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poky/bitbake
Mark Hatle 80f41edbf7 bitbake: gitsm.py: Optimize code and attempt to resolve locking issue
It was reported that a race condition on a shared download directory could
occur with the gitsm fetcher, the result happened with a call to

  git config

that occured within the update_submodules.  Since the fetch is locked by the
upper level, it was probably the prior need_update(...) function causing this
because of some old code.

The gitsm class inherits the git class.  The need_update was overridding the
version in gitsm, so that it forceably checked the submodules.

It's clear we can optimize the code by only updating if the primary repository
needs updating.  Since we don't care if the submodule repository has changed
because if the primary hasn't, references to the submodule won't change.

(Bitbake rev: 346338667edca1f58ace769ad417548da2b8d981)

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2019-01-16 15:35:08 +00:00
..

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:
    http://www.openembedded.org/

Bitbake plain documentation can be found under the doc directory or its integrated
html version at the Yocto Project website:
    http://yoctoproject.org/documentation

Contributing
------------

Please refer to
http://www.openembedded.org/wiki/How_to_submit_a_patch_to_OpenEmbedded
for guidelines on how to submit patches, just note that the latter documentation is intended
for OpenEmbedded (and its core) not bitbake patches (bitbake-devel@lists.openembedded.org)
but in general main guidelines apply. Once the commit(s) have been created, the way to send
the patch is through git-send-email. For example, to send the last commit (HEAD) on current
branch, type:

    git send-email -M -1 --to bitbake-devel@lists.openembedded.org

Mailing list:

    http://lists.openembedded.org/mailman/listinfo/bitbake-devel

Source code:

    http://git.openembedded.org/bitbake/