ci: update workflows

- use node 16.9
- adda  script to extract changelog

.github/workflows/ci.yml

@@ -13,10 +13,10 @@ jobs:
             contents: read
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v2
+            - uses: actions/checkout@v4
             - uses: actions/setup-node@v3
               with:
-                  node-version: "14.18"
+                  node-version: "16.9"
                   cache: npm
             - name: Build and test coverage
               run: |

.github/workflows/release.yml

@@ -7,17 +7,15 @@ jobs:
     test:
         uses: ./.github/workflows/ci.yml
     release:
-        # based on esbuild release script (MIT licensed):
-        # https://github.com/evanw/esbuild/blob/master/.github/workflows/release.yml
         needs: test
         permissions:
             contents: write
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v3
+            - uses: actions/checkout@v4
             - uses: actions/setup-node@v3
               with:
-                  node-version: "14.18"
+                  node-version: "16.9"
                   cache: npm
             - name: Build
               run: |
@@ -26,14 +24,12 @@ jobs:
             - name: Extract changelog
               run: |
                   VERSION="${GITHUB_REF_NAME#v}"
-                  CHANGELOG="$(awk -v ver="$VERSION" '/^## / { if (p) { exit }; if ($2 == ver) { p=1; next} } p' CHANGELOG.md)"
-                  echo "CHANGELOG<<EOF" >> $GITHUB_ENV
-                  echo "$CHANGELOG" >> $GITHUB_ENV
-                  echo "EOF" >> $GITHUB_ENV
+                  sh scripts/print-changelog.sh "$VERSION" >| ${{ github.workspace }}/RELEASE_NOTES
             - name: Create GitHub Release
               uses: softprops/action-gh-release@v1
               with:
-                  body: ${{ env.CHANGELOG }}
+                  body_path: ${{ github.workspace }}/RELEASE_NOTES
                   prerelease: true
+                  fail_on_unmatched_files: true
                   files: |
                     ./dist/bare

scripts/print-changelog.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+set -eu
+
+# Print a changelog section (default: first section).
+
+VERSION=''
+if test -n "${1:-}" && grep -Eq "^## $1($| )" CHANGELOG.md; then
+    # The specified version has a dedicated section in the changelog
+    VERSION="$1"
+fi
+
+# print Changelog of $VERSION
+awk -v version="$VERSION" '/^## / { if (p) { exit }; if (version == "" || $2 == version) { p=1; next} } p' CHANGELOG.md