sig_cloud/diskimage-builder
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Usage message enhancement

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Add --help, add a simple usage and two examples

Change-Id: Iddf07ec1935f337000bd8ffb3d7c1fcc65753e8d
This commit is contained in:
JUN JIE NAN 2013-11-09 03:35:51 +08:00
parent a59797ff24
commit 6d6634e804
1 changed files with 14 additions and 7 deletions
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21
bin/disk-image-create
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@ -42,13 +42,15 @@ if [ "$SCRIPTNAME" == "ramdisk-image-create" ]; then
fi
function show_options () {
echo "Usage: ${SCRIPTNAME} [OPTION]... [ELEMENT]..."
echo
echo "Options:"
echo " -a i386|amd64|armhf -- set the architecture of the image"
echo " -o filename -- set the name of the output file"
echo " -a i386|amd64|armhf -- set the architecture of the image(default amd64)"
echo " -o imagename -- set the imagename of the output image file(default image)"
echo " -x -- turn on tracing"
echo " -u -- uncompressed; do not compress the image - larger but faster"
echo " -c -- clear environment before starting work"
echo " --image-cache directory -- location for cached images (~/.cache/image-create)"
echo " --image-cache directory -- location for cached images(default ~/.cache/image-create)"
echo " --min-tmpfs size -- minimum size in GB needed in tmpfs to build the image"
echo " --no-tmpfs -- do not use tmpfs to speed image build"
echo " --offline -- do not update cached resources"
@ -56,15 +58,20 @@ function show_options () {
echo " -n skip the default inclusion of the 'base' element"
echo " -p package[,package,package] -- list of packages to install in the image"
fi
echo " -h|--help -- display this help and exit"
echo
echo "ELEMENTS_PATH will allow you to specify multiple locations for the elements."
exit 0
echo
echo "Examples:"
echo " ${SCRIPTNAME} -a amd64 -o ubuntu-amd64 vm ubuntu"
echo " export ELEMENTS_PATH=~/source/tripleo-image-elements/elements"
echo " ${SCRIPTNAME} -a amd64 -o fedora-amd64-heat-cfntools vm fedora heat-cfntools"
}
INSTALL_PACKAGES=""
COMPRESS_IMAGE="true"
TEMP=`getopt -o a:ho:xucnp: -l no-tmpfs,offline,min-tmpfs: -n $SCRIPTNAME -- "$@"`
if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
TEMP=`getopt -o a:ho:xucnp: -l no-tmpfs,offline,help,min-tmpfs: -n $SCRIPTNAME -- "$@"`
if [ $? -ne 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
# Note the quotes around `$TEMP': they are essential!
eval set -- "$TEMP"
@ -73,7 +80,7 @@ while true ; do
case "$1" in
-a) export ARCH=$2; shift 2 ;;
-o) export IMAGE_NAME=$2; shift 2 ;;
-h) show_options;;
-h|--help) show_options; exit 0;;
-x) shift; set -x;;
-u) shift; export COMPRESS_IMAGE="";;
-c) shift ; export CLEAR_ENV=1;;