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snap_info.go
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snap_info.go
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package toolset
import (
"fmt"
"os"
flag "github.com/spf13/pflag"
"github.com/iotaledger/hive.go/app/configuration"
"github.com/iotaledger/hornet/v2/pkg/snapshot"
)
func snapshotInfo(args []string) error {
fs := configuration.NewUnsortedFlagSet("", flag.ContinueOnError)
snapshotPathFlag := fs.String(FlagToolSnapshotPath, "", "the path to the snapshot file")
fs.Usage = func() {
_, _ = fmt.Fprintf(os.Stderr, "Usage of %s:\n", ToolSnapInfo)
fs.PrintDefaults()
println(fmt.Sprintf("\nexample: %s --%s %s",
ToolSnapInfo,
FlagToolSnapshotPath,
"snapshots/mainnet/full_snapshot.bin"))
}
if err := parseFlagSet(fs, args); err != nil {
return err
}
if len(*snapshotPathFlag) == 0 {
return fmt.Errorf("'%s' not specified", FlagToolSnapshotPath)
}
filePath := *snapshotPathFlag
snapshotType, err := snapshot.ReadSnapshotTypeFromFile(filePath)
if err != nil {
return err
}
switch snapshotType {
case snapshot.Full:
fullHeader, err := snapshot.ReadFullSnapshotHeaderFromFile(filePath)
if err != nil {
return err
}
return printFullSnapshotHeaderInfo("", filePath, fullHeader)
case snapshot.Delta:
deltaHeader, err := snapshot.ReadDeltaSnapshotHeaderFromFile(filePath)
if err != nil {
return err
}
return printDeltaSnapshotHeaderInfo("", filePath, deltaHeader)
default:
return fmt.Errorf("unknown snapshot type: %d", snapshotType)
}
}