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install.go
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install.go
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package main
import (
"flag"
"fmt"
"io"
"os"
"path/filepath"
"strings"
)
var helpFlag bool
var rootDir string
func NewFlagSet() *flag.FlagSet {
ret := flag.NewFlagSet("initialize_toybox", flag.ExitOnError)
ret.Usage = func() {
fmt.Println("initialize_toybox")
ret.PrintDefaults()
}
ret.BoolVar(&helpFlag, "help", false, "show this message")
ret.StringVar(&rootDir, "s", "/", "install target root")
return ret
}
func InstallMain(stdout io.Writer, args []string) error {
flagSet := NewFlagSet()
flagSet.Parse(args)
if helpFlag {
flagSet.Usage()
return nil
}
return install_toybox(rootDir)
}
func install_toybox(root string) error {
dirs := []string{
"/usr/bin",
"/usr/sbin",
}
if !filepath.IsAbs(root) {
pwd, err := filepath.Abs(filepath.Dir(os.Args[0]))
if err != nil {
return err
}
root = filepath.Join(pwd, root)
}
for _, dir := range dirs {
dir = filepath.Join(root, dir)
err := os.MkdirAll(dir, 0755)
if err != nil && !os.IsExist(err) {
return err
}
}
bins := make([]string, 0)
for k, _ := range Applets {
if strings.Contains(k, "--") {
continue
}
bins = append(bins, k)
}
toypath := filepath.Join(root, "usr", "sbin", "toybox")
for _, bin := range bins {
src := filepath.Join(root, "usr", "bin", bin)
if err := os.Symlink(toypath, src); err != nil {
if os.IsExist(err) {
continue
}
return err
}
}
return nil
}