layer

Documentation

Overview

* Copyright (c) 2025 System233 * * This software is released under the MIT License. * https://opensource.org/licenses/MIT

Index

• Constants
• func Dump(target string) error
• func GetTriplet() string
• func IsValidComponentVersion(version string) bool
• func IsValidVersion(version string) bool
• func Mount(opt *MountOption) error
• func NormalizeVersion(version string) string
• func Pack(opt *PackOption) error
• func Umount(opt *UmountOption) error
• type Config
  • func (c *Config) Verify() []string
• type DumpErofsOption
• type LayerHeader
  • func NewLayerHeader(file *os.File) (*LayerHeader, error)
  • func NewLayerHeaderFromFile(filePath string) (*LayerHeader, error)
  • func (l *LayerHeader) DataOffset() int
  • func (l *LayerHeader) Print()
  • func (l *LayerHeader) PrintAll() error
  • func (l *LayerHeader) PrintErofs(opt *DumpErofsOption) error
• type LayerInfo
  • func (l *LayerInfo) FileName() string
  • func (info *LayerInfo) ParseLayerInfo(config Config) error
  • func (info *LayerInfo) Print()
• type LayerInfoHeader
  • func NewLayerInfoHeader(config Config) LayerInfoHeader
  • func (l *LayerInfoHeader) Print()
• type MountOption
• type PackOption
• type UmountOption

Constants

const DumpErofs = "dump.erofs"

const ErofsFuse = "erofsfuse"

const FuserMount = "fusermount"

const LayerMagic = "<<< deepin linglong layer archive >>>\x00\x00\x00"

const MkfsErofs = "mkfs.erofs"

Functions

func Dump

func Dump(target string) error

func GetTriplet

func GetTriplet() string

func IsValidComponentVersion

func IsValidComponentVersion(version string) bool

func IsValidVersion

func IsValidVersion(version string) bool

func Mount

func Mount(opt *MountOption) error

func NormalizeVersion

func NormalizeVersion(version string) string

解析规则： * 若是deb版本号格式，去除epoch部分，其余4个部分，每个部分取其中首次出现的数字，如果存在rev，upstream中取3个部分，rev作为最后一个部分，数量不全的部分尾部补0； * 若是其他格式，按点号分割为4个部分，移除其中所有的非数字内容； * 若某个部分没有数字，则补0； * 若数字有前导0，删除前导0； * 删除所有空格；

func Pack

func Pack(opt *PackOption) error

func Umount

func Umount(opt *UmountOption) error

Types

type Config

type Config struct {
	Version string `yaml:"version"`
	Package struct {
		ID          string `yaml:"id"`
		Name        string `yaml:"name"`
		Version     string `yaml:"version"`
		Kind        string `yaml:"kind"`
		Description string `yaml:"description"`
	} `yaml:"package"`
	Command []string `yaml:"command"`
	Base    string   `yaml:"base"`
	Runtime string   `yaml:"runtime,omitempty"`
	Build   string   `yaml:"build"`
}

func (*Config) Verify

func (c *Config) Verify() []string

type DumpErofsOption

type DumpErofsOption struct {
	Args     []string
	ExecPath string
}

type LayerHeader

type LayerHeader struct {
	FileName string
	FileSize int64
	Magic    string
	Info     LayerInfoHeader
	InfoSize int
}

func NewLayerHeader

func NewLayerHeader(file *os.File) (*LayerHeader, error)

func NewLayerHeaderFromFile

func NewLayerHeaderFromFile(filePath string) (*LayerHeader, error)

func (*LayerHeader) DataOffset

func (l *LayerHeader) DataOffset() int

func (*LayerHeader) Print

func (l *LayerHeader) Print()

func (*LayerHeader) PrintAll

func (l *LayerHeader) PrintAll() error

func (*LayerHeader) PrintErofs

func (l *LayerHeader) PrintErofs(opt *DumpErofsOption) error

type LayerInfo

type LayerInfo struct {
	Arch          []string `json:"arch"`
	Base          string   `json:"base"`
	Runtime       string   `json:"runtime,omitempty"`
	Channel       string   `json:"channel"`
	Command       []string `json:"command"`
	Description   string   `json:"description"`
	ID            string   `json:"id"`
	Kind          string   `json:"kind"`
	Module        string   `json:"module"`
	Name          string   `json:"name"`
	SchemaVersion string   `json:"schema_version"`
	Size          int64    `json:"size"`
	Version       string   `json:"version"`
}

func (*LayerInfo) FileName

func (l *LayerInfo) FileName() string

func (*LayerInfo) ParseLayerInfo

func (info *LayerInfo) ParseLayerInfo(config Config) error

func (*LayerInfo) Print

func (info *LayerInfo) Print()

type LayerInfoHeader

type LayerInfoHeader struct {
	Info    LayerInfo `json:"info"`
	Version string    `json:"version"`
}

func NewLayerInfoHeader

func NewLayerInfoHeader(config Config) LayerInfoHeader

func (*LayerInfoHeader) Print

func (l *LayerInfoHeader) Print()

type MountOption

type MountOption struct {
	Source   string
	Target   string
	Args     []string
	ExecPath string
}

type PackOption

type PackOption struct {
	Source     string
	Target     string
	ExecPath   string
	Compressor string
	BlockSize  int
	Uid        int
	Gid        int
	Args       []string
}

type UmountOption

type UmountOption struct {
	Target   string
	Args     []string
	ExecPath string
}