Fix image name replacement in builder workflow

.github/workflows/builder.yml

@@ -15,11 +15,10 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      # Step 1: Fetch current image manifests
       - name: Fetch current manifests
         run: |
           for IMAGE in $IMAGES; do
-            IMAGE_NAME=$(echo "$IMAGE" | sed 's/_/-/g') # Replace underscores with hyphens for the actual image names
+            IMAGE_NAME=$(echo "$IMAGE" | sed 's/_/-/g')
             MANIFEST=$(curl -s -H "Accept: application/vnd.oci.image.index.v1+json" -H "Authorization: Bearer ${{ secrets.GHA_READ_PKG }}" "https://ghcr.io/v2/dotabod/$IMAGE_NAME/manifests/v2.1")
             echo "OLD_${IMAGE^^}_MANIFEST=$MANIFEST" >> $GITHUB_ENV
           done
@@ -42,30 +41,30 @@ jobs:
           set: |
             *.platform=linux/arm64
 
-      # Step 2: Fetch new manifests and compare
       - name: Check for updated images
         id: check_updates
         run: |
           UPDATED_IMAGES=""
           for IMAGE in $IMAGES; do
-            IMAGE_NAME=$(echo "$IMAGE" | sed 's/_/-/g') # Replace underscores with hyphens for the actual image names
+            IMAGE_NAME=$(echo "$IMAGE" | sed 's/_/-/g')
             NEW_MANIFEST=$(curl -H "Accept: application/vnd.oci.image.index.v1+json" -H "Authorization: Bearer ${{ secrets.GHA_READ_PKG }}" "https://ghcr.io/v2/dotabod/$IMAGE_NAME/manifests/v2.1")
             OLD_MANIFEST_VAR="OLD_${IMAGE^^}_MANIFEST"
-            # Compare manifests (e.g., using digests or other relevant data)
-            # Echo the new_manifest for debug pruposes to the github env for each image
+            # Echo the new_manifest for debug purposes to the github env for each image
             echo "NEW_${IMAGE^^}_MANIFEST=$NEW_MANIFEST" >> $GITHUB_ENV
-            if [ "$NEW_MANIFEST" != "${!OLD_MANIFEST_VAR}" ]; then
+            # Trim both new and old manifests from whitespace
+            NEW_MANIFEST=$(echo "$NEW_MANIFEST" | tr -d '[:space:]' | base64)
+            OLD_MANIFEST=$(echo "${!OLD_MANIFEST_VAR}" | tr -d '[:space:]' | base64)
+            # Compare the new and old manifests to see if they don't equal
+            if [ "$NEW_MANIFEST" != "$OLD_MANIFEST" ]; then
               UPDATED_IMAGES+="$IMAGE "
             fi
           done
           echo "UPDATED_IMAGES=$UPDATED_IMAGES" >> $GITHUB_ENV
 
-      # Step 3: Conditional notification
       - name: Notify on updated images
         if: env.UPDATED_IMAGES != ''
         run: |
           for IMAGE in $UPDATED_IMAGES; do
-            # Map package name to UUID
             case $IMAGE in
               "dota") UUID="esgckgc" ;;
               "twitch_events") UUID="aopskdk" ;;