On 21/11/2017 10:46 PM, Christian Kandeler wrote:
On Tue, 21 Nov 2017 18:01:32 +1300 Christian Gagneraud
<[email protected]> wrote:
Qbs can generate a clang compilation database. Some (most)
clang-based tools are not multi-cpu aware.
For example a typical use of clang-check is cd repo.git qbs
generate -g clangdb profile:someprofile # or cmake
-DCMAKE_EXPORT_COMPILE_COMMANDS=ON find path/to/some/code -name
'*.cpp' | xargs clang-check -analyze -p=someprofile
As a side note, in my case CMake generate one database per "module"
(lib, app, ...), whereas qbs generate a single database for the whole
project. I do prefer the single database right now, but the one database
per Qbs product could be interested too.
The plugin could be improved by adding an optional product name on the
command line.
There are a few annoying things with this: - First you need to give
clang-check which file you want to check - clang-check will process
all the files one after another, even if you have multi CPU
This one you can probably work around, e.g. using GNU parallel.
Thanks for the tips! I wasn't aware of this one, maybe that's all I need
(i'm looking for a simple solution).
- find path/to/some/code -name '*.cpp' might retun files that
should not be compiled.
Wouldn't it be nice if we could ask qbs to run a clang-based tools
on all the source files and with proper load distribution?
Is this something that looks doable? Is it even wanted?
This has come up before. It looked deceptively tempting at first to
just set the compiler to the clang tool and then "build" as normal,
but upon closer inspection, there were some issues. The most obvious
one would be that you'd have to somehow stop after the "compile"
step, but there were others as well (I forgot the details). If you
Agree, it doesn't seems like the right approach even if sounds "easy" at
first.
play around a bit in that area (perhaps with a dedicated module?),
you'll probably get more insight into where the problems lie.
I could maybe use a custom Rule item, one that "transform" every .cpp
file into, say a .clazy file (output of clazy on the .cpp file).
But then i would have to tell qbs that i want a "master" file that
depends on all the individual '.clazy' files.
This still looks like a hack.
Can't stop thinking of a 'qbs for-each-cpp somecommand --someflag {}'
(similar to the 'find' and 'git for-each' commands)
Chris
_______________________________________________
Qbs mailing list
[email protected]
http://lists.qt-project.org/mailman/listinfo/qbs
