From cb5fd30c9ca64024335129d393c15a9586433ca2 Mon Sep 17 00:00:00 2001

From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>

Date: Sun, 8 Dec 2013 07:46:46 -0500

Subject: [PATCH] kernel-install: add -h/--help

---

 src/kernel-install/kernel-install | 21 ++++++++++++++-------

 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/src/kernel-install/kernel-install b/src/kernel-install/kernel-install

index 9d3e75d..f5ff362 100644

--- a/src/kernel-install/kernel-install

+++ b/src/kernel-install/kernel-install

@@ -21,9 +21,9 @@

 usage()

 {

-    echo "Usage:" >&2

-    echo "        $0 add <kernel-version> <kernel-image>" >&2

-    echo "        $0 remove <kernel-version> <kernel-image>" >&2

+    echo "Usage:"

+    echo "        $0 add KERNEL-VERSION KERNEL-IMAGE"

+    echo "        $0 remove KERNEL-VERSION KERNEL-IMAGE"

 }

 dropindirs_sort()

@@ -54,6 +54,13 @@ dropindirs_sort()

 export LC_COLLATE=C

+for i in "$@"; do

+    if [ "$i" == "--help" -o "$i" == "-h" ]; then

+        usage

+        exit 0

+    fi

+done

+

 if [[ "${0##*/}" == 'installkernel' ]]; then

     COMMAND='add'

 else

@@ -75,7 +82,7 @@ if ! [[ $MACHINE_ID ]]; then

 fi

 if [[ ! $COMMAND ]] || [[ ! $KERNEL_VERSION ]]; then

-    usage

+    echo "Not enough arguments" >&2

     exit 1

 fi

@@ -90,8 +97,8 @@ readarray -t PLUGINS < <(

 case $COMMAND in

     add)

-        if [[ ! $KERNEL_IMAGE ]]; then

-            usage

+        if [[ ! "$KERNEL_IMAGE" ]]; then

+            echo "Command 'add' requires an argument" >&2

             exit 1

         fi

@@ -121,7 +128,7 @@ case $COMMAND in

         ;;

     *)

-        usage

+        echo "Unknown command '$COMMAND'" >&2

         exit 1

         ;;

 esac