This is the Zephyr RTOS meta tool, west.

https://docs.zephyrproject.org/latest/guides/west/index.html

Installation

Using pip::

pip3 install west

(Use pip3 uninstall west to uninstall it.)

Basic Usage

West lets you manage multiple Git repositories under a single directory using a single file, called the west manifest file, or manifest for short. By default the manifest file is named west.yml. You use west init to set up this directory, then west update to fetch and/or update the repositories named in the manifest.

By default, west uses upstream Zephyr's manifest file <https://github.com/zephyrproject-rtos/zephyr/blob/main/west.yml>_, but west doesn't care if the manifest repository is a Zephyr tree or not.

For more details, see Multiple Repository Management <https://docs.zephyrproject.org/latest/guides/west/repo-tool.html>_ in the west documentation.

Example usage using the upstream manifest file::

mkdir zephyrproject && cd zephyrproject west init west update

What just happened:

• west init clones the upstream west manifest repository, which in this case is the zephyr repository. The manifest repository contains west.yml, a YAML description of the Zephyr installation, including Git repositories and other metadata.

• west update clones the other repositories named in the manifest file, creating working trees in the installation directory zephyrproject.

Use west init -m to specify another manifest repository. Use --mr to use a revision to inialize from; if not given, the remote's default branch is used. Use --mf to use a manifest file other than west.yml.

Additional Commands

West has multiple sub-commands. After running west init, you can run them from anywhere under zephyrproject.

For a list of available commands, run west -h. Get help on a command with west <command> -h.

West is extensible: you can add new commands to west without modifying its source code. See Extensions <https://docs.zephyrproject.org/latest/guides/west/extensions.html>_ in the documentation for details.

Running the Tests

First, install tox::

macOS, Windows

pip3 install tox

Linux

pip3 install --user tox

Then, run the test suite locally from the top level directory::

tox

See the tox configuration file, tox.ini, for more details.

Hacking on West

Installing from Source

The `wheel`_ package is required to install west from source. See "Installing
Wheel" below if you don't have ``wheel`` installed.

To build the west wheel file::

  # macOS, Linux
  python3 setup.py bdist_wheel

  # Windows
  py -3 setup.py bdist_wheel

This will create a file named ``dist/west-x.y.z-py3-none-any.whl``,
where ``x.y.z`` is the current version in setup.py.

To install the wheel::

  pip3 install -U dist/west-x.y.z-py3-none-any.whl

You can ``pip3 uninstall west`` to remove this wheel before re-installing the
version from PyPI, etc.

Editable Install
~~~~~~~~~~~~~~~~

To run west "live" from the current source code tree, run this command from the
top level directory in the west repository::

  pip3 install -e .

This is useful if you are actively working on west and don't want to re-package
and install a wheel each time you run it.

Installing Wheel
~~~~~~~~~~~~~~~~

On macOS and Windows, you can install wheel with::

  pip3 install wheel

That also works on Linux, but you may want to install wheel from your
system package manager instead -- e.g. if you installed pip from your
system package manager. The wheel package is likely named something
like ``python3-wheel`` in that case.

.. _wheel: https://wheel.readthedocs.io/en/latest/