[PATCH v4 0/5] Add bblock helper scripts

[Julien Stephan <jstephan@baylibre.com>]

Hi all,

This is v4 for bblock script.

Improvement from v3:
* Add self test
* Add a new "info" level for SIGGEN_LOCKEDSIGS_TASKSIG_CHECK: this allows to
  display a Note when recipe contains locked task(s)

Limitations:
* Silently does nothing if given task doesn't exist
* Silently does nothing when resetting a recipe that doesn't exist

Improvement from v2:
* Add a function in bb.cooker to compute task signatures
* Replace the findSigInfo function by the new created one. This has the
  following advantages:
    * findSigInfo needs the task to be already built to get the siginfo
      file, meaning we cannot lock a recipe on a fresh build
    * we can now generate the signatures for all available task of a given
      recipe
* Check if a given task is already locked. If so, don't duplicate
  entry in bblock.conf

Limitations:
* Needs to taint tasks that are locked, to display a warning
* I may be still missing some checks on user input
* Silently does nothing if given task doesn't exist
* Silently does nothing when resetting a recipe that doesn't exist

I did some tests using qemux86-64 and qemuarm but I may be missing some
corner cases.

Improvement from V1:
* Signatures are now package architecture specific meaning that if you
  switch MACHINE, the lock sig will not be taken into account
* I added the -r option to unlock recipes
* I added a -d option to display the current bblock.conf
* Added an include directive for conf/bblock.conf inside bitbake.conf
* Added -t option to specify the tasks to lock/unlock

Limitations:
* I may be still missing some checks on user input
* I need to find a way to get the list of tasks ( by default still lock
  only the do_compile for now, unless -t is specified)
* Do not check if a particular recipe/task is already locked when trying
  to add lock. So entries may appear multiple times
* We still need the signature of the tasks to be already computed before
  locking. Need to find a way to generate it if missing

V3: https://lists.openembedded.org/g/openembedded-core/message/184932
V2: https://lists.openembedded.org/g/openembedded-core/message/184697
V1: https://lists.openembedded.org/g/openembedded-core/message/184584

My branch is available here [1]

Cheers
Julien

[1]: https://git.yoctoproject.org/poky-contrib/commit/?h=jstephan/bblock
Julien Stephan (5):
  bitbake.conf: include bblock.conf
  bitbake: cooker: add a new function to retrieve task signatures
  sstatesig: add a new info level for SIGGEN_LOCKEDSIGS_TASKSIG_CHECK
  scripts/bblock: add a script to lock/unlock recipes
  oeqa/selftest/bblock: add self test for bblock tool

 bitbake/lib/bb/command.py              |   6 +
 bitbake/lib/bb/cooker.py               |  16 +++
 bitbake/lib/bb/event.py                |   8 ++
 meta/conf/bitbake.conf                 |   1 +
 meta/lib/oe/sstatesig.py               |  13 +-
 meta/lib/oeqa/selftest/cases/bblock.py | 146 ++++++++++++++++++++
 scripts/bblock                         | 182 +++++++++++++++++++++++++
 7 files changed, 371 insertions(+), 1 deletion(-)
 create mode 100644 meta/lib/oeqa/selftest/cases/bblock.py
 create mode 100755 scripts/bblock

--
2.41.0