[PATCH] image: Fix variable dependency chain

["'Jan Kiszka' via isar-users" <isar-users@googlegroups.com>]

From: Jan Kiszka <jan.kiszka@siemens.com>

As ROOTFS_PACKAGES is constructed from IMAGE_INSTALL or SDK_INSTALL via
an inline python function, we need to help its consumer
do_rootfs_install with maintaining its variable dependency chain.

The issue was easy to trigger by rebuilding an image after switching
between different distro kernels.

Instead of adding another do_rootfs_install[vardeps] rule to users of
rootfs, introduce the ROOTFS_VARDEPS variable which can be defined by
class users according to their ROOTFS_PACKAGES construction.

Fixes: c63bb31b6f3a ("add multiarch support")
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 meta/classes/image.bbclass  | 1 +
 meta/classes/rootfs.bbclass | 3 ++-
 meta/classes/sdk.bbclass    | 5 +----
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index 1fa71c17..d11dbee5 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -101,6 +101,7 @@ ROOTFS_FEATURES += "\
     populate-systemd-preset \
     "
 ROOTFS_PACKAGES += "${IMAGE_PREINSTALL} ${@isar_multiarch_packages('IMAGE_INSTALL', d)}"
+ROOTFS_VARDEPS += "IMAGE_INSTALL"
 ROOTFS_MANIFEST_DEPLOY_DIR ?= "${DEPLOY_DIR_IMAGE}"
 ROOTFS_DPKGSTATUS_DEPLOY_DIR ?= "${DEPLOY_DIR_IMAGE}"
 ROOTFS_PACKAGE_SUFFIX ?= "${PN}-${DISTRO}-${MACHINE}"
diff --git a/meta/classes/rootfs.bbclass b/meta/classes/rootfs.bbclass
index e1179e61..748ed034 100644
--- a/meta/classes/rootfs.bbclass
+++ b/meta/classes/rootfs.bbclass
@@ -18,6 +18,7 @@ def initramfs_generator_cmdline(d):
     return "update-initramfs -u -v -k \"$kernel_version\""
 
 ROOTFS_PACKAGES ?= ""
+ROOTFS_VARDEPS ?= ""
 ROOTFS_INITRAMFS_GENERATOR_CMD = "${@ d.getVar('ROOTFS_INITRAMFS_GENERATOR_CMDLINE').split()[0]}"
 ROOTFS_INITRAMFS_GENERATOR_CMDLINE = "${@ initramfs_generator_cmdline(d)}"
 ROOTFS_BASE_DISTRO ?= "${BASE_DISTRO}"
@@ -384,7 +385,7 @@ rootfs_clear_initrd_symlinks() {
 }
 
 do_rootfs_install[root_cleandirs] = "${ROOTFSDIR}"
-do_rootfs_install[vardeps] += "${ROOTFS_CONFIGURE_COMMAND} ${ROOTFS_INSTALL_COMMAND}"
+do_rootfs_install[vardeps] += "${ROOTFS_CONFIGURE_COMMAND} ${ROOTFS_INSTALL_COMMAND} ${ROOTFS_VARDEPS}"
 do_rootfs_install[vardepsexclude] += "IMAGE_ROOTFS"
 do_rootfs_install[depends] = "bootstrap-${@'target' if d.getVar('ROOTFS_ARCH') == d.getVar('DISTRO_ARCH') else 'host'}:do_build"
 do_rootfs_install[recrdeptask] = "do_deploy_deb"
diff --git a/meta/classes/sdk.bbclass b/meta/classes/sdk.bbclass
index 46436d97..5933b52a 100644
--- a/meta/classes/sdk.bbclass
+++ b/meta/classes/sdk.bbclass
@@ -55,6 +55,7 @@ def get_rootfs_distro(d):
 ROOTFS_ARCH:class-sdk = "${HOST_ARCH}"
 ROOTFS_DISTRO:class-sdk = "${@get_rootfs_distro(d)}"
 ROOTFS_PACKAGES:class-sdk = "sdk-files ${SDK_TOOLCHAIN} ${SDK_PREINSTALL} ${@isar_multiarch_packages('SDK_INSTALL', d)}"
+ROOTFS_VARDEPS:class-sdk = "SDK_INSTALL SDK_INCLUDE_ISAR_APT"
 ROOTFS_FEATURES:append:class-sdk = " clean-package-cache generate-manifest export-dpkg-status"
 ROOTFS_MANIFEST_DEPLOY_DIR:class-sdk = "${DEPLOY_DIR_SDKCHROOT}"
 ROOTFS_DPKGSTATUS_DEPLOY_DIR:class-sdk = "${DEPLOY_DIR_SDKCHROOT}"
@@ -70,10 +71,6 @@ SDKROOTFSDEPENDS = ""
 SDKROOTFSDEPENDS:class-sdk = "${BPN}:do_rootfs"
 do_rootfs_install[depends] += "${SDKROOTFSDEPENDS}"
 
-SDKROOTFSVARDEPS = ""
-SDKROOTFSVARDEPS:class-sdk = "SDK_INCLUDE_ISAR_APT"
-do_rootfs_install[vardeps] += "${SDKROOTFSVARDEPS}"
-
 ROOTFS_POSTPROCESS_COMMAND:remove = "${@'rootfs_cleanup_isar_apt' if bb.utils.to_boolean(d.getVar('SDK_INCLUDE_ISAR_APT')) else ''}"
 
 # additional SDK steps
-- 
2.51.0

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