142 lines
2.9 KiB
Go
142 lines
2.9 KiB
Go
package image
|
|
|
|
import (
|
|
"os"
|
|
"path/filepath"
|
|
"time"
|
|
|
|
"github.com/pkg/errors"
|
|
|
|
"github.com/warewulf/warewulf/internal/pkg/util"
|
|
"github.com/warewulf/warewulf/internal/pkg/wwlog"
|
|
)
|
|
|
|
func ValidName(name string) bool {
|
|
if !util.ValidString("^[\\w\\-\\.\\:]+$", name) {
|
|
wwlog.Warn("Image name has illegal characters: %s", name)
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
func ListSources() ([]string, error) {
|
|
var ret []string
|
|
|
|
err := os.MkdirAll(SourceParentDir(), 0755)
|
|
if err != nil {
|
|
return ret, errors.New("Could not create image source parent directory: " + SourceParentDir())
|
|
}
|
|
wwlog.Debug("Searching for image rootfs directories: %s", SourceParentDir())
|
|
|
|
sources, err := os.ReadDir(SourceParentDir())
|
|
if err != nil {
|
|
return ret, err
|
|
}
|
|
|
|
for _, source := range sources {
|
|
wwlog.Verbose("Found image source: %s", source.Name())
|
|
|
|
if !ValidName(source.Name()) {
|
|
continue
|
|
}
|
|
|
|
if !ValidSource(source.Name()) {
|
|
continue
|
|
}
|
|
|
|
ret = append(ret, source.Name())
|
|
}
|
|
|
|
return ret, nil
|
|
}
|
|
|
|
func DoesSourceExist(name string) bool {
|
|
fullPath := RootFsDir(name)
|
|
return util.IsDir(fullPath)
|
|
}
|
|
|
|
func ValidSource(name string) bool {
|
|
if !ValidName(name) {
|
|
return false
|
|
}
|
|
|
|
if !DoesSourceExist(name) {
|
|
wwlog.Verbose("Location is not an image source directory: %s", name)
|
|
return false
|
|
}
|
|
|
|
return true
|
|
}
|
|
|
|
/*
|
|
Delete the chroot of an image
|
|
*/
|
|
func DeleteSource(name string) error {
|
|
fullPath := SourceDir(name)
|
|
|
|
wwlog.Verbose("Removing path: %s", fullPath)
|
|
return os.RemoveAll(fullPath)
|
|
}
|
|
|
|
func Duplicate(name string, destination string) error {
|
|
fullPathImageSource := RootFsDir(name)
|
|
|
|
wwlog.Info("Copying sources...")
|
|
err := ImportDirectory(fullPathImageSource, destination)
|
|
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
/*
|
|
Delete the image of an image
|
|
*/
|
|
func DeleteImage(name string) error {
|
|
imageFile := ImageFile(name)
|
|
if util.IsFile(imageFile) {
|
|
wwlog.Verbose("removing %s for image %s", imageFile, name)
|
|
errImg := os.Remove(imageFile)
|
|
wwlog.Verbose("removing %s for image %s", imageFile+".gz", name)
|
|
errGz := os.Remove(imageFile + ".gz")
|
|
if errImg != nil {
|
|
return errors.Errorf("Problems delete %s for image %s: %s\n", imageFile, name, errImg)
|
|
}
|
|
if errGz != nil {
|
|
return errors.Errorf("Problems delete %s for image %s: %s\n", imageFile+".gz", name, errGz)
|
|
}
|
|
return nil
|
|
}
|
|
return errors.Errorf("Image %s of image %s doesn't exist\n", imageFile, name)
|
|
}
|
|
|
|
func IsWriteAble(name string) bool {
|
|
return !util.IsFile(filepath.Join(SourceDir(name), "readonly"))
|
|
}
|
|
|
|
func ImageSize(name string) int {
|
|
if img, err := os.Stat(ImageFile(name)); err == nil {
|
|
return int(img.Size())
|
|
} else {
|
|
return 0
|
|
}
|
|
}
|
|
|
|
func ImageModTime(name string) time.Time {
|
|
if img, err := os.Stat(ImageFile(name)); err == nil {
|
|
return img.ModTime()
|
|
} else {
|
|
return time.Time{}
|
|
}
|
|
}
|
|
|
|
func CompressedImageSize(name string) int {
|
|
if img, err := os.Stat(CompressedImageFile(name)); err == nil {
|
|
return int(img.Size())
|
|
} else {
|
|
return 0
|
|
}
|
|
}
|