forked from ungleich-public/cdist
100 lines
3.0 KiB
Plaintext
100 lines
3.0 KiB
Plaintext
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#!/bin/sh
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#
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# 2011 Steven Armstrong (steven-cdist at armstrong.cc)
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#
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# This file is part of cdist.
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#
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# cdist is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# cdist is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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die() {
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echo "[__partition_msdos_apply] $@" >&2
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exit 1
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}
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debug() {
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echo "[__partition_msdos_apply] $@" >&2
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}
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# Convert a size specifier 1G 100M or 50% into the corresponding numeric MB.
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size_to_mb() {
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local size=$1
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local available_size="$2"
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local number_suffix="$(echo ${size} | sed -e 's:\.[0-9]\+::' -e 's:\([0-9]\+\)\([MmGg%]\)[Bb]\?:\1|\2:')"
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local number="$(echo ${number_suffix} | cut -d '|' -f1)"
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local suffix="$(echo ${number_suffix} | cut -d '|' -f2)"
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case "$suffix" in
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M|m)
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size="$number"
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;;
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G|g)
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size="$(( $number * 1024 ))"
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;;
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%)
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size="$(( $available_size * $number / 100 ))"
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;;
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*)
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size="-1"
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esac
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echo "$size"
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}
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# include function library for use on target
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cat "$__type/files/lib.sh"
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partitions="$__object/explorer/partitions"
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objects=$(find "$__global/object/__partition_msdos" -path "*.cdist")
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current_device=""
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available_size=
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primary_count=0
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for object in $objects; do
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device="$(cat "$object/parameter/device")"
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if [ "$current_device" != "$device" ];
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echo "create_disklabel $device"
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current_device="$device"
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device_name=$(echo ${device} | sed -e 's:^/dev/::;s:/:\\/:g')
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available_size=$(( $(awk "/${device_name}\$/ { print $3; }" "$partitions") / 1024))
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# make sure we don't go past the end of the drive
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available_size=$((device_size - 2))
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primary_count=0
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fi
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type="$(cat "$object/parameter/type")"
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partition="$(cat "$object/parameter/partition")"
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minor="$(cat "$object/parameter/minor")"
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if [ "${minor}" -lt "5" ]; then
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primary_count=$(( $primary_count + 1 ))
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fi
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bootable="$(cat "$object/parameter/bootable")"
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size="$(cat "$object/parameter/size")"
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if [ "$size" = "+" ]; then
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# use rest of device
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partition_size=""
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available_size=0
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else
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partition_size=$(size_to_mb "$size" "$available_size")
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available_size="$(( $available_size - $partition_size ))"
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fi
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[ "$partition_size" = "-1" ] && die "could not translate size '$size' to a usable value"
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debug "primary_count=$primary_count"
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debug "available_size=$available_size"
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debug "current_device=$current_device"
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echo "create_partition $device $minor $partition_size $type $primary_count"
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done
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