243 lines
7.9 KiB
Bash
Executable File
243 lines
7.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Your build script should simply source this script, optionally override any build hooks and then invoke `build`.
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# The build product should be available under `build-<platform>~/out`, under the library path.
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#
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# Hook lifecycle:
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# - build
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# - initialize
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# - needs
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# - clean
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# - prepare
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# - target
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# - prepare
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# - configure
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# - build
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# - finalize
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# - merge
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# - clean
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#
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# You can override any of these hooks to provide a custom implementation or call their underscore variant to delegate to the default implementation.
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# For example:
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# target_prepare() { make -s distclean; }
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# target_configure() { _target_configure "$@" --enable-minimal; }
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set -e
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# needs <binary> ...
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#
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# Utility for ensuring all tools needed by the script are installed prior to starting.
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needs() { _needs "$@"; }
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_needs() {
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local failed=0
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for tool; do
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hash "$tool" || { echo >&2 "Missing: $tool. Please install this tool."; (( failed++ )); }
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done
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return $failed
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}
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# initialize <prefix>
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#
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# The build script invokes this once prior to all other actions if the user wants a clean slate.
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initialize() { _initialize "$@"; }
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_initialize() {
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initialize_needs "$@"
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initialize_clean "$@"
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}
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# initialize_needs <prefix>
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#
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# Check if all tools needed for the default implementations are available.
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#
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# By default, this will check for `automake` and `autoreconf`.
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initialize_needs() { _initialize_needs "$@"; }
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_initialize_needs() {
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needs automake autoreconf
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}
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# initialize_clean <prefix>
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#
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# Perform any necessary clean-up of the library code prior to building.
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#
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# By default, this will run `make distclean`.
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initialize_clean() { _initialize_clean "$@"; }
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_initialize_clean() {
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[[ ! -e Makefile ]] || make -s distclean
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}
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# prepare <prefix> [<arch> ...]
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#
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# Configure the library for building the <arch>s on this machine.
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# The build script invokes this once prior to building each of its targets.
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# The <prefix> has been newly created.
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#
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# By default, this will run `autoreconf`.
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prepare() { _prepare "$@"; }
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_prepare() {
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local prefix=$1; shift 1
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autoreconf --verbose --install --symlink 2> >(sed 's/^\([^:]*\):[0-9]\{1,\}: /\1: /')
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}
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# target <prefix> <arch> <platform>
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#
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# Build the library for the given <arch> and <platform> into the given <prefix>.
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# The build script invokes this function when it's ready to build the library's code.
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# Generic platform-specific environment setup has been done.
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target() { _target "$@"; }
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_target() {
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target_prepare "$@"
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target_configure "$@"
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target_build "$@"
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}
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# target_prepare <prefix> <arch> <platform>
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#
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# Prepare the library configuration for building the target.
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#
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# By default, this will run `make clean` if a Makefile is found.
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target_prepare() { _target_prepare "$@"; }
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_target_prepare() {
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local prefix=$1 arch=$2 platform=$3; shift 3
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[[ ! -e Makefile ]] || make -s clean
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}
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# target_configure <prefix> <arch> <platform> [<args> ...]
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#
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# Configure the library for building the target.
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#
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# By default, this will run `./configure --host=<cpu> --prefix=<prefix>/<arch> --disable-shared <args>`.
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target_configure() { _target_configure "$@"; }
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_target_configure() {
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local prefix=$1 arch=$2 platform=$3 cpu=$arch; shift 3
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[[ $cpu = *arm* ]] && cpu=arm
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./configure ${cpu:+--host="$cpu"} --prefix="$prefix/$arch" --disable-shared "$@"
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}
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# target_build <prefix> <arch> <platform>
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#
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# Build the library code for the target.
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#
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# By default, this will run `make check install`.
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target_build() { _target_build "$@"; }
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_target_build() {
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local prefix=$1 arch=$2 platform=$3; shift 3
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#make -j3 check
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make -j3 install
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}
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# finalize <prefix> [ <arch> ... ]
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#
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# Prepare the final build product.
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# The build script invokes this once after a successful build of all targets.
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finalize() { _finalize "$@"; }
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_finalize() {
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finalize_merge "$@"
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finalize_clean "$@"
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}
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# finalize_merge <prefix> [ <arch> ... ]
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#
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# Merge all targets into a product the application can use, available at `<prefix>/out`.
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#
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# By default, this will copy the headers to `<prefix>/out/include` and merge the libraries into `<prefix>/out/lib`.
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finalize_merge() { _finalize_merge "$@"; }
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_finalize_merge() {
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local prefix=$1; shift 1
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mv -f -- "$prefix/$1/include" "$prefix/out/"
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mkdir -p "$prefix/out/lib"
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for lib in "$prefix/$1/lib/"*; do
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if lipo -info "$lib" >/dev/null 2>&1; then
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local lib=("${lib##*/}") libs=("${@/#/$prefix/}") libs=("${libs[@]/%//lib/$lib}")
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lipo -create "${libs[@]}" -output "$prefix/out/lib/$lib"
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fi
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done
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}
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# finalize_clean <prefix> [ <arch> ... ]
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#
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# Clean up the library after a successful build (eg. housekeeping of temporary files).
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#
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# By default, this will run `make distclean`.
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finalize_clean() { _finalize_clean "$@"; }
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_finalize_clean() {
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[[ ! -e Makefile ]] || make -s distclean
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}
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# build <name> [<platform>]
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#
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# Build the library <name> (found at ../<name>) for platform <platform> (or "host" if unspecified).
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build() { _build "$@"; }
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_build() {
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local name=$1 platform=${2:-host}
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local path="../$name"
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[[ $path = /* ]] || path="${BASH_SOURCE%/*}/$path"
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cd "$path"
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if [[ $platform = host ]]; then
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case "$(uname -s)" in
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'Darwin') platform='macos' archs=( "$(uname -m)" ) ;;
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esac
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fi
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if (( ! ${#archs[@]} )); then
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case "$platform" in
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'macos') archs=( 'x86_64' ) ;;
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'ios') archs=( 'i386' 'x86_64' 'armv7' 'armv7s' 'arm64' ) ;;
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esac
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fi
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local prefix="$PWD/build-$platform~"
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initialize "$prefix"
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# "clean" argument wipes the prefix and exits. If lib exists in prefix, skip build.
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if [[ ${BASH_ARGV[@]:(-1)} = clean ]]; then
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rm -rf "$prefix"
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exit
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elif files=( "$prefix"/out/lib/* ) && [[ -e $files ]]; then
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echo >&2 "Output product already exists: ${files[*]}. Skipping build."
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exit
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fi
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# Prepare the output location and build configuration.
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mkdir -p "$prefix/out"
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prepare "$prefix" "${archs[@]}"
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# Repeat the build for each individual architecture.
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for arch in "${archs[@]}"; do (
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# Set up a base environment for the platform.
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case "$platform" in
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'macos')
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SDKROOT="$(xcrun --show-sdk-path --sdk macosx)"
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export PATH="$(xcrun --show-sdk-platform-path --sdk macosx)/usr/bin:$PATH"
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export CFLAGS="-arch $arch -isysroot $SDKROOT -mmacosx-version-min=${MACOSX_DEPLOYMENT_TARGET:-10.8} -O2 -flto -g $CFLAGS"
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export LDFLAGS="-arch $arch -isysroot $SDKROOT -mmacosx-version-min=${MACOSX_DEPLOYMENT_TARGET:-10.8} -flto $LDFLAGS"
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export CPPFLAGS="$CFLAGS $CPPFLAGS"
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;;
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'ios')
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if [[ $arch = *arm* ]]; then
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SDKROOT="$(xcrun --show-sdk-path --sdk iphoneos)"
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export PATH="$(xcrun --show-sdk-platform-path --sdk iphoneos)/usr/bin:$PATH"
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export CFLAGS="-mthumb -arch $arch -isysroot $SDKROOT -mios-version-min=${IPHONEOS_DEPLOYMENT_TARGET:-8.0} -O2 -flto -g $CFLAGS"
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export LDFLAGS="-mthumb -arch $arch -isysroot $SDKROOT -mios-version-min=${IPHONEOS_DEPLOYMENT_TARGET:-8.0} -flto $LDFLAGS"
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export CPPFLAGS="$CFLAGS $CPPFLAGS"
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else
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SDKROOT="$(xcrun --show-sdk-path --sdk iphonesimulator)"
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export PATH="$(xcrun --show-sdk-platform-path --sdk iphonesimulator)/usr/bin:$PATH"
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export CFLAGS="-arch $arch -isysroot $SDKROOT -mios-simulator-version-min=${IPHONEOS_DEPLOYMENT_TARGET:-8.0} -O2 -flto -g $CFLAGS"
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export LDFLAGS="-arch $arch -isysroot $SDKROOT -mios-simulator-version-min=${IPHONEOS_DEPLOYMENT_TARGET:-8.0} -flto $LDFLAGS"
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export CPPFLAGS="$CFLAGS $CPPFLAGS"
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fi
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;;
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esac
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target "$prefix" "$arch" "$platform"
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); done
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finalize "$prefix" "${archs[@]}"
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}
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