Files
warewulf/internal/app/wwctl/overlay/delete/main.go
Christian Goll d5fc7e9320 introduce site overlays
site overlays are place in sysconfdir/overlays and take
precedence over distribution overlays with the same name.

Every `wwctl overlay` command changing overlays will create
an site overlay. distribution overlays can't be deleted or
modified with wwctl.

Signed-off-by: Christian Goll <cgoll@suse.com>
2024-12-20 11:12:41 +01:00

92 lines
2.0 KiB
Go

package delete
import (
"fmt"
"os"
"path"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/warewulf/warewulf/internal/pkg/overlay"
"github.com/warewulf/warewulf/internal/pkg/util"
"github.com/warewulf/warewulf/internal/pkg/wwlog"
)
func CobraRunE(cmd *cobra.Command, args []string) error {
var overlayPath string
var fileName string
overlayName := args[0]
if len(args) == 2 {
fileName = args[1]
}
overlayPath, isSite := overlay.OverlaySourceDir(overlayName)
if !isSite {
return fmt.Errorf("distribution overlay can't deleted")
}
if overlayPath == "" {
return fmt.Errorf("overlay name did not resolve: '%s'", overlayName)
}
if !util.IsDir(overlayPath) {
return fmt.Errorf("overlay does not exist: %s", overlayName)
}
if fileName == "" {
if overlayName == "wwinit" || overlayName == "host" {
return errors.New("refusing to delete the Warewulf overlay")
}
if Force {
err := os.RemoveAll(overlayPath)
if err != nil {
return fmt.Errorf("failed deleting overlay: %w", err)
}
} else {
err := os.Remove(overlayPath)
if err != nil {
return fmt.Errorf("failed deleting overlay: %w", err)
}
}
wwlog.Info("Deleted overlay: %s\n", args[0])
} else {
removePath := path.Join(overlayPath, fileName)
if !util.IsDir(removePath) && !util.IsFile(removePath) {
return fmt.Errorf("path to remove doesn't exist in overlay: %s", removePath)
}
if Force {
err := os.RemoveAll(removePath)
if err != nil {
return fmt.Errorf("failed deleting file from overlay: %s:%s", overlayName, overlayPath)
}
} else {
err := os.Remove(removePath)
if err != nil {
return fmt.Errorf("failed deleting overlay: %s:%s", overlayName, overlayPath)
}
}
if Parents {
// Cleanup any empty directories left behind...
i := path.Dir(removePath)
for i != overlayPath {
wwlog.Debug("Evaluating directory to remove: %s", i)
err := os.Remove(i)
if err != nil {
break
}
wwlog.Verbose("Removed empty directory: %s", i)
i = path.Dir(i)
}
}
}
return nil
}