ci: automatically tag commit and create release

.github/workflows/release-and-tag.yml

@@ -0,0 +1,54 @@
+name: Create new release on version bump
+
+permissions:
+  contents: write
+
+on:
+  push: { branches: ["main"] }
+
+jobs:
+  check-release:
+    name: Create release if it makes sense
+    runs-on: ubuntu-latest
+    steps:
+      - name: Clone repository
+        uses: actions/checkout@v4
+        with: { fetch-depth: 0 }
+
+      - name: Check if a new release is needed
+        id: info
+        env:
+          COMMIT_BEFORE: ${{ github.event.before }}
+          COMMIT_AFTER: ${{ github.event.after }}
+        shell: bash
+        run: |
+          mkdir -p dummy && echo 0 > dummy/revision.txt
+          cp utils/helium_version.py .
+
+          git checkout "$COMMIT_BEFORE" \
+            && OLD_VERSION=$(python3 helium_version.py --tree . --print)
+
+          git checkout "$COMMIT_AFTER" \
+            && NEW_VERSION=$(python3 helium_version.py --tree . --print)
+
+          if [ "$OLD_VERSION" != "$NEW_VERSION" ]; then
+            echo "version=$NEW_VERSION" >> "$GITHUB_OUTPUT"
+            {
+              printf '### Changelog\n```\n'
+              git log --oneline "$COMMIT_BEFORE..$COMMIT_AFTER"
+              echo '```'
+            } | tee body.md
+          fi
+
+      - name: Create Release
+        if: steps.info.outputs.version
+        id: create_release
+        uses: actions/create-release@latest
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ steps.info.outputs.version }}
+          release_name: ${{ steps.info.outputs.version }}
+          body_path: body.md
+          draft: false
+          prerelease: false

.github/workflows/release-on-tag.yml

@@ -1,24 +0,0 @@
-name: Create new empty release
-permissions:
-  contents: write
-
-on:
-  push:
-    tags:
-      - '*'
-
-jobs:
-  build:
-    name: Create Release
-    runs-on: ubuntu-latest
-    steps:
-      - name: Create Release
-        id: create_release
-        uses: actions/create-release@latest
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: ${{ github.ref }}
-          release_name: ${{ github.ref }}
-          draft: false
-          prerelease: false