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params.go
106 lines (84 loc) · 1.78 KB
/
params.go
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package backup
import (
"errors"
"github.com/KalyCoinProject/kalychain/archive"
"github.com/KalyCoinProject/kalychain/command"
"github.com/KalyCoinProject/kalychain/command/helper"
"github.com/KalyCoinProject/kalychain/types"
"github.com/hashicorp/go-hclog"
)
const (
outFlag = "out"
fromFlag = "from"
toFlag = "to"
)
var (
params = &backupParams{}
)
var (
errDecodeRange = errors.New("unable to decode range value")
errInvalidRange = errors.New(`invalid "to" value; must be >= "from"`)
)
type backupParams struct {
out string
fromRaw string
toRaw string
from uint64
to *uint64
resFrom uint64
resTo uint64
}
func (p *backupParams) validateFlags() error {
var parseErr error
if p.from, parseErr = types.ParseUint64orHex(&p.fromRaw); parseErr != nil {
return errDecodeRange
}
if p.toRaw != "" {
var parsedTo uint64
if parsedTo, parseErr = types.ParseUint64orHex(&p.toRaw); parseErr != nil {
return errDecodeRange
}
if p.from > parsedTo {
return errInvalidRange
}
p.to = &parsedTo
}
return nil
}
func (p *backupParams) getRequiredFlags() []string {
return []string{
outFlag,
}
}
func (p *backupParams) createBackup(grpcAddress string) error {
connection, err := helper.GetGRPCConnection(
grpcAddress,
)
if err != nil {
return err
}
// resFrom and resTo represents the range of blocks that can be included in the file
resFrom, resTo, err := archive.CreateBackup(
connection,
hclog.New(&hclog.LoggerOptions{
Name: "backup",
Level: hclog.LevelFromString("INFO"),
}),
p.from,
p.to,
p.out,
)
if err != nil {
return err
}
p.resFrom = resFrom
p.resTo = resTo
return nil
}
func (p *backupParams) getResult() command.CommandResult {
return &BackupResult{
From: p.resFrom,
To: p.resTo,
Out: p.out,
}
}