qt5base-lts/util/cmake
Alexandru Croitor 066e8a4557 CMake: Handle missing packages in project compile tests
If a find_package() in a try_compile project doesn't find a package,
and we then link against a non-existent target, the configuration
failure of the compile test also fails the configuration of the
project.

To avoid that, separate library targets from non-targets, and make sure
to only link against the targets if they exist.

pro2cmake now outputs modified compile test project code which iterates
over targets and non-target libraries, and links against them when
needed.

Change-Id: Ib0f4b5f07af13929c42d01a661df2cabdf9b926b
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2020-04-09 11:26:42 +02:00
..
tests cmake: Remove APPLE prefix from platform names 2020-03-16 17:57:56 +01:00
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 cmake: Remove APPLE prefix from platform names 2020-03-16 17:57:56 +01:00
configurejson2cmake.py CMake: Handle finding of OpenSSL headers correctly 2020-04-08 22:03:24 +02:00
generate_module_map.sh Begin port of qtbase to CMake 2018-11-01 11:48:46 +00:00
helper.py CMake: Handle finding of OpenSSL headers correctly 2020-04-08 22:03:24 +02:00
json_parser.py cmake scripts: more type cleanup 2019-10-09 09:14:19 +00:00
Makefile cmake scripts: format with black 2019-10-11 08:13:54 +00:00
Pipfile cmake scripts: add portalocker as dependency for Pipenv 2019-10-10 13:58:26 +00:00
pro2cmake.py CMake: Handle missing packages in project compile tests 2020-04-09 11:26:42 +02:00
pro_conversion_rate.py cmake scripts: make pro_conversion_rate.py mypy clean 2019-10-10 14:59:55 +00:00
qmake_parser.py CMake: Allow excluding tools and apps from the default 'all' target 2020-04-02 09:39:36 +02:00
README.md CMake: pro2cmake: Add alternative package installation instructions 2020-03-18 14:44:10 +00:00
requirements.txt cmake scripts: format with black 2019-10-11 08:13:54 +00:00
run_pro2cmake.py Fix pro2cmake formatting 2019-11-23 07:07:45 +00:00
special_case_helper.py pro2cmake: Clean up debug messages 2019-11-12 10:12:35 +00:00

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 complaint 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.