util

Documentation

Index

• Constants
• func CopyMtimes(source, dest *filesystem.FileSystem)
• func DeletedFilteredFiles(rootDir string, filt *filter.Filter) error
• func GetUnsupportedExt4fsOptions(fs *filesystem.FileSystem, objectsGetter objectserver.ObjectsGetter) ([]string, error)
• func MakeBootable(fs *filesystem.FileSystem, ...) error
• func MakeExt4fs(deviceName, label string, unsupportedOptions []string, bytesPerInode uint64, ...) error
• func MakeExt4fsWithParams(deviceName string, params MakeExt4fsParams, logger log.Logger) error
• func MakeKernelOptions(rootDevice, extraOptions string) string
• func ReplaceComputedFiles(fs *filesystem.FileSystem, computedFilesData *ComputedFilesData, ...) (objectserver.ObjectsGetter, error)
• func SpliceComputedFiles(fs *filesystem.FileSystem, computedFileList []ComputedFile) error
• func Unpack(fs *filesystem.FileSystem, objectsGetter objectserver.ObjectsGetter, ...) error
• func WriteFstabEntry(writer io.Writer, source, mountPoint, fileSystemType, flags string, ...) error
• func WriteImageName(mountPoint, imageName string) error
• func WriteRaw(fs *filesystem.FileSystem, objectsGetter objectserver.ObjectsGetter, ...) error
• func WriteRawWithOptions(fs *filesystem.FileSystem, objectsGetter objectserver.ObjectsGetter, ...) error
• type BootInfoType
  • func GetBootInfo(fs *filesystem.FileSystem, rootLabel string, extraKernelOptions string) (*BootInfoType, error)
  • func (bootInfo *BootInfoType) WriteBootloaderConfig(rootDir string, logger log.Logger) error
• type ComputedFile
  • func LoadComputedFiles(filename string) ([]ComputedFile, error)
  • func MergeComputedFiles(base, overlay []ComputedFile) []ComputedFile
• type ComputedFilesData
• type MakeExt4fsParams
• type WriteRawOptions

Constants

const (
	BLKGETSIZE = 0x00001260
)

Functions

func CopyMtimes

func CopyMtimes(source, dest *filesystem.FileSystem)

CopyMtimes will copy modification times for files from the source to the destination if the file data and metadata (other than mtime) are identical. Directory entry inode pointers are invalidated by this operation, so this should be followed by a call to dest.RebuildInodePointers().

func DeletedFilteredFiles

func DeletedFilteredFiles(rootDir string, filt *filter.Filter) error

func GetUnsupportedExt4fsOptions

func GetUnsupportedExt4fsOptions(fs *filesystem.FileSystem,
	objectsGetter objectserver.ObjectsGetter) ([]string, error)

func MakeBootable

func MakeBootable(fs *filesystem.FileSystem,
	deviceName, rootLabel, rootDir, kernelOptions string,
	doChroot bool, logger log.DebugLogger) error

func MakeExt4fs

func MakeExt4fs(deviceName, label string, unsupportedOptions []string,
	bytesPerInode uint64, logger log.Logger) error

func MakeExt4fsWithParams

func MakeExt4fsWithParams(deviceName string, params MakeExt4fsParams,
	logger log.Logger) error

func MakeKernelOptions

func MakeKernelOptions(rootDevice, extraOptions string) string

func ReplaceComputedFiles

func ReplaceComputedFiles(fs *filesystem.FileSystem,
	computedFilesData *ComputedFilesData,
	objectsGetter objectserver.ObjectsGetter) (
	objectserver.ObjectsGetter, error)

func SpliceComputedFiles

func SpliceComputedFiles(fs *filesystem.FileSystem,
	computedFileList []ComputedFile) error

func Unpack

func Unpack(fs *filesystem.FileSystem, objectsGetter objectserver.ObjectsGetter,
	rootDir string, logger log.Logger) error

func WriteFstabEntry

func WriteFstabEntry(writer io.Writer,
	source, mountPoint, fileSystemType, flags string,
	dumpFrequency, checkOrder uint) error

func WriteImageName

func WriteImageName(mountPoint, imageName string) error

func WriteRaw

func WriteRaw(fs *filesystem.FileSystem,
	objectsGetter objectserver.ObjectsGetter, rawFilename string,
	perm os.FileMode, tableType mbr.TableType,
	minFreeSpace uint64, roundupPower uint64, makeBootable, allocateBlocks bool,
	logger log.DebugLogger) error

func WriteRawWithOptions

func WriteRawWithOptions(fs *filesystem.FileSystem,
	objectsGetter objectserver.ObjectsGetter, rawFilename string,
	perm os.FileMode, tableType mbr.TableType, options WriteRawOptions,
	logger log.DebugLogger) error

Types

type BootInfoType

type BootInfoType struct {
	BootDirectory     *filesystem.DirectoryInode
	InitrdImageDirent *filesystem.DirectoryEntry
	InitrdImageFile   string
	KernelImageDirent *filesystem.DirectoryEntry
	KernelImageFile   string
	KernelOptions     string
}

func GetBootInfo

func GetBootInfo(fs *filesystem.FileSystem, rootLabel string,
	extraKernelOptions string) (*BootInfoType, error)

func (*BootInfoType) WriteBootloaderConfig

func (bootInfo *BootInfoType) WriteBootloaderConfig(rootDir string,
	logger log.Logger) error

type ComputedFile

type ComputedFile struct {
	Filename string
	Source   string
}

func LoadComputedFiles

func LoadComputedFiles(filename string) ([]ComputedFile, error)

func MergeComputedFiles

func MergeComputedFiles(base, overlay []ComputedFile) []ComputedFile

type ComputedFilesData

type ComputedFilesData struct {
	FileData      map[string][]byte // Key: filename.
	RootDirectory string
}

type MakeExt4fsParams

type MakeExt4fsParams struct {
	BytesPerInode            uint64
	Label                    string
	ReservedBlocksPercentage uint16
	Size                     uint64
	UnsupportedOptions       []string
}

type WriteRawOptions

type WriteRawOptions struct {
	AllocateBlocks     bool
	DoChroot           bool
	InitialImageName   string
	InstallBootloader  bool
	MinimumFreeBytes   uint64
	OverlayDirectories []string
	OverlayFiles       map[string][]byte
	RootLabel          string
	RoundupPower       uint64
	WriteFstab         bool
}