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backup_list_handler.go
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/
backup_list_handler.go
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package postgres
import (
"fmt"
"io"
"os"
"text/tabwriter"
"github.com/jedib0t/go-pretty/table"
"github.com/wal-g/tracelog"
"github.com/wal-g/wal-g/internal"
"github.com/wal-g/wal-g/pkg/storages/storage"
)
// TODO : unit tests
func HandleDetailedBackupList(folder storage.Folder, pretty bool, json bool) {
backups, err := internal.GetBackups(folder)
if len(backups) == 0 {
tracelog.InfoLogger.Println("No backups found")
return
}
tracelog.ErrorLogger.FatalOnError(err)
// if details are requested we append content of metadata.json to each line
backupDetails, err := GetBackupsDetails(folder, backups)
tracelog.ErrorLogger.FatalOnError(err)
SortBackupDetails(backupDetails)
switch {
case json:
err = internal.WriteAsJSON(backupDetails, os.Stdout, pretty)
case pretty:
WritePrettyBackupListDetails(backupDetails, os.Stdout)
default:
err = WriteBackupListDetails(backupDetails, os.Stdout)
}
tracelog.ErrorLogger.FatalOnError(err)
}
// TODO : unit tests
func WriteBackupListDetails(backupDetails []BackupDetail, output io.Writer) error {
writer := tabwriter.NewWriter(output, 0, 0, 1, ' ', 0)
defer writer.Flush()
//nolint:lll
_, err := fmt.Fprintln(writer, "name\tmodified\twal_segment_backup_start\tstart_time\tfinish_time\thostname\tdata_dir\tpg_version\tstart_lsn\tfinish_lsn\tis_permanent")
if err != nil {
return err
}
for i := 0; i < len(backupDetails); i++ {
b := backupDetails[i]
//nolint:lll
_, err = fmt.Fprintf(writer, "%v\t%v\t%v\t%v\t%v\t%v\t%v\t%v\t%v\t%v\t%v\n", b.BackupName, internal.FormatTime(b.Time), b.WalFileName, internal.FormatTime(b.StartTime), internal.FormatTime(b.FinishTime), b.Hostname, b.DataDir, b.PgVersion, b.StartLsn, b.FinishLsn, b.IsPermanent)
if err != nil {
return err
}
}
return nil
}
// TODO : unit tests
func WritePrettyBackupListDetails(backupDetails []BackupDetail, output io.Writer) {
writer := table.NewWriter()
writer.SetOutputMirror(output)
defer writer.Render()
//nolint:lll
writer.AppendHeader(table.Row{"#", "Name", "Modified", "WAL segment backup start", "Start time", "Finish time", "Hostname", "Datadir", "PG Version", "Start LSN", "Finish LSN", "Permanent"})
for idx := range backupDetails {
b := &backupDetails[idx]
writer.AppendRow(
table.Row{idx, b.BackupName, internal.PrettyFormatTime(b.Time), b.WalFileName,
internal.PrettyFormatTime(b.StartTime), internal.PrettyFormatTime(b.FinishTime),
b.Hostname, b.DataDir, b.PgVersion, b.StartLsn, b.FinishLsn, b.IsPermanent})
}
}