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# A shell library for yarn scenario step implementations.
# Copyright 2015 Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-3+ =*=
# Is running of scenarios of a given type requested? If nothing is
# requested ($TESTS is empty), then everything is.
test_requested()
{
if [ "${TESTS:-}" = "" ]
then
return 0
elif echo "${TESTS}" | tr , '\n' | grep -Fx "$1"
then
return 0
else
return 1
fi
}
support_required()
{
if [ ! -x /usr/bin/cmdtest ]; then
echo "All tests need the cmdtest package."
return 1
fi
}
build_support_required()
{
if [ ! -x /usr/bin/bc ]; then
echo "Build tests need the bc package."
return 1
fi
}
# Convert a size with a unit, such a kB, to plain bytes.
size_in_bytes()
{
local amount="$(echo "$1" | sed 's/[^0-9]*$//')"
local unit="$(echo "$1" | sed 's/^[0-9]*//' | tr A-Z a-z)"
local factor=1
case "$unit" in
k|kb) factor=1000 ;;
m|mb) factor=1000000 ;;
g|gb) factor=1000000000 ;;
t|tb) factor=1000000000000 ;;
ki|kib) factor=1024 ;;
mi|mib) factor=1048576 ;;
gi|gib) factor=1073741824 ;;
ti|tib) factor=1099511627776 ;;
esac
echo "$amount * $factor" | bc -lq
}
# Make a partition in a disk image accessible as a block device.
# Return it's device file.
kpartx_image_partition()
{
kpartx -sav "$1" | awk -v "n=$2" 'NR == n { print "/dev/mapper/" $3 }'
}
# Undo kpartx_image_partition.
unkpartx_image()
{
dmsetup remove /dev/mapper/$(dmsetup ls|awk -F' ' '{print $1}')
losetup -d $(losetup -a | grep "$1" | awk -F':' '{print $1}')
kpartx -d "$1"
}
# Rembember and retrieve settings between scenario steps. This is
# implemented by a shell script snippet that gets sourced at the end
# of this shell library.
remember_setting()
{
echo "$1=$2" >> "$DATADIR/settings.sh"
}
if [ -e "$DATADIR/settings.sh" ]
then
. "$DATADIR/settings.sh"
fi
# Make sure the current working directory is $DATADIR, not $SRCDIR.
# This makes it a little simpler to write scenario step
# implementations by not having to be specifying $DATADIR explicitly
# everywhere.
cd "$DATADIR"
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