nix-shell: Barf if -p and -E are both used

Closes #454, #455.
2015-05-21 17:04:43 +02:00
parent 4ca5a9dcfd
commit e0a068cb97
1 changed files with 2 additions and 0 deletions
@@ -217,6 +217,8 @@ for (my $n = 0; $n < scalar @ARGV; $n++) {
    }
 }

+die "$0: ‘-p’ and ‘-E’ are mutually exclusive\n" if $packages && $fromArgs;
+
 if ($packages) {
    push @instArgs, "--expr";
    @exprs = (