[Qbs] How to check whether a project is a subproject of another project?

Vincent Hui vincenthk007 at gmail.com
Sat Jul 20 06:27:32 CEST 2019

Hi Christian,

Thank you very much for your reply.

I am sorry for not stating my question clearly. Perhaps I should use
instead of isSubProject, my motivation is to facilitate users of my
libraries which are stored in individual git repository. The main product
of my qbs project is a library, other products are examples and tests.

To reduce build time for whole source tree, I prefer examples and tests of
my project are not built if my qbs project is not a standalone project.
That means my qbs project is added by other projects as a git module. To
save time and code of users of my projects, I prefer users of my projects
do not need to override properties of my qbs project in order not to build
examples and tests. Therefore I need a property to know whether my qbs
project is a standalone project.

By the way, why path is undocumented? Is it because path is private? Why
not make it public? Should path be renamed? path being a property name (
line#186) and a type name is a bit confusing I think.

Thank you again,

On Thu, 18 Jul 2019 at 00:08, Christian Kandeler <Christian.Kandeler at qt.io>

> On Wed, 17 Jul 2019 23:25:49 +0800
> Vincent Hui <vincenthk007 at gmail.com> wrote:
> > I want to check whether a project is a subproject of another project. If
> a
> > project is not a subproject, its examples and tests are built. If a
> project
> > is a subproject, its examples and tests are not built.
> Declare a property in your project that controls this. Override this
> property from the containing project. Done.
> > It seems that the method for checking whether a project is a subproject
> is
> > undocumented.
> There is no such method, and I don't think it would be a good idea to have
> it.
> > I came up with a method to check whether a project is a subproject. It is
> > checking whether  sourceDirectory is equal to path. I tried a simple
> > project, my method works.
> >
> > "
> > Project {
> >     readonly property bool isSubProject: (sourceDirectory === path) ?
> false
> > : true;
> > ......
> > "
> >
> > Can my method work in complicated projects?
> No. The parent project could be in the same directory.
> Christian
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