Exam question about qmake, just for advance users.

bnogal

What projects will be included if your project file contains the next code:

TEMPLATE = subdirs

MODELS = $$files(models/*.pro,true)
 
for(m, MODELS){
    MODEL= $$split(m, "/")
   count(MODEL, 3) {
       SUBDIRS += $$m
   }
}

A) All the projects recursively inside models
B) All the projects inside each direct subfolder of folder models

SGaist

Hi,

Do you mean you want to know what this should be doing because you got it as a question in an exam ?

bnogal

not really, i found it writting the building code for one of my projects.

I really cant find the logic.....

The result is the (A)
And for more fun, if you print SUBDIRS, it contains exactly the paths as i would be (B)
if instead of:
SUBDIRS += $$m

i write:
SUBDIRS += $$member(MODEL,0)/$$member(MODEL,1)/$$member(MODEL,2)

it works.

i must miss a basic about qmake or i must miss a basic about logic.

SGaist

It's because you are trying to get files that match the "models/*.pro" pattern which is not the same as retrieving files from a folder named models and its subfolders following the pattern "*.pro"

bnogal

that is what i pretend with the $files, as i didnt find a better way.

and what i pretend with the loop for, is to check which ones, splitting it by "/", give 3 parts:

"model"
folder
files".pro"

If i use:
$$m,
it adds to SUBDIRS the ones i want, but QtCreator is adding everything

If i add:
$$member(MODEL,0)/$$member(MODEL,1)/$$member(MODEL,2)

it adds the sameones to SUBDIRS, but QtCreator detect almost just the ones in SUBDIRS (a couple more than shouldnt)

As i realized, when try to build it, it seems to process only the correct ones... (the Makefile is correct!) so i believe there is a bug in QtCreator. Can be?

SGaist

If you mean that Qt Creator shows all of your subdirs while only part of them are built then no, its not a bug (well I don't see it as a bug). AFAIK, Qt Creator shows the complete source tree