Oh wait, I read it wrong... Try ${} to get the value of the variable. (It contains a file name, right?)
D On Saturday, October 31, 2015, David Cole <dlrd...@aol.com> wrote: > Because you're giving DEPENDS as a target name, this is only an ordering > dependency, stating that the command should run after the target is built. > But not necessarily re-build whenever the target is re-built... > > If you want to re-run the command based on a file changing instead, then > use the full path to a file name as your DEPENDS argument. The downloaded > file itself, or the extracted data file the command uses would probably be > reasonable choices. > > Read the DEPENDS section of > https://cmake.org/cmake/help/v3.3/command/add_custom_command.html > carefully. > > > HTH, > David C. > > > On Saturday, October 31, 2015, Nico Schlömer <nico.schloe...@gmail.com > <javascript:_e(%7B%7D,'cvml','nico.schloe...@gmail.com');>> wrote: > >> After downloading a file with ExternalData_Expand_Arguments [1], I would >> like to execute a command on the data to produce another file. So far, I >> have >> ``` >> ExternalData_Expand_Arguments( >> noshTestFetchData >> OUT_DATA DATA{${CMAKE_SOURCE_DIR}/test/data/${file}} >> ) >> ExternalData_Add_Target(noshTestFetchData) >> >> add_custom_command( >> OUTPUT ${CMAKE_BINARY_DIR}/test/data/pacman.e.2.0 >> COMMAND decomp -p 2 ${CMAKE_BINARY_DIR}/test/data/pacman.e >> DEPENDS noshTestFetchData >> ) >> ``` >> The file is downloaded alright, but the `add_custom_command` is never >> triggered. Why not? >> >> This is with CMake 3.2.2. >> >> Cheers, >> Nico >> >> [1] https://cmake.org/cmake/help/v3.3/module/ExternalData.html >> >
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