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#!/usr/bin/env bash
# Copyright (c) the JPEG XL Project Authors. All rights reserved.
#
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# This file downloads the dependencies needed to build JPEG XL into third_party.
# These dependencies are normally pulled by git.
set -eu
MYDIR=$(dirname $(realpath "$0"))
# Git revisions we use for the given submodules. Update these whenever you
# update a git submodule.
TESTDATA="873045a9c42ed60721756e26e2a6b32e17415205"
THIRD_PARTY_BROTLI="36533a866ed1ca4b75cf049f4521e4ec5fe24727"
THIRD_PARTY_HIGHWAY="58b52a717469e62b2d9b8eaa2f5dddb44d4a4cbf"
THIRD_PARTY_SKCMS="42030a771244ba67f86b1c1c76a6493f873c5f91"
THIRD_PARTY_SJPEG="e5ab13008bb214deb66d5f3e17ca2f8dbff150bf"
THIRD_PARTY_ZLIB="51b7f2abdade71cd9bb0e7a373ef2610ec6f9daf" # v1.3.1
THIRD_PARTY_LIBPNG="f135775ad4e5d4408d2e12ffcc71bb36e6b48551" # v1.6.40
THIRD_PARTY_LIBJPEG_TURBO="8ecba3647edb6dd940463fedf38ca33a8e2a73d1" # 2.1.5.1
# Download the target revision from GitHub.
download_github() {
local path="$1"
local project="$2"
local varname=`echo "$path" | tr '[:lower:]' '[:upper:]'`
varname="${varname//[\/-]/_}"
local sha
eval "sha=\${${varname}}"
local down_dir="${MYDIR}/downloads"
local local_fn="${down_dir}/${sha}.tar.gz"
if [[ -e "${local_fn}" && -d "${MYDIR}/${path}" ]]; then
echo "${path} already up to date." >&2
return 0
fi
local url
local strip_components=0
if [[ "${project:0:4}" == "http" ]]; then
# "project" is a googlesource.com base url.
url="${project}${sha}.tar.gz"
else
# GitHub files have a top-level directory
strip_components=1
fi
echo "Downloading ${path} version ${sha}..." >&2
mkdir -p "${down_dir}"
curl -L --show-error -o "${local_fn}.tmp" "${url}"
mkdir -p "${MYDIR}/${path}"
tar -zxf "${local_fn}.tmp" -C "${MYDIR}/${path}" \
--strip-components="${strip_components}"
mv "${local_fn}.tmp" "${local_fn}"
}
is_git_repository() {
local dir="$1"
local toplevel=$(git rev-parse --show-toplevel)
[[ "${dir}" == "${toplevel}" ]]
}
main() {
if is_git_repository "${MYDIR}"; then
cat >&2 <<EOF
Current directory is a git repository, downloading dependencies via git:
git submodule update --init --recursive
EOF
git -C "${MYDIR}" submodule update --init --recursive --depth 1 --recommend-shallow
return 0
fi
# Sources downloaded from a tarball.
download_github testdata libjxl/testdata
download_github third_party/brotli google/brotli
download_github third_party/highway google/highway
download_github third_party/sjpeg webmproject/sjpeg
download_github third_party/skcms \
download_github third_party/zlib madler/zlib
download_github third_party/libpng glennrp/libpng
download_github third_party/libjpeg-turbo libjpeg-turbo/libjpeg-turbo
echo "Done."
}
main "$@"