Add: [CMake] Install menu and media files

cmake/scripts/Desktop.cmake

@@ -0,0 +1,60 @@
+cmake_minimum_required(VERSION 3.5)
+
+#
+# Create a desktop file with the correct translations.
+#
+
+if(NOT DESKTOP_SOURCE_FILE)
+    message(FATAL_ERROR "Script needs DESKTOP_SOURCE_FILE defined")
+endif()
+if(NOT DESKTOP_BINARY_FILE)
+    message(FATAL_ERROR "Script needs DESKTOP_BINARY_FILE defined")
+endif()
+if(NOT BINARY_NAME)
+    message(FATAL_ERROR "Script needs BINARY_NAME defined")
+endif()
+
+set(ARGC 1)
+set(ARG_READ NO)
+
+# Read all the arguments given to CMake; we are looking for -- and everything
+# that follows. Those are our language files.
+while(ARGC LESS CMAKE_ARGC)
+    set(ARG ${CMAKE_ARGV${ARGC}})
+
+    if(ARG_READ)
+        list(APPEND LANG_SOURCE_FILES "${ARG}")
+    endif()
+
+    if(ARG STREQUAL "--")
+        set(ARG_READ YES)
+    endif()
+
+    math(EXPR ARGC "${ARGC} + 1")
+endwhile()
+
+# Place holder format is @<ini_key>_<str_id>@
+file(STRINGS "${DESKTOP_SOURCE_FILE}" PLACE_HOLDER REGEX "^@")
+string(REGEX REPLACE "@([^_]+).*@" "\\1" INI_KEY "${PLACE_HOLDER}")
+string(REGEX REPLACE "@[^_]+_(.*)@" "\\1" STR_ID "${PLACE_HOLDER}")
+string(REGEX REPLACE "@(.*)@" "\\1" PLACE_HOLDER "${PLACE_HOLDER}")
+
+# Get the translations
+foreach(LANGFILE IN LISTS LANG_SOURCE_FILES)
+    file(STRINGS "${LANGFILE}" LANGLINES REGEX "^(##isocode|${STR_ID})" ENCODING UTF-8)
+    string(FIND "${LANGLINES}" "${STR_ID}" HAS_STR_ID)
+    if(HAS_STR_ID LESS 0)
+        continue()
+    endif()
+    string(REGEX REPLACE "##isocode ([^;]+).*" "\\1" ISOCODE "${LANGLINES}")
+    if("${ISOCODE}" STREQUAL "en_GB")
+        string(REGEX REPLACE "[^:]*:(.*)" "${INI_KEY}=\\1" LANGLINES "${LANGLINES}")
+    else()
+        string(REGEX REPLACE "[^:]*:(.*)" "${INI_KEY}[${ISOCODE}]=\\1" LANGLINES "${LANGLINES}")
+    endif()
+    list(APPEND ${PLACE_HOLDER} ${LANGLINES})
+endforeach()
+list(SORT ${PLACE_HOLDER})
+string(REPLACE ";" "\n" ${PLACE_HOLDER} "${${PLACE_HOLDER}}")
+
+configure_file(${DESKTOP_SOURCE_FILE} ${DESKTOP_BINARY_FILE})