From 19b5663b9ef06a800831d09a3cbceb937923429d Mon Sep 17 00:00:00 2001
From: Mike Burns <mike@mike-burns.com>
Date: Fri, 30 May 2014 14:17:32 +0200
Subject: On bad args, show usage and exit

The lsrc(1), mkrc(1), rcup(1), and rcdn(1) commands will now print a
usage message and exit immediately (with 64, `EX_USAGE`) when given an
option it does not understand.

This includes `--version` and `--help`.

Normal `-h` will print usage and exit successfully, as normal.

Closes #59.
---
 bin/rcdn.in | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'bin/rcdn.in')

diff --git a/bin/rcdn.in b/bin/rcdn.in
index 0393f4d..1179b97 100755
--- a/bin/rcdn.in
+++ b/bin/rcdn.in
@@ -39,7 +39,7 @@ handle_command_line() {
   local symlink_dirs=
   local hostname=
 
-  while getopts VqvhI:x:S:t:d:B: opt; do
+  while getopts :VqvhI:x:S:t:d:B: opt; do
     case "$opt" in
       h) show_help ;;
       B) hostname="$OPTARG" ;;
@@ -53,6 +53,7 @@ handle_command_line() {
       d) dotfiles_dirs="$dotfiles_dirs $OPTARG" ;;
       V) version=1 ;;
       x) excludes="$excludes $OPTARG" ;;
+      ?) show_help 64 ;;
     esac
   done
   shift $(($OPTIND-1))
-- 
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