kas-docker: Pass build and shell options into container

This allows invocations like "kas-docker build --task clean kas.yml".

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

kas-docker

@@ -29,7 +29,7 @@ set -e
 
 usage()
 {
-	printf "%b" "Usage: $0 [OPTIONS] { build | shell } KASFILE\n"
+	printf "%b" "Usage: $0 [OPTIONS] { build | shell } [KASOPTIONS] KASFILE\n"
 	printf "%b" "       $0 [OPTIONS] clean\n"
 	printf "%b" "\nPositional arguments:\n"
 	printf "%b" "build\t\tCheck out repositories and build target.\n"
@@ -59,6 +59,7 @@ else
 	KAS_WORK_DIR=$(pwd)
 fi
 
+# parse kas-docker options
 while [ $# -gt 0 ]; do
 	case "$1" in
 	--isar)
@@ -115,13 +116,8 @@ while [ $# -gt 0 ]; do
 		exit 0
 		;;
 	build|shell)
-		[ $# -eq 2 ] || usage
 		CMD=$1
-		FILE=$(echo $2 | cut -d ':' -f 1)
+		shift 1
-		if ! FIRST_KAS_FILE=$(readlink -e $FILE); then
-			echo "Error: configuration file '$FILE' not found"
-			exit 1
-		fi
 		break
 		;;
 	*)
@@ -132,13 +128,42 @@ done
 
 [ -n "${CMD}" ] || usage
 
+# parse kas sub-command (build or shell) options
+while [ $# -gt 0 ]; do
+	case "$1" in
+	-h|--help)
+		trace docker run ${DOCKER_IMAGE} ${CMD} --help
+		exit 0
+		;;
+	--skip|--target|--task|-c|--command)
+		KAS_OPTIONS="${KAS_OPTIONS} $1 '$2'"
+		shift 2
+		;;
+	-*)
+		KAS_OPTIONS="${KAS_OPTIONS} $1"
+		shift 1
+		;;
+	*)
+		KAS_FILE=$1
+		FILE=$(echo ${KAS_FILE} | cut -d ':' -f 1)
+		if ! FIRST_KAS_FILE=$(readlink -e $FILE); then
+			echo "Error: configuration file '$FILE' not found"
+			exit 1
+		fi
+		shift 1
+		;;
+	esac
+done
+
+[ -n "${FIRST_KAS_FILE}" ] || usage
+
 KAS_FILE_DIR=$(dirname ${FIRST_KAS_FILE})
 
 REPO_DIR=$(git -C ${KAS_FILE_DIR} rev-parse --show-toplevel 2>/dev/null) \
 	|| REPO_DIR=$(hg -cwd ${KAS_FILE_DIR} root 2>/dev/null) \
 	|| REPO_DIR=${KAS_FILE_DIR}
 
-KAS_FILE=/repo/$(echo $2 | sed 's|'${REPO_DIR}'/||g;s|:|:/repo/|g')
+KAS_FILE=/repo/$(echo ${KAS_FILE} | sed 's|'${REPO_DIR}'/||g;s|:|:/repo/|g')
 
 trace mkdir -p ${KAS_WORK_DIR}
 
@@ -188,4 +213,4 @@ for var in SHELL TERM KAS_DISTRO KAS_MACHINE KAS_TARGET KAS_TASK \
 done
 
 trace docker run "$@" ${ISAR_ARGS} ${USER_ARGS} \
-		 ${DOCKER_IMAGE} ${CMD} ${KAS_FILE}
+		 ${DOCKER_IMAGE} ${CMD} ${KAS_OPTIONS} ${KAS_FILE}