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bitbake: bitbake-setup: support adding environment-passthroughs to the init-build-env

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This patch adds support for extending the BB_ENV_PASSTHROUGH_ADDITIONS
environment variable from within the `init-build-env` wrapper script -
generated by either oe-core's oe-setup-build, or by `bitbake-setup` -
based on per-configuration JSON settings.

This enables CI workflows to inject environment-specific data - such
as build number, host, build type, or credentials required to fetch
from certain SRC_URIs - which cannot be captured via configuration
fragments alone. These variables are now handled early in the setup
process and exported directly into the build environment.

Example:

  "bb-env-passthrough-additions": [
      "ACME_DIR",
      "ARTIFACTORY_TOKEN",
      "ARTIFACTORY_USERNAME",
      "GITHUB_TOKEN",
      "GITHUB_PROTOCOL",
      "KEY"
  ]
  <snip>

the resulting 'init-build-env' would then be:
  # environment passthrough added by bitbake-setup
  export BB_ENV_PASSTHROUGH_ADDITIONS=" \
  $BB_ENV_PASSTHROUGH_ADDITIONS \
  ACME_DIR \
  ARTIFACTORY_TOKEN \
  ARTIFACTORY_USERNAME \
  GITHUB_TOKEN \
  GITHUB_PROTOCOL \
  KEY"
  # init-build-env wrapper created by bitbake-setup
  . /tmp/acme_master-acme-distro_acme-machine_bang/layers/openembedded-core/oe-init-build-env /tmp/bitbake-setup/gs/acme_master-acme-distro_acme-machine_bang/build

(Bitbake rev: 782ab99e7a04fba43bdcf5763a6280785944ae3f)

Signed-off-by: Johannes Schneider <johannes.schneider@leica-geosystems.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Johannes Schneider 2025-10-08 18:56:56 +02:00 committed by Richard Purdie
parent 39af683c76
commit 60d995ccc4
1 changed files with 26 additions and 1 deletions
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27
bitbake/bin/bitbake-setup
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@ -162,8 +162,31 @@ def setup_bitbake_build(bitbake_config, layerdir, builddir, thisdir):
builddir = os.path.realpath(builddir)
cmd = "cd {}\nset {}\n. ./oe-init-build-env\n".format(oeinitbuildenvdir, builddir)
initbuild_in_builddir = os.path.join(builddir, 'init-build-env')
with open(initbuild_in_builddir, 'w') as f:
f.write(cmd)
f.write("# init-build-env wrapper created by bitbake-setup\n")
f.write(cmd + '\n')
def _prepend_passthrough_to_init_build_env(builddir):
env = bitbake_config.get("bb-env-passthrough-additions")
if not env:
return
initbuild_in_builddir = os.path.join(builddir, 'init-build-env')
with open(initbuild_in_builddir) as f:
content = f.read()
joined = " \\\n".join(env)
env = "export BB_ENV_PASSTHROUGH_ADDITIONS=\" \\\n"
env += "${BB_ENV_PASSTHROUGH_ADDITIONS} \\\n"
env += joined
env += '"'
with open(initbuild_in_builddir, 'w') as f:
f.write("# environment passthrough added by bitbake-setup\n")
f.write(env + '\n')
f.write('\n')
f.write(content)
bitbake_builddir = os.path.join(builddir, "build")
print("Setting up bitbake configuration in\n {}\n".format(bitbake_builddir))
@ -194,6 +217,8 @@ def setup_bitbake_build(bitbake_config, layerdir, builddir, thisdir):
return
_make_init_build_env(bitbake_builddir, os.path.realpath(oeinitbuildenvdir))
_prepend_passthrough_to_init_build_env(bitbake_builddir)
siteconf_symlink = os.path.join(bitbake_confdir, "site.conf")
siteconf = os.path.normpath(os.path.join(builddir, '..', "site.conf"))
if os.path.lexists(siteconf_symlink):