Generate release notes from changelog

.github/generate_release_notes.py

@@ -0,0 +1,32 @@
+import re
+
+def main() -> None:
+    """Generate release notes for the latest GitHub release."""
+
+    with open("CHANGELOG.md", encoding="utf-8") as file:
+        changelog = file.read()
+
+    first_section = re.search(r"^### ", changelog, re.MULTILINE)
+    if first_section is None:
+        raise RuntimeError("Could not find the first changelog section.")
+
+    next_release = re.search(r"^## ", changelog[first_section.start():], re.MULTILINE)
+
+    if next_release is None:
+        raise RuntimeError("Could not find the next release heading.")
+
+    latest_changes = changelog[first_section.start() : first_section.start() + next_release.start()].strip()
+
+    release_notes = f"""A fast code formatter for GDScript in Godot 4.
+
+## Changelog
+
+{latest_changes}
+
+Learn more about the formatter in the [GDScript Formatter documentation](https://www.gdquest.com/library/gdscript_formatter/)
+"""
+
+    print(release_notes)
+
+if __name__ == "__main__":
+    main()

.github/workflows/release.yml

@@ -122,17 +122,12 @@ jobs:
           path: artifacts
           merge-multiple: true
 
+      - name: Generate release notes
+        run: python .github/generate_release_notes.py > release-notes.md
+
       - name: Create Release
         run: |
-          gh release create "${{ github.ref_name }}" \
-            --verify-tag \
-            --draft \
-            --title "GDScript formatter ${{ github.ref_name }}" \
-            --notes "A fast code formatter for GDScript in Godot 4.
-
-            You can learn how to install, use, configure, and integrate the formatter into your workflow on this page:
-
-            https://www.gdquest.com/library/gdscript_formatter/"
+          gh release create "${{ github.ref_name }}" --verify-tag --draft --title "GDScript formatter ${{ github.ref_name }}" --notes-file release-notes.md
 
           gh release upload "${{ github.ref_name }}" artifacts/*.zip
           gh release edit "${{ github.ref_name }}" --draft=false