scyther/src/SVNVersion.cmake
2007-01-08 07:21:09 +00:00

65 lines
2.1 KiB
CMake

################################################################
# Name: SVNVersion.cmake
# Purpose: Determine subversion revision id for Scyther
# and write it into a macro in version.h
# Author: Cas Cremers
################################################################
# Technically, this only needs to be redone each time a file
# changes, so this is a target with dependencies on all files.
# Checkout version info
find_program (SVNVERSION_EXECUTABLE NAMES svnversion)
mark_as_advanced (SVNVERSION_EXECUTABLE)
mark_as_advanced (SVNVERSION_DYNAMIC)
set (SVNVERSION_DYNAMIC false)
if (SVNVERSION_EXECUTABLE)
# test whether svnversion gives useful info
execute_process (
COMMAND ${SVNVERSION_EXECUTABLE} --no-newline
OUTPUT_VARIABLE SVN_Result
)
mark_as_advanced (SVN_Result)
if (NOT ${SVN_Result} STREQUAL "exported")
# svnversion gives useful stuff
# write to file
file (WRITE version.h "#define SVNVERSION \"${SVN_Result}\"\n")
if (UNIX)
# Unix system
# mark for dynamic generation in
# Makefile
set (SVNVERSION_DYNAMIC true)
endif (UNIX)
endif (NOT ${SVN_Result} STREQUAL "exported")
mark_as_advanced (SVNDIR)
endif (SVNVERSION_EXECUTABLE)
# If dynamic generation is required, this means another target in the
# makefile
if (SVNVERSION_DYNAMIC)
# add a command to generate version.h
message (STATUS "Generating version.h dynamically using svnversion command")
add_custom_command (
OUTPUT version.h
# The version number depends on all the files; if they
# don't change, neither should the version number
# (although this might be incorrect when updating the
# current directory)
DEPENDS ${Scyther_sources}
DEPENDS .svn
COMMAND echo
ARGS "\\#define SVNVERSION \\\"`${SVNVERSION_EXECUTABLE}`\\\"" >version.h
COMMENT "Generating subversion version information in version.h using svnversion command"
)
else (SVNVERSION_DYNAMIC)
# Don't dynamically generate, simply empty every time
file (WRITE version.h "#define SVNVERSION \"Unknown\"\n")
endif (SVNVERSION_DYNAMIC)
# add the version number to the sources
set_source_files_properties(version.h
PROPERTIES
GENERATED true)
set (Scyther_sources ${Scyther_sources} version.h)