cd4fe0aada
After some further feedback, additional changes are made: 1. 'setting' command is renamed to 'settings' to better reflect that it is an interface to various ways of managing settings. 2. This command now has a -l/--list option to list all settings with their values (same as 'git config -l'). 3. A new level of settings (built-in defaults) is added, and used as a last resort after command line options, top dir settings file and global settings file. 4. This means bitbake-setup does not have to write and use a global settings file, and it no longer does so when initializing a build, avoiding default 'pollution' of ~/.config/bitbake-setup/ which can be problematic or unwelcome. A global settings file is still created if a setting is explicitly requested to be placed into it. 5. 'install-global-settins' is removed as the use case for it (tweak default settings before using them to initialize a build) can be achieved by setting the settings individually. 5. Similarly, a top dir settings file is no longer created by default and only appears if a setting needs to be written into it. 6. Default dl-dir is again created inside a top directory and not in ~/.cache/ to make default builds fully contained in the top directory (which was also asked about). (Bitbake rev: 664f8ec48d42d2ddc5f234c4f7d590fa597f489a) Signed-off-by: Alexander Kanavin <alex@linutronix.de> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Bitbake
BitBake is a generic task execution engine that allows shell and Python tasks to be run efficiently and in parallel while working within complex inter-task dependency constraints. One of BitBake's main users, OpenEmbedded, takes this core and builds embedded Linux software stacks using a task-oriented approach.
For information about Bitbake, see the OpenEmbedded website: https://www.openembedded.org/
Bitbake plain documentation can be found under the doc directory or its integrated html version at the Yocto Project website: https://docs.yoctoproject.org
Bitbake requires Python version 3.8 or newer.
Contributing
Please refer to our contributor guide here: https://docs.yoctoproject.org/contributor-guide/ for full details on how to submit changes.
As a quick guide, patches should be sent to bitbake-devel@lists.openembedded.org The git command to do that would be:
git send-email -M -1 --to bitbake-devel@lists.openembedded.org
If you're sending a patch related to the BitBake manual, make sure you copy the Yocto Project documentation mailing list:
git send-email -M -1 --to bitbake-devel@lists.openembedded.org --cc docs@lists.yoctoproject.org
Mailing list:
https://lists.openembedded.org/g/bitbake-devel
Source code:
https://git.openembedded.org/bitbake/
Testing
Bitbake has a testsuite located in lib/bb/tests/ whichs aim to try and prevent regressions. You can run this with "bitbake-selftest". In particular the fetcher is well covered since it has so many corner cases. The datastore has many tests too. Testing with the testsuite is recommended before submitting patches, particularly to the fetcher and datastore. We also appreciate new test cases and may require them for more obscure issues.
To run the tests "zstd" and "git" must be installed.
The assumption is made that this testsuite is run from an initialized OpenEmbedded build
environment (i.e. source oe-init-build-env is used). If this is not the case, run the
testsuite as follows:
export PATH=$(pwd)/bin:$PATH
bin/bitbake-selftest
The testsuite can alternatively be executed using pytest, e.g. obtained from PyPI (in this case, the PATH is configured automatically):
pytest