Change: Replace git-release Docker action with gh release + getChangelog (#10)

antonyurchenko/git-release hasn't been updated since Jan 2024 and ran
its own independent Keep a Changelog parser, separate from the one
already configured via org.jetbrains.changelog for patching. Using two
different parsers for the same file risked them disagreeing on what
counts as a valid section.

Replaced it with plain `gh release create`/`gh release delete` (already
available on runners, no Docker pull), fed by the changelog plugin's
own `getChangelog` task:
- Tag-triggered runs: `getChangelog --project-version=X` extracts that
  version's notes, `gh release create` publishes the tagged release.
- Branch-triggered runs: `getChangelog --unreleased` extracts the
  current Unreleased content, and the `latest-snapshot` pre-release is
  deleted and recreated pointing at the new commit (same "update in
  place" behavior git-release provided via PRE_RELEASE/UNRELEASED).

Verified `getChangelog --no-header --output-file` locally for both the
--project-version and --unreleased cases against the real changelog:
clean section content, no header line, no reference-link footer -
ready to use directly as release notes.

Author: tajobe

.github/workflows/publish-workflow.yml

@@ -23,18 +23,25 @@ jobs:
         with:
           name: build
           path: build
-      - name: Release
-        uses: docker://antonyurchenko/git-release:v6.0.0
+      - name: Extract release notes
+        run: |
+          if [ "${{ github.ref_type }}" = "tag" ]; then
+            ./gradlew getChangelog --console=plain -q --no-header --project-version="${{ needs.build.outputs.version }}" --output-file=build/release-notes.md
+          else
+            ./gradlew getChangelog --console=plain -q --no-header --unreleased --output-file=build/release-notes.md
+          fi
+      - name: Create GitHub release for tag
+        if: ${{ github.ref_type == 'tag' }}
+        run: gh release create "${{ github.ref_name }}" build/*.jar --title "${{ needs.build.outputs.version }}" --notes-file build/release-notes.md
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Update latest-snapshot pre-release
+        if: ${{ github.ref_type == 'branch' }}
+        run: |
+          gh release delete latest-snapshot --yes --cleanup-tag || true
+          gh release create latest-snapshot build/*.jar --title "${{ needs.build.outputs.version }}" --prerelease --notes-file build/release-notes.md --target "${{ github.sha }}"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          RELEASE_NAME: ${{ needs.build.outputs.version }}
-          PRE_RELEASE: ${{ github.ref_type == 'branch' }}
-          UNRELEASED: ${{ github.ref_type == 'branch' && 'update' || '' }}
-          UNRELEASED_TAG: latest-snapshot
-          ALLOW_EMPTY_CHANGELOG: ${{ github.ref_type == 'branch' && 'true' || 'false' }}
-        with:
-          args: |
-            build/*.jar
       - name: Check for tagged release
         id: check_tag
         run: |

CHANGELOG.md

@@ -1,6 +1,9 @@
 # Changelog
 
 ## [Unreleased]
+### Changed
+- Replace the `antonyurchenko/git-release` Docker action with `gh release create`/`gh release delete`, using the `org.jetbrains.changelog` plugin's `getChangelog` task to extract release notes instead of a separate third-party changelog parser
+
 ### Fixed
 - Changelog plugin no longer pre-populates the new Unreleased section with empty Keep a Changelog group headers
 - Release hook now fails loudly (instead of silently skipping the whole release) if the Unreleased section has no content when a release runs