1define_property(GLOBAL PROPERTY LICENSE_TEXT
 2    BRIEF_DOCS "Embedded licenses"
 3    FULL_DOCS  "Global string containing all aggregated licenses"
 4)
 5
 6function(license_add_file NAME FILE)
 7    if(NOT IS_ABSOLUTE "${FILE}")
 8        set(FILE "${CMAKE_CURRENT_SOURCE_DIR}/${FILE}")
 9    endif()
10    if(EXISTS "${FILE}")
11        set(TITLE "License for ${NAME}")
12        string(REGEX REPLACE "." "=" UNDERLINE "${TITLE}")
13        file(READ "${FILE}" TEXT)
14        get_property(TMP GLOBAL PROPERTY LICENSE_TEXT)
15        string(APPEND TMP "R\"=L=(${TITLE}\n${UNDERLINE}\n\n${TEXT})=L=\",\n")
16        set_property(GLOBAL PROPERTY LICENSE_TEXT "${TMP}")
17    else()
18        message(WARNING "License file '${FILE}' not found")
19    endif()
20endfunction()
21
22function(license_generate TARGET_NAME)
23    message(STATUS "Generating embedded license file for target: ${TARGET_NAME}")
24    get_property(TEXT GLOBAL PROPERTY LICENSE_TEXT)
25
26    set(CPP_CONTENT "// Generated by CMake\n\n")
27    string(APPEND CPP_CONTENT "const char* LICENSES[] = {\n")
28    string(APPEND CPP_CONTENT "${TEXT}")
29    string(APPEND CPP_CONTENT "nullptr\n")
30    string(APPEND CPP_CONTENT "};\n")
31
32    set(CPP_FILE "${CMAKE_BINARY_DIR}/license.cpp")
33    file(WRITE "${CPP_FILE}" "${CPP_CONTENT}")
34
35    if(TARGET ${TARGET_NAME})
36        target_sources(${TARGET_NAME} PRIVATE "${CPP_FILE}")
37    else()
38        message(FATAL_ERROR "Target '${TARGET_NAME}' does not exist")
39    endif()
40endfunction()