func addRegularFile(directory *filesystem.Directory,
fileSystem, oldFS *FileSystem,
name string, directoryPathName string, stat *syscall.Stat_t) error {
inode, isNewInode := fileSystem.getRegularInode(stat)
var file filesystem.RegularFile
file.Name = name
file.InodeNumber = stat.Ino
file.SetInode(inode)
if isNewInode {
if inode.Size > 0 {
err := scanRegularFile(&file, fileSystem, directoryPathName)
if err != nil {
return err
}
}
if oldFS != nil && oldFS.RegularInodeTable != nil {
if oldInode, found := oldFS.RegularInodeTable[stat.Ino]; found {
if filesystem.CompareRegularInodes(inode, oldInode, nil) {
inode = oldInode
file.SetInode(inode)
fileSystem.RegularInodeTable[stat.Ino] = inode
}
}
}
}
directory.RegularFileList = append(directory.RegularFileList, &file)
return nil
}
func (decoderData *decoderData) addHardlink(header *tar.Header,
parent *filesystem.Directory, name string) error {
header.Linkname = normaliseFilename(header.Linkname)
if inum, ok := decoderData.regularInodeTable[header.Linkname]; ok {
var newEntry filesystem.RegularFile
newEntry.Name = name
newEntry.InodeNumber = inum
parent.RegularFileList = append(parent.RegularFileList, &newEntry)
} else if inum, ok := decoderData.symlinkInodeTable[header.Linkname]; ok {
var newEntry filesystem.Symlink
newEntry.Name = name
newEntry.InodeNumber = inum
parent.SymlinkList = append(parent.SymlinkList, &newEntry)
} else if inum, ok := decoderData.inodeTable[header.Linkname]; ok {
var newEntry filesystem.File
newEntry.Name = name
newEntry.InodeNumber = inum
parent.FileList = append(parent.FileList, &newEntry)
} else {
return errors.New(fmt.Sprintf("missing hardlink target: %s",
header.Linkname))
}
return nil
}
func (decoderData *decoderData) addRegularFile(tarReader *tar.Reader,
dataHandler DataHandler, header *tar.Header, parent *filesystem.Directory,
name string) error {
var newInode filesystem.RegularInode
newInode.Mode = filesystem.FileMode((header.Mode & ^syscall.S_IFMT) |
syscall.S_IFREG)
newInode.Uid = uint32(header.Uid)
newInode.Gid = uint32(header.Gid)
newInode.MtimeNanoSeconds = int32(header.ModTime.Nanosecond())
newInode.MtimeSeconds = header.ModTime.Unix()
newInode.Size = uint64(header.Size)
if header.Size > 0 {
data, err := ioutil.ReadAll(tarReader)
if err != nil {
return errors.New("error reading file data" + err.Error())
}
if int64(len(data)) != header.Size {
return errors.New(fmt.Sprintf(
"failed to read file data, wanted: %d, got: %d bytes",
header.Size, len(data)))
}
newInode.Hash, err = dataHandler.HandleData(data)
if err != nil {
return err
}
}
decoderData.regularInodeTable[header.Name] = decoderData.nextInodeNumber
decoderData.fileSystem.RegularInodeTable[decoderData.nextInodeNumber] =
&newInode
var newEntry filesystem.RegularFile
newEntry.Name = name
newEntry.InodeNumber = decoderData.nextInodeNumber
parent.RegularFileList = append(parent.RegularFileList, &newEntry)
decoderData.nextInodeNumber++
return nil
}
