output error for incorrect action in chroot prep scripts

...alongside printing usage (which is perhaps unnecessary), so that it is
actually clear to users that a problem occurred, and what.

and capture it before option processing of remaining args.

Gbp-Dch: Ignore

scripts/build/chroot_apt

@@ -18,6 +18,9 @@ set -e
 DESCRIPTION="Manage /etc/apt/apt.conf"
 USAGE="${PROGRAM} {install|install-binary|remove} [--force]"
 
+_ACTION="${1}"
+shift
+
 # Processing arguments and configuration files
 Init_config_data "${@}"
 
@@ -26,7 +29,7 @@ Require_stagefiles config bootstrap
 
 CONFD="chroot/etc/apt/apt.conf.d"
 
-case "${1}" in
+case "${_ACTION}" in
 	install|install-binary)
 		Echo_message "Configuring file /etc/apt/apt.conf"
 
@@ -220,6 +223,7 @@ case "${1}" in
 		;;
 
 	*)
+		Echo_error "Invalid action parameter: '${_ACTION}'"
 		Usage --fail
 		;;
 esac

scripts/build/chroot_archives

@@ -441,6 +441,7 @@ case "${_ACTION}" in
 		;;
 
 	*)
+		Echo_error "Invalid action parameter: '${_ACTION}'"
 		Usage --fail
 		;;
 esac

scripts/build/chroot_debianchroot

@@ -18,13 +18,16 @@ set -e
 DESCRIPTION="Manage /etc/debian_chroot"
 USAGE="${PROGRAM} {install|remove} [--force]"
 
+_ACTION="${1}"
+shift
+
 # Processing arguments and configuration files
 Init_config_data "${@}"
 
 # Requiring stage file
 Require_stagefiles config bootstrap
 
-case "${1}" in
+case "${_ACTION}" in
 	install)
 		Echo_message "Configuring file /etc/debian_chroot"
 
@@ -70,6 +73,7 @@ case "${1}" in
 		;;
 
 	*)
+		Echo_error "Invalid action parameter: '${_ACTION}'"
 		Usage --fail
 		;;
 esac

scripts/build/chroot_devpts

@@ -18,13 +18,16 @@ set -e
 DESCRIPTION="Mount /dev/pts"
 USAGE="${PROGRAM} {install|remove} [--force]"
 
+_ACTION="${1}"
+shift
+
 # Processing arguments and configuration files
 Init_config_data "${@}"
 
 # Requiring stage file
 Require_stagefiles config bootstrap
 
-case "${1}" in
+case "${_ACTION}" in
 	install)
 		Echo_message "Begin mounting /dev/pts..."
 
@@ -66,6 +69,7 @@ case "${1}" in
 		;;
 
 	*)
+		Echo_error "Invalid action parameter: '${_ACTION}'"
 		Usage --fail
 		;;
 esac

scripts/build/chroot_dpkg

@@ -18,13 +18,16 @@ set -e
 DESCRIPTION="Manage /sbin/dpkg"
 USAGE="${PROGRAM} {install|remove} [--force]"
 
+_ACTION="${1}"
+shift
+
 # Processing arguments and configuration files
 Init_config_data "${@}"
 
 # Requiring stage file
 Require_stagefiles config bootstrap
 
-case "${1}" in
+case "${_ACTION}" in
 	install)
 		Echo_message "Configuring file /sbin/start-stop-daemon"
 
@@ -87,6 +90,7 @@ EOF
 		;;
 
 	*)
+		Echo_error "Invalid action parameter: '${_ACTION}'"
 		Usage --fail
 		;;
 esac

scripts/build/chroot_hostname

@@ -18,13 +18,16 @@ set -e
 DESCRIPTION="Manage /bin/hostname"
 USAGE="${PROGRAM} {install|remove} [--force]"
 
+_ACTION="${1}"
+shift
+
 # Processing arguments and configuration files
 Init_config_data "${@}"
 
 # Requiring stage file
 Require_stagefiles config bootstrap
 
-case "${1}" in
+case "${_ACTION}" in
 	install)
 		# Checking stage file
 		Check_stagefile
@@ -80,6 +83,7 @@ EOF
 		;;
 
 	*)
+		Echo_error "Invalid action parameter: '${_ACTION}'"
 		Usage --fail
 		;;
 esac

scripts/build/chroot_hosts

@@ -18,13 +18,16 @@ set -e
 DESCRIPTION="Manage /etc/hosts"
 USAGE="${PROGRAM} {install|remove} [--force]"
 
+_ACTION="${1}"
+shift
+
 # Processing arguments and configuration files
 Init_config_data "${@}"
 
 # Requiring stage file
 Require_stagefiles config bootstrap
 
-case "${1}" in
+case "${_ACTION}" in
 	install)
 		Echo_message "Configuring file /etc/hosts"
 
@@ -86,6 +89,7 @@ EOF
 		;;
 
 	*)
+		Echo_error "Invalid action parameter: '${_ACTION}'"
 		Usage --fail
 		;;
 esac

scripts/build/chroot_proc

@@ -18,13 +18,16 @@ set -e
 DESCRIPTION="Mount /proc"
 USAGE="${PROGRAM} {install|remove} [--force]"
 
+_ACTION="${1}"
+shift
+
 # Processing arguments and configuration files
 Init_config_data "${@}"
 
 # Requiring stage file
 Require_stagefiles config bootstrap
 
-case "${1}" in
+case "${_ACTION}" in
 	install)
 		Echo_message "Begin mounting /proc..."
 
@@ -70,6 +73,7 @@ case "${1}" in
 		;;
 
 	*)
+		Echo_error "Invalid action parameter: '${_ACTION}'"
 		Usage --fail
 		;;
 esac

scripts/build/chroot_resolv

@@ -18,13 +18,16 @@ set -e
 DESCRIPTION="Manage /etc/resolv.conf"
 USAGE="${PROGRAM} {install|remove} [--force]"
 
+_ACTION="${1}"
+shift
+
 # Processing arguments and configuration files
 Init_config_data "${@}"
 
 # Requiring stage file
 Require_stagefiles config bootstrap
 
-case "${1}" in
+case "${_ACTION}" in
 	install)
 		Echo_message "Configuring file /etc/resolv.conf"
 
@@ -100,6 +103,7 @@ case "${1}" in
 		;;
 
 	*)
+		Echo_error "Invalid action parameter: '${_ACTION}'"
 		Usage --fail
 		;;
 esac

scripts/build/chroot_selinuxfs

@@ -18,6 +18,9 @@ set -e
 DESCRIPTION="Mount /sys/fs/selinux"
 USAGE="${PROGRAM} {install|remove} [--force]"
 
+_ACTION="${1}"
+shift
+
 # Processing arguments and configuration files
 Init_config_data "${@}"
 
@@ -31,7 +34,7 @@ then
 	exit 0
 fi
 
-case "${1}" in
+case "${_ACTION}" in
 	install)
 		Echo_message "Begin mounting /sys/fs/selinux..."
 
@@ -71,6 +74,7 @@ case "${1}" in
 		;;
 
 	*)
+		Echo_error "Invalid action parameter: '${_ACTION}'"
 		Usage --fail
 		;;
 esac

scripts/build/chroot_sysfs

@@ -18,13 +18,16 @@ set -e
 DESCRIPTION="Mount /sys"
 USAGE="${PROGRAM} {install|remove} [--force]"
 
+_ACTION="${1}"
+shift
+
 # Processing arguments and configuration files
 Init_config_data "${@}"
 
 # Requiring stage file
 Require_stagefiles config bootstrap
 
-case "${1}" in
+case "${_ACTION}" in
 	install)
 		Echo_message "Begin mounting /sys..."
 
@@ -64,6 +67,7 @@ case "${1}" in
 		;;
 
 	*)
+		Echo_error "Invalid action parameter: '${_ACTION}'"
 		Usage --fail
 		;;
 esac

scripts/build/chroot_sysv-rc

@@ -18,13 +18,16 @@ set -e
 DESCRIPTION="Manage /usr/sbin/policy-rc.d"
 USAGE="${PROGRAM} {install|remove} [--force]"
 
+_ACTION="${1}"
+shift
+
 # Processing arguments and configuration files
 Init_config_data "${@}"
 
 # Requiring stage file
 Require_stagefiles config bootstrap
 
-case "${1}" in
+case "${_ACTION}" in
 	install)
 		Echo_message "Configuring file /usr/sbin/policy-rc.d"
 
@@ -76,6 +79,7 @@ EOF
 		;;
 
 	*)
+		Echo_error "Invalid action parameter: '${_ACTION}'"
 		Usage --fail
 		;;
 esac

scripts/build/chroot_tmpfs

@@ -18,6 +18,9 @@ set -e
 DESCRIPTION="Use tmpfs to speedup the build"
 USAGE="${PROGRAM} {install|remove} [--force]"
 
+_ACTION="${1}"
+shift
+
 # Processing arguments and configuration files
 Init_config_data "${@}"
 
@@ -29,7 +32,7 @@ fi
 # Requiring stage file
 Require_stagefiles config bootstrap
 
-case "${1}" in
+case "${_ACTION}" in
 	install)
 		Echo_message "Configuring tmpfs for /var/lib/dpkg"
 
@@ -69,6 +72,7 @@ case "${1}" in
 		;;
 
 	*)
+		Echo_error "Invalid action parameter: '${_ACTION}'"
 		Usage --fail
 		;;
 esac