qt5base-lts/util/cmake
Alexandru Croitor 2389aaf8c7 pro2cmake: Handle qmake condition operator precedence
Unfortunately qmake does not have operator precedence in conditions,
and each sub-expression is simply evaluated left to right.

So c1|c2:c3 is evaluated as (c1|c2):c3 and not c1|(c2:c3). To handle
that in pro2cmake, wrap each condition sub-expression in parentheses.

It's ugly, but there doesn't seem to be another way of handling it,
because SymPy uses Python operator precedence for condition operators,
and it's not possible to change the precendece.

Fixes: QTBUG-78929
Change-Id: I6ab767c4243e3f2d0fea1c36cd004409faba3a53
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2022-02-28 15:41:11 +01:00
..
tests pro2cmake: Handle qmake condition operator precedence 2022-02-28 15:41:11 +01:00
.gitignore pro2cmake: GitIgnore .pro2cmake_cache 2020-10-16 14:53:02 +03:00
cmakeconversionrate.py Improve styling of util/cmake scripts 2019-09-18 12:00:26 +00:00
condition_simplifier_cache.py Fix message about missing portalocker 2019-10-15 12:23:46 +00:00
condition_simplifier.py pro2cmake: Remove superfluous call to _simplify_flavors_in_condition 2022-02-28 15:40:39 +01:00
configurejson2cmake.py configure: Remove unused facility to define variable assignments 2021-11-01 22:32:01 +01:00
generate_module_map.sh Begin port of qtbase to CMake 2018-11-01 11:48:46 +00:00
helper.py pro2cmake: Re-format sources with black 2022-02-28 15:40:32 +01:00
json_parser.py cmake scripts: more type cleanup 2019-10-09 09:14:19 +00:00
Makefile CMake: pro2cmake: Fix errors reported by flake8 and mypy 2020-07-31 12:55:33 +02:00
Pipfile cmake scripts: add portalocker as dependency for Pipenv 2019-10-10 13:58:26 +00:00
pro2cmake.py pro2cmake: Re-format sources with black 2022-02-28 15:40:32 +01:00
pro_conversion_rate.py pro2cmake: Re-format sources with black 2022-02-28 15:40:32 +01:00
qmake_parser.py pro2cmake: Handle qmake condition operator precedence 2022-02-28 15:41:11 +01:00
README.md Do some miscellaneous tidy-up in util/cmake/ 2021-02-15 13:45:25 +01:00
requirements.txt cmake scripts: format with black 2019-10-11 08:13:54 +00:00
run_pro2cmake.py pro2cmake: Re-format sources with black 2022-02-28 15:40:32 +01:00
special_case_helper.py configurejson2cmake: Generalize special case support 2020-07-13 10:51:15 +02:00

CMake Utils

This directory holds scripts to help the porting process from qmake to cmake for Qt6.

Requirements

  • Python 3.7,
  • pipenv or pip to manage the modules.

Python modules

Since Python has many ways of handling projects, you have a couple of options to install the dependencies of the scripts:

Using pipenv

The dependencies are specified on the Pipfile, so you just need to run pipenv install and that will automatically create a virtual environment that you can activate with a pipenv shell.

Using pip

It's highly recommended to use a virtualenvironment to avoid conflict with other packages that are already installed: pip install virtualenv.

  • Create an environment: virtualenv env,
  • Activate the environment: source env/bin/activate (on Windows: source env\Scripts\activate.bat)
  • Install the requirements: pip install -r requirements.txt

If the pip install command above doesn't work, try:

python3.7 -m pip install -r requirements.txt

Contributing to the scripts

You can verify if the styling of a script is compliant with PEP8, with a couple of exceptions:

Install flake8 (pip install flake8) and run it on the script you want to test:

flake8 <file>.py --ignore=E501,E266,W503
  • E501: Line too long (82>79 characters),
  • E266: Too many leading '#' for block comment,
  • W503: Line break occurred before a binary operator)

You can also modify the file with an automatic formatter, like black (pip install black), and execute it:

black -l 100 <file>.py

Using Qt's maximum line length, 100.