Reproducible builds

Nota

The following instructions are to build Jami with Qt Creator in a Guix-managed container.

The following generates a reproducible environment to easily build from, and code on, the Jami sources.

From the root of the Jami project checkout, using a recent Guix at commit c087d1d:

guix shell -CFN -E GTK_DATA_PREFIX \
  -E QT_QPA_PLATFORM -E XAUTHORITY \
  -E XCURSOR_PATH -E ^XDG -E WAYLAND_DISPLAY \
  -E TARBALLS --share=$HOME --share=/run --share=/scratch \
  --share=/dev --share=/sys \
  qt-creator qtwayland -m manifest.scm -- qtcreator

Nota

If access to a video camera (for example, a webcam) in the container is not required, then the following line can be removed:

--share=/dev --share=/sys \

Importante

Beware of this bug in Qt Creator, which will cause the compiler of a kit to be reset to None if its location changed (which is quite easy to trigger when using different Guix profiles/revisions).

Remove or adjust the --share=/scratch location where the tarballs for the daemon contribs are kept. Set the TARBALLS environment variable with:

export TARBALLS=/scratch/cache/jami

If a non-containerized version is preferred, use the following instead.

guix shell --pure -E GTK_DATA_PREFIX \
  -E QT_QPA_PLATFORM -E XAUTHORITY \
  -E XCURSOR_PATH -E ^XDG -E WAYLAND_DISPLAY \
  -E TARBALLS qt-creator qtwayland -m manifest.scm -- qtcreator

First, ensure that the environment is clean:

git checkout nightly/20260220.0  # there seems to be a QML issue in trunk
./build.py --clean --clean-contribs=all
./build.py --init   # set up the submodules

Then open the project in Qt Creator via File → Open Project, and select the CMakeLists.txt file at the root of the Jami git checkout.

Click the Configure Project button to run the initial CMake and generate the build system.

To build in parallel (using multiple cores) under Build Steps, click the Details button to expand the Build action. In the CMake arguments field, add the -jN argument, where N is the number of CPU cores.

If successful, Jami will build and run from Qt Creator, profile with Valgrind, or step execution from the Qt Creator IDE.