Fix jenkinsfile

Jenkinsfile

@@ -7,25 +7,15 @@ pipeline {
                 script {
                     // Check for spaces or mixed indentation
                     sh '''
-                    grep -P "test" <<< "test" || echo "grep -P not supported"
+                    if grep -P "^[ ]+" -r --include=*.css ; then
-					
+                        echo "Error: Files contain spaces instead of tabs for indentation."
-                    # Define file extensions to check
-                    FILE_EXTENSIONS="css,json,js,java,htm,html,cpp,c,h,p,py,go,cs"
-
-                    echo "Checking for spaces in indentation..."
-                    grep -nrP "^[ ]+" --include="*.{$FILE_EXTENSIONS}" . || echo "No lines with spaces found."
-
-                    echo "Checking for mixed indentation..."
-                    grep -nrP "^\t+ +" --include="*.{$FILE_EXTENSIONS}" . || echo "No lines with mixed indentation found."
-
-                    if grep -nrP "^[ ]+" --include="*.{$FILE_EXTENSIONS}" . || \
-                       grep -nrP "^\t+ +" --include="*.{$FILE_EXTENSIONS}" .; then
-                        echo "Indentation issues detected. Please fix the above lines."
                         exit 1
-                    else
-                        echo "No indentation issues detected."
-                        exit 0
                     fi
+                    if grep -P "^\\t+ +" -r --include=*.css ; then
+                        echo "Error: Files contain mixed tabs and spaces for indentation."
+                        exit 1
+                    fi
+                    echo "No indentation errors detected."
                     '''
                 }
             }