separate action for coverage update.

.github/workflows/main.yml

@@ -22,18 +22,10 @@ jobs:
         java-version: '17'
         cache: 'maven'
 
-    # from https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
     - name: Build and Test with Maven
       timeout-minutes: 15
       run: ./mvnw -B test
 
-    - name: Generate JaCoCo Badge
-      uses: cicirello/jacoco-badge-generator@v2
-      with:
-        generate-branches-badge: true
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
     - name: Commit and push the badge (if it changed)
       uses: EndBug/add-and-commit@v7
       with:

.github/workflows/update-jacoco-badge.yml

@@ -0,0 +1,22 @@
+name: Update Jacoco Coverage Badge
+
+on:
+  push:
+    branches:
+      - '*'         # matches every branch that doesn't contain a '/'
+      - '*/*'       # matches every branch containing a single '/'
+      - '**'        # matches every branch
+      - '!master'   # excludes master
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Build and Test with Maven
+        timeout-minutes: 15
+        run: ./mvnw -B test
+
+      - name: Generate JaCoCo Badge
+        uses: cicirello/jacoco-badge-generator@v2
+        with:
+          generate-branches-badge: true

README.md

@@ -1,6 +1,8 @@
 # Robot Overlord
 ![workflow](https://github.com/MarginallyClever/Robot-Overlord-App/actions/workflows/main.yml/badge.svg)
+![coverage](https://github.com/MarginallyClever/Robot-Overlord-App/actions/workflows/main.yml/jacoco.svg)
 [![Javadoc](https://img.shields.io/badge/JavaDoc-Online-green)](https://marginallyclever.github.io/Robot-Overlord-App/)
+
 # Robot Overlord #
 ![Preview image](Screenshot_2023-12-23_120520.png)