From f39c2f6259bbd85b20c16815bc8560bc5fe38989 Mon Sep 17 00:00:00 2001
From: Brandon Keepers <bkeepers@github.com>
Date: Sun, 19 Mar 2017 11:51:45 -0500
Subject: [PATCH] Look for private-key.pem

---
 bin/probot-run | 30 ++++++++++++++++--------------
 1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/bin/probot-run b/bin/probot-run
index fb8f3017..f29996e6 100755
--- a/bin/probot-run
+++ b/bin/probot-run
@@ -9,14 +9,26 @@ program
   .option('-i, --integration <id>', 'ID of the GitHub Integration', process.env.INTEGRATION_ID)
   .option('-s, --secret <secret>', 'Webhook secret of the GitHub Integration', process.env.WEBHOOK_SECRET || 'development')
   .option('-p, --port <n>', 'Port to start the server on', process.env.PORT || 3000)
-  .option('-c, --cert <file>', 'Path to certificate of the GitHub Integration', readCert, process.env.CERT || process.env.PRIVATE_KEY)
+  .option('-c, --cert <file>', 'Path to certificate of the GitHub Integration', path => {
+    try {
+      return require('fs').readFileSync(path);
+    } catch (err) {
+      console.warn(err.message);
+      process.exit(1);
+    }
+  }, process.env.CERT || process.env.PRIVATE_KEY)
   .parse(process.argv);
 
-function readCert(path) {
+if(!program.integration) {
+  console.warn("Missing GitHub Integration ID.\nUse --integration flag or set INTEGRATION_ID environment variable.");
+  program.help();
+}
+
+if(!program.cert) {
   try {
-    return require('fs').readFileSync(path);
+    program.cert = require('fs').readFileSync('private-key.pem');
   } catch (err) {
-    console.warn(err.message);
+    console.warn("Missing GitHub Integration certificate.\nUse --cert flag or set CERT environment variable.");
     process.exit(1);
   }
 }
@@ -25,16 +37,6 @@ const pkgConf = require('pkg-conf');
 const resolve = require('resolve').sync;
 const createProbot = require('../');
 
-if(!program.integration) {
-  console.warn("Missing GitHub Integration ID.\nUse --integration flag or set INTEGRATION_ID environment variable.");
-  process.exit(1);
-}
-
-if(!program.cert) {
-  console.warn("Missing GitHub Integration certificate.\nUse --cert flag or set CERT environment variable.");
-  process.exit(1);
-}
-
 const probot = createProbot({
   id: program.integration,
   secret: program.secret,