Refactor workflow to check for existence and validity of deploy_env.json before setting ENV variable.

.gitea/workflows/pipeline-test.yaml

@@ -13,7 +13,23 @@ jobs:
       - name: Set Environment
         id: set-env
         run: |
-        echo "ENV=$(cat deploy_env.json | jq -r '.env')" >> $GITHUB_ENV
+          # Ensure the deploy_env.json file exists and is readable
+          if [ ! -f deploy_env.json ]; then
+            echo "deploy_env.json does not exist or cannot be read."
+            exit 1
+          fi
+
+          # Extract the environment variable using jq and check if it's empty
+          ENV=$(cat deploy_env.json | jq -r '.env')
+          if [ -z "$ENV" ]; then
+            echo "Environment variable is empty."
+            exit 1
+          fi
+          
+          # Use GitHub's environment file syntax to set the ENV variable
+          echo "ENV=$ENV" >> $GITHUB_ENV
+          
+          # Output the environment variable for use in subsequent steps
           echo "::set-output name=environment::$ENV"
           
       - name: Set up Go