poky/bitbake
Gyorgy Sarvari 3d451f3452 bitbake: fetch2/git: verify if local clone contains tag
In case a recipe specifies a git SRC_URI along with revision and tag, but only the
revision is present in the local clone without the tag (because it was tagged after
it was cloned), then unpacking fails with the following error:

... rev-list -n 1 1.0 failed with exit code 128, output:\nfatal: ambiguous argument \'1.0\': unknown revision or path not in the working tree

This happens because the during the download step only the revision's presence is
verified to decide if the repository needs to be updated.

To avoid this, check also if the tag is present in the local repository, when the "tag"
tag is specified.

(Bitbake rev: 546b347b4d3d82c01ecc99f45296f66e44638adc)

Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2025-08-19 11:35:52 +01:00
..
bin bitbake: bitbake: Update version to 2.15.2 2025-08-12 10:05:11 +01:00
contrib bitbake: contrib: vim: ftdetect: don't conflict with other filetypes 2025-03-03 21:38:57 +00:00
doc bitbake: doc/bitbake-user-manual-ref-variables: update BB_TASK_IONICE_LEVEL 2025-08-19 11:35:52 +01:00
lib bitbake: fetch2/git: verify if local clone contains tag 2025-08-19 11:35:52 +01:00
.b4-config bitbake: b4-config: Add basic support for b4 contribution workflow 2025-02-06 10:40:10 +00:00
.gitattributes
AUTHORS
ChangeLog
LICENSE
LICENSE.GPL-2.0-only
LICENSE.MIT
README bitbake: doc: README: simpler link to contributor guide 2024-02-10 14:13:51 +00:00
SECURITY.md bitbake: SECURITY.md: add file 2023-10-24 12:49:56 +01:00
toaster-requirements.txt bitbake: Update toaster-requirements to add django-log-viewer==1.1.7 2023-10-15 09:12:05 +01:00

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