libinit

Documentation

Overview

Package libinit creates the environment and root file system for u-root.

Index

• func Command(bin string, m ...CommandModifier) *exec.Cmd
• func CreateRootfs()
• func NetInit()
• func RunCommands(debug func(string, ...interface{}), commands ...*exec.Cmd) int
• func SetEnv()
• func WaitOrphans() uint
• type CommandModifier
  • func WithArguments(arg ...string) CommandModifier
  • func WithCloneFlags(flags uintptr) CommandModifier
  • func WithTTYControl(ctty bool) CommandModifier

Functions

func Command

func Command(bin string, m ...CommandModifier) *exec.Cmd

Command constructs an *exec.Cmd object.

func CreateRootfs

func CreateRootfs()

CreateRootfs creates the default u-root file system.

func NetInit

func NetInit()

NetInit is u-root network initialization.

func RunCommands

func RunCommands(debug func(string, ...interface{}), commands ...*exec.Cmd) int

FIX ME: make it not linux-specific RunCommands runs commands in sequence.

RunCommands returns how many commands existed and were attempted to run.

commands must refer to absolute paths at the moment.

func SetEnv

func SetEnv()

SetEnv sets the default u-root environment.

func WaitOrphans

func WaitOrphans() uint

WaitOrphans waits for all remaining processes on the system to exit.

Types

type CommandModifier

type CommandModifier func(c *exec.Cmd)

CommandModifier makes *exec.Cmd construction modular.

func WithArguments

func WithArguments(arg ...string) CommandModifier

WithArguments adds command-line arguments to a command.

func WithCloneFlags

func WithCloneFlags(flags uintptr) CommandModifier

WithCloneFlags adds clone(2) flags to the *exec.Cmd.

func WithTTYControl

func WithTTYControl(ctty bool) CommandModifier

WithTTYControl turns on controlling the TTY on this command.