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A Basic Continuous Integration Pipeline with GitHub Actions

In a previous post, I built a basic CI pipeline with CTest that uploaded its results to a CDash board. It worked fine except that we had to start the pipeline manually from the command line. In this post, we define a pipeline with GitHub Actions that runs the CI pipeline whenever a developer pushes a code change to a GitHub repository.

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Build, deploy and run Qt application on embedded device by pressing the Run button in QtCreator.

Cross-Compiling Qt Embedded Applications with QtCreator and CMake

We change the code of our Qt application in QtCreator and press the Run button to try the changes on an embedded device. QtCreator cross-compiles the application, deploys it to the device and runs it on the device. QtCreator performs these steps in a breeze, because we spent quite some time to define a QtCreator Kit. The fairly unknown script from the Yocto layer meta-boot2qt automates most of the kit definition.

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Docker Builds from QtCreator

On your development PC, you simply hit Ctrl+R (Run) in QtCreator to build and run your Qt application. When you want to run the application on an embedded system, you must perform four tasks:

  • You cross-build the Qt application for the target embedded system in a Docker container.
  • You stop the application on the target system.
  • You copy the application from the development PC to the target system with scp.
  • You start the application on the target system.

Wouldn’t you love to hit Ctrl+R in QtCreator and to have QtCreator perform the above four steps for you? Of course, you would! I’ll show you how in this post. Running an application on an embedded system will be the same as running the application on a PC.

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Creating Simple Installers with CPack

In my recent post Benefits of a Relocatable Qt, I explained how to relocate Qt from a build server to a developer PC and from the PC to an embedded system. Qt is installed in three different locations. My solution has two small deficiencies. First, it sets the install rpath to an absolute path and restricts the installation to this absolute path. Second, it forces us to create a tarball of the installation directory on the PC manually. Let us fix these two deficiencies.

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