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README
1Bitbake 2======= 3 4BitBake is a generic task execution engine that allows shell and Python tasks to be run 5efficiently and in parallel while working within complex inter-task dependency constraints. 6One of BitBake's main users, OpenEmbedded, takes this core and builds embedded Linux software 7stacks using a task-oriented approach. 8 9For information about Bitbake, see the OpenEmbedded website: 10 https://www.openembedded.org/ 11 12Bitbake plain documentation can be found under the doc directory or its integrated 13html version at the Yocto Project website: 14 https://docs.yoctoproject.org 15 16Bitbake requires Python version 3.8 or newer. 17 18Contributing 19------------ 20 21Please refer to our contributor guide here: https://docs.yoctoproject.org/contributor-guide/ 22for full details on how to submit changes. 23 24As a quick guide, patches should be sent to bitbake-devel@lists.openembedded.org 25The git command to do that would be: 26 27 git send-email -M -1 --to bitbake-devel@lists.openembedded.org 28 29If you're sending a patch related to the BitBake manual, make sure you copy 30the Yocto Project documentation mailing list: 31 32 git send-email -M -1 --to bitbake-devel@lists.openembedded.org --cc docs@lists.yoctoproject.org 33 34Mailing list: 35 36 https://lists.openembedded.org/g/bitbake-devel 37 38Source code: 39 40 https://git.openembedded.org/bitbake/ 41 42Testing 43------- 44 45Bitbake has a testsuite located in lib/bb/tests/ whichs aim to try and prevent regressions. 46You can run this with "bitbake-selftest". In particular the fetcher is well covered since 47it has so many corner cases. The datastore has many tests too. Testing with the testsuite is 48recommended before submitting patches, particularly to the fetcher and datastore. We also 49appreciate new test cases and may require them for more obscure issues. 50 51To run the tests "zstd" and "git" must be installed. 52 53The assumption is made that this testsuite is run from an initialized OpenEmbedded build 54environment (i.e. `source oe-init-build-env` is used). If this is not the case, run the 55testsuite as follows: 56 57 export PATH=$(pwd)/bin:$PATH 58 bin/bitbake-selftest 59 60The testsuite can alternatively be executed using pytest, e.g. obtained from PyPI (in this 61case, the PATH is configured automatically): 62 63 pytest 64