From b63433f30acce2fcd61ee4573bd0af3250060c96 Mon Sep 17 00:00:00 2001
From: Nick Satterly <nfsatterly@gmail.com>
Date: Sun, 7 Nov 2021 18:17:05 +0100
Subject: [PATCH] Do not fail if config file does not exist

---
 src/main.ts | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/main.ts b/src/main.ts
index 7986c0c8..9bf8bb5c 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,5 +1,5 @@
 import * as core from '@actions/core'
-import {readFileSync} from 'fs'
+import {existsSync, readFileSync} from 'fs'
 import {send, ConfigOptions} from './slack'
 import * as yaml from 'js-yaml'
 
@@ -14,7 +14,15 @@ async function run(): Promise<void> {
     core.debug(JSON.stringify(readEvent()))
 
     const configFile = core.getInput('config', {required: false})
-    const config = yaml.load(readFileSync(configFile, 'utf-8'), {schema: yaml.FAILSAFE_SCHEMA}) as ConfigOptions
+    let config: ConfigOptions = {}
+    try {
+      core.info(`Reading config file ${configFile}...`)
+      if (existsSync(configFile)) {
+        config = yaml.load(readFileSync(configFile, 'utf-8'), {schema: yaml.FAILSAFE_SCHEMA}) as ConfigOptions
+      }
+    } catch (error) {
+      core.info(error.message)
+    }
     core.debug(yaml.dump(config))
 
     const url = process.env.SLACK_WEBHOOK_URL as string