Document quiet mode

Author: orta

README.md

@@ -88,10 +88,11 @@ packages/documentation/copy/es/**/*.ts @KingDarBoja [translate] [es]
 
 ## Config
 
-There are four options available at the moment:
+There are five options available at the moment:
 
 - `cwd`, which can be used to determine the root folder to look for CODEOWNER files in.
 - `merge_method`, which can be `merge` (default), `squash` or `rebase`, depending on what you want the action to do.
+- `quiet` - does not output a message saying who can merge PRs
 
 ```yml
 - name: Run Codeowners merge check

action.yml

@@ -27,6 +27,11 @@ inputs:
     default: ''
     required: false
 
+  quiet:
+    description: 'Do not say "this PR can be merged by x, y, z" out loud'
+    default: ''
+    required: false
+
 runs:
   using: 'node12'
   main: 'index.js'

index.js

@@ -57,6 +57,9 @@ async function commentOnMergablePRs() {
     process.exit(0)
   }
 
+  
+
+
   // Determine who has access to merge every file in this PR
   const ownersWhoHaveAccessToAllFilesInPR = []
   codeowners.users.forEach(owner => {
@@ -97,7 +100,11 @@ async function commentOnMergablePRs() {
 This section of the codebase is owned by ${owners} - if they write a comment saying "LGTM" then it will be merged.
 ${ourSignature}`
 
-  await octokit.issues.createComment({ ...thisRepo, issue_number: pr.number, body: message });
+
+  const skipOutput = core.getInput('quiet')
+  if (!skipOutput) {
+    await octokit.issues.createComment({ ...thisRepo, issue_number: pr.number, body: message });
+  }
 
   // Add labels
   for (const label of codeowners.labels) {