/
node_xattr.go
49 lines (39 loc) · 1.13 KB
/
node_xattr.go
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//go:build darwin || freebsd || linux || solaris
// +build darwin freebsd linux solaris
package restic
import (
"syscall"
"github.com/konidev20/rapi/internal/errors"
"github.com/pkg/xattr"
)
// Getxattr retrieves extended attribute data associated with path.
func Getxattr(path, name string) ([]byte, error) {
b, err := xattr.LGet(path, name)
return b, handleXattrErr(err)
}
// Listxattr retrieves a list of names of extended attributes associated with the
// given path in the file system.
func Listxattr(path string) ([]string, error) {
l, err := xattr.LList(path)
return l, handleXattrErr(err)
}
// Setxattr associates name and data together as an attribute of path.
func Setxattr(path, name string, data []byte) error {
return handleXattrErr(xattr.LSet(path, name, data))
}
func handleXattrErr(err error) error {
switch e := err.(type) {
case nil:
return nil
case *xattr.Error:
// On Linux, xattr calls on files in an SMB/CIFS mount can return
// ENOATTR instead of ENOTSUP.
switch e.Err {
case syscall.ENOTSUP, xattr.ENOATTR:
return nil
}
return errors.WithStack(e)
default:
return errors.WithStack(e)
}
}