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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 $ISOFILE"
fi
_cksum=$("$_hashtool" "isofiles/$ISOFILE" | cut -d' ' -f1)
if [[ $_cksum == $_hashsum ]]; then
msg "$ISOFILE ok."
else
msg "$ISOFILE checksum bad!" && return 1
fi
}
process_isoinfo() {
unset MD5 SHA1 SHA256 SHA512
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
for entry in "distro/$1/entry"*
do
UUID="$UUID" ISOFILE="$ISOFILE" ./mkgrubcfg.sh "$entry"
done
}
download_iso() {
mkdir -p isofiles
for url in ${mirrorlist[@]}
do
wget -c -O "isofiles/$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 "isofiles/$ISOFILE"
wget -O "isofiles/$ISOFILE" "$url/$ISOURL"
checksum_verify && return 0
rm -f "isofiles/$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 "isofiles/$ISOFILE" "$ISOMNT"
}
umount_iso() {
udevil umount "$ISOMNT"
}
getuuid() {
lsblk -n -o UUID "$1"
}
as-root() {
if [ "$UID" == 0 ]; then
"$@"
elif type -p sudo > /dev/null; then
sudo "$@"
elif type -p su > /dev/null; then
su -c "$*"
fi
}
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