libisoburn/releng/releng_build_isojigdo

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#!/bin/bash
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set -e
# required
XOR=""
DIR=""
IMG=""
# optional
ISOLINUX_BIN=""
BOOT_CAT=""
CONFFILE=$HOME/releng_build_isojigdo.conf
CLEAN=0
print_help() {
cat << HLP
Usage:
$0 -help
# using a config file ${CONFFILE}
$0 -rc [-clean]
config file content:
XOR=/path/to/xorriso
DIR=/path/to/input_dir
IMG=/path/to/out_image
ISOLINUX_BIN=/path/to/isolinux.bin
BOOT_CAT=/path/to/boot.cat
# without using a config file
$0 xorriso_cmd IN_dir OUT_image [IN_isolinux] [IN_bootcat] [-clean]
HLP
}
# help
if [ ! "${1}" -o "${1}" == "-help" ]; then print_help && exit 0; fi
# config file
if [ "${1}" == "-rc" ]; then
if [ -e ${CONFFILE} ]; then . ${CONFFILE}
else echo -e "$0: Config file ${CONFFILE} not found.\n" && exit 1
fi
if [ "${2}" == "-clean" ]; then CLEAN=1; fi
# command line args
elif [ "${3}" ]; then
XOR="${1}"
DIR="${2}"
IMG="${3}"
if [ "{4}" ]; then
ISOLINUX_BIN="${4}"
if [ "{5}" ]; then BOOT_CAT="${5}"; fi
if [ "${4}" == "-clean" -o "${5}" == "-clean" -o "${6}" == "-clean" ]; then CLEAN=1; fi
fi
# the rest
else
print_help && exit 0
fi
RES="${IMG}.iso ${IMG}.new ${IMG}.md5 ${IMG}.jigdo ${IMG}.template"
############################################################
main() {
# remove cruft from previous runs
# rm -f ${RES}
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# grab an MBR
# dd if=some.iso bs=1K count=32 of=somembr.sysarea
# create FAT partition
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# /sbin/mkfs.msdos -n Bla -C fatpart.fat 8192
# create MD5 list in base64 format
if which jigdo-gen-md5-list >/dev/null 2>&1; then
printf "$0: Creating MD5 list in hex format..."
jigdo-gen-md5-list ${DIR} > ${IMG}.md5
printf "Done.\n"
else
printf "$0: Not found: jigdo-gen-md5-list. Install jigit.\n"
exit 1
fi
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# build the command - general section
CMD="${XOR} \
-as mkisofs \
-o ${IMG}.iso \
-R \
-V ISOJIGDO \
-partition_offset 16 \
-J -joliet-long \
"
# boot section TODO
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#if [ "${5}" -a "${6}" ]; then
#CMD+=\
# -b boot/isolinux/isolinux.bin \ # $5
# -c boot/boot.cat \ # $6
# -no-emul-boot -boot-load-size 4 -boot-info-table \
# -isohybrid-mbr somembr.sysarea \ # TODO: figure out where to grab one
# -partition_offset 16 \
# -append_partition 2 0x01 fatpart.fat \
#fi
# jigdo section
CMD+="\
-jigdo-template-compress gzip \
-checksum_algorithm_iso md5,sha1,sha256,sha512 \
-checksum_algorithm_template md5,sha1,sha256,sha512 \
-jigdo-jigdo ${IMG}.jigdo \
-jigdo-template ${IMG}.template \
-jigdo-map Debian=${DIR} \
-md5-list ${IMG}.md5 \
-jigdo-min-file-size 1024 \
"
CMD+="${DIR}"
# run it
echo -e "$0: Creating ISO and jigdo representations:\n$CMD\n"
${CMD}
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# create another one from jigdo files
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jigit-mkimage \
-t ${IMG}.template \
-j ${IMG}.jigdo \
-m Debian=${DIR} \
-o ${IMG}.new
# diff'em
diff ${IMG}.iso ${IMG}.new
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# sort out the cruft
if [ ${CLEAN} -eq 1 ]; then
rm -f ${RES}
printf "removed: %s\n" ${RES}
else
printf "left: %s\n" ${RES}
fi
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# last hints
printf "$0: Checks remained to be done:\n"
printf " * resulting ISO image ${IMG} boots USB stick and/or Optical media.\n"
printf " * appended FAT partition is mountable.\n"
printf " * fdisk -lu ${IMG}\n"
}
#
main