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@ttys3
Forked from lunny/diskinfo.go
Last active Oct 11, 2021
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Disk Usage info like `df -h` for Golang
package main
import (
"fmt"
syscall "golang.org/x/sys/unix"
)
type DiskStatus struct {
All uint64 `json:"all"`
Used uint64 `json:"used"`
Free uint64 `json:"free"`
Avail uint64 `json:"avail"`
}
// disk usage of path/disk
func DiskUsage(path string) (disk DiskStatus) {
fs := syscall.Statfs_t{}
err := syscall.Statfs(path, &fs)
if err != nil {
return
}
disk.All = fs.Blocks * uint64(fs.Bsize)
disk.Avail = fs.Bavail * uint64(fs.Bsize)
disk.Free = fs.Bfree * uint64(fs.Bsize)
disk.Used = disk.All - disk.Free
return
}
const (
B = 1
KB = 1024 * B
MB = 1024 * KB
GB = 1024 * MB
)
func main() {
disk := DiskUsage("/")
fmt.Printf("All: %.2f GB\n", float64(disk.All)/float64(GB))
fmt.Printf("Avail: %.2f GB\n", float64(disk.Avail)/float64(GB))
fmt.Printf("Used: %.2f GB\n", float64(disk.Used)/float64(GB))
}
@ikbear
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ikbear commented Mar 28, 2020

disk.Used data is not correct on Mac. It should be disk.All - disk. Avail

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