dawn-cmake/tools/setup-build

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#!/usr/bin/env bash
# Copyright 2022 The Tint Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -e # Fail on any error.
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
ROOT_DIR="$( cd "$SCRIPT_DIR/.." >/dev/null 2>&1 && pwd )"
POSSIBLE_BUILD_SYSTEMS="[gn|cmake]"
POSSIBLE_BUILD_TYPES="[debug|release]"
POSSIBLE_BUILD_ARCHS="[native|x86]"
BUILD_SYSTEM=""
BUILD_TYPE=""
BUILD_ARCH=""
function show_usage() {
echo "setup-build $POSSIBLE_BUILD_SYSTEMS $POSSIBLE_BUILD_TYPES $POSSIBLE_BUILD_ARCHS"
echo
echo "creates a build directory in <dawn>/out using either GN or CMake, then"
echo "updates the '<dawn>/out/active' symlink to point to the build directory"
if [[ ! -z "$1" ]]; then
echo
echo "$1"
fi
exit 1
}
function set_build_system() {
if [[ ! -z "$BUILD_SYSTEM" ]]; then
echo "conflicting build systems $BUILD_SYSTEM and $1"
exit 1
fi
BUILD_SYSTEM=$1
}
function set_build_type() {
if [[ ! -z "$BUILD_TYPE" ]]; then
echo "conflicting build types $BUILD_TYPE and $1"
exit 1
fi
BUILD_TYPE=$1
}
function set_build_arch() {
if [[ ! -z "$BUILD_ARCH" ]]; then
echo "conflicting build architectures $BUILD_ARCH and $1"
exit 1
fi
BUILD_ARCH=$1
}
for arg in "$@"; do
lowered_arg=$(echo "$arg" | tr '[:upper:]' '[:lower:]') # lowercase
case $lowered_arg in
"gn")
set_build_system $lowered_arg
;;
"cmake")
set_build_system $lowered_arg
;;
"debug")
set_build_type $lowered_arg
;;
"release")
set_build_type $lowered_arg
;;
"x86")
set_build_arch $lowered_arg
;;
"native")
;;
"--help" | "-help" | "-h")
show_usage
;;
*)
show_usage "unknown argument '$arg'"
;;
esac
done
if [[ -z "$BUILD_SYSTEM" ]]; then
show_usage "build system $POSSIBLE_BUILD_SYSTEMS is required"
fi
if [[ -z "$BUILD_TYPE" ]]; then
show_usage "build type $POSSIBLE_BUILD_TYPES required"
fi
BUILD_DIR="$BUILD_SYSTEM-$BUILD_TYPE"
if [[ ! -z "$BUILD_ARCH" ]]; then
BUILD_DIR+="-$BUILD_ARCH"
fi
function generate() {
pushd "$ROOT_DIR" > /dev/null
mkdir -p "out/$BUILD_DIR"
rm -fr "out/active" || true
ln -s "$BUILD_DIR" "out/active"
"$@"
popd > /dev/null
}
case $BUILD_SYSTEM in
"gn")
GN_ARGS=""
case $BUILD_TYPE in
"debug")
GN_ARGS+="is_debug=true"
;;
"release")
GN_ARGS+="is_debug=false"
;;
*)
show_usage "invalid build type '$BUILD_TYPE'"
;;
esac
case $BUILD_ARCH in
"")
;;
"x86")
GN_ARGS+=" target_cpu=\"x86\""
;;
*)
show_usage "invalid build architecture '$BUILD_ARCH'"
;;
esac
generate "gn" "gen" "out/active" "--args=$GN_ARGS"
;;
"cmake")
CMAKE_FLAGS=()
CMAKE_FLAGS+=("-DTINT_BUILD_GLSL_WRITER=1")
CMAKE_FLAGS+=("-DTINT_BUILD_HLSL_WRITER=1")
CMAKE_FLAGS+=("-DTINT_BUILD_MSL_WRITER=1")
CMAKE_FLAGS+=("-DTINT_BUILD_SPV_WRITER=1")
CMAKE_FLAGS+=("-DTINT_BUILD_WGSL_WRITER=1")
if [[ -x $(command -v ccache) ]]; then
CMAKE_FLAGS+=("-DCMAKE_CXX_COMPILER_LAUNCHER=ccache")
fi
case $BUILD_TYPE in
"debug")
CMAKE_FLAGS+=("-DCMAKE_BUILD_TYPE=Debug")
;;
"release")
CMAKE_FLAGS+=("-DCMAKE_BUILD_TYPE=RelWithDebInfo")
;;
*)
show_usage "invalid build type '$BUILD_TYPE'"
;;
esac
case $BUILD_ARCH in
"")
;;
"x86")
CMAKE_FLAGS+=("-DCMAKE_CXX_FLAGS=-m32")
CMAKE_FLAGS+=("-DCMAKE_C_FLAGS=-m32")
;;
*)
show_usage "invalid build architecture '$BUILD_ARCH'"
;;
esac
generate "cmake" \
"-S" "." \
"-B" "out/active" \
"-GNinja" \
"${CMAKE_FLAGS[@]}"
;;
*)
echo "invalid build system '$BUILD_SYSTEM'"
show_usage
;;
esac