rtcds: most commands now enforce lowercase models names

uppercase characters in model names cause problems with the build system, so they are forbidden for most commands.

NEWS

@@ -6,6 +6,7 @@ Changes for NEXT
 - Fixed bug that leads to incorrect ordering of calculations, adding unneeded latency.
 - 'rtcds restart --all' fixed to also restart IOP model.
 - rtcds will now start every model listed on the command line even if some models are already started
+- rtcds now enforces lowercase model names on most commands
 ==================================================================================================
 Changes for 4.2.3
 ==================================================================================================

support/bin/rtcds.in

@@ -364,6 +364,17 @@ disable_sys() {
     done
 }
 
+check_case() {
+    for sys ; do
+	lcsys=$(echo $sys | tr '[:upper:]' '[:lower:]')
+	if [ "$lcsys" != "$sys" ]
+	then
+	  log "*** Error: ${sys} has uppercase letters.  Model names must not have uppercase letters."
+	  exit 3
+	fi
+    done
+}
+
 _lsmod() {
     local systems=($(list_host_sys))
     local rts=(mbuf gpstime)
@@ -603,6 +614,7 @@ case $cmd in
 	    build_world
 	elif [[ $1 ]] ; then
 	    check_env
+	    check_case $@
 	    prep_buildd
 	    build_sys $@
 	else
@@ -621,6 +633,7 @@ case $cmd in
 	    install_world
 	elif [[ $1 ]] ; then
 	    check_env
+	    check_case $@
 	    prep_target
 	    install_sys $@
 	else
@@ -632,6 +645,7 @@ case $cmd in
 	if [[ -n $ALL_FLAG ]] ; then
 	    start_sys $(list_host_sys)
 	elif [[ $1 ]] ; then
+	    check_case $@
 	    start_sys $@
 	else
 	    log "You must specify at least one system to start (or '--all')."
@@ -644,6 +658,7 @@ case $cmd in
 	    stop_sys $(list_host_sys | tac)
 	    start_sys $(list_host_sys)
 	elif [[ $1 ]] ; then
+	    check_case $@
 	    stop_sys $@
 	    start_sys $@
 	else
@@ -656,6 +671,7 @@ case $cmd in
 	    # we do this in reverse so the IOP is stopped last
 	    stop_sys $(list_host_sys | tac)
 	elif [[ $1 ]] ; then
+	    check_case $@
 	    stop_sys $@
 	else
 	    log "You must specify at least one system to stop (or '--all')."
@@ -672,6 +688,7 @@ case $cmd in
 	    # we do this in reverse so the IOP is stopped last
 	    ${cmd}_sys $(list_host_sys | tac)
 	elif [[ $1 ]] ; then
+	    check_case $@
 	    ${cmd}_sys $@
 	else
 	    log "You must specify at least one system to $cmd (or '--all')."
@@ -707,6 +724,7 @@ case $cmd in
 	    log "You must specify system to view."
 	    exit 2
 	fi
+	check_case $1
 	olog="${RCG_BUILDD}/${1}.log"
 	elog="${RCG_BUILDD}/${1}_error.log"
 	echo $olog