Question

I have the fololowing directory structure and I would like to simplify things using the Qt .pri files.

Project1/
    project1.pro
    main.cpp
    Algorithms/
        algorithm1.h
        algorithm1.cpp
        ...
        // add an algorithms.pri file here
    Utilities/           
        utiliy1.h
        utiliy1.cpp
        ...
        // add an utilities.pri file here
    Gui/
        gui1.h
        gui1.cpp
        ...
        // add a gui.pri file here

AlgorithmsUnitTest/
     algorithms_unit_test.pro
     main.cpp

UtilitiesUnitTest/
     utilities_unit_test.pro
     main.cpp

One of the problems I am trying to solve is, that when I add or remove a source file from one of the Algorithms, Utilities or Gui folders, I have to remove it from all the other .pro files.

I would like to create a .pri file for each folder containing source and header files in that folder. These files would be included from all the other projects. Then if I add/remove a source or header file, I would remove it only from the corresponding .pri file.

The problem with this approach is that the inclusion of a .pri file in a .pro file is just a simple copy-paste. That is if algorithms_unit_test.pro included the algorithms.pri file, the qmake build system would look for the files in a nonexisting AlgorithmsUnitTest/Algorithms folder.

The solution would be to prepend the contents of the .pri file with

../Project1/

But I do not know how to do this. Please could you teach me how to do it or suggest some other way to organize my projects?

Answer 1

You can use the qmake variable PWD in yours .pri files.

algorithms.pri

SOURCES      += $$PWD/algorithm1.cpp
HEADERS      += $$PWD/algorithm1.h

utilities.pri

SOURCES      += $$PWD/utiliy1.cpp
HEADERS      += $$PWD/utiliy1.h

…

http://doc.qt.digia.com/qt/qmake-variable-reference.html