Added disk-only switch to just show disks

synopsys.go

@@ -38,6 +38,7 @@ Options:
  Default 8.
  -m, --memscale [kKmMgGtT] Units of memory to display, in kilo/Kibi etc.
  Default is megabytes.
+ -D, --disk-only Show only disk activity
 `
 
 func main() {
@@ -48,6 +49,7 @@ func main() {
  var (
  num_disks, num_cpu, num_seconds int
  mem_scale string
+ disk_only bool
  )
  flag.IntVar(&num_seconds, "interval", 1,
  "The number of seconds to wait between updates.")
@@ -59,6 +61,7 @@ func main() {
  flag.IntVar(&num_disks, "d", 8, "How many 'hot' CPU to display")
  flag.StringVar(&mem_scale, "memory", "m", "Choose how to scale memory")
  flag.StringVar(&mem_scale, "m", "m", "Choose how to scale memory")
+ flag.BoolVar(&disk_only, "D", false, "Only show disk activity")
  flag.Parse()
 
  // TODO - parse this as an arg
@@ -95,15 +98,19 @@ func main() {
  if err != nil {
  log.Fatal("Unable to read uptime")
  }
- fmt.Printf(
- "up:%s %s cpu:%s\nmem: %s\ndisks:%s\n",
- ut.HoursMinutes(),
- ld.InfoPrint(),
- // TODO - accept as parameter
- c.InfoPrint(num_cpu),
- m.InfoPrint(),
- disks.InfoPrint(num_disks),
- )
+ if !disk_only {
+ fmt.Printf(
+ "up:%s %s cpu:%s\nmem: %s\ndisks:%s\n",
+ ut.HoursMinutes(),
+ ld.InfoPrint(),
+ // TODO - accept as parameter
+ c.InfoPrint(num_cpu),
+ m.InfoPrint(),
+ disks.InfoPrint(num_disks),
+ )
+ } else {
+ fmt.Printf("disks:\n%s\n", disks.InfoPrint(num_disks))
+ }
  }
  }()