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/mkrc.in | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'bin/mkrc.in')

diff --git a/bin/mkrc.in b/bin/mkrc.in
index 9af0b6a..6545e55 100755
--- a/bin/mkrc.in
+++ b/bin/mkrc.in
@@ -30,7 +30,7 @@ show_help() {
 }
 
 if [ $# -eq 0 ]; then
-  show_help 1
+  show_help 64
 fi
 
 for DOTFILES_DIR in $DOTFILES_DIRS $DEFAULT_DOTFILES_DIR; do
@@ -46,7 +46,7 @@ always_copy=0
 force_symlink=0
 install_args=
 
-while getopts ChSsVvqot:d:B: opt; do
+while getopts :ChSsVvqot:d:B: opt; do
   case "$opt" in
     C) always_copy=1 ;;
     h) show_help ;;
@@ -63,6 +63,7 @@ while getopts ChSsVvqot:d:B: opt; do
       hostname="$OPTARG"
       install_args="-B $hostname"
       ;;
+    ?) show_help 64 ;;
   esac
 done
 shift $(($OPTIND-1))
-- 
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