flatcar-scripts/build_library/test_image_content.sh

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# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# Files that are known to conflict with /usr but are OK because they
# are already fixed by toggling the symlink-usr USE flag.
USR_CONFLICT_WHITELIST=(
/bin/awk
/bin/basename
/bin/chroot
/bin/cut
/bin/dir
/bin/dirname
/bin/du
/bin/env
/bin/expr
/bin/gawk
/bin/head
/bin/mkfifo
/bin/mktemp
/bin/passwd
/bin/readlink
/bin/seq
/bin/sleep
/bin/sort
/bin/tail
/bin/touch
/bin/tr
/bin/tty
/bin/uname
/bin/vdir
/bin/wc
/bin/yes
)
test_image_content() {
local root="$1"
local returncode=0
local binaries=(
"$root/boot/vmlinuz"
"$root/bin/sed"
)
for test_file in "${binaries[@]}"; do
if [ ! -f "$test_file" ]; then
error "test_image_content: Cannot find '$test_file'"
returncode=1
fi
done
local libs=( $(sudo find "$root" -type f -name '*.so*') )
# Check that all .so files, plus the binaries, have the appropriate
# dependencies.
local check_deps="${BUILD_LIBRARY_DIR}/check_deps"
if ! "$check_deps" "$root" "${binaries[@]}" "${libs[@]}"; then
error "test_image_content: Failed dependency check"
returncode=1
fi
local blacklist_dirs=(
"$root/usr/share/locale"
)
for dir in "${blacklist_dirs[@]}"; do
if [ -d "$dir" ]; then
warn "test_image_content: Blacklisted directory found: $dir"
# Only a warning for now, size isn't important enough to kill time
# playing whack-a-mole on things like this this yet.
#error "test_image_content: Blacklisted directory found: $dir"
#returncode=1
fi
done
# Check that /etc/localtime is a symbolic link pointing at
# /var/lib/timezone/localtime.
local localtime="$root/etc/localtime"
if [ ! -L "$localtime" ]; then
error "test_image_content: /etc/localtime is not a symbolic link"
returncode=1
else
local dest=$(readlink "$localtime")
if [ "$dest" != "/var/lib/timezone/localtime" ]; then
error "test_image_content: /etc/localtime points at $dest"
returncode=1
fi
fi
# Check that there are no conflicts between /* and /usr/*
# TODO(marineam): Before symlinking to /usr this test will need to be
# rewritten to query the package database instead of the filesystem.
local check_dir
for check_dir in "${root}"/usr/*; do
if [[ ! -d "${check_dir}" || -h "${check_dir}" ]]; then
continue
fi
for check_file in "${check_dir}"/*; do
root_file="${root}${check_file##*/usr}"
trimmed_path="${root_file#${root}}"
local whitelist
for whitelist in "${USR_CONFLICT_WHITELIST[@]}"; do
if [[ "${trimmed_path}" == "${whitelist}" ]]; then
continue 2
fi
done
if [[ -e "${root_file}" || -h "${root_file}" ]]; then
# TODO(marineam): make fatal before switching to symlinks
warn "test_image_content: ${root_file#${root}} conflicts with /usr"
fi
done
done
return $returncode
}