Add changelog to release body

Author: rphovley

.github/workflows/build_and_publish.yaml

@@ -19,6 +19,8 @@ jobs:
     runs-on: ${{ matrix.platform }}
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Fetch all history for all tags and branches
 
       - name: Rust Cache
         uses: Swatinem/rust-cache@v2
@@ -79,6 +81,23 @@ jobs:
           VERSION=$(node -p "require('./package.json').version")
           echo "VERSION=$VERSION" >> $GITHUB_ENV
 
+      - name: Get last release
+        id: last_release
+        run: |
+          last_release=$(curl -s -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
+            "https://api.github.com/repos/${{ github.repository }}/releases/latest" | \
+            jq -r .tag_name)
+          echo "Last release tag: $last_release"
+          echo "last_release=$last_release" >> $GITHUB_OUTPUT
+
+      - name: Create Changelog
+        id: create_changelog
+        run: |
+          git log ${{ steps.last_release.outputs.last_release }}..HEAD --pretty=format:"- %s %h%n" > changelog.md
+          echo "changelog<<EOF" >> $GITHUB_OUTPUT
+          echo "$(cat changelog.md)" >> $GITHUB_OUTPUT
+          echo "EOF" >> $GITHUB_OUTPUT
+
       - name: build and publish
         uses: tauri-apps/tauri-action@v0
         env:
@@ -102,7 +121,10 @@ jobs:
         with:
           tagName: v__VERSION__
           releaseName: "v__VERSION__"
-          releaseBody: "See the assets to download this version and install."
+          releaseBody: |
+            Changes in this Release:
+
+            ${{ steps.create_changelog.outputs.changelog }}
           args: ${{ matrix.args }}
           includeUpdaterJson: true
           includeDebug: true