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source "$(dirname "${BASH_SOURCE[0]}")/rebash/core.sh"
core.import logging
build_clean_qemu_nbd() {
# removes qemu-nbd.
#
rm --recursive --force "$1/*"
}
build_compile_qemu_nbd() {
# Downloads and compiles qemu-nbd.
#
# Examples:
#
# >>> build_compile_qemu_nbd path/to/nbd/directory/
# ...
# Provides the following file:
# "$1/qemu-nbd"
logging.info 'Compiling static qemu-nbd binary. This takes a while,' \
'grab a cup of coffee...'
# TODO check if need all, after disabling features
# TODO check dependencies
#su -s /bin/bash nobody
#yaourt --noconfirm -S glib2-static glibc-static pcre-static
#exit
pushd "$(dirname $1)"
[ ! -e qemu ] && git clone git://git.qemu.org/qemu.git qemu
cd qemu
# TODO check what other features can be disabled
./configure --static --target-list=x86_64-linux-user \
--python=$(which python2) --disable-docs --disable-gtk --disable-vnc \
--disable-kvm --disable-libssh2 --enable-user --disable-system \
--disable-fdt --disable-libnfs --disable-glusterfs --disable-libiscsi \
--disable-gcrypt --disable-nettle && make qemu-nbd
local ret=$?
popd
return $ret
}
build_compile_nbd() {
# Downloads and compiles nbd.
#
# Examples:
#
# >>> build_compile_nbd path/to/nbd/directory/
# ...
# Provides the following file:
# "$1/nbd.ko"
pushd "$1"
logging.info 'Compile the nbd kernel module.'
make
popd
return $?
}
build_clean_nbd() {
# Cleans nbd specific generated files
#
# Examples:
#
# >>> build_clean_nbd path/to/nbd/directory/
# ...
# Removes the following file:
# "$1/nbd.ko"
pushd "$1"
make clean
popd
return $?
}
build_compile_dnbd3() {
# Downloads and compiles dnbd3.
#
# Examples:
#
# >>> build_compile_dnbd3 path/to/dnbd3/directory/
# ...
# Provides the following file:
# "$1/build/dnbd3.ko"
pushd "$1/.."
rm --recursive --force "$1"
git clone git://git.openslx.org/dnbd3.git
cd dnbd3
./build.sh
popd
return $?
}
build_clean_dnbd3() {
# Removes generated dnbd3 specific files.
#
# Examples:
#
# >>> build_clean_dnbd3 path/to/dnbd3/directory/
# ...
# Removes the following directory:
# "$1/build"
rm --recursive --force "$1/build"
return $?
}
build_compile_systemd_preserve_process_marker() {
# Compiles simple c program.
#
# Examples:
#
# >>> build_compile_systemd_preserve_process_marker path/to/program/folder
pushd "$1"
make
popd
return $?
}
build_clean_systemd_preserve_process_marker() {
# Removes compiled simple c program.
#
# Examples:
#
# >>> build_clean_systemd_preserve_process_marker path/to/program/folder
pushd "$1"
make clean
popd
return $?
}
build_mount_partition() {
# Mounts a partition at given offset.
#
# Examples:
#
# >>> build_mount_partition /dev/DEVICE_NAME PARTITION_IDENTIFIER
# ...
local device="$1"
local partition_identifier="$2"
local loop_device="$(losetup --find)"
local sector_size="$(blockdev --getbsz "$device")"
local partition_info="(partx --raw --noheadings --output START,NAME,UUID \
"$device" 2>/dev/null| grep part)"
local offset_sectors="$(echo "$partition_identifier" | \
cut --delimiter=' ' --fields=1)"
if [ -z "$offset_sectors" ]; then
logging.warn "could not find partition with identifier \"$partition_identifier\" on device $device"
return 1
fi
# NOTE: Could overflow on 32bit systems
# logging.warn "$(("$offset_sectors"*512))"
local offset_bytes="$(echo | awk -v x="$offset_sectors" -v y="$sector_size" '{print x * y}')"
# NOTE: Test if mount works directly (problem with btrfs device id).
# mount --verbose --options loop,offset="$offset_bytes" "$device" "$mount_point"
losetup --verbose --offset "$offset_bytes" "$loop_device" "$device"
echo "$loop_device"
}
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