ci(bump_deps): attempt to link also commit diff

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

.github/bump_deps.sh

@@ -6,4 +6,17 @@ VAR=$3
 
 LAST_COMMIT=$(curl -s -H "Accept: application/vnd.github.VERSION.sha" "https://github.com/gitapi/repos/$REPO/commits/$BRANCH")
 
+# Read $VAR from Makefile (only first match)
+set +e
+CURRENT_COMMIT="$(grep -m1 "^$VAR?=" Makefile | cut -d'=' -f2)"
+set -e
+
 sed -i Makefile -e "s/$VAR?=.*/$VAR?=$LAST_COMMIT/"
+
+if [ -z "$CURRENT_COMMIT" ]; then
+    echo "Could not find $VAR in Makefile."
+    exit 0
+fi
+
+echo "Updated $VAR from $CURRENT_COMMIT to $LAST_COMMIT." > "$REPO_message.txt"
+echo "https://github.com/$REPO/compare/$CURRENT_COMMIT..$LAST_COMMIT" >> "$REPO_message.txt"

.github/workflows/bump_deps.yaml

@@ -40,8 +40,14 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Bump dependencies 🔧
+        id: bump
         run: |
           bash .github/bump_deps.sh ${{ matrix.repository }} ${{ matrix.branch }} ${{ matrix.variable }}
+          {
+            echo 'message<<EOF'
+            cat "${{ matrix.repository }}_message.txt"
+            echo EOF
+          } >> "$GITHUB_OUTPUT"
       - name: Create Pull Request
         uses: peter-evans/create-pull-request@v6
         with:
@@ -50,7 +56,7 @@ jobs:
           commit-message: ':arrow_up: Update ${{ matrix.repository }}'
           title: 'chore: :arrow_up: Update ${{ matrix.repository }}'
           branch: "update/${{ matrix.variable }}"
-          body: Bump of ${{ matrix.repository }} version
+          body:  ${{ steps.bump.outputs.message }}
           signoff: true