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find_package(Git)

if(GIT_FOUND)

# Retrieving GDevelop version from Git tags is disabled as GDevelop 5

# is being developed and we still want the old IDE version to stay at 4.

# The old IDE has the same version number as GDCore/libGD.js

# Hence, version of GDevelop 4 is manually specified in CMakeLists.txt

# EXECUTE_PROCESS(

# COMMAND ${GIT_EXECUTABLE} describe --tags

# OUTPUT_VARIABLE GD_VERSION_STR

# RESULT_VARIABLE GIT_DESCRIBE_RESULT

# ERROR_VARIABLE GIT_DESCRIBE_ERROR

# OUTPUT_STRIP_TRAILING_WHITESPACE

# )

set(GD_VERSION_STR ${CMAKE_ARGV4})

set(VERSIONPRIV_PATH "${CMAKE_ARGV3}/VersionPriv.h")

set(ORIGINAL_CONTENT " ")

if(EXISTS "${VERSIONPRIV_PATH}")

file(READ "${VERSIONPRIV_PATH}" ORIGINAL_CONTENT)

endif()

if("${GD_VERSION_STR}" STREQUAL "")

message(STATUS "No tags found to determine the version of GDevelop!")

set(GD_VERSION_STR "0.0.0-0-unknown")

endif()

# Generate the version RC macro

string(REGEX REPLACE

"([0-9]*)\\.([0-9]*)\\.([0-9]*)-([0-9]*)-.*"

"\\1,\\2,\\3,\\4"

GD_VERSION_RC

"${GD_VERSION_STR}")

string(REGEX REPLACE

"([0-9]*)\\.([0-9]*)\\.([0-9]*)-([0-9]*)-.*"

"\\1, \\2, \\3, \\4"

GD_VERSION_RC_STR

"${GD_VERSION_STR}")

set(NEW_CONTENT "#define GD_VERSION_STRING \"${GD_VERSION_STR}\"\n#define GD_VERSION_RC ${GD_VERSION_RC}\n#define GD_VERSION_RC_STRING \"${GD_VERSION_RC_STR}\\0\"\n#define GD_DATE_STRING __DATE__")

if(NOT ("${ORIGINAL_CONTENT}" STREQUAL "${NEW_CONTENT}"))

# Write only the version file if different from the previous one

message(STATUS "Updating VersionPriv.h header to version ${GD_VERSION_STR}.")

file(WRITE

"${VERSIONPRIV_PATH}"

"${NEW_CONTENT}")

else()

message(STATUS "VersionPriv.h already up-to-date.")

endif()

else()

file(WRITE

"${VERSIONPRIV_PATH}"

"#define GD_VERSION_STRING \"0.0.0-0-unknown\"\n#define GD_VERSION_RC 0, 0, 0, 0\n#define GD_VERSION_RC_STRING \"0, 0, 0, 0\\0\"\n#define GD_DATE_STRING __DATE__")

endif()