161 lines
6.1 KiB
ReStructuredText
161 lines
6.1 KiB
ReStructuredText
.. _west-config:
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Configuration
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#############
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This page documents west's configuration file system, the ``west config``
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command, and configuration options used by built-in commands. For API
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documentation on the ``west.configuration`` module, see
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:ref:`west-apis-configuration`.
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West Configuration Files
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------------------------
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West's configuration file syntax is INI-like; here is an example file:
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.. code-block:: ini
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[manifest]
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path = zephyr
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[zephyr]
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base = zephyr
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Above, the ``manifest`` section has option ``path`` set to ``zephyr``. Another
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way to say the same thing is that ``manifest.path`` is ``zephyr`` in this file.
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There are three types of configuration file:
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1. **System**: Settings in this file affect west's behavior for every user
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logged in to the computer. Its location depends on the platform:
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- Linux: :file:`/etc/westconfig`
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- macOS: :file:`/usr/local/etc/westconfig`
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- Windows: :file:`%PROGRAMDATA%\\west\\config`
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2. **Global** (per user): Settings in this file affect how west behaves when
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run by a particular user on the computer.
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- All platforms: the default is :file:`.westconfig` in the user's home
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directory.
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- Linux note: if the environment variable :envvar:`XDG_CONFIG_HOME` is set,
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then :file:`$XDG_CONFIG_HOME/west/config` is used.
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- Windows note: the following environment variables are tested to find the
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home directory: :envvar:`%HOME%`, then :envvar:`%USERPROFILE%`, then a
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combination of :envvar:`%HOMEDRIVE%` and :envvar:`%HOMEPATH%`.
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3. **Local**: Settings in this file affect west's behavior for the
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current :term:`west installation`. The file is :file:`.west/config`, relative
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to the installation's root directory.
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A setting in a file which appears lower down on this list overrides an earlier
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setting. For example, if ``color.ui`` is ``true`` in the system's configuration
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file, but ``false`` in the installation's, then the final value is
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``false``. Similarly, settings in the user configuration file override system
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settings, and so on.
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.. _west-config-cmd:
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West ``config`` Command
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-----------------------
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The built-in ``config`` command can be used to get and set configuration
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values. You can pass ``west config`` the options ``--system``, ``--global``, or
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``--local`` to specify which configuration file to use. Only one of these can
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be used at a time. If none is given, then writes default to ``--local``, and
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reads show the final value after applying overrides.
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Some examples for common uses follow; run ``west config -h`` for detailed help,
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and see :ref:`west-config-index` for more details on built-in options.
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To set ``manifest.path`` to :file:`some-other-manifest`:
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.. code-block:: console
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west config manifest.path some-other-manifest
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Doing the above means that commands like ``west update`` will look for the
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:term:`west manifest` inside the :file:`some-other-manifest` directory
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(relative to the installation root directory) instead of the directory given to
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``west init``, so be careful!
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To read ``zephyr.base``, the value which will be used as ``ZEPHYR_BASE`` if it
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is unset in the calling environment (also relative to the installation root):
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.. code-block:: console
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west config zephyr.base
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You can switch to another zephyr repository without changing ``manifest.path``
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-- and thus the behavior of commands like ``west update`` -- using:
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.. code-block:: console
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west config zephyr.base some-other-zephyr
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This can be useful if you use commands like ``git worktree`` to create your own
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zephyr directories, and want commands like ``west build`` to use them instead
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of the zephyr repository specified in the manifest. (You can go back to using
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the directory in the upstream manifest by running ``west config zephyr.base
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zephyr``.)
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To set ``color.ui`` to ``false`` in the global (user-wide) configuration file,
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so that west will no longer print colored output for that user when run in any
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installation:
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.. code-block:: console
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west config --global color.ui false
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To undo the above change:
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.. code-block:: console
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west config --global color.ui true
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.. _west-config-index:
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Built-in Configuration Options
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------------------------------
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The following table documents configuration options supported by west's
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built-in commands. Configuration options supported by Zephyr's extension
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commands are documented in the pages for those commands.
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.. NOTE: docs authors: keep this table sorted by section, then option.
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.. list-table::
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:widths: 10 30
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:header-rows: 1
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* - Option
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- Description
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* - ``color.ui``
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- Boolean. If ``true`` (the default), then west output is colorized when
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stdout is a terminal.
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* - ``commands.allow_extensions``
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- Boolean, default ``true``, disables :ref:`west-extensions` if ``false``
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* - ``manifest.path``
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- String, relative path from the :term:`west installation` root directory
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to the manifest repository used by ``west update`` and other commands
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which parse the manifest. Set locally by ``west init``.
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* - ``update.fetch``
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- String, one of ``"smart"`` (the default behavior starting in v0.6.1) or
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``"always"`` (the previous behavior). If set to ``"smart"``, the
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:ref:`west update <west-multi-repo-cmds>` command will skip fetching
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from project remotes when those projects' revisions in the manifest file
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are SHAs or tags which are already available locally. The ``"always"``
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behavior is to unconditionally fetch from the remote.
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* - ``zephyr.base``
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- String, default value to set for the :envvar:`ZEPHYR_BASE` environment
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variable while the west command is running. By default, this is set to
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the path to the manifest project with path :file:`zephyr` (if there is
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one) during ``west init``. If the variable is already set, then this
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setting is ignored unless ``zephyr.base-prefer`` is ``"configfile"``.
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* - ``zephyr.base-prefer``
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- String, one the values ``"env"`` and ``"configfile"``. If set to
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``"env"`` (the default), setting :envvar:`ZEPHYR_BASE` in the calling
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environment overrides the value of the ``zephyr.base`` configuration
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option. If set to ``"configfile"``, the configuration option wins
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instead.
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