Re: [PATCH v2 1/2] add support for debian build profiles

[vijai kumar <vijaikumar.kanagarajan@gmail.com>]

On Tue, Jan 4, 2022 at 3:33 PM Felix Moessbauer
<felix.moessbauer@siemens.com> wrote:
>
> This patch adds the bitbake variables DEB_BUILD_PROFILES and
> DEB_BUILD_PROFILES_CROSS.
> The values of these variables are used to define the DEB_BUILD_PROFILES
> environment variable.
>
> When cross-compiling, the DEB_BUILD_PROFILES_CROSS variable is defaulted
> to "cross", to be consistent with upstream debian.
>
> Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
> ---
>  RECIPE-API-CHANGELOG.md        |  9 +++++++++
>  meta/classes/dpkg-base.bbclass | 13 +++++++++++++
>  meta/classes/dpkg.bbclass      |  4 +++-
>  3 files changed, 25 insertions(+), 1 deletion(-)
>
> diff --git a/RECIPE-API-CHANGELOG.md b/RECIPE-API-CHANGELOG.md
> index 3bbb42a9..1f3a19b4 100644
> --- a/RECIPE-API-CHANGELOG.md
> +++ b/RECIPE-API-CHANGELOG.md
> @@ -314,3 +314,12 @@ The "NAME" used to be rather static and the TAG was always "latest", now the val
>  ### Renamed variable CONTAINER_FORMATS to CONTAINER_IMAGE_FORMATS
>
>  The meaning remains the same, just the name changed.
> +### Introduce debian build profiles
> +
> +All recipes that inherit from dpkg and dpkg-base can utilize the variables DEB_BUILD_PROFILES and DEB_BUILD_PROFILES_CROSS.
> +These variables define the DEB_BUILD_PROFILES environment variable which is available in do_install_builddeps and do_dpkg_build.
> +When cross compiling, the values in DEB_BUILD_PROFILES_CROSS (default: "cross") are used to define the environment variable.
> +
> +For a list of well-known Debian build profiles and common practices, we refer to Debian's BuildProfileSpec.
> +
> +
> diff --git a/meta/classes/dpkg-base.bbclass b/meta/classes/dpkg-base.bbclass
> index cb5ce4a9..05c1cbd3 100644
> --- a/meta/classes/dpkg-base.bbclass
> +++ b/meta/classes/dpkg-base.bbclass
> @@ -13,6 +13,8 @@ inherit deb-dl-dir
>  DEPENDS ?= ""
>
>  DEPENDS_append_riscv64 = "${@' crossbuild-essential-riscv64' if d.getVar('ISAR_CROSS_COMPILE', True) == '1' and d.getVar('PN') != 'crossbuild-essential-riscv64' else ''}"
> +DEB_BUILD_PROFILES ?= ""
> +DEB_BUILD_PROFILES_CROSS ?= "cross"
>
>  python do_adjust_git() {
>      import subprocess
> @@ -201,7 +203,17 @@ dpkg_runbuild() {
>      die "This should never be called, overwrite it in your derived class"
>  }
>
> +def isar_export_build_profiles(d):
> +    import os
> +    deb_build_profiles = os.environ['DEB_BUILD_PROFILES'] if 'DEB_BUILD_PROFILES' in os.environ else ''
> +    if d.getVar("ISAR_CROSS_COMPILE") == "1":
> +        deb_build_profiles += ' ' + d.getVar('DEB_BUILD_PROFILES_CROSS', True)

Still trying to understand the need for the extra variable. Maybe an
example will help me understand better.
It could just be DEB_BUILD_PROFILES += "cross"

> +    else:
> +        deb_build_profiles += ' ' + d.getVar('DEB_BUILD_PROFILES', True)
> +    os.environ['DEB_BUILD_PROFILES'] = deb_build_profiles.strip()
> +
>  python do_dpkg_build() {
> +    isar_export_build_profiles(d)
>      lock = bb.utils.lockfile(d.getVar("REPO_ISAR_DIR") + "/isar.lock",
>                               shared=True)
>      bb.build.exec_func("dpkg_do_mounts", d)
> @@ -279,6 +291,7 @@ python do_devshell() {
>
>      isar_export_proxies(d)
>      isar_export_ccache(d)
> +    isar_export_build_profiles(d)
>
>      buildchroot = d.getVar('BUILDCHROOT_DIR')
>      pp_pps = os.path.join(d.getVar('PP'), d.getVar('PPS'))
> diff --git a/meta/classes/dpkg.bbclass b/meta/classes/dpkg.bbclass
> index 27fe84f4..68f63f93 100644
> --- a/meta/classes/dpkg.bbclass
> +++ b/meta/classes/dpkg.bbclass
> @@ -9,10 +9,12 @@ PACKAGE_ARCH ?= "${DISTRO_ARCH}"
>  do_install_builddeps() {
>      dpkg_do_mounts
>      E="${@ isar_export_proxies(d)}"
> +    E="${@ isar_export_build_profiles(d)}"
>      distro="${DISTRO}"
>      if [ ${ISAR_CROSS_COMPILE} -eq 1 ]; then
> -       distro="${HOST_DISTRO}"
> +        distro="${HOST_DISTRO}"

Probably an unwanted indent change.

Thanks,
Vijai Kumar K

>      fi
> +
>      deb_dl_dir_import "${BUILDCHROOT_DIR}" "${distro}"
>      sudo -E chroot ${BUILDCHROOT_DIR} /isar/deps.sh \
>          ${PP}/${PPS} ${PACKAGE_ARCH} --download-only
> --
> 2.30.2
>