ci: add latest-changelog.awk

.github/workflows/ci.yml

@@ -286,10 +286,14 @@ jobs:
  - name: Make source archive
  run: |
  ./contrib/release/make-archive.sh artifacts
+ - name: Latest Changes
+ run: |
+ ./contrib/release/latest-changelog.awk CHANGELOG.md >latest-changes.md
  - name: Draft Release
  uses: softprops/action-gh-release@v1
  with:
  draft: true
+ body_path: latest-changes.md
  fail_on_unmatched_files: true
  files: |
  artifacts/stgit-*.tar.gz

contrib/release/latest-changelog.awk

@@ -0,0 +1,30 @@
+#!/usr/bin/env -S awk -f
+
+# Extract the latest release notes from CHANGELOG.md.
+#
+# The h3 sections from the first h2 section are printed.
+
+BEGIN {
+ foundFirstH2 = 0
+ foundFirstH3 = 0
+ foundSecondH2 = 0
+}
+
+{
+ if (!foundFirstH2) {
+ if ($0 ~ /^## /) {
+ foundFirstH2 = 1
+ }
+ } else if (!foundFirstH3) {
+ if ($0 ~ /^### /) {
+ foundFirstH3 = 1
+ print $0
+ }
+ } else if (!foundSecondH2) {
+ if ($0 ~ /^## /) {
+ foundSecondH2 = 1
+ } else {
+ print $0
+ }
+ }
+}