From mboxrd@z Thu Jan 1 00:00:00 1970 X-GM-THRID: 6931066459248394240 Date: Thu, 25 Feb 2021 00:26:58 -0800 (PST) From: "vijaikumar....@gmail.com" To: isar-users Message-Id: <750dff3c-49a0-4e19-9a80-6bdbb24ba291n@googlegroups.com> In-Reply-To: <20210225091000.5a5ee783@md1za8fc.ad001.siemens.net> References: <20210219195719.29037-1-Vijaikumar_Kanagarajan@mentor.com> <20210219195719.29037-3-Vijaikumar_Kanagarajan@mentor.com> <20210220092859.382eeb3a@md1za8fc.ad001.siemens.net> <20210224131256.14311847@md1za8fc.ad001.siemens.net> <20210225091000.5a5ee783@md1za8fc.ad001.siemens.net> Subject: Re: [RFC PATCH 2/2] recipes-core: Add recipe for base-files MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_172_1308836595.1614241618877" X-TUID: nRaU3guEsTZ2 ------=_Part_172_1308836595.1614241618877 Content-Type: multipart/alternative; boundary="----=_Part_173_34231907.1614241618878" ------=_Part_173_34231907.1614241618878 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On Thursday, February 25, 2021 at 1:50:04 PM UTC+5:30 Henning Schild wrote: > Am Thu, 25 Feb 2021 09:27:38 +0530 > schrieb vijai kumar : > > > On Wed, Feb 24, 2021 at 5:43 PM Henning Schild > > wrote: > > > > > > Am Tue, 23 Feb 2021 14:08:29 +0530 > > > schrieb vijai kumar : > > > > > > > On Sat, Feb 20, 2021 at 1:59 PM Henning Schild > > > > wrote: > > > > > > > > > > Am Sat, 20 Feb 2021 01:27:19 +0530 > > > > > schrieb Vijai Kumar K : > > > > > > > > > > > /etc/os-release is a symlink to /usr/lib/os-release and > > > > > > belongs to the base-files package. > > > > > > > > > > > > ISAR has been modifying the /etc/os-release during > > > > > > postprocessing to inject custom data onto it. > > > > > > > > > > > > Since this file belongs to base-files, an update/reinstall of > > > > > > the package would overwrite the file with the one provided by > > > > > > base-files. > > > > > > > > > > To some degree such an update would be right to do so. The > > > > > BUILD_ID will for sure be invalidated, other custom fields > > > > > might still be valid though. > > > > > > > > > > > Instead of modifying the contents of /etc/os-release during > > > > > > post-processing, provide a modified base-files recipe in ISAR > > > > > > which provides the similar changes in os-release. > > > > > > > > > > I am beginning to wonder if we have to write certain bits to > > > > > other files. Bits that need to go into /etc/os-release could be > > > > > appended with a hook > > > > > See isar-disable-apt-cache, or we use the divert that Silvano > > > > > proposed. > > > > > > > > I have not used hooks before, but looks like it might help in our > > > > case. > > > > > > > > > > > > > > > Signed-off-by: Vijai Kumar K > > > > > > --- > > > > > > .../recipes-core/images/isar-image-base.bb | 2 + > > > > > > meta/classes/image-postproc-extension.bbclass | 40 > > > > > > -------------- meta/classes/image.bbclass > > > > > > | 20 ------- meta/recipes-core/base-files/base-files.bb | > > > > > > 6 ++ meta/recipes-core/base-files/base-files.inc | 55 > > > > > > +++++++++++++++++++ 5 files changed, 63 insertions(+), 60 > > > > > > deletions(-) create mode 100644 > > > > > > meta/recipes-core/base-files/base-files.bb create mode 100644 > > > > > > meta/recipes-core/base-files/base-files.inc > > > > > > > > > > > > diff --git a/meta-isar/recipes-core/images/isar-image-base.bb > > > > > > b/meta-isar/recipes-core/images/isar-image-base.bb index > > > > > > b381d85..4aa7e66 100644 --- > > > > > > a/meta-isar/recipes-core/images/isar-image-base.bb +++ > > > > > > b/meta-isar/recipes-core/images/isar-image-base.bb @@ -11,3 > > > > > > +11,5 @@ LIC_FILES_CHKSUM = > > > > > > "file://${LAYERDIR_core}/licenses/COPYING.GPLv2;md5=751419260 > > > > > > PV = "1.0" inherit image > > > > > > + > > > > > > +IMAGE_INSTALL += "base-files" > > > > > > diff --git a/meta/classes/image-postproc-extension.bbclass > > > > > > b/meta/classes/image-postproc-extension.bbclass index > > > > > > 3f00c21..22c6a95 100644 --- > > > > > > a/meta/classes/image-postproc-extension.bbclass +++ > > > > > > b/meta/classes/image-postproc-extension.bbclass @@ -1,38 +1,6 > > > > > > @@ # This software is a part of ISAR. > > > > > > # Copyright (C) Siemens AG, 2019 > > > > > > > > > > > > -update_etc_os_release() { > > > > > > - OS_RELEASE_BUILD_ID="" > > > > > > - OS_RELEASE_VARIANT="" > > > > > > - OS_RELEASE_VARIANT_VERSION="" > > > > > > - while true; do > > > > > > - case "$1" in > > > > > > - --build-id) OS_RELEASE_BUILD_ID=$2; shift ;; > > > > > > - --variant) OS_RELEASE_VARIANT=$2; shift ;; > > > > > > - --version) OS_RELEASE_VARIANT_VERSION=$2; shift ;; > > > > > > - -*) bbfatal "$0: invalid option specified: $1" ;; > > > > > > - *) break ;; > > > > > > - esac > > > > > > - shift > > > > > > - done > > > > > > - > > > > > > - if [ -n "${OS_RELEASE_BUILD_ID}" ]; then > > > > > > - sudo sed -i '/^BUILD_ID=.*/d' > > > > > > '${IMAGE_ROOTFS}/etc/os-release' > > > > > > - echo "BUILD_ID=\"${OS_RELEASE_BUILD_ID}\"" | \ > > > > > > - sudo tee -a '${IMAGE_ROOTFS}/etc/os-release' > > > > > > - fi > > > > > > - if [ -n "${OS_RELEASE_VARIANT}" ]; then > > > > > > - sudo sed -i '/^VARIANT=.*/d' > > > > > > '${IMAGE_ROOTFS}/etc/os-release' > > > > > > - echo "VARIANT=\"${OS_RELEASE_VARIANT}\"" | \ > > > > > > - sudo tee -a '${IMAGE_ROOTFS}/etc/os-release' > > > > > > - fi > > > > > > - if [ -n "${OS_RELEASE_VARIANT_VERSION}" ]; then > > > > > > - sudo sed -i '/^ISAR_IMAGE_VERSION=.*/d' > > > > > > '${IMAGE_ROOTFS}/etc/os-release' > > > > > > - echo "VARIANT_VERSION=\"${PV}\"" | \ > > > > > > - sudo tee -a '${IMAGE_ROOTFS}/etc/os-release' > > > > > > - fi > > > > > > -} > > > > > > > > > > This is in the image for a good reason, it can not be part of a > > > > > package, otherwise it would already be and we might not have > > > > > that evil postprocess feature. > > > > > > > > > > Try a run, append a package to IMAGE_PREINSTALL, build again > > > > > > > > > > I kind of bet that BUILD_ID will be wrong and not show your new > > > > > commit or "dirty" > > > > > > > > Yes, It is wrong. > > > > > > > > Since we definitely know that we are bringing in a variable > > > > that changes everytime when there is a change to the source > > > > code, we could very well do do_prepare_build[nostamp]="1". > > > > > > > > That with some changes should solve this problem. > > > > > > It will mean that every change will trigger a full reinstall of the > > > image, many changes do that, but it sounds bad. > > > > > > And the false-sharing between images and multiconfigs still remains. > > > > > > Try two images in one layer with differing DESCRIPTIONS and see what > > > happens. That would be the simple case without even thinking mc > > > > So basically os-release varies based on the image built. With a > > single package like this, it is no longer possible. At anypoint we > > could have only one version of the package. > > > > Then, again, it makes me wonder if os-release is an apt place for such > > information. > > We lose updatability with the other approach. We definitely leave one > > file (/etc/os-release or /usr/lib/os-release) > > outdated on a dist upgrade. > > Exactly what i said earlier. We should use another file. And in case we > want to keep some information really in /etc/os-release we need to > write a hook to merge our bits in every single time apt owns it again. > Then we are back to having something like /etc/isar_info. > > Henning > > > Thanks, > > Vijai Kumar K > > > > > > > > Henning > > > > > > > Thanks, > > > > Vijai Kumar K > > > > > > > > > > > > > > > ROOTFS_POSTPROCESS_COMMAND =+ "image_postprocess_configure" > > > > > > image_postprocess_configure() { > > > > > > # Configure root filesystem > > > > > > @@ -45,14 +13,6 @@ image_postprocess_configure() { > > > > > > fi > > > > > > } > > > > > > > > > > > > -ROOTFS_POSTPROCESS_COMMAND =+ "image_postprocess_mark" > > > > > > - > > > > > > -image_postprocess_mark() { > > > > > > - BUILD_ID=$(get_build_id) > > > > > > - update_etc_os_release \ > > > > > > - --build-id "${BUILD_ID}" --variant "${DESCRIPTION}" > > > > > > --version "${PV}" -} > > > > > > - > > > > > > ROOTFS_POSTPROCESS_COMMAND =+ "image_postprocess_machine_id" > > > > > > image_postprocess_machine_id() { > > > > > > # systemd(1) takes care of recreating the machine-id on > > > > > > first boot diff --git a/meta/classes/image.bbclass > > > > > > b/meta/classes/image.bbclass index eddc444..d849175 100644 > > > > > > --- a/meta/classes/image.bbclass > > > > > > +++ b/meta/classes/image.bbclass > > > > > > @@ -49,9 +49,6 @@ SRC_URI += "${@ cfg_script(d) }" > > > > > > > > > > > > DEPENDS += "${IMAGE_INSTALL}" > > > > > > > > > > > > -ISAR_RELEASE_CMD_DEFAULT = "git -C ${LAYERDIR_core} describe > > > > > > --tags --dirty --match 'v[0-9].[0-9]*'" -ISAR_RELEASE_CMD ?= > > > > > > "${ISAR_RELEASE_CMD_DEFAULT}" - > > > > > > image_do_mounts() { > > > > > > sudo flock ${MOUNT_LOCKFILE} -c ' \ > > > > > > mkdir -p "${BUILDROOT_DEPLOY}" "${BUILDROOT_ROOTFS}" > > > > > > "${BUILDROOT_WORK}" @@ -91,23 +88,6 @@ def get_rootfs_size(d): > > > > > > > > > > > > return base_size + rootfs_extra * 1024 > > > > > > > > > > > > -# here we call a command that should describe your whole > > > > > > build system, -# this could be "git describe" or something > > > > > > similar. -# set ISAR_RELEASE_CMD to customize, or override > > > > > > do_mark_rootfs to do something -# completely different > > > > > > -get_build_id() { > > > > > > - if [ $(echo ${BBLAYERS} | wc -w) -ne 2 ] && > > > > > > - [ "${ISAR_RELEASE_CMD}" = > > > > > > "${ISAR_RELEASE_CMD_DEFAULT}" ]; then > > > > > > - bbwarn "You are using external layers that will > > > > > > not be" \ > > > > > > - "considered in the build_id. Consider > > > > > > changing" \ > > > > > > - "ISAR_RELEASE_CMD." > > > > > > - fi > > > > > > - if ! ( ${ISAR_RELEASE_CMD} ) 2>/dev/null; then > > > > > > - bbwarn "\"${ISAR_RELEASE_CMD}\" failed, > > > > > > returning empty build_id." > > > > > > - echo "" > > > > > > - fi > > > > > > -} > > > > > > - > > > > > > python set_image_size () { > > > > > > rootfs_size = get_rootfs_size(d) > > > > > > d.setVar('ROOTFS_SIZE', str(rootfs_size)) > > > > > > diff --git a/meta/recipes-core/base-files/base-files.bb > > > > > > b/meta/recipes-core/base-files/base-files.bb new file mode > > > > > > 100644 index 0000000..d250fc5 > > > > > > --- /dev/null > > > > > > +++ b/meta/recipes-core/base-files/base-files.bb > > > > > > @@ -0,0 +1,6 @@ > > > > > > +# This software is a part of ISAR. > > > > > > +# Copyright (c) Mentor, A Siemens Business, 2021 > > > > > > +# > > > > > > +# SPDX-License-Identifier: MIT > > > > > > + > > > > > > +require base-files.inc > > > > > > diff --git a/meta/recipes-core/base-files/base-files.inc > > > > > > b/meta/recipes-core/base-files/base-files.inc new file mode > > > > > > 100644 index 0000000..68d0e3a > > > > > > --- /dev/null > > > > > > +++ b/meta/recipes-core/base-files/base-files.inc > > > > > > @@ -0,0 +1,55 @@ > > > > > > +# This software is a part of ISAR. > > > > > > +# Copyright (c) Mentor, A Siemens Business, 2021 > > > > > > +# > > > > > > +# SPDX-License-Identifier: MIT > > > > > > + > > > > > > +inherit dpkg > > > > > > + > > > > > > +SRC_URI = "apt://${PN}" > > > > > > + > > > > > > +S="${WORKDIR}/${PN}" > > > > > > + > > > > > > +MAINTAINER = "isar-users " > > > > > > +CHANGELOG_V = "+isar" > > > > > > > > > > Just one such package. We will need for for every single image > > > > > we build in the tree. There can be multiple, especially when > > > > > multiconfig comes into play, but even without. > > > > > > > > > > Think of the internal layer you just helped with for a release, > > > > > it builds the product and the debug variant, which differ in > > > > > their DESCRIPTION and must not share that package. > > > > > > > > > > I am afraid a package will not work. We would need a package per > > > > > image. And that package would need to rebuild every time the > > > > > BUILD_ID changes. > > > > > > > > > > But now you still have the problem that someone could install a > > > > > more recent "base-files" ... Might as well use preferences to > > > > > pin it forever, instead of forking it and giving it a number > > > > > that will hopefully never be smaller than the one from debian > > > > > > > > > > Henning > > > > > > > > > > > +ISAR_RELEASE_CMD_DEFAULT = "git -C ${LAYERDIR_core} describe > > > > > > --tags --dirty --match 'v[0-9].[0-9]*'" +ISAR_RELEASE_CMD ?= > > > > > > "${ISAR_RELEASE_CMD_DEFAULT}" +OS_RELEASE_VARIANT = "Isar > > > > > > target filesystem" +OS_RELEASE_VARIANT_VERSION = "1.0" > > > > > > + > > > > > > +# here we call a command that should describe your whole > > > > > > build system, +# this could be "git describe" or something > > > > > > similar. +# set ISAR_RELEASE_CMD to customize, or override > > > > > > do_mark_rootfs to do something +# completely different > > > > > > +get_build_id() { > > > > > > + if [ $(echo ${BBLAYERS} | wc -w) -ne 2 ] && > > > > > > + [ "${ISAR_RELEASE_CMD}" = > > > > > > "${ISAR_RELEASE_CMD_DEFAULT}" ]; then > > > > > > + bbwarn "You are using external layers that will > > > > > > not be" \ > > > > > > + "considered in the build_id. Consider > > > > > > changing" \ > > > > > > + "ISAR_RELEASE_CMD." > > > > > > + fi > > > > > > + if ! ( ${ISAR_RELEASE_CMD} ) 2>/dev/null; then > > > > > > + bbwarn "\"${ISAR_RELEASE_CMD}\" failed, returning > > > > > > empty build_id." > > > > > > + echo "" > > > > > > + fi > > > > > > +} > > > > > > + > > > > > > +do_prepare_build() { > > > > > > + deb_add_changelog > > > > > > + OS_RELEASE_BUILD_ID=$(get_build_id) > > > > > > + if [ -n "${OS_RELEASE_BUILD_ID}" ]; then > > > > > > + sed -i '/^BUILD_ID=.*/d' '${S}/etc/os-release' > > > > > > + echo "BUILD_ID=\"${OS_RELEASE_BUILD_ID}\"" | \ > > > > > > + tee -a '${S}/etc/os-release' > > > > > > + fi > > > > > > + if [ -n "${OS_RELEASE_VARIANT}" ]; then > > > > > > + sed -i '/^VARIANT=.*/d' '${S}/etc/os-release' > > > > > > + echo "VARIANT=\"${OS_RELEASE_VARIANT}\"" | \ > > > > > > + tee -a '${S}/etc/os-release' > > > > > > + fi > > > > > > + if [ -n "${OS_RELEASE_VARIANT_VERSION}" ]; then > > > > > > + sed -i '/^VARIANT_VERSION=.*/d' '${S}/etc/os-release' > > > > > > + echo > > > > > > "VARIANT_VERSION=\"${OS_RELEASE_VARIANT_VERSION}\"" | \ > > > > > > + tee -a '${S}/etc/os-release' > > > > > > + fi > > > > > > +} > > > > > > > > > > -- > > > > > You received this message because you are subscribed to the > > > > > Google Groups "isar-users" group. To unsubscribe from this > > > > > group and stop receiving emails from it, send an email to > > > > > isar-users+...@googlegroups.com. To view this > > > > > discussion on the web visit > > > > > > https://groups.google.com/d/msgid/isar-users/20210220092859.382eeb3a%40md1za8fc.ad001.siemens.net. > > > > > > > > > > > ------=_Part_173_34231907.1614241618878 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit

On Thursday, February 25, 2021 at 1:50:04 PM UTC+5:30 Henning Schild wrote:
Am Thu, 25 Feb 2021 09:27:38 +0530
schrieb vijai kumar <vijaikumar....@gmail.com>:

> On Wed, Feb 24, 2021 at 5:43 PM Henning Schild
> <henning...@siemens.com> wrote:
> >
> > Am Tue, 23 Feb 2021 14:08:29 +0530
> > schrieb vijai kumar <vijaikumar....@gmail.com>:
> >
> > > On Sat, Feb 20, 2021 at 1:59 PM Henning Schild
> > > <henning...@siemens.com> wrote:
> > > >
> > > > Am Sat, 20 Feb 2021 01:27:19 +0530
> > > > schrieb Vijai Kumar K <Vijaikumar_...@mentor.com>:
> > > >
> > > > > /etc/os-release is a symlink to /usr/lib/os-release and
> > > > > belongs to the base-files package.
> > > > >
> > > > > ISAR has been modifying the /etc/os-release during
> > > > > postprocessing to inject custom data onto it.
> > > > >
> > > > > Since this file belongs to base-files, an update/reinstall of
> > > > > the package would overwrite the file with the one provided by
> > > > > base-files.
> > > >
> > > > To some degree such an update would be right to do so. The
> > > > BUILD_ID will for sure be invalidated, other custom fields
> > > > might still be valid though.
> > > >
> > > > > Instead of modifying the contents of /etc/os-release during
> > > > > post-processing, provide a modified base-files recipe in ISAR
> > > > > which provides the similar changes in os-release.
> > > >
> > > > I am beginning to wonder if we have to write certain bits to
> > > > other files. Bits that need to go into /etc/os-release could be
> > > > appended with a hook
> > > > See isar-disable-apt-cache, or we use the divert that Silvano
> > > > proposed.
> > >
> > > I have not used hooks before, but looks like it might help in our
> > > case.
> > >
> > > >
> > > > > Signed-off-by: Vijai Kumar K
> > > > > <Vijaikumar_...@mentor.com> ---
> > > > > .../recipes-core/images/isar-image-base.bb | 2 +
> > > > > meta/classes/image-postproc-extension.bbclass | 40
> > > > > -------------- meta/classes/image.bbclass
> > > > > | 20 ------- meta/recipes-core/base-files/base-files.bb |
> > > > > 6 ++ meta/recipes-core/base-files/base-files.inc | 55
> > > > > +++++++++++++++++++ 5 files changed, 63 insertions(+), 60
> > > > > deletions(-) create mode 100644
> > > > > meta/recipes-core/base-files/base-files.bb create mode 100644
> > > > > meta/recipes-core/base-files/base-files.inc
> > > > >
> > > > > diff --git a/meta-isar/recipes-core/images/isar-image-base.bb
> > > > > b/meta-isar/recipes-core/images/isar-image-base.bb index
> > > > > b381d85..4aa7e66 100644 ---
> > > > > a/meta-isar/recipes-core/images/isar-image-base.bb +++
> > > > > b/meta-isar/recipes-core/images/isar-image-base.bb @@ -11,3
> > > > > +11,5 @@ LIC_FILES_CHKSUM =
> > > > > "file://${LAYERDIR_core}/licenses/COPYING.GPLv2;md5=751419260
> > > > > PV = "1.0" inherit image
> > > > > +
> > > > > +IMAGE_INSTALL += "base-files"
> > > > > diff --git a/meta/classes/image-postproc-extension.bbclass
> > > > > b/meta/classes/image-postproc-extension.bbclass index
> > > > > 3f00c21..22c6a95 100644 ---
> > > > > a/meta/classes/image-postproc-extension.bbclass +++
> > > > > b/meta/classes/image-postproc-extension.bbclass @@ -1,38 +1,6
> > > > > @@ # This software is a part of ISAR.
> > > > > # Copyright (C) Siemens AG, 2019
> > > > >
> > > > > -update_etc_os_release() {
> > > > > - OS_RELEASE_BUILD_ID=""
> > > > > - OS_RELEASE_VARIANT=""
> > > > > - OS_RELEASE_VARIANT_VERSION=""
> > > > > - while true; do
> > > > > - case "$1" in
> > > > > - --build-id) OS_RELEASE_BUILD_ID=$2; shift ;;
> > > > > - --variant) OS_RELEASE_VARIANT=$2; shift ;;
> > > > > - --version) OS_RELEASE_VARIANT_VERSION=$2; shift ;;
> > > > > - -*) bbfatal "$0: invalid option specified: $1" ;;
> > > > > - *) break ;;
> > > > > - esac
> > > > > - shift
> > > > > - done
> > > > > -
> > > > > - if [ -n "${OS_RELEASE_BUILD_ID}" ]; then
> > > > > - sudo sed -i '/^BUILD_ID=.*/d'
> > > > > '${IMAGE_ROOTFS}/etc/os-release'
> > > > > - echo "BUILD_ID=\"${OS_RELEASE_BUILD_ID}\"" | \
> > > > > - sudo tee -a '${IMAGE_ROOTFS}/etc/os-release'
> > > > > - fi
> > > > > - if [ -n "${OS_RELEASE_VARIANT}" ]; then
> > > > > - sudo sed -i '/^VARIANT=.*/d'
> > > > > '${IMAGE_ROOTFS}/etc/os-release'
> > > > > - echo "VARIANT=\"${OS_RELEASE_VARIANT}\"" | \
> > > > > - sudo tee -a '${IMAGE_ROOTFS}/etc/os-release'
> > > > > - fi
> > > > > - if [ -n "${OS_RELEASE_VARIANT_VERSION}" ]; then
> > > > > - sudo sed -i '/^ISAR_IMAGE_VERSION=.*/d'
> > > > > '${IMAGE_ROOTFS}/etc/os-release'
> > > > > - echo "VARIANT_VERSION=\"${PV}\"" | \
> > > > > - sudo tee -a '${IMAGE_ROOTFS}/etc/os-release'
> > > > > - fi
> > > > > -}
> > > >
> > > > This is in the image for a good reason, it can not be part of a
> > > > package, otherwise it would already be and we might not have
> > > > that evil postprocess feature.
> > > >
> > > > Try a run, append a package to IMAGE_PREINSTALL, build again
> > > >
> > > > I kind of bet that BUILD_ID will be wrong and not show your new
> > > > commit or "dirty"
> > >
> > > Yes, It is wrong.
> > >
> > > Since we definitely know that we are bringing in a variable
> > > that changes everytime when there is a change to the source
> > > code, we could very well do do_prepare_build[nostamp]="1".
> > >
> > > That with some changes should solve this problem.
> >
> > It will mean that every change will trigger a full reinstall of the
> > image, many changes do that, but it sounds bad.
> >
> > And the false-sharing between images and multiconfigs still remains.
> >
> > Try two images in one layer with differing DESCRIPTIONS and see what
> > happens. That would be the simple case without even thinking mc
>
> So basically os-release varies based on the image built. With a
> single package like this, it is no longer possible. At anypoint we
> could have only one version of the package.
>
> Then, again, it makes me wonder if os-release is an apt place for such
> information.
> We lose updatability with the other approach. We definitely leave one
> file (/etc/os-release or /usr/lib/os-release)
> outdated on a dist upgrade.

Exactly what i said earlier. We should use another file. And in case we
want to keep some information really in /etc/os-release we need to
write a hook to merge our bits in every single time apt owns it again.

Then we are back to having something like /etc/isar_info.
 

Henning

> Thanks,
> Vijai Kumar K
>
> >
> > Henning
> >
> > > Thanks,
> > > Vijai Kumar K
> > >
> > > >
> > > > > ROOTFS_POSTPROCESS_COMMAND =+ "image_postprocess_configure"
> > > > > image_postprocess_configure() {
> > > > > # Configure root filesystem
> > > > > @@ -45,14 +13,6 @@ image_postprocess_configure() {
> > > > > fi
> > > > > }
> > > > >
> > > > > -ROOTFS_POSTPROCESS_COMMAND =+ "image_postprocess_mark"
> > > > > -
> > > > > -image_postprocess_mark() {
> > > > > - BUILD_ID=$(get_build_id)
> > > > > - update_etc_os_release \
> > > > > - --build-id "${BUILD_ID}" --variant "${DESCRIPTION}"
> > > > > --version "${PV}" -}
> > > > > -
> > > > > ROOTFS_POSTPROCESS_COMMAND =+ "image_postprocess_machine_id"
> > > > > image_postprocess_machine_id() {
> > > > > # systemd(1) takes care of recreating the machine-id on
> > > > > first boot diff --git a/meta/classes/image.bbclass
> > > > > b/meta/classes/image.bbclass index eddc444..d849175 100644
> > > > > --- a/meta/classes/image.bbclass
> > > > > +++ b/meta/classes/image.bbclass
> > > > > @@ -49,9 +49,6 @@ SRC_URI += "${@ cfg_script(d) }"
> > > > >
> > > > > DEPENDS += "${IMAGE_INSTALL}"
> > > > >
> > > > > -ISAR_RELEASE_CMD_DEFAULT = "git -C ${LAYERDIR_core} describe
> > > > > --tags --dirty --match 'v[0-9].[0-9]*'" -ISAR_RELEASE_CMD ?=
> > > > > "${ISAR_RELEASE_CMD_DEFAULT}" -
> > > > > image_do_mounts() {
> > > > > sudo flock ${MOUNT_LOCKFILE} -c ' \
> > > > > mkdir -p "${BUILDROOT_DEPLOY}" "${BUILDROOT_ROOTFS}"
> > > > > "${BUILDROOT_WORK}" @@ -91,23 +88,6 @@ def get_rootfs_size(d):
> > > > >
> > > > > return base_size + rootfs_extra * 1024
> > > > >
> > > > > -# here we call a command that should describe your whole
> > > > > build system, -# this could be "git describe" or something
> > > > > similar. -# set ISAR_RELEASE_CMD to customize, or override
> > > > > do_mark_rootfs to do something -# completely different
> > > > > -get_build_id() {
> > > > > - if [ $(echo ${BBLAYERS} | wc -w) -ne 2 ] &&
> > > > > - [ "${ISAR_RELEASE_CMD}" =
> > > > > "${ISAR_RELEASE_CMD_DEFAULT}" ]; then
> > > > > - bbwarn "You are using external layers that will
> > > > > not be" \
> > > > > - "considered in the build_id. Consider
> > > > > changing" \
> > > > > - "ISAR_RELEASE_CMD."
> > > > > - fi
> > > > > - if ! ( ${ISAR_RELEASE_CMD} ) 2>/dev/null; then
> > > > > - bbwarn "\"${ISAR_RELEASE_CMD}\" failed,
> > > > > returning empty build_id."
> > > > > - echo ""
> > > > > - fi
> > > > > -}
> > > > > -
> > > > > python set_image_size () {
> > > > > rootfs_size = get_rootfs_size(d)
> > > > > d.setVar('ROOTFS_SIZE', str(rootfs_size))
> > > > > diff --git a/meta/recipes-core/base-files/base-files.bb
> > > > > b/meta/recipes-core/base-files/base-files.bb new file mode
> > > > > 100644 index 0000000..d250fc5
> > > > > --- /dev/null
> > > > > +++ b/meta/recipes-core/base-files/base-files.bb
> > > > > @@ -0,0 +1,6 @@
> > > > > +# This software is a part of ISAR.
> > > > > +# Copyright (c) Mentor, A Siemens Business, 2021
> > > > > +#
> > > > > +# SPDX-License-Identifier: MIT
> > > > > +
> > > > > +require base-files.inc
> > > > > diff --git a/meta/recipes-core/base-files/base-files.inc
> > > > > b/meta/recipes-core/base-files/base-files.inc new file mode
> > > > > 100644 index 0000000..68d0e3a
> > > > > --- /dev/null
> > > > > +++ b/meta/recipes-core/base-files/base-files.inc
> > > > > @@ -0,0 +1,55 @@
> > > > > +# This software is a part of ISAR.
> > > > > +# Copyright (c) Mentor, A Siemens Business, 2021
> > > > > +#
> > > > > +# SPDX-License-Identifier: MIT
> > > > > +
> > > > > +inherit dpkg
> > > > > +
> > > > > +SRC_URI = "apt://${PN}"
> > > > > +
> > > > > +S="${WORKDIR}/${PN}"
> > > > > +
> > > > > +MAINTAINER = "isar-users <isar-...@googlegroups.com>"
> > > > > +CHANGELOG_V = "<orig-version>+isar"
> > > >
> > > > Just one such package. We will need for for every single image
> > > > we build in the tree. There can be multiple, especially when
> > > > multiconfig comes into play, but even without.
> > > >
> > > > Think of the internal layer you just helped with for a release,
> > > > it builds the product and the debug variant, which differ in
> > > > their DESCRIPTION and must not share that package.
> > > >
> > > > I am afraid a package will not work. We would need a package per
> > > > image. And that package would need to rebuild every time the
> > > > BUILD_ID changes.
> > > >
> > > > But now you still have the problem that someone could install a
> > > > more recent "base-files" ... Might as well use preferences to
> > > > pin it forever, instead of forking it and giving it a number
> > > > that will hopefully never be smaller than the one from debian
> > > >
> > > > Henning
> > > >
> > > > > +ISAR_RELEASE_CMD_DEFAULT = "git -C ${LAYERDIR_core} describe
> > > > > --tags --dirty --match 'v[0-9].[0-9]*'" +ISAR_RELEASE_CMD ?=
> > > > > "${ISAR_RELEASE_CMD_DEFAULT}" +OS_RELEASE_VARIANT = "Isar
> > > > > target filesystem" +OS_RELEASE_VARIANT_VERSION = "1.0"
> > > > > +
> > > > > +# here we call a command that should describe your whole
> > > > > build system, +# this could be "git describe" or something
> > > > > similar. +# set ISAR_RELEASE_CMD to customize, or override
> > > > > do_mark_rootfs to do something +# completely different
> > > > > +get_build_id() {
> > > > > + if [ $(echo ${BBLAYERS} | wc -w) -ne 2 ] &&
> > > > > + [ "${ISAR_RELEASE_CMD}" =
> > > > > "${ISAR_RELEASE_CMD_DEFAULT}" ]; then
> > > > > + bbwarn "You are using external layers that will
> > > > > not be" \
> > > > > + "considered in the build_id. Consider
> > > > > changing" \
> > > > > + "ISAR_RELEASE_CMD."
> > > > > + fi
> > > > > + if ! ( ${ISAR_RELEASE_CMD} ) 2>/dev/null; then
> > > > > + bbwarn "\"${ISAR_RELEASE_CMD}\" failed, returning
> > > > > empty build_id."
> > > > > + echo ""
> > > > > + fi
> > > > > +}
> > > > > +
> > > > > +do_prepare_build() {
> > > > > + deb_add_changelog
> > > > > + OS_RELEASE_BUILD_ID=$(get_build_id)
> > > > > + if [ -n "${OS_RELEASE_BUILD_ID}" ]; then
> > > > > + sed -i '/^BUILD_ID=.*/d' '${S}/etc/os-release'
> > > > > + echo "BUILD_ID=\"${OS_RELEASE_BUILD_ID}\"" | \
> > > > > + tee -a '${S}/etc/os-release'
> > > > > + fi
> > > > > + if [ -n "${OS_RELEASE_VARIANT}" ]; then
> > > > > + sed -i '/^VARIANT=.*/d' '${S}/etc/os-release'
> > > > > + echo "VARIANT=\"${OS_RELEASE_VARIANT}\"" | \
> > > > > + tee -a '${S}/etc/os-release'
> > > > > + fi
> > > > > + if [ -n "${OS_RELEASE_VARIANT_VERSION}" ]; then
> > > > > + sed -i '/^VARIANT_VERSION=.*/d' '${S}/etc/os-release'
> > > > > + echo
> > > > > "VARIANT_VERSION=\"${OS_RELEASE_VARIANT_VERSION}\"" | \
> > > > > + tee -a '${S}/etc/os-release'
> > > > > + fi
> > > > > +}
> > > >
> > > > --
> > > > You received this message because you are subscribed to the
> > > > Google Groups "isar-users" group. To unsubscribe from this
> > > > group and stop receiving emails from it, send an email to
> > > > isar-users+...@googlegroups.com. To view this
> > > > discussion on the web visit
> > > > https://groups.google.com/d/msgid/isar-users/20210220092859.382eeb3a%40md1za8fc.ad001.siemens.net.
> > > >
> >

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