-
Notifications
You must be signed in to change notification settings - Fork 10
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge branch 'new-version' into 'develop'
New version See merge request MXcore-Tool/resize-image!7
- Loading branch information
Showing
4 changed files
with
201 additions
and
179 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
|
@@ -9,20 +9,12 @@ | |
# Authors: | ||
# 2017 Zack YL Shih <[email protected]> | ||
# 2018 Fero JD Zhou <[email protected]> | ||
# 2018 Ken CJ Chou <[email protected]> | ||
# 2019 Ken CJ Chou <[email protected]> | ||
# | ||
|
||
set -e | ||
|
||
VERSION=1.2.0 | ||
|
||
usage() { | ||
echo -e "Usage: ${0} <image_file> <partition1_options> [<partition2_options> ...]" | ||
echo -e "" | ||
echo -e "\tPartition options:" | ||
echo -e "" | ||
echo -e "\tExamples:" | ||
} | ||
VERSION=1.3.0 | ||
|
||
usage() { | ||
echo -e "Usage:" | ||
|
@@ -100,6 +92,56 @@ is_valid_fs_type() { | |
return 1 | ||
} | ||
|
||
get_value() { | ||
local tmp | ||
tmp="$(echo "${1}" | grep "^${2}=")" | ||
echo "${tmp##*=}" | ||
return 0 | ||
} | ||
|
||
get_image_info() { | ||
local imgfile=${1} | ||
local fdisk_l_output sec_size num_part part_info | ||
local line count tmp | ||
|
||
echo "IMAGE_FILE=${imgfile}" | ||
echo "IMAGE_FILENAME=${imgfile##*/}" | ||
|
||
fdisk_l_output="$(fdisk -l ${imgfile})" | ||
|
||
# get sector size | ||
sec_size="$(echo "${fdisk_l_output}" | grep "^Units:")" | ||
sec_size="${sec_size##*= }" | ||
sec_size="${sec_size%% bytes}" | ||
echo "IMAGE_SECTOR_SIZE=${sec_size}" | ||
|
||
# get partition information | ||
part_info="$(echo "${fdisk_l_output}" | grep "^${imgfile}[0-9]")" | ||
num_part=$(echo "${part_info}" | wc -l) | ||
echo "IMAGE_NUM_OF_PARTITIONS=${num_part}" | ||
|
||
count=0 | ||
while read -r line; do | ||
count=$((count + 1)) | ||
# bootflag is set if the line contains '*' | ||
if echo "${line}" | grep -q "*"; then | ||
line="$(echo "${line}" | sed 's/*//')" | ||
echo "IMAGE_P${count}_BOOTFLAG=y" | ||
else | ||
echo "IMAGE_P${count}_BOOTFLAG=n" | ||
fi | ||
tmp="$(echo "${line}" | awk '{print $1}')" | ||
echo "IMAGE_P${count}_NUMBER=${tmp##*${imgfile}}" | ||
tmp="$(echo "${line}" | awk '{print $2}')" | ||
echo "IMAGE_P${count}_OFFSET=$((tmp * sec_size))" | ||
tmp="$(echo "${line}" | awk '{print $4}')" | ||
echo "IMAGE_P${count}_SIZE=$((tmp * sec_size))" | ||
tmp="$(echo "${line}" | awk '{print $6}')" | ||
echo "IMAGE_P${count}_FSTYPE=${tmp}" | ||
done <<< "${part_info}" | ||
return 0 | ||
} | ||
|
||
extract_information() { | ||
local num_of_partitions | ||
local img_size=0 | ||
|
@@ -163,99 +205,70 @@ extract_information() { | |
done | ||
fdisk_cmd="${fdisk_cmd}w\n" | ||
|
||
echo "Num_of_Partitions: ${num_of_partitions}" | ||
echo "Image_Size: ${img_size}" | ||
echo "Fdisk_Command: ${fdisk_cmd}" | ||
return 0 | ||
} | ||
|
||
random_minor_number() { | ||
echo "$((100 + RANDOM % 801))" | ||
echo "Num_of_Partitions=${num_of_partitions}" | ||
echo "Image_Size=${img_size}" | ||
echo "Fdisk_Command=${fdisk_cmd}" | ||
return 0 | ||
} | ||
|
||
format_partitions() { | ||
local image=${1} | ||
local lodev_minor | ||
local loopdev | ||
local part_info | ||
local part_count | ||
local img=${1} | ||
local img_info i n_part | ||
|
||
shift 1 | ||
part_info="$(fdisk -l "${image}" | grep "^${image}" | sed 's/*//')" | ||
part_count="$(echo "$part_info" | wc -l)" | ||
|
||
lodev_minor=$(random_minor_number) | ||
loopdev=/dev/loopimg${lodev_minor} | ||
while [ -e "${loopdev}" ]; do | ||
lodev_minor=$(random_minor_number) | ||
loopdev=/dev/loopimg${lodev_minor} | ||
done | ||
img_info="$(get_image_info "${img}")" | ||
|
||
mknod ${loopdev} b 7 ${lodev_minor}0 | ||
losetup ${loopdev} ${image} | ||
|
||
for part in $(seq 1 ${part_count}); do | ||
n_part=$(get_value "${img_info}" "IMAGE_NUM_OF_PARTITIONS") | ||
for i in $(seq 1 ${n_part}); do | ||
# "<part_no>,<part_size>,<boot_flag>,<part_type>,<fs_type>" | ||
local fs_type="$(echo "${!part}" | awk -F, '{print $5}')" | ||
local part_name=${image}${part} | ||
local part_dev=${loopdev}p${part} | ||
local part_minor=${lodev_minor}${part} | ||
|
||
local pstart=$(echo "${part_info}" | grep "${part_name}" | awk '{print $2}') | ||
local pend=$(echo "${part_info}" | grep "${part_name}" | awk '{print $3}') | ||
local offset=$((pstart * 512)) | ||
local size=$(( pend * 512 - pstart * 512 + 512)) | ||
|
||
mknod "${part_dev}" b 7 ${part_minor} | ||
losetup -o ${offset} --sizelimit ${size} ${part_dev} ${loopdev} | ||
|
||
# For fs_type is raw, no need to perform formation | ||
if [ "${fs_type}" != "raw" ]; then | ||
if [ ${part} -eq ${part_count} ]; then | ||
mkfs -t ${fs_type} -J size=8 ${part_dev} | ||
else | ||
mkfs -t ${fs_type} ${part_dev} | ||
fi | ||
local fs_type="$(echo "${!i}" | awk -F, '{print $5}')" | ||
local p_offset=$(get_value "${img_info}" "IMAGE_P${i}_OFFSET") | ||
local p_size=$(get_value "${img_info}" "IMAGE_P${i}_SIZE") | ||
local loopdev | ||
|
||
loopdev="$(losetup -f)" | ||
losetup -o ${p_offset} --sizelimit ${p_size} ${loopdev} ${img} | ||
|
||
# Perform formation for different fs_type | ||
# vfat: format | ||
# ext4: format with journal | ||
# raw: do nothing | ||
if [ "${fs_type}" == "ext4" ]; then | ||
mkfs -t ${fs_type} -J size=8 ${loopdev} >/dev/null 2>&1 | ||
elif [ "${fs_type}" == "vfat" ]; then | ||
mkfs -t ${fs_type} ${loopdev} >/dev/null | ||
fi | ||
|
||
losetup -d ${part_dev} | ||
rm -f ${part_dev} | ||
done | ||
|
||
losetup -d ${loopdev} | ||
rm -f ${loopdev} | ||
|
||
for i in $(seq 0 ${part_count}); do | ||
rm -f /dev/loop${lodev_minor}${i} | ||
losetup -d ${loopdev} | ||
done | ||
return 0 | ||
} | ||
|
||
main() { | ||
local image=${1} | ||
local p_info | ||
local num_of_partitions | ||
local img_size | ||
local fdisk_cmd | ||
local extracted_info img_size fdisk_cmd | ||
|
||
if [ "${image}" == "-v" ] || [ "${image}" == "--version" ]; then | ||
echo "${VERSION}" | ||
return 0 | ||
fi | ||
shift 1 | ||
|
||
if [ -f ${image} ]; then | ||
echo "Error: file \"${image}\" already exist" >&2 | ||
return 1 | ||
fi | ||
|
||
log_msg "Extract information from options" | ||
p_info="$(extract_information "$@")" | ||
num_of_partitions="$(echo "${p_info}" | grep "^Num_of_Partitions:" | awk '{print $2}')" | ||
img_size="$(echo "${p_info}" | grep "^Image_Size:" | awk '{print $2}')" | ||
fdisk_cmd="$(echo "${p_info}" | grep "^Fdisk_Command:" | awk '{print $2}')" | ||
extracted_info="$(extract_information "$@")" | ||
img_size="$(get_value "${extracted_info}" "Image_Size")" | ||
fdisk_cmd="$(get_value "${extracted_info}" "Fdisk_Command")" | ||
|
||
log_msg "Generating image file" | ||
dd if=/dev/zero of=${image} bs=1M count=${img_size} | ||
truncate -s $((img_size * 1024 * 1024)) ${image} | ||
|
||
log_msg "Creating partitions" | ||
echo -ne "${fdisk_cmd}" | fdisk "${image}" | ||
echo -ne "${fdisk_cmd}" | fdisk "${image}" >/dev/null | ||
|
||
log_msg "Formating partitions" | ||
format_partitions "${image}" "$@" | ||
|
Oops, something went wrong.