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#!/bin/sh
# create files in the same directory as this script
cd "$(dirname "$0")"
set_state () {
filename="$1"
condition="$2"
if [ "$condition" -eq 0 ] ; then
# echo "$filename = TRUE" >&2
if ! [ -e "$filename" ] ; then
touch "$filename"
fi
else
# echo "$filename = FALSE" >&2
rm -f "$filename"
fi
}
# container image (initialized here, updated in makefile)
$CTR image exists "$CTR_IMG_TAG" 1> /dev/null 2> /dev/null
set_state container_img $?
# check if all the submodules are initialized
SUBMODULES_OK=0
MODULES="$(git config \
--file "$(git rev-parse --show-toplevel)/.gitmodules" \
--name-only --get-regexp path |\
sed -e 's/^submodule\./modules\//' -e 's/\.path$/\/HEAD/')"
for git_module in $MODULES ; do
git rev-parse "$git_module" 1> /dev/null 2> /dev/null && continue
echo "$git_module is the culprit" >&2
SUBMODULES_OK=1
done
set_state submodules $SUBMODULES_OK
SDCARD_PART_OK=1
SDCARD_FMT_OK=1
# if no explicit SDCARD_DISK is set, guess which device is the sd card by
# checking if it is removable AND has a size of approx. 8GB
if [ -z "$SDCARD_DISK" ] ; then
SDCARD_DISK="$(lsblk --noheadings --bytes --list \
--output PATH,SIZE,TYPE,RM,NAME | awk '
$3 != "disk" { next }
$2 < 7900000000 { next }
$2 > 8000000000 { next }
($4 != 1) && (match($5, /^mmcblk/) == 0) { next }
{ print $1 }' | head -n1)"
fi
if [ -n "$SDCARD_DISK" ] ; then
# check if the sd card is partitioned correctly if no partition path
# variables are set
if [ -z "$SDCARD_PART_BOOT" ] || [ -z "$SDCARD_PART_ROOTFS" ] ; then
PARTS="$(lsblk "$SDCARD_DISK" --bytes --noheadings \
--output PATH,SIZE,TYPE,PTTYPE,FSTYPE,LABEL,PARTFLAGS \
2> /dev/null)"
# check if the disk is partitioned correctly
echo "$PARTS" | awk '
$3 == "part" { parts += 1 }
NR == 1 { if ($4 != "dos") exit(1) }
NR == 2 { if ($2 != 64 * 2^20) exit(1) }
END { if (parts != 2) exit(1) }' && SDCARD_PART_OK=0
if [ $? -eq 0 ] ; then
SDCARD_PART_BOOT="$(echo "$PARTS" | awk 'NR == 2 { print $1 }')"
SDCARD_PART_ROOTFS="$(echo "$PARTS" | awk 'NR == 3 { print $1 }')"
# check if the disk is formatted correctly
echo "$PARTS" | awk '
NR == 2 {
if ($5 != "vfat") exit(1)
if ($6 != "BOOT") exit(1)
if ($7 != "0x80") exit(1)
}
NR == 3 {
if ($5 != "ext4") exit(1)
if ($6 != "ROOTFS") exit(1)
}' && SDCARD_FMT_OK=0
fi
fi
fi
set_state sdcard_part $SDCARD_PART_OK
set_state sdcard_fmt $SDCARD_FMT_OK
cat << EOF
\$(eval SDCARD_DISK := $SDCARD_DISK)
\$(eval SDCARD_PART_BOOT := $SDCARD_PART_BOOT)
\$(eval SDCARD_PART_ROOTFS := $SDCARD_PART_ROOTFS)
\$(eval export)
EOF
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