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# Copyright (C) 2016-2018 Iru Cai <mytbk920423@gmail.com>
# SPDX-License-Identifier: GPL-3.0-or-later
checksum_verify() {
local _hashtool _hashsum _cksum
if [ -n "$SHA512" ]; then
_hashtool=sha512sum
_hashsum=$SHA512
elif [ -n "$SHA256" ]; then
_hashtool=sha256sum
_hashsum=$SHA256
elif [ -n "$SHA1" ]; then
_hashtool=sha1sum
_hashsum=$SHA1
elif [ -n "$MD5" ]; then
_hashtool=md5sum
_hashsum=$MD5
else
fatalerror "Cannot find the SHA256, SHA1, or MD5 checksum of $ISOFILE"
fi
_cksum=$("$_hashtool" "$ISOPATH/$ISOFILE" | cut -d' ' -f1)
if [[ $_cksum == $_hashsum ]]; then
msg "$ISOFILE ok."
else
msg "$ISOFILE checksum bad!" && return 1
fi
}
# process_isoinfo <iso, e.g. mint/64/xfce>
# loads $DISTRONAME $ISONAME $ISOFILE $ISOURL
process_isoinfo() {
unset MD5 SHA1 SHA256 SHA512
_distrobase="distro/$(cut -d'/' -f1 <<< "$1")"
source "$_distrobase/distroinfo"
source "distro/$1/isoinfo"
ISOFILE="$(basename $ISOURL)"
}
process_distro() {
source "distro/$1/install.sh"
# FIXME
# As a workaround, now we set $ISOFILE before using this function.
# Maybe we have a better solution for this.
ISOMNT="/media/$ISOFILE"
}
gen_grubcfg() {
local entry allentries
allentries=("distro/$1/entry"*)
if [ ${#allentries[@]} -gt 1 ]; then
echo "submenu '$ISONAME' {"
fi
for entry in "${allentries[@]}"
do
UUID="$UUID" ISOFILE="$ISOFILE" ./mkgrubcfg.sh "$entry"
done
if [ ${#allentries[@]} -gt 1 ]; then
echo '}'
fi
}
gen_syslinux() {
local entry allentries count name
allentries=("distro/$1/entry"*)
name=$(echo $1|sed 's/\//_/g')
count=0
for entry in "${allentries[@]}"
do
UUID="$UUID" ISOFILE="$ISOFILE" LABEL="$name$count" \
./mksyslinux.sh "$entry"
count=$(($count+1))
done
}
download_iso() {
mkdir -p "$ISOPATH"
for url in ${mirrorlist[@]}
do
wget -c -O "$ISOPATH/$ISOFILE" "$url/$ISOURL"
if checksum_verify; then
return 0
else
# checksum bad, may be due to a bad partial download
# so remove the file and try again
rm -f "$ISOPATH/$ISOFILE"
wget -O "$ISOPATH/$ISOFILE" "$url/$ISOURL"
checksum_verify && return 0
rm -f "$ISOPATH/$ISOFILE" # then try next mirror
fi
done
fatalerror "Fail to download $ISOFILE!"
}
mount_iso() {
if findmnt "$ISOMNT" > /dev/null
then
umount_iso
fi
udevil mount "$ISOPATH/$ISOFILE" "$ISOMNT"
}
umount_iso() {
udevil umount "$ISOMNT"
}
getuuid() {
lsblk -n -o UUID "$1"
}
getdiskbypart() {
# util-linux may have bug when using -s --raw
# so it needs some work around
local _devlist
local _type
_devlist=($(lsblk -s --raw -o NAME -n "$1"))
for i in "${_devlist[@]}"
do
_type=$(lsblk -o TYPE -n "/dev/$i" | head -n1)
if [[ "$_type" == "disk" ]]; then
echo $i
fi
done
}
as-root() {
echo as-root "$*"
if [ "$UID" == 0 ]; then
"$@"
elif type -p sudo > /dev/null; then
sudo "$@"
elif type -p su > /dev/null; then
su -c "$*"
fi
}
syslinux_header() {
cat << EOF
UI menu.c32
MENU TITLE Live USB
MENU COLOR border 30;44 #40ffffff #a0000000 std
MENU COLOR title 1;36;44 #9033ccff #a0000000 std
MENU COLOR sel 7;37;40 #e0ffffff #20ffffff all
MENU COLOR unsel 37;44 #50ffffff #a0000000 std
MENU COLOR help 37;40 #c0ffffff #a0000000 std
MENU COLOR timeout_msg 37;40 #80ffffff #00000000 std
MENU COLOR timeout 1;37;40 #c0ffffff #00000000 std
MENU COLOR msg07 37;40 #90ffffff #a0000000 std
MENU COLOR tabmsg 31;40 #30ffffff #00000000 std
EOF
}
grubcfg_header() {
echo '# The live USB grub.cfg file'
if [ -z "$TXTMODE" ]; then
cat << 'EOF'
if [ ${grub_platform} == efi ]; then
insmod all_video
insmod font
if loadfont /grub/fonts/unicode.pf2; then
insmod gfxterm
set gfxmode=auto
set gfxpayload=keep
terminal_output gfxterm
fi
fi
EOF
fi
}
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