Update entrypoint.sh

added error checking

entrypoint.sh

@@ -34,8 +34,20 @@ do
 done
 
 # Store the output in a variable
-output=$(wick registry push "$(basename "$manifest_path")" $tag_flags 2>&1 | grep 'reference' | grep -E '"(\S*)"' | cut -d '"' -f2 | head -1)
-echo $output
+# Store the output in a variable and capture both stdout and stderr
+output=$(wick registry push "$(basename "$manifest_path")" $tag_flags 2>&1)
+
+# Check the exit status of the wick command
+if [[ $? -ne 0 ]]; then
+  # The wick command failed. Print the error output and exit.
+  echo "Error: wick command failed with output:"
+  echo "$output"
+  exit 1
+fi
+
+# Process the output with your sequence of commands
+processed_output=$(echo "$output" | grep 'reference' | grep -E '"(\S*)"' | cut -d '"' -f2 | head -1)
+echo $processed_output
 
-# Write the output to the GITHUB_OUTPUT environment file
-echo "reference=$output" >> "$GITHUB_OUTPUT"
+# Write the processed output to the GITHUB_OUTPUT environment file
+echo "reference=$processed_output" >> "$GITHUB_OUTPUT"