systemd/test/test-fstab-generator.sh

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#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later
set -e
shopt -s nullglob
shopt -s globstar
if [[ -n "$1" ]]; then
generator=$1
elif [[ -x /usr/lib/systemd/system-generators/systemd-fstab-generator ]]; then
generator=/usr/lib/systemd/system-generators/systemd-fstab-generator
elif [[ -x /lib/systemd/system-generators/systemd-fstab-generator ]]; then
generator=/lib/systemd/system-generators/systemd-fstab-generator
else
exit 1
fi
src="$(dirname "$0")/testdata/test-fstab-generator"
# fsck(8) is located in /usr/sbin on Debian
PATH=$PATH:/usr/sbin
for f in "$src"/test-*.input; do
echo "*** Running $f"
(
out=$(mktemp --tmpdir --directory "test-fstab-generator.XXXXXXXXXX")
# shellcheck disable=SC2064
trap "rm -rf '$out'" EXIT INT QUIT PIPE
exp="${f%.input}.expected"
if [[ "${f##*/}" =~ \.fstab\.input ]]; then
SYSTEMD_LOG_LEVEL=debug SYSTEMD_IN_INITRD=yes SYSTEMD_SYSFS_CHECK=no SYSTEMD_PROC_CMDLINE="fstab=yes root=fstab" SYSTEMD_FSTAB="$f" SYSTEMD_SYSROOT_FSTAB="/dev/null" $generator "$out" "$out" "$out"
else
SYSTEMD_LOG_LEVEL=debug SYSTEMD_IN_INITRD=yes SYSTEMD_PROC_CMDLINE="fstab=no $(cat "$f")" $generator "$out" "$out" "$out"
fi
# The option x-systemd.growfs creates symlink to system's systemd-growfs@.service in .mount.wants directory.
# The system that the test is currently running on may not have or may have outdated unit file.
# Let's replace the symlink with an empty file.
for i in "$out"/*/systemd-growfs@*.service; do
[[ -L "$i" ]] || continue
rm "$i"
touch "$i"
done
# For split-usr system
for i in "$out"/systemd-*.service; do
sed -i -e 's:ExecStart=/lib/systemd/:ExecStart=/usr/lib/systemd/:' "$i"
done
if [[ "${f##*/}" =~ \.fstab\.input ]]; then
for i in "$out"/*.{automount,mount,swap}; do
sed -i -e 's:SourcePath=.*$:SourcePath=/etc/fstab:' "$i"
done
fi
# We store empty files rather than dead symlinks, so that they don't get pruned when packaged up, so compare
# the list of filenames rather than their content
if ! diff -u <(find "$out" -printf '%P\n' | sort) <(find "$exp" -printf '%P\n' | sort); then
echo "**** Unexpected output for $f"
exit 1
fi
# Check the main units.
if ! diff -u "$out" "$exp"; then
echo "**** Unexpected output for $f"
exit 1
fi
# Also check drop-ins.
for i in "$out"/*; do
[[ -d "$i" ]] || continue
dir="${i##*/}"
for j in "$i"/*; do
fname="${j##*/}"
expf="$exp/$dir/$fname"
if [[ -L "$j" && ! -e "$j" ]]; then
# For dead symlink, we store an empty file.
if [[ ! -e "$expf" || -n "$(cat "$expf")" ]]; then
echo "**** Unexpected symlink $j created by $f"
exit 1
fi
continue
fi
if ! diff -u "$j" "$expf"; then
echo "**** Unexpected output in $j for $f"
exit 1
fi
done
done
) || exit 1
done