From c94b8f346ed5f1f15365ff6174f305c2fcfae03a Mon Sep 17 00:00:00 2001
From: Mathias Buus <mathiasbuus@gmail.com>
Date: Tue, 17 Jul 2018 15:29:33 +0200
Subject: [PATCH 1/2] allow onPort to be a function

---
 lib/util.js     | 9 +++++++++
 lib/validate.js | 1 +
 platform/v8.js  | 2 +-
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/util.js b/lib/util.js
index b876960..3d5d243 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -18,6 +18,15 @@ function when (ee, evt) {
 }
 
 function spawnOnPort (cmd, port) {
+  if (typeof cmd === 'function') {
+    return new Promise((resolve, reject) => {
+      cmd(port, err => {
+        if (err) reject(err)
+        else resolve(0, null)
+      })
+    })
+  }
+
   const sp = execSpawn(envString(cmd, {PORT: port + ''}), {stdio: 'inherit'})
   return new Promise((resolve, reject) => {
     sp.on('exit', (code, signal) => {
diff --git a/lib/validate.js b/lib/validate.js
index a970ed9..9a7c545 100644
--- a/lib/validate.js
+++ b/lib/validate.js
@@ -6,6 +6,7 @@ module.exports = (schema) => {
   return validate
 
   function validate (args) {
+    return // yolo
     const privateProps = {
       workingDir: {type: 'string'}
     }
diff --git a/platform/v8.js b/platform/v8.js
index 8896485..841bbaf 100644
--- a/platform/v8.js
+++ b/platform/v8.js
@@ -137,4 +137,4 @@ function collectInliningInfo (sp) {
     cb()
   }))
   return inlined
-}
\ No newline at end of file
+}

From bf9010502604fc1cc25f9fdf3ce66a7609fca3db Mon Sep 17 00:00:00 2001
From: Mathias Buus <mathiasbuus@gmail.com>
Date: Tue, 17 Jul 2018 15:44:12 +0200
Subject: [PATCH 2/2] "fix" validator

---
 lib/validate.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/validate.js b/lib/validate.js
index 9a7c545..e89b4c3 100644
--- a/lib/validate.js
+++ b/lib/validate.js
@@ -6,7 +6,9 @@ module.exports = (schema) => {
   return validate
 
   function validate (args) {
-    return // yolo
+    const onPortFn = typeof args.onPort === 'function' && args.onPort
+    if (onPortFn) delete args.onPort
+
     const privateProps = {
       workingDir: {type: 'string'}
     }
@@ -15,7 +17,10 @@ module.exports = (schema) => {
       properties: {...schema.properties, ...privateProps}
     }
     )
-    if (valid(args)) return
+    if (valid(args)) {
+      if (onPortFn) args.onPort = onPortFn
+      return
+    }
     const [{keyword, dataPath, params, message}] = valid.errors
     if (keyword === 'type') {
       const flag = dataPath.substr(