Add GitHub Action workflow for bumping MAD-NG release (#30)

* Add bump-mad-ng-release.yml GitHub Action workflow

Co-authored-by: jgray-19 <[email protected]>

* Address code review feedback on bump-mad-ng-release workflow

Co-authored-by: jgray-19 <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: jgray-19 <[email protected]>

Author: Copilot

.github/workflows/bump-mad-ng-release.yml

@@ -0,0 +1,115 @@
+# This workflow updates the MAD-NG version across the repository
+# It updates the version in workflows, test inputs, and changelog
+
+name: Bump MAD-NG release
+
+on:
+  workflow_dispatch:
+    inputs:
+      new_version:
+        description: 'New MAD-NG version (e.g., 1.1.7)'
+        required: true
+        type: string
+      major_minor:
+        description: 'Major.minor version for URL path (e.g., 1.1)'
+        required: true
+        type: string
+      changelog_entry:
+        description: 'Changelog entry for this update (optional)'
+        required: false
+        type: string
+        default: ''
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  bump-version:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Validate inputs
+        run: |
+          # Validate new_version format (semver: x.y.z)
+          if ! echo "${{ inputs.new_version }}" | grep -qE '^[0-9]+\.[0-9]+\.[0-9]+$'; then
+            echo "Error: new_version must be in semver format (e.g., 1.1.7)"
+            exit 1
+          fi
+          # Validate major_minor format (x.y)
+          if ! echo "${{ inputs.major_minor }}" | grep -qE '^[0-9]+\.[0-9]+$'; then
+            echo "Error: major_minor must be in x.y format (e.g., 1.1)"
+            exit 1
+          fi
+          echo "Inputs validated successfully"
+
+      - name: Get current version
+        id: current
+        run: |
+          # Extract current version from test-pymadng.yml
+          CURRENT_VERSION=$(grep -oP 'mad-linux-\K[0-9]+\.[0-9]+\.[0-9]+' .github/workflows/test-pymadng.yml | head -1)
+          CURRENT_MAJOR_MINOR=$(grep -oP 'releases/madng/\K[0-9]+\.[0-9]+' .github/workflows/test-pymadng.yml | head -1)
+          
+          # Validate extracted versions
+          if [ -z "$CURRENT_VERSION" ] || [ -z "$CURRENT_MAJOR_MINOR" ]; then
+            echo "Error: Could not extract current version from test-pymadng.yml"
+            exit 1
+          fi
+          
+          echo "version=$CURRENT_VERSION" >> "$GITHUB_OUTPUT"
+          echo "major_minor=$CURRENT_MAJOR_MINOR" >> "$GITHUB_OUTPUT"
+          echo "Current MAD-NG version: $CURRENT_VERSION"
+          echo "Current major.minor: $CURRENT_MAJOR_MINOR"
+
+      - name: Update workflow files
+        run: |
+          # Update both workflow files with the new MAD-NG version
+          for workflow in test-pymadng.yml python-publish.yml; do
+            sed -i "s|releases/madng/${{ steps.current.outputs.major_minor }}/mad-linux-${{ steps.current.outputs.version }}|releases/madng/${{ inputs.major_minor }}/mad-linux-${{ inputs.new_version }}|g" ".github/workflows/$workflow"
+            sed -i "s|releases/madng/${{ steps.current.outputs.major_minor }}/mad-macos-${{ steps.current.outputs.version }}|releases/madng/${{ inputs.major_minor }}/mad-macos-${{ inputs.new_version }}|g" ".github/workflows/$workflow"
+            echo "Updated $workflow"
+          done
+
+      - name: Update example.log
+        run: |
+          sed -i "s/\[${{ steps.current.outputs.version }}\]/[${{ inputs.new_version }}]/g" tests/inputs/example.log
+          echo "Updated example.log"
+
+      - name: Update CHANGELOG.md
+        run: |
+          CHANGELOG_ENTRY="${{ inputs.changelog_entry }}"
+          if [ -z "$CHANGELOG_ENTRY" ]; then
+            CHANGELOG_ENTRY="Update to MAD-NG ${{ inputs.new_version }}"
+          fi
+          
+          # Get current date in YYYY/MM/DD format
+          CURRENT_DATE=$(date +%Y/%m/%d)
+          
+          # Prepend new version entry to CHANGELOG.md with proper format
+          TEMP_FILE=$(mktemp)
+          echo "$CHANGELOG_ENTRY ($CURRENT_DATE)" > "$TEMP_FILE"
+          echo "" >> "$TEMP_FILE"
+          cat CHANGELOG.md >> "$TEMP_FILE"
+          mv "$TEMP_FILE" CHANGELOG.md
+          echo "Updated CHANGELOG.md"
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v7
+        with:
+          commit-message: "Bump MAD-NG version to ${{ inputs.new_version }}"
+          title: "Bump MAD-NG version to ${{ inputs.new_version }}"
+          body: |
+            This PR updates the MAD-NG version from ${{ steps.current.outputs.version }} to ${{ inputs.new_version }}.
+
+            ## Changes
+            - Updated `.github/workflows/test-pymadng.yml`
+            - Updated `.github/workflows/python-publish.yml`
+            - Updated `tests/inputs/example.log`
+            - Updated `CHANGELOG.md`
+
+            ## MAD-NG Release
+            New version: ${{ inputs.new_version }}
+            Major.minor: ${{ inputs.major_minor }}
+          branch: bump-madng-${{ inputs.new_version }}
+          base: main