Revert "avoid need for foreman"

This reverts commit 49ac2f21eb.

bin/run-mastodon.js

@@ -21,8 +21,7 @@ OTP_SECRET=foobarfoobarfoobarfoobarfoobarfoobarfoobarfoobarfoobarfoobarfoobarfoo
 
 const mastodonDir = path.join(dir, '../mastodon')
 
-let railsChildProc
-let webpackChildProc
+let childProc
 
 async function cloneMastodon () {
   try {
@@ -55,6 +54,7 @@ async function runMastodon () {
   console.log('Running mastodon...')
   let cmds = [
     'gem install bundler',
+    'gem install foreman',
     'bundle install',
     'yarn --pure-lockfile'
   ]
@@ -63,19 +63,11 @@ async function runMastodon () {
     console.log(cmd)
     await exec(cmd, {cwd: mastodonDir})
   }
+  const promise = spawn('foreman', ['start'], {cwd: mastodonDir})
   const log = fs.createWriteStream('mastodon.log', {flags: 'a'})
-
-  railsChildProc = spawn(
-    'bundle', ['exec', 'rails', 'server'], {cwd: mastodonDir}
-  ).childProcess
-  railsChildProc.stdout.pipe(log)
-  railsChildProc.stderr.pipe(log)
-
-  webpackChildProc = spawn(
-    './bin/webpack-dev-server', [], {cwd: mastodonDir}
-  ).childProcess
-  webpackChildProc.stdout.pipe(log)
-  webpackChildProc.stderr.pipe(log)
+  childProc = promise.childProcess
+  childProc.stdout.pipe(log)
+  childProc.stderr.pipe(log)
 }
 
 async function main () {
@@ -87,14 +79,10 @@ async function main () {
   await waitForMastodonUiToStart()
 }
 
-function shutdownMastodon () {
-  if (railsChildProc) {
-    console.log('killing rails child process')
-    railsChildProc.kill()
-  }
-  if (webpackChildProc) {
-    console.log('killing webpack child process')
-    webpackChildProc.kill()
+function shutdownMastodon() {
+  if (childProc) {
+    console.log('killing child process')
+    childProc.kill()
   }
 }