board/qemu: Generate sdcard.img with post-image

In order to test AimeeOS A/B filesystem updates, we need a full disk
image just like the Raspberry Pi variant has.

board/qemu/post-image.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+set -e
+
+BOARD_DIR=$(dirname "$0")
+GRUBENV="${BINARIES_DIR}"/efi-part/EFI/BOOT/grubenv
+
+genimage_tmp=$(mktemp -d)
+trap 'rm -rf "${genimage_tmp}"' EXIT
+
+mkdir -p  "${genimage_tmp}"/rootfs "${genimage_tmp}"/tmp
+
+grub-editenv "${GRUBENV}" set default=0
+grub-editenv "${GRUBENV}" set timeout=3
+
+cd "${BINARIES_DIR}"
+genimage \
+	--rootpath "${genimage_tmp}/rootfs" \
+	--tmppath "${genimage_tmp}/tmp" \
+	--inputpath "${BINARIES_DIR}" \
+	--outputpath "${BINARIES_DIR}" \
+	--config "${BOARD_DIR}"/genimage.cfg

ci/Jenkinsfile

@@ -53,8 +53,12 @@ pipeline {
                         archiveArtifacts('.config')
                     }
                     dir('_build/images') {
+                        sh 'zstd -f firmware.img'
+                        sh 'zstd -f sdcard.img'
                         archiveArtifacts([
+                            'firmware.img.zst',
                             'rootfs.squashfs',
+                            'sdcard.img.zst',
                         ].join(','))
                     }
                 }

configs/aimeeos_qemu_aarch64_defconfig

@@ -3,6 +3,7 @@ BR2_TOOLCHAIN_BUILDROOT_VENDOR="aimeeos"
 BR2_GLOBAL_PATCH_DIR="board/qemu/patches"
 BR2_DOWNLOAD_FORCE_CHECK_HASHES=y
 BR2_INIT_SYSTEMD=y
+BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_AIMEEOS_PATH)/board/qemu/post-image.sh"
 # BR2_INIT_SYSTEMD_POPULATE_TMPFILES is not set
 # BR2_TARGET_ENABLE_ROOT_LOGIN is not set
 # BR2_TARGET_GENERIC_GETTY is not set