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* umoci: Umoci Modifies Open Containers' Images
* Copyright (C) 2016 SUSE LLC.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
package umoci
import (
// Ensure that mtree.FsEval is implemented by FsEval.
var _ mtree.FsEval = DefaultFsEval
var _ mtree.FsEval = RootlessFsEval
// FsEval is a super-interface that implements everything required for
// mtree.FsEval as well as including all of the imporant os.* wrapper functions
// needed for "oci/layers".tarExtractor.
type FsEval interface {
// Open is equivalent to os.Open.
Open(path string) (*os.File, error)
// Create is equivalent to os.Create.
Create(path string) (*os.File, error)
// Readdir is equivalent to os.Readdir.
Readdir(path string) ([]os.FileInfo, error)
// Lstat is equivalent to os.Lstat.
Lstat(path string) (os.FileInfo, error)
// Readlink is equivalent to os.Readlink.
Readlink(path string) (string, error)
// Symlink is equivalent to os.Symlink.
Symlink(linkname, path string) error
// Link is equivalent to os.Link.
Link(linkname, path string) error
// Chmod is equivalent to os.Chmod.
Chmod(path string, mode os.FileMode) error
// Lutimes is equivalent to os.Lutimes.
Lutimes(path string, atime, mtime time.Time) error
// Remove is equivalent to os.Remove.
Remove(path string) error
// RemoveAll is equivalent to os.RemoveAll.
RemoveAll(path string) error
// Mkdir is equivalent to os.Mkdir.
Mkdir(path string, perm os.FileMode) error
// MkdirAll is equivalent to os.MkdirAll.
MkdirAll(path string, perm os.FileMode) error
// Mknod is equivalent to system.Mknod.
Mknod(path string, mode os.FileMode, dev system.Dev_t) error
// Llistxattr is equivalent to system.Llistxattr
Llistxattr(path string) ([]string, error)
// Lremovexattr is equivalent to system.Lremovexattr
Lremovexattr(path, name string) error
// Lsetxattr is equivalent to system.Lsetxattr
Lsetxattr(path, name string, value []byte, flags int) error
// Lgetxattr is equivalent to system.Lgetxattr
Lgetxattr(path string, name string) ([]byte, error)
// Lclearxattrs is equivalent to system.Lclearxattrs
Lclearxattrs(path string) error
// KeywordFunc returns a wrapper around the given mtree.KeywordFunc.
KeywordFunc(fn mtree.KeywordFunc) mtree.KeywordFunc