[FYI 0/2] Migration to bitbake 2.0

[Adriaan Schmidt <adriaan.schmidt@siemens.com>]

Hi all,

I recently spent a Friday afternoon playing with bitbake 2.0, and here are the
findings, in patch form, without the actual updated code (which would be bitbake/*,
meta/lib/oe/* and meta/classes/sstate.bbclass.

I made it work for mc:qemuamd64-bullseye:isar-image-base, and for one of
our downstream layers, just to get an idea of the work required.
This post is meant as documentation, for whenever the time comes to apply the
bitbake update...

Changes required:
- new override syntax, with ':' instead of '_'
- some rewording (e.g. WHITELIST -> IGNORE_VARS, ABORT -> HALT)
- new task flag "[network]", which is needed on tasks requiring network
  access. If it is not set, networking is disabled by cloning into a new
  namespace. The current bitbake implementation creates a new namespace for
  network and user, with the latter breaking use of sudo. p1 would be
  the corresponding upstream change in bitbake to make sudo work, as an alternative
  to adding "[network] = 1" to all tasks (which I tested, and which also works).
- SRCREV always needs to be a hash, not a branch or tag. This does not
  actually affect Isar itself, but possibly downstream layers (we often
  use SRCREV="v${PV}").
- sstate internally switches from tgz to zstd compression for artifacts,
  and from pickle to compressed json for siginfo files. This affects the
  isar-sstate script.

Adriaan

Adriaan Schmidt (2):
  bitbake: no user namespace in disable_network
  migrate Isar to bitbake 2.0

 bitbake/lib/bb/utils.py                       |  3 +-
 meta-isar/classes/rpi-sdimg.bbclass           |  4 +-
 meta-isar/classes/ubi-ubifs-img.bbclass       |  4 +-
 meta-isar/conf/distro/raspios-bullseye.conf   |  8 +--
 meta-isar/conf/distro/ubuntu-focal.conf       |  4 +-
 meta-isar/conf/local.conf.sample              |  8 +--
 meta-isar/conf/machine/hikey.conf             |  2 +-
 meta-isar/conf/machine/phyboard-mira.conf     |  2 +-
 meta-isar/conf/machine/qemuamd64.conf         |  6 +-
 meta-isar/conf/machine/qemuriscv64.conf       |  2 +-
 meta-isar/conf/machine/stm32mp15x.conf        |  6 +-
 .../conf/multiconfig/qemuamd64-bullseye.conf  |  2 +-
 meta-isar/recipes-app/cowsay/cowsay_git.bb    |  2 +-
 .../recipes-app/hello-isar/hello-isar.bb      |  4 +-
 meta-isar/recipes-app/libhello/libhello.bb    |  4 +-
 .../bootconfig-rpi/bootconfig-rpi.bb          |  6 +-
 .../optee-os/optee-os-stm32mp15x_3.11.0.bb    |  2 +-
 .../linux/linux-mainline_5.4.70.bb            |  4 +-
 .../linux/linux-phy_5.10.76-phy4.bb           |  2 +-
 meta/classes/base.bbclass                     |  2 +
 meta/classes/dpkg-base.bbclass                |  4 +-
 meta/classes/dpkg-gbp.bbclass                 |  4 +-
 meta/classes/dpkg-prebuilt.bbclass            |  2 +-
 meta/classes/dpkg.bbclass                     |  1 +
 meta/classes/image-tools-extension.bbclass    |  2 +
 meta/classes/image.bbclass                    | 38 ++++++------
 meta/classes/imagetypes.bbclass               | 54 ++++++++---------
 meta/classes/imagetypes_container.bbclass     |  4 +-
 meta/classes/imagetypes_vm.bbclass            |  8 +--
 meta/classes/imagetypes_wic.bbclass           |  5 +-
 meta/classes/rootfs.bbclass                   |  4 +-
 meta/classes/sdk.bbclass                      | 34 +++++------
 meta/conf/bitbake.conf                        | 60 ++++++++++++-------
 meta/conf/distro/debian-common.conf           | 12 ++--
 meta/conf/distro/debian-stretch.conf          |  4 +-
 meta/recipes-bsp/barebox/barebox.inc          |  2 +-
 meta/recipes-bsp/optee-os/optee-os-custom.inc |  2 +-
 .../trusted-firmware-a-custom.inc             |  2 +-
 meta/recipes-bsp/u-boot/u-boot-custom.inc     |  2 +-
 .../isar-bootstrap/isar-bootstrap.inc         | 16 +++--
 .../buildchroot/buildchroot.inc               |  6 +-
 meta/recipes-kernel/kselftest/kselftest.inc   |  8 ++-
 meta/recipes-kernel/linux-module/module.inc   |  2 +-
 meta/recipes-kernel/linux/linux-custom.inc    |  6 +-
 scripts/isar-buildenv-internal                |  4 +-
 scripts/isar-sstate                           | 43 ++++++-------
 testsuite/cibuilder.py                        |  8 +--
 testsuite/citest.py                           |  2 +-
 48 files changed, 227 insertions(+), 189 deletions(-)

-- 
2.30.2