feat(hldmserver): add support for the fastdl command

lgsm/modules/command_fastdl.sh

@@ -20,9 +20,13 @@ addonsdir="${systemdir}/addons"
 luasvautorundir="${systemdir}/lua/autorun/server"
 luafastdlfile="lgsm_cl_force_fastdl.lua"
 luafastdlfullpath="${luasvautorundir}/${luafastdlfile}"
+# Only Source supports bzip2 compression.
+if [ "${engine}" == "source" ]; then
+	supportsbzip=""
+fi
 
 # Check if bzip2 is installed.
-if [ ! "$(command -v bzip2 2> /dev/null)" ]; then
+if [ -v supportsbzip ] && [ ! "$(command -v bzip2 2> /dev/null)" ]; then
 	fn_print_fail "bzip2 is not installed"
 	fn_script_log_fail "bzip2 is not installed"
 	core_exit.sh
@@ -225,7 +229,10 @@ fn_fastdl_preview() {
 		fn_script_log_fail "Generating file list."
 		core_exit.sh
 	fi
-	echo -e "about to compress ${totalfiles} files, total size $(fn_human_readable_file_size ${filesizetotal} 0)"
+	if [ -v supportsbzip ]; then
+		compressionmessage="about to compress ${totalfiles} files, "
+	fi
+	echo -e "${compressionmessage}total size $(fn_human_readable_file_size ${filesizetotal} 0)"
 	fn_script_log_info "${totalfiles} files, total size $(fn_human_readable_file_size ${filesizetotal} 0)"
 	rm -f "${tmpdir:?}/fastdl_files_to_compress.txt"
 	if ! fn_prompt_yn "Continue?" Y; then
@@ -431,7 +438,9 @@ fn_fastdl_preview
 fn_clear_old_fastdl
 fn_fastdl_dirs
 fn_fastdl_build
-fn_fastdl_bzip2
+if [ -v supportsbzip ]; then
+	fn_fastdl_bzip2
+fi
 # Finished message.
 echo -e "FastDL files are located in:"
 echo -e "${fastdldir}"

lgsm/modules/core_getopt.sh

@@ -94,7 +94,7 @@ fi
 ## Game server exclusive commands.
 
 # FastDL command.
-if [ "${engine}" == "source" ]; then
+if [ "${engine}" == "source" ] || [ "${shortname}" == "hldm" ]; then
 	currentopt+=("${cmd_fastdl[@]}")
 fi