += data.toString()
+    })
+    hubot.on('close', (code) => {
+      assert.ok(actual.includes(expected))
+      done()
+    })
+  })
 })
 
 describe('Running hubot with args', () => {