fakeroot/cmd/nsfakeroot/fakeroot.go

61 lines
1.1 KiB
Go

package main
import (
"flag"
"fmt"
"log"
"os"
"lure.sh/fakeroot"
"lure.sh/fakeroot/loginshell"
)
func main() {
var showHelp bool
flag.BoolVar(&showHelp, "help", false, "Show help screen")
flag.BoolVar(&showHelp, "h", false, "Show help screen")
flag.Parse()
if showHelp {
printHelp()
return
}
var (
cmd string
args []string
err error
)
if flag.NArg() > 0 {
cmd = flag.Arg(0)
args = flag.Args()[1:]
} else {
cmd, err = loginshell.Get(-1)
if err != nil {
log.Fatalln(err)
}
}
c, err := fakeroot.Command(cmd, args...)
if err != nil {
log.Fatalln(err)
}
c.Stdin = os.Stdin
c.Stdout = os.Stdout
c.Stderr = os.Stderr
err = c.Run()
if err != nil {
log.Fatalln(err)
}
}
func printHelp() {
fmt.Print("Go implementation of fakeroot using Linux user namespaces.\n\n")
fmt.Print("Usage: fakeroot [cmd] [args...]\n\n")
fmt.Print("Arguments:\n")
fmt.Print(" [cmd] Command to execute in fakeroot environment. If not specified, the user's login shell will be executed.\n")
fmt.Print(" [args...] Arguments to pass to the executed command.\n")
}