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database_split.go
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database_split.go
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package toolset
import (
"fmt"
"os"
flag "github.com/spf13/pflag"
"github.com/iotaledger/hornet/core/database"
)
func databaseSplit(args []string) error {
fs := flag.NewFlagSet("", flag.ContinueOnError)
databasePathFlag := fs.String(FlagToolDatabasePath, "", "the path to the database folder that should be split")
fs.Usage = func() {
fmt.Fprintf(os.Stderr, "Usage of %s:\n", ToolDatabaseSplit)
fs.PrintDefaults()
println(fmt.Sprintf("\nexample: %s --%s %s",
ToolDatabaseSplit,
FlagToolDatabasePath,
DefaultValueMainnetDatabasePath))
}
if err := parseFlagSet(fs, args); err != nil {
return err
}
if len(*databasePathFlag) == 0 {
return fmt.Errorf("'%s' not specified", FlagToolDatabasePath)
}
needsSplitting, err := database.NeedsSplitting(*databasePathFlag)
if err != nil {
return err
}
if !needsSplitting {
return fmt.Errorf("legacy database not found. Already migrated?")
}
err = database.SplitIntoTangleAndUTXO(*databasePathFlag)
if err == nil {
fmt.Println("The split database might be larger. Run your node to compact the new database automatically")
}
return err
}