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# If you are curious why partman-auto is so slow, it is because
# update-all is slow
update_all () {
local dev num id size type fs path name partitions
for dev in $DEVICES/*; do
[ -d "$dev" ] || continue
cd $dev
partitions=''
open_dialog PARTITIONS
while { read_line num id size type fs path name; [ "$id" ]; }; do
partitions="$partitions $id"
done
close_dialog
for id in $partitions; do
update_partition $dev $id
done
done
}
autopartitioning_failed () {
db_fset partman-auto/autopartitioning_failed seen false
db_input critical partman-auto/autopartitioning_failed || true
db_go || true
update_all
exit 1
}
unnamed=0
decode_recipe () {
local ram line word min factor max fs -
unnamed=$(($unnamed + 1))
ram=$(grep ^Mem: /proc/meminfo | { read x y z; echo $y; }) # in bytes
ram=$(expr 0000000"$ram" : '0*\(..*\)......$') # convert to megabytes
name="Unnamed.${unnamed}"
scheme=''
line=''
for word in $(cat $1); do
case $word in
:)
name=$line
line=''
;;
::)
db_metaget $line description
if [ "$RET" ]; then
name=$RET
else
name="Unnamed.${unnamed}"
fi
line=''
;;
.)
# we correct errors in order not to crash parted_server
set -- $line
if expr "$1" : '[0-9][0-9]*$' >/dev/null; then
min=$1
elif expr "$1" : '[0-9][0-9]*%$' >/dev/null; then
min=$(($ram * ${1%?} / 100))
else # error
min=2200000000 # there is no so big storage device jet
fi
if expr "$2" : '[0-9][0-9]*%$' >/dev/null; then
factor=$(($ram * ${2%?} / 100))
elif expr "$2" : '[0-9][0-9]*$' >/dev/null; then
factor=$2
else # error
factor=$min # do not enlarge the partition
fi
if [ "$factor" -lt "$min" ]; then
factor="$min"
fi
if expr "$3" : '[0-9][0-9]*$' >/dev/null; then
max=$3
elif expr "$3" : '[0-9][0-9]*%$' >/dev/null; then
max=$(($ram * ${3%?} / 100))
else # error
max=$min # do not enlarge the partition
fi
if [ "$max" -lt "$min" ]; then
max="$min"
fi
case "$4" in # allow only valid file systems
ext2|ext3|xfs|reiserfs|linux-swap|fat16|fat32)
fs="$4"
;;
*)
fs=ext2
;;
esac
shift; shift; shift; shift
line="$min $factor $max $fs $*"
if [ "$scheme" ]; then
scheme="${scheme}${NL}${line}"
else
scheme="$line"
fi
line=''
;;
*)
if [ "$line" ]; then
line="$line $word"
else
line="$word"
fi
esac
done
}
foreach_partition () {
local - doing IFS partition former last
doing=$1
IFS="$NL"
former=''
for partition in $scheme; do
restore_ifs
if [ "$former" ]; then
set -- $former
last=no
eval "$doing"
fi
former="$partition"
done
if [ "$former" ]; then
set -- $former
last=yes
eval "$doing"
fi
}
min_size () {
local size
size=0
foreach_partition '
size=$(($size + $1))'
echo $size
}
factor_sum () {
local factor
factor=0
foreach_partition '
factor=$(($factor + $2))'
echo $factor
}
partition_before () {
local num id size type fs path name result found
result=''
found=no
open_dialog PARTITIONS
while { read_line num id size type fs path name; [ "$id" ]; }; do
if [ "$id" = "$1" ]; then
found=yes
fi
if [ $found = no ]; then
result=$id
fi
done
close_dialog
echo $result
}
partition_after () {
local num id size type fs path name result found
result=''
found=no
open_dialog PARTITIONS
while { read_line num id size type fs path name; [ "$id" ]; }; do
if [ $found = yes -a -z "$result" ]; then
result=$id
fi
if [ "$id" = "$1" ]; then
found=yes
fi
done
close_dialog
echo $result
}
pull_primary () {
primary=''
logical=''
foreach_partition '
if
[ -z "$primary" ] \
&& echo $* | grep '\''\$primary{'\'' >/dev/null
then
primary="$*"
else
if [ -z "$logical" ]; then
logical="$*"
else
logical="${logical}${NL}$*"
fi
fi'
}
setup_partition () {
local id flags file line
id=$1; shift
while [ "$1" ]; do
case "$1" in
\$bootable{)
while [ "$1" != '}' -a "$1" ]; do
shift
done
open_dialog GET_FLAGS $id
flags=$(read_paragraph)
close_dialog
open_dialog SET_FLAGS $id
write_line "$flags"
write_line boot
write_line NO_MORE
close_dialog
;;
\$*{)
while [ "$1" != '}' -a "$1" ]; do
shift
done
;;
*{)
file=${1%?}
[ -d $id ] || mkdir $id
>$id/$file
shift
line=''
while [ "$1" != '}' -a "$1" ]; do
if [ "$1" = ';' ]; then
echo "$line" >>$id/$file
else
if [ "$line" ]; then
line="$line $1"
else
line="$1"
fi
fi
shift
done
echo "$line" >>$id/$file
esac
shift
done
return 0
}
choose_recipe () {
local recipes archdetect arch sub free_size choices min_size
# recipes=$(
# if [ -x /bin/archdetect ]; then
# archdetect=$(archdetect)
# else
# archdetect=unknown/generic
# fi
# arch=${archdetect%/*}
# sub=${archdetect#*/}
# for recipe in \
# /lib/partman/recipes/* \
# /lib/partman/recipes-$arch/* \
# /lib/partman/recipes-$arch-$sub/*
# do
# [ -f $recipe ] || continue
# echo ${recipe##*/} ${recipe#/lib/partman/recipes} $recipe
# done |
# sort | {
# oldname=''
# while read name recipe; do
# if [ "$name" != "$oldname" ]; then
# echo $recipe
# oldname="$name"
# fi
# done
# }
# )
if [ -x /bin/archdetect ]; then
archdetect=$(archdetect)
else
archdetect=unknown/generic
fi
arch=${archdetect%/*}
sub=${archdetect#*/}
for recipedir in \
/lib/partman/recipes-$arch-$sub \
/lib/partman/recipes-$arch \
/lib/partman/recipes
do
if [ -d $recipedir ]; then
break
fi
done
free_size=$1
choices=''
first_recipe=no
for recipe in $recipedir/*; do
[ -f "$recipe" ] || continue
decode_recipe $recipe
if [ $(min_size) -le $free_size ]; then
choices="${choices}${recipe}${TAB}${name}${NL}"
if [ no = "$first_recipe" ]; then
first_recipe="$recipe"
fi
fi
done
if [ -z "$choices" ]; then
db_input critical partman-auto/no_recipe || true
db_go || true # TODO handle backup right
return 1
fi
# db_metaget partman-auto/text/expert_recipe description
# choices="${choices}expert${TAB}${RET}"
db_fset partman-auto/choose_recipe seen false
debconf_select high partman-auto/choose_recipe "$choices" "$first_recipe"
if [ "$?" = 255 ]; then
exit 0
fi
if [ "$RET" = expert ]; then
db_fset partman-auto/expert_recipe seen false
db_input critical partman-auto/expert_recipe || true
if ! db_go; then
exit 1
fi
fi
recipe="$RET"
}
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