mirror

Mirror free and open-source projects you like with minimal effort
git clone git://git.server.ky/slackcoder/mirror
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exec.go (349B)

      1 package internal
      2 
      3 import (
      4 	"fmt"
      5 	"os/exec"
      6 )
      7 
      8 type CommandNotFound string
      9 
     10 func (e CommandNotFound) Error() string {
     11 	return fmt.Sprintf("command '%s' is missing and must be present for operation", string(e))
     12 }
     13 
     14 func RequireCommand(cmd string) error {
     15 	_, err := exec.LookPath(cmd)
     16 	if err != nil {
     17 		return CommandNotFound(cmd)
     18 	}
     19 
     20 	return nil
     21 }