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Removed short parameters and use Bash features to make code shorter. Thanks to @tianon.

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Signed-off-by: Robin Schneider <ypid@riseup.net>
This commit is contained in:
Robin Schneider 2015-07-13 22:55:14 +02:00
parent 52e193bed7
commit 3f0fa1f643
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GPG key ID: 489A4D5EC353C98A
1 changed files with 7 additions and 12 deletions
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19
contrib/mkimage.sh
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@ -27,8 +27,8 @@ while true; do
case "$1" in
-d|--dir) dir="$2" ; shift 2 ;;
-t|--tag) tag="$2" ; shift 2 ;;
-c|--compression) compression="$2" ; shift 2 ;;
-C|--no-compression) compression="none" ; shift 1 ;;
--compression) compression="$2" ; shift 2 ;;
--no-compression) compression="none" ; shift 1 ;;
-h|--help) usage ;;
--) shift ; break ;;
esac
@ -38,17 +38,12 @@ script="$1"
[ "$script" ] || usage
shift
if [ "$compression" == "auto" ] || [ -z "$compression" ]
if [ "$compression" == 'auto' ] || [ -z "$compression" ]
then
compression="xz"
compression='xz'
fi
if [ "$compression" == "none" ]
then
compression=""
else
compression=".${compression}"
fi
[ "$compression" == 'none' ] && compression=''
if [ ! -x "$scriptDir/$script" ]; then
echo >&2 "error: $script does not exist or is not executable"
@ -86,7 +81,7 @@ nameserver 8.8.8.8
nameserver 8.8.4.4
EOF
tarFile="$dir/rootfs.tar${compression}"
tarFile="$dir/rootfs.tar${compression:+.$compression}"
touch "$tarFile"
(
@ -97,7 +92,7 @@ touch "$tarFile"
echo >&2 "+ cat > '$dir/Dockerfile'"
cat > "$dir/Dockerfile" <<EOF
FROM scratch
ADD $tarFile /
ADD $(basename "$tarFile") /
EOF
# if our generated image has a decent shell, let's set a default command