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import.go
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import.go
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package main
import (
"fmt"
"os"
"strings"
"github.com/spf13/cobra"
"github.com/lxc/incus/v6/client"
cli "github.com/lxc/incus/v6/internal/cmd"
"github.com/lxc/incus/v6/internal/i18n"
"github.com/lxc/incus/v6/shared/ioprogress"
"github.com/lxc/incus/v6/shared/units"
)
type cmdImport struct {
global *cmdGlobal
flagStorage string
}
func (c *cmdImport) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("import", i18n.G("[<remote>:] <backup file> [<instance name>]"))
cmd.Short = i18n.G("Import instance backups")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(
`Import backups of instances including their snapshots.`))
cmd.Example = cli.FormatSection("", i18n.G(
`incus import backup0.tar.gz
Create a new instance using backup0.tar.gz as the source.`))
cmd.RunE = c.Run
cmd.Flags().StringVarP(&c.flagStorage, "storage", "s", "", i18n.G("Storage pool name")+"``")
return cmd
}
func (c *cmdImport) Run(cmd *cobra.Command, args []string) error {
// Quick checks.
exit, err := c.global.CheckArgs(cmd, args, 1, 3)
if exit {
return err
}
srcFilePosition := 0
// Parse remote (identify 1st argument is remote by looking for a colon at the end).
remote := ""
if len(args) > 1 && strings.HasSuffix(args[0], ":") {
remote = args[0]
srcFilePosition = 1
}
// Parse source file (this could be 1st or 2nd argument depending on whether a remote is specified first).
srcFile := ""
if len(args) >= srcFilePosition+1 {
srcFile = args[srcFilePosition]
}
// Parse instance name.
instanceName := ""
if len(args) >= srcFilePosition+2 {
instanceName = args[srcFilePosition+1]
}
resources, err := c.global.ParseServers(remote)
if err != nil {
return err
}
resource := resources[0]
var file *os.File
if srcFile == "-" {
file = os.Stdin
c.global.flagQuiet = true
} else {
file, err = os.Open(srcFile)
if err != nil {
return err
}
defer func() { _ = file.Close() }()
}
fstat, err := file.Stat()
if err != nil {
return err
}
progress := cli.ProgressRenderer{
Format: i18n.G("Importing instance: %s"),
Quiet: c.global.flagQuiet,
}
createArgs := incus.InstanceBackupArgs{
BackupFile: &ioprogress.ProgressReader{
ReadCloser: file,
Tracker: &ioprogress.ProgressTracker{
Length: fstat.Size(),
Handler: func(percent int64, speed int64) {
progress.UpdateProgress(ioprogress.ProgressData{Text: fmt.Sprintf("%d%% (%s/s)", percent, units.GetByteSizeString(speed, 2))})
},
},
},
PoolName: c.flagStorage,
Name: instanceName,
}
op, err := resource.server.CreateInstanceFromBackup(createArgs)
if err != nil {
return err
}
// Wait for operation to finish.
err = cli.CancelableWait(op, &progress)
if err != nil {
progress.Done("")
return err
}
progress.Done("")
return nil
}