// ReadOrDie calls Read and if it returned an error, logs and exits
func ReadOrDie(name string) *File {
cf, err := Read(name)
if err != nil {
log.Die("Reading config file %s [%s]", name, err)
return nil
}
return cf
}
// execOrDie prints the command before executing it, executes it and returns its output.
// if the command failed, calls log.Die with a helpful error message
func runOrDie(cmd *exec.Cmd, env []string) []byte {
cmd.Env = env
log.Info(cmdStr(cmd))
log.Debug("Env: %s", envStr(cmd))
out, err := cmd.CombinedOutput()
if err != nil {
var s string
if len(out) > 0 {
s += fmt.Sprintf("%s\n", string(out))
}
if err != nil {
s += err.Error()
}
log.Die(s)
}
return out
}