Convert vs script to getopts

diff --git a/scripts/vs b/scripts/vs
index 6719db1..d1c9fe4 100755 (executable)
--- a/scripts/vs
+++ b/scripts/vs
@@ -6,12 +6,27 @@ print_usage()
 {
     echo "$(basename $0) -- status for version control (${VCS_SUPPORTED})."
     echo "Usage: $(basename $0) [OPTIONS...]"
+    echo "Options:"
+    echo "  -h   display this help and exit"
 }
 
-if [ "x${1}" = "x--help" ]; then
-    print_usage
-    exit 1
-fi
+while getopts "h" flag ;do
+    case ${flag} in
+       h)
+           print_usage
+            exit 0
+           ;;
+       ?)
+           echo "${PROG_NAME}: Invalid option: ${OPTARG}."
+           echo "Try \`${PROG_NAME} --help' for more information."
+           exit 1
+           ;;
+    esac
+done
+shift `expr "${OPTIND}" - 1`
+
+# `$#' now represents the number of arguments after the options.
+# `$1' is the first argument, etc.
 
 SVN_ST_UNKNOWN_COLOR=$(echo -e '\033[1;34m')  # Blue
 SVN_ST_DELETED_COLOR=$(echo -e '\033[0;31m')  # Red