Initalize changelog test workflow

.github/workflows/changelog_test.yml

@@ -0,0 +1,56 @@
+name: Changelog Check
+
+on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+
+jobs:
+  changelog-check:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Debug changed files
+        run: |
+          echo "Changed files:"
+          echo "${{ github.event.pull_request.changed_files }}"
+
+      - name: Get all changed markdown files
+        id: changed-markdown-files
+        uses: tj-actions/changed-files@v44
+        with:
+          # Avoid using single or double quotes for multiline patterns
+          files: |
+              **.md
+
+      - name: List all changed files markdown files
+        if: steps.changed-markdown-files.outputs.any_changed == 'true'
+        env:
+          ALL_CHANGED_FILES: ${{ steps.changed-markdown-files.outputs.all_changed_files }}
+        run: |
+          for file in ${ALL_CHANGED_FILES}; do
+            echo "$file was changed"
+          done
+
+      - name: Check for CHANGELOG.md update
+        id: changelog-check
+        run: |
+          if ! grep -q "CHANGELOG.md" <<< "${{ steps.changed-markdown-files.outputs.all_changed_files }}"; then
+            echo "Each PR must include an update to the CHANGELOG.md file."
+            echo "::set-output name=comment::Each PR must include an update to the CHANGELOG.md file."
+            echo "::set-output name=changelog-updated::false"
+          else
+            echo "CHANGELOG.md update found."
+            echo "::set-output name=changelog-updated::true"
+          fi
+
+      - name: Prevent PR merge if CHANGELOG.md is not updated
+        if: steps.changelog-check.outputs.changelog-updated == 'false'
+        run: |
+          echo "The CHANGELOG.md file must be updated before merging."
+          exit 1

CHANGELOG.md

@@ -12,7 +12,7 @@ Includes New Features, Enhancements, and Bug Fixes.
 
 ### Documentation
 
-* Changelog initialization (#26, #39, #40, #46, #47, #48, #50, #51, #52)
+* Changelog initialization (#26, #39, #40, #46, #47, #48, #50, #51, #52, #54)
 * .gitignore (#21, #34, #38)
 * Repo readme (#22)
 * Abstract (#12)