package main import ( "os" "path/filepath" "strings" "github.com/shirou/gopsutil/v3/process" ) func isAnotherProcessRunning() (bool, error) { processes, err := process.Processes() if err != nil { return false, err } pid := os.Getpid() processName := strings.ToLower(filepath.Base(os.Args[0])) for _, p := range processes { if int(p.Pid) == pid { continue } runningProcessPath, err := p.Exe() // most errors are related to short-lived processes if err != nil { continue } if strings.Contains(strings.ToLower(runningProcessPath), processName) && isProcessOwnedByCurrentUser(p) { return true, nil } } return false, nil }