#!/bin/bash
# Copyright (c) 2021, Google Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# * Neither the name of Google nor the names of its contributors may
# be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
set -xe
LIBWEBP_ROOT="$(realpath "$(dirname "$0")/..")"
readonly LIBWEBP_ROOT
readonly WORKSPACE=${WORKSPACE:-"$(mktemp -d -t webp.scanbuild.XXX)"}
# shellcheck source=infra/common.sh
source "${LIBWEBP_ROOT}/infra/common.sh"
usage() {
cat << EOF
Usage: $(basename "$0") MODE
Options:
MODE supported scan modes: (shallow|deep)
Environment variables:
WORKSPACE directory where the build is done.
EOF
}
#######################################
# Wrap clang-tools scan-build.
# Globals:
# OUTPUT_DIR target directory where scan-build report is generated.
# MODE scan-build mode
# Arguments:
# $* scan-build additional args.
# Returns:
# scan-build retcode
#######################################
scan_build() {
scan-build -o "${OUTPUT_DIR}" --use-analyzer="$(command -v clang)" \
-analyzer-config mode="${MODE}" "$*"
}
MODE=${1:?"MODE is not specified.$(
echo
usage
)"}
readonly OUTPUT_DIR="${WORKSPACE}/output-${MODE}"
readonly BUILD_DIR="${WORKSPACE}/build"
make_build_dir "${OUTPUT_DIR}"
make_build_dir "${BUILD_DIR}"
cd "${LIBWEBP_ROOT}"
./autogen.sh
cd "${BUILD_DIR}"
grep -m 1 -q 'enable-asserts' "${LIBWEBP_ROOT}/configure.ac" \
&& args='--enable-asserts'
scan_build "${LIBWEBP_ROOT}/configure" --enable-everything "${args}"
scan_build make -j4
index="$(find "${OUTPUT_DIR}" -name index.html)"
if [[ -f "${index}" ]]; then
mv "$(dirname "${index}")/"* "${OUTPUT_DIR}"
else
# make a empty report to wipe out any old bug reports.
cat << EOT > "${OUTPUT_DIR}/index.html"
<html>
<body>
No bugs reported.
</body>
</html>
EOT
fi