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