From: Mike Frysinger <vapier@gentoo.org>
Date: Sun, 7 Oct 2007 19:16:50 +0000 (-0000)
Subject: add standard --help/--version options
X-Git-Tag: v2.2_pre1~690
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=43230a52fe0ebd27ed996090ef18c7a6215bb66e;p=portage.git

add standard --help/--version options

svn path=/main/trunk/; revision=7993
---

diff --git a/bin/etc-update b/bin/etc-update
index d40400d19..73dfb6bf0 100755
--- a/bin/etc-update
+++ b/bin/etc-update
@@ -445,10 +445,34 @@ die() {
 	exit ${2}
 }
 
+usage() {
+	cat <<-EOF
+	etc-update: Handle configuration file updates
+
+	Usage: etc-update [options]
+
+	Options:
+	  -h, --help     Show help and run away
+	  -V, --version  Show version and trundle away
+	EOF
+
+	[[ -n ${*:2} ]] && printf "\nError: %s\n" "${*:2}" 1>&2
+
+	exit ${1:-0}
+}
+
 #
 # Run the script
 #
-scriptname=$(basename $0)
+
+while [[ -n $1 ]] ; do
+	case $1 in
+		-h|--help)    usage;;
+		-V|--version) echo '$Id$'; exit 0;;
+		*)            usage 1 "Invalid option '$1'";;
+	esac
+	shift
+done
 
 type portageq > /dev/null || exit $?
 eval $(portageq envvar -v CONFIG_PROTECT \