fix(project-template): servers might call wrong config generator version

Provide a configure script which knows the version of config generator

cmake/ConfigGenerator_configureThisHost.sh.in

+#!/bin/bash
+
+## The purpose of this script is to call the correct version of the config
+## generator for a particulat server config. The directory with the 
+## config generator version is put into a template by cmake, and this script
+## is placed into the actual server config directory.
+
+server_type="$1"
+if [[ -z ${server_type} ]]; then
+  echo "No server type given at command line."
+  exit 1
+fi
+
+export CFGDIR="$(dirname "$(which "$0")")"
+
+@ConfigGenerator_DIR@/config myself --type ${server_type}

cmake/config_generator_project.cmake

@@ -18,9 +18,10 @@ cmake_minimum_required(VERSION 3.14)
 
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/Modules)
 
-find_package(ConfigGenerator 02.00 REQUIRED)
+find_package(ConfigGenerator 03.00 REQUIRED)
 list(APPEND CMAKE_MODULE_PATH ${ConfigGenerator_DIR}/shared)
 
+
 set(DESTDIR share/ConfigGenerator-${PROJECT_NAME}-${${PROJECT_NAME}_MAJOR_VERSION}-${${PROJECT_NAME}_MINOR_VERSION})
 
 # find all server type directories in our source directory and copy them to the build directory
@@ -34,6 +35,10 @@ foreach(hostlist ${hostlists})
   list(APPEND servertypes "${servertype}")
 endforeach()
 
+# prepare a configure script which knows the version of config generator to call
+configure_file(${PROJECT_SOURCE_DIR}/cmake/ConfigGenerator_configureThisHost.sh.in ${PROJECT_BINARY_DIR}/configureThisHost.sh @ONLY)
+
+
 # install server types (scripts are installed by upstream config generator project)
 foreach(servertype ${servertypes})
   install(DIRECTORY "${servertype}/settings" DESTINATION "${DESTDIR}/${servertype}")
@@ -41,3 +46,5 @@ foreach(servertype ${servertypes})
   file(GLOB thefiles LIST_DIRECTORIES no "${servertype}/*")
   install(FILES ${thefiles} DESTINATION "${DESTDIR}/${servertype}")
 endforeach()
+
+install(PROGRAMS ${PROJECT_BINARY_DIR}/configureThisHost.sh DESTINATION "${DESTDIR}" )