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https://github.com/vertexwahn/rules_qt6
Bazel rules for Qt6
https://github.com/vertexwahn/rules_qt6
bazel bazel-rules cpp qml qt qt6 ui
Last synced: 2 months ago
JSON representation
Bazel rules for Qt6
- Host: GitHub
- URL: https://github.com/vertexwahn/rules_qt6
- Owner: Vertexwahn
- License: apache-2.0
- Created: 2021-05-18T21:55:54.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2024-03-17T19:56:02.000Z (10 months ago)
- Last Synced: 2024-03-17T20:44:15.374Z (10 months ago)
- Topics: bazel, bazel-rules, cpp, qml, qt, qt6, ui
- Language: Starlark
- Homepage: https://vertexwahn.de/page/open_source/
- Size: 639 KB
- Stars: 19
- Watchers: 5
- Forks: 8
- Open Issues: 5
-
Metadata Files:
- Readme: README.md
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# Bazel rules for Qt6
## Goal
The goal of these rules is to be able to build [Qt6](https://www.qt.io/product/qt6) applications using [Bazel](https://bazel.build/) on Windows,
Linux and macOS without the need to preinstall Qt6.
All the magic to set up Qt6 should be done by Bazel with as little effort as possible.
## Quick start
This project uses [Bazel](https://bazel.build/) as a build system.
The current used version of Bazel is defined in [.bazelversion](tests/.bazelversion).
**Prerequisites:**
The following tools should be installed:
- [Git](https://git-scm.com/)
- [Bazel](https://bazel.build/install)
- A C++ compiler (GCC, Visual Studio, Clang, etc.)
**Checkout, build, and run:**
*All platforms:*
```shell
git clone https://github.com/Vertexwahn/rules_qt6 &&
cd rules_qt6/tests
```
*Run Hello World demo with Windows 10/11 x64 with Visual Studio 2019:*
```shell
bazel run --config=vs2019 //hello_world:hello_world
```
*Run Hello World demo with Windows 10/11 x64 with Visual Studio 2022:*
```shell
bazel run --config=vs2022 //hello_world:hello_world
```
*Run Hello World demo with Ubuntu 20.04:*
```shell
bazel run --config=gcc9 //hello_world:hello_world
```
*Run Hello World demo with Ubuntu 22.04:*
```shell
bazel run --config=gcc11 //hello_world:hello_world
```
*Run Hello World demo with macOS 11/12:*
```shell
# Install Homebrew
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
brew install qt@6 # Unfortunately a preinstalled version of Qt6 is still needed on macOS
brew link qt@6
bazel run --config=macos //hello_world:hello_world
```
**Expected output**
The expected output should be similar (depending on your platform) to the following screenshots:
*Windows*
*Ubuntu*
*macOS*
**More Examples**
More examples can be found in the [tests](tests) directory.
## Current status
Currently, on macOS, these rules need a preinstalled version of Qt on the system (`brew install qt@6 && brew link qt@6`).
On Windows and Linux it should be possible to run `bazel run --config=[gcc9|gcc11|vs2019|vs2022] //hello_world:hello_world` without the need to preinstall Bazel.
These rules require at least Bazel 4.0.0 to work.
With some small modifications, you can get work these rules also on earlier versions of Bazel.
A prebuild version of Qt is fetched from [vertexwahn.de](https://vertexwahn.de/).
Implementation details can be found in [fetch_qt.bzl](fetch_qt.bzl).
I created a [`.bazelrc`](tests/.bazelrc) file that contains a config for `vs2019`, `vs2022`, `gcc9`, `gcc11`, and ``macos`.
This is needed since Qt6 needs at least C++17 standard enabled and different C++ compilers need different flags to enable this.
## Contributions
Any improvements to the Qt6 build experience using Bazel are welcome.
Maybe you have solved this problem already.
In this case,
I would appreciate it if you could share your efforts under some permissive license.
If you name no specific license I assume you are fine with the current used license of this project (Apache 2.0 License).
## Similar projects
- [aabtop/rules_qt](https://github.com/aabtop/rules_qt)
- [bbreslauer/qt-bazel-example](https://github.com/bbreslauer/qt-bazel-example)
- [justbuchanan/bazel_rules_qt](https://github.com/justbuchanan/bazel_rules_qt)
## License
This work is published under Apache 2.0 License.
This work builds on top of [justbuchanan/bazel_rules_qt](https://github.com/justbuchanan/bazel_rules_qt) which is also licensed under Apache 2.0 and
was forked from [bbreslauer/qt-bazel-example](https://github.com/bbreslauer/qt-bazel-example).
See here for details: https://github.com/justbuchanan/bazel_rules_qt/graphs/contributors
## Thanks to all contributors ❤
