Update .github/workflows/tailwindcss-auto-update.yaml

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: SimYunSup

.github/workflows/tailwindcss-auto-update.yaml

@@ -27,21 +27,34 @@ jobs:
       - name: Get latest TailwindCSS version
         id: get_tailwind_version
         run: |
+          set -e
           LATEST_TAILWIND_VERSION=$(curl -s https://api.github.com/repos/tailwindlabs/tailwindcss/releases/latest | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/')
+          if [ -z "$LATEST_TAILWIND_VERSION" ]; then
+            echo "Error: Failed to fetch latest TailwindCSS version from GitHub API." >&2
+            exit 1
+          fi
           echo "Latest TailwindCSS version: $LATEST_TAILWIND_VERSION"
           echo "TAILWINDCSS_VERSION=$LATEST_TAILWIND_VERSION" >> $GITHUB_ENV
           echo "TAILWINDCSS_VERSION_CLEAN=${LATEST_TAILWIND_VERSION//v/}" >> $GITHUB_ENV
-
       - name: Get current version from csproj
         id: get_current_version
         run: |
+          set -e
           CURRENT_VERSION=$(grep -oP '<Version>\K[^<]+' ./DotnetDevKR.TailwindCSS/DotnetDevKR.TailwindCSS.csproj)
+          if [ -z "$CURRENT_VERSION" ]; then
+            echo "Error: Failed to extract current version from csproj file." >&2
+            exit 1
+          fi
           echo "Current version: $CURRENT_VERSION"
           echo "CURRENT_VERSION=$CURRENT_VERSION" >> $GITHUB_ENV
 
           # Extract library version and TailwindCSS version
           LIB_VERSION=$(echo $CURRENT_VERSION | cut -d'+' -f1)
           CURRENT_TAILWIND_VERSION=$(echo $CURRENT_VERSION | cut -d'+' -f2 | sed 's/v//')
+          if [ -z "$LIB_VERSION" ] || [ -z "$CURRENT_TAILWIND_VERSION" ]; then
+            echo "Error: Malformed version string in csproj file." >&2
+            exit 1
+          fi
 
           echo "Current library version: $LIB_VERSION"
           echo "Current TailwindCSS version: $CURRENT_TAILWIND_VERSION"