On 02/22/2012 05:14 PM, Michael Hertling wrote:
On 02/22/2012 05:02 PM, Andrea Crotti wrote:
Again I'm having some troubles with the different building stages:
I would like to have a target that simply unzips all the files contained
in a directory,
which can be found with a simple globbing.
add_custom_target(unzip_all_eggs
file(GLOB eggs RELATIVE ${EGG_BUILD_DIRECTORY}/*egg)
COMMAND ${PYTHON_EXECUTABLE} ${UNZIP_SCRIPT} ${egg}
)
The problem is that [...]
...FILE(GLOB ...) is a CMake command executed by CMake, whereas the
custom target's COMMANDs are executed by the build tool at build
time, so this approach fails from the first.
A possible solution is to make my UNZIP_SCRIPT smarter and just do the
globbing
itself, is there any other more CMake-like solution?
ADD_CUSTOM_TARGET(unzip_all_eggs
${CMAKE_COMMAND}
-DEGGDIR=${EGG_BUILD_DIRECTORY}
-P ${CMAKE_SOURCE_DIR}/unzip_all_eggs.cmake)
# ${CMAKE_SOURCE_DIR}/unzip_all_eggs.cmake:
SET(PYTHON_EXECUTABLE ...)
SET(UNZIP_SCRIPT ...)
FILE(GLOB eggs RELATIVE ${EGGDIR}/*egg)
EXECUTE_PROCESS(
COMMAND ${PYTHON_EXECUTABLE} ${UNZIP_SCRIPT} ${eggs}
WORKING_DIRECTORY ...
)
You might want to provide an unzip_all_eggs.cmake.in template including
SET(PYTHON_EXECUTABLE @PYTHON_EXECUTABLE@)
SET(UNZIP_SCRIPT @UNZIP_SCRIPT@)
use CONFIGURE_FILE(unzip_all_eggs.cmake.in unzip_all_eggs.cmake @ONLY)
to generate the actual unzip_all_eggs.cmake after searching Python and
your script, and specify -P ${CMAKE_BINARY_DIR}/unzip_all_eggs.cmake.
Thanks, this is really nice in general and I might use it in the future.
The problem is that in this specific case it doesn't buy me much and
adds complexity, because
I would still have only one target unzipping all the eggs.
It would be nice to be able to generate N target 1 for each egg.
Anyway I think that just modifying the python unzip script to do the
globbing is the
easier way to go in this case..
--
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