From 3db4c0f8a2445aeedcf5084f5bb49f3ae2ece09d Mon Sep 17 00:00:00 2001
From: Aart Jan Kaptijn <aartjan@newblack.io>
Date: Mon, 22 Nov 2021 16:51:18 +0100
Subject: [PATCH] only master

---
 src/main.ts               |  2 +-
 src/utils/github-utils.ts | 16 ++++++++++------
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/main.ts b/src/main.ts
index e8e1a76..5ed6d12 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -233,7 +233,7 @@ class TestReporter {
     core.setOutput('url', resp.data.url)
     core.setOutput('url_html', resp.data.html_url)
 
-    if (isFailed && this.slackWebhook) {
+    if (isFailed && this.slackWebhook && this.context.branch === 'master') {
       const webhook = new IncomingWebhook(this.slackWebhook)
       const passed = results.reduce((sum, tr) => sum + tr.passed, 0)
       const skipped = results.reduce((sum, tr) => sum + tr.skipped, 0)
diff --git a/src/utils/github-utils.ts b/src/utils/github-utils.ts
index 1d4add7..dca12df 100644
--- a/src/utils/github-utils.ts
+++ b/src/utils/github-utils.ts
@@ -2,13 +2,16 @@ import {createWriteStream} from 'fs'
 import * as core from '@actions/core'
 import * as github from '@actions/github'
 import {GitHub} from '@actions/github/lib/utils'
-import type {PullRequest} from '@octokit/webhooks-types'
 import * as stream from 'stream'
 import {promisify} from 'util'
 import got from 'got'
 const asyncStream = promisify(stream.pipeline)
 
-export function getCheckRunContext(): {sha: string; runId: number} {
+export function getCheckRunContext(): {sha: string; runId: number; branch: string} {
+  let branch = github.context.ref
+  if (branch.startsWith('refs/heads')) branch = branch.slice(11)
+  core.info('Branch: ' + branch)
+
   if (github.context.eventName === 'workflow_run') {
     core.info('Action was triggered by workflow_run: using SHA and RUN_ID from triggering workflow')
     const event = github.context.payload
@@ -17,18 +20,19 @@ export function getCheckRunContext(): {sha: string; runId: number} {
     }
     return {
       sha: event.workflow_run.head_commit.id,
-      runId: event.workflow_run.id
+      runId: event.workflow_run.id,
+      branch
     }
   }
 
   const runId = github.context.runId
   if (github.context.payload.pull_request) {
     core.info(`Action was triggered by ${github.context.eventName}: using SHA from head of source branch`)
-    const pr = github.context.payload.pull_request as PullRequest
-    return {sha: pr.head.sha, runId}
+    const pr = github.context.payload.pull_request;
+    return {sha: pr.head.sha, runId, branch}
   }
 
-  return {sha: github.context.sha, runId}
+  return {sha: github.context.sha, runId, branch}
 }
 
 export async function downloadArtifact(