forked from containerd/btrfs
/
main.go
65 lines (54 loc) · 1.23 KB
/
main.go
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package main
import (
"flag"
"fmt"
"log"
"os"
"text/tabwriter"
"github.com/stevvooe/go-btrfs"
)
var (
readonly bool
)
func init() {
flag.BoolVar(&readonly, "readonly", false, "readonly snapshot")
}
func main() {
flag.Parse()
switch os.Args[1] {
case "create":
if err := btrfs.SubvolCreate(os.Args[2]); err != nil {
log.Fatalln(err)
}
case "snapshot":
if err := btrfs.SubvolSnapshot(os.Args[3], os.Args[2], readonly); err != nil {
log.Fatalln(err)
}
case "delete":
if err := btrfs.SubvolDelete(os.Args[2]); err != nil {
log.Fatalln(err)
}
case "list":
infos, err := btrfs.SubvolList(os.Args[2])
if err != nil {
log.Fatalln(err)
}
tw := tabwriter.NewWriter(os.Stdout, 0, 8, 4, '\t', 0)
fmt.Fprintf(tw, "ID\tParent\tTopLevel\tGen\tOGen\tUUID\tParentUUID\tPath\n")
for _, subvol := range infos {
fmt.Fprintf(tw, "%d\t%d\t%d\t%d\t%d\t%s\t%s\t%s\n",
subvol.ID, subvol.ParentID, subvol.TopLevelID,
subvol.Generation, subvol.OriginalGeneration, subvol.UUID, subvol.ParentUUID,
subvol.Path)
}
tw.Flush()
case "show":
info, err := btrfs.SubvolInfo(os.Args[2])
if err != nil {
log.Fatalln(err)
}
fmt.Printf("%#v\n", info)
default:
log.Fatal("unknown command", os.Args[1])
}
}