Add an optional message config parameter for warning and unassign messages so that they sound friendly

Author: compwron

action.yml

@@ -9,10 +9,18 @@ inputs:
     description: 'Number of hours to wait before unassigning an issue'
     required: false
     default: 168 # 7 days
+  unassign_inactive_message:
+    description: 'Message posted on issue when unassigning'
+    required: false
+    default: "You’ve just been unassigned from this ticket due to inactivity – but feel free to pick it back up (or a new one!) in the future! Thank you again for your contribution to this project."
   warning_inactive_in_hours:
     description: 'Number of hours to wait before posting a warning message in an issue'
     required: false
     default: 120 # 5 days
+  warning_inactive_message:
+    description: 'Message posted on issue as unassign warning'
+    required: false
+    default: "Thanks for picking up this issue and supporting this project! It looks like there hasn’t been any activity on this ticket in a while. To keep things moving, you will be unassigned from this issue soon if there’s no new activity on it by then. But we encourage you to pick this issue (or a new one) back up in the future!"
 runs:
   using: 'node12'
   main: 'index.js'

index.js

@@ -2,7 +2,9 @@ const core = require('@actions/core');
 const github = require('@actions/github');
 const token = core.getInput('token');
 const unassignInactiveInHours = core.getInput('unassign_inactive_in_hours');
+const unassignInactiveMessage = core.getInput('unassign_inactive_message');
 const warningInactiveInHours = core.getInput('warning_inactive_in_hours');
+const warningInactiveMessage = core.getInput('warning_inactive_message');
 const repoOwner = github.context.repo.owner;
 const repo = github.context.repo.repo;
 const octokit = github.getOctokit(token);
@@ -117,11 +119,12 @@ async function main() {
       // Unassign the issue //
       ////////////////////////
       // Post a message
-      const body = `This issue has been inactive for ${timeInactiveInHours} ` +
+      const body =  `This issue has been inactive for ${timeInactiveInHours} ` +
                     `hours (${(timeInactiveInHours/24).toFixed(2)} days) ` +
                     `and is past the limit of ${unassignInactiveInHours} ` +
                     `hours (${(unassignInactiveInHours/24).toFixed(2)} days) ` +
-                    `so is being unassigned.`;
+                    `so is being unassigned.` +
+                    `${unassignInactiveMessage} \n `
       try {
         await octokit.issues.createComment({
           owner: repoOwner,
@@ -172,7 +175,8 @@ async function main() {
         const body = `This issue has been inactive for ${timeInactiveInHours} ` +
                      `hours (${(timeInactiveInHours/24).toFixed(2)} days) ` +
                      `and will be automatically unassigned after ${willBeUnassignedInHours} ` +
-                     `more hours (${(willBeUnassignedInHours/24).toFixed(2)} days).`;
+                     `more hours (${(willBeUnassignedInHours/24).toFixed(2)} days).` +
+                     `${warningInactiveMessage}`;
         try {
           await octokit.issues.createComment({
             owner: repoOwner,