From d60da3d186512a9b3da315b433e48a00ebcdf657 Mon Sep 17 00:00:00 2001
From: Ashcon Partovi <ashcon@partovi.net>
Date: Fri, 19 Jul 2024 16:24:45 -0700
Subject: [PATCH] Unified build script

---
 scripts/build.sh | 637 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 637 insertions(+)
 create mode 100644 scripts/build.sh

diff --git a/scripts/build.sh b/scripts/build.sh
new file mode 100644
index 0000000000..6413538415
--- /dev/null
+++ b/scripts/build.sh
@@ -0,0 +1,637 @@
+#!/bin/sh
+# Script to build Bun from source.
+# Uses `sh` instead of `bash`, so it can run in minimal Docker images.
+
+path() {
+  string="$1"
+  for arg in "${@:2}"; do
+    if [ -n "$arg" ]; then
+      string="$string/$arg"
+    fi
+  done
+  if [ -n "$string" ] && [ "$os" = "windows" ]; then
+    cygpath -w "$string" | sed 's/\\/\//g'
+  else
+    echo "$string"
+  fi
+}
+
+scripts_dir=$(path $(cd -- "$(dirname -- "$0")" && pwd -P))
+project_dir=$(path $(dirname "$scripts_dir"))
+src_dir=$(path "$project_dir" "src")
+src_deps_dir=$(path "$src_dir" "deps")
+build_dir=$(path "$project_dir" "build")
+build_deps_dir=$(path "$build_dir" "bun-deps")
+
+which() {
+  if [ "$os" = "windows" ] && command -v "$1" >/dev/null 2>&1; then
+    # On Windows, cygwin will transform to path to /cygdrive which
+    # causes problems with cmake and other tools.
+    cygpath -w $(command -v "$1") | sed 's/\\/\//g'
+  else
+    command -v "$1"
+  fi
+}
+
+exists() {
+  which "$1" >/dev/null 2>&1
+}
+
+require() {
+  if ! exists "$1"; then
+    error "command is required to build bun: $1"
+  fi
+  which "$1"
+}
+
+is_interactive() {
+  if exists tty && tty -s >/dev/null 2>&1; then
+    print "1"
+  fi
+}
+
+ansi_color() {
+  case "$1" in
+    reset)  printf "\033[0m" ;;
+    bold)   printf "\033[1m" ;;
+    dim)    printf "\033[2m" ;;
+    red)    printf "\033[31m" ;;
+    green)  printf "\033[32m" ;;
+    yellow) printf "\033[33m" ;;
+    pink)   printf "\033[35m" ;;
+    cyan)   printf "\033[36m" ;;
+    *) ;;
+  esac
+}
+
+print() {
+  printf "%s" "$1"
+}
+
+pretty() {
+  string="$1"
+  for color in reset bold dim red green yellow pink cyan; do
+    string=$(print "$string" | sed -e "s/{$color}/$(ansi_color "$color")/g")
+  done
+  print "$string"
+}
+
+pretty_ln() {
+  pretty "$1"
+  printf "\n"
+}
+
+warn() {
+  pretty_ln "{yellow}{bold}warn{reset}: $*{reset}" >&2
+}
+
+error() {
+  pretty_ln "{red}{bold}error{reset}: $*{reset}" >&2
+  exit 1
+}
+
+prompt() {
+  if is_interactive >/dev/null; then
+    pretty "$1 {dim}[y/n]{reset} "
+    read -r
+    case "$REPLY" in
+      [yY]) ;;
+      *) exit 1 ;;
+    esac
+  fi
+}
+
+lowercase() {
+  tr '[:upper:]' '[:lower:]'
+}
+
+oneline() {
+  head -n 1
+}
+
+regex() {
+  # There are two versions of grep: GNU and BSD.
+  # GNU grep supports -P, BSD grep supports -E.
+  if grep --version | grep -q BSD 2>/dev/null; then
+    grep -Eo "$1"
+  else
+    grep -Po "$1"
+  fi
+}
+
+semver() {
+  regex '[0-9]+\.[0-9]\.*[0-9]*' | oneline
+}
+
+machine_os() {
+  os=$(uname -s)
+  case "$os" in
+    Linux)                    print "linux" ;;
+    Darwin)                   print "darwin" ;;
+    MINGW* | MSYS* | CYGWIN*) print "windows" ;;
+    *) error "unsupported operating system: $os" ;;
+  esac
+}
+
+machine_arch() {
+  arch=$(uname -m)
+  case "$arch" in
+    x86_64 | amd64)  print "x64" ;;
+    aarch64 | arm64) print "aarch64" ;;
+    *) error "unsupported architecture: $arch" ;;
+  esac
+}
+
+machine_cpu() {
+  case "$arch" in
+    x64)     print "haswell" ;;
+    aarch64) print "native" ;;
+    *) error "unsupported architecture: $arch" ;;
+  esac
+}
+
+default_ci() {
+  if [ "$CI" = "true" ] || [ "$CI" = "1" ]; then
+    print "1"
+  else
+    print "0"
+  fi
+}
+
+default_jobs() {
+  if exists nproc; then
+    nproc
+  elif exists sysctl; then
+    sysctl -n "hw.ncpu"
+  else
+    print "1"
+  fi
+}
+
+default_llvm_version() {
+  print "16"
+}
+
+default_macos_version() {
+  print "12.0"
+}
+
+default_cc_version() {
+  print "17"
+}
+
+default_cc_flags() {
+  flags="$CFLAGS"
+
+  if [ "$os" = "windows" ]; then
+    flags="$flags /O2"
+    flags="$flags /Z7"
+    flags="$flags /MT"
+    flags="$flags /Ob2"
+    flags="$flags /DNDEBUG"
+    flags="$flags /U_DLL"
+  else
+    flags="$flags -O3"
+    flags="$flags -fno-exceptions"
+    flags="$flags -fvisibility=hidden"
+    flags="$flags -fvisibility-inlines-hidden"
+    flags="$flags -mno-omit-leaf-frame-pointer"
+    flags="$flags -fno-omit-frame-pointer"
+    flags="$flags -fno-asynchronous-unwind-tables"
+    flags="$flags -fno-unwind-tables"
+    flags="$flags -faddrsig"
+    flags="$flags -std=c$cc_version"
+  fi
+
+  if [ "$os" = "linux" ]; then
+    flags="$flags -ffunction-sections"
+    flags="$flags -fdata-sections"
+  elif [ "$os" = "darwin" ]; then
+    flags="$flags -mmacosx-version-min=$macos_version"
+    flags="$flags -D__DARWIN_NON_CANCELABLE=1"
+  fi
+
+  if [ "$arch" = "aarch64" ]; then
+    if [ "$os" = "linux" ]; then
+      flags="$flags -march=armv8-a+crc"
+      flags="$flags -mtune=ampere1"
+    elif [ "$os" = "darwin" ]; then
+      flags="$flags -mcpu=apple-m1"
+    fi
+  elif [ "$baseline" = "1" ]; then
+    flags="$flags -march=nehalem"
+  else
+    flags="$flags -march=$cpu"
+  fi
+
+  flags="$flags -fuse-ld=$ld"
+  if [ "$lto" = "1" ]; then
+    flags="$flags -flto"
+    if [ "$os" = "windows" ]; then
+      flags="$flags -Xclang"
+      flags="$flags -emit-llvm-bc"
+    fi
+  fi
+
+  if [ "$os" != "windows" ]; then
+    if [ -n "$FORCE_PIC" ]; then
+      flags="$flags -fpic"
+    else
+      flags="$flags -fno-pie"
+      flags="$flags -fno-pic"
+    fi
+  fi
+
+  print "$flags"
+}
+
+default_cc() {
+  if [ "$os" = "windows" ]; then
+    which "clang-cl"
+  else
+    which "clang-$llvm_version" || which "clang" || which "cc"
+  fi
+}
+
+default_cxx_version() {
+  print "20"
+}
+
+default_cxx_flags() {
+  flags="$CXXFLAGS"
+  flags="$flags $(default_cc_flags)"
+  flags="$flags -fno-rtti"
+  flags="$flags -std=c++$cxx_version"
+  print "$flags"
+}
+
+default_cxx() {
+  if [ "$os" = "windows" ]; then
+    which "clang-cl"
+  else
+    which "clang++-$llvm_version" || which "clang++" || which "c++"
+  fi
+}
+
+default_cmake_flags() {
+  flags="$CMAKE_FLAGS"
+  flags="$flags -GNinja"
+  flags="$flags -DCMAKE_BUILD_PARALLEL_LEVEL=$jobs"
+  flags="$flags -DCMAKE_C_STANDARD=$cc_version"
+  flags="$flags -DCMAKE_CXX_STANDARD=$cxx_version"
+  flags="$flags -DCMAKE_C_STANDARD_REQUIRED=ON"
+  flags="$flags -DCMAKE_CXX_STANDARD_REQUIRED=ON"
+  flags="$flags -DCMAKE_C_COMPILER=$cc"
+  flags="$flags -DCMAKE_CXX_COMPILER=$cxx"
+
+  if [ "$type" = "debug" ]; then
+    flags="$flags -DCMAKE_BUILD_TYPE=Debug"
+  else
+    flags="$flags -DCMAKE_BUILD_TYPE=Release"
+  fi
+
+  if [ -n "$ccache" ]; then
+    flags="$flags -DCMAKE_C_COMPILER_LAUNCHER=$ccache"
+    flags="$flags -DCMAKE_CXX_COMPILER_LAUNCHER=$ccache"
+  fi
+
+  if [ "$os" = "linux" ]; then
+    flags="$flags -DCMAKE_CXX_EXTENSIONS=ON"
+  elif [ "$os" = "darwin" ]; then
+    flags="$flags -DCMAKE_OSX_DEPLOYMENT_TARGET=$macos_version"
+  elif [ "$os" = "windows" ]; then
+    flags="$flags -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded"
+  fi
+
+  if [ "$verbose" = "1" ]; then
+    flags="$flags -DCMAKE_VERBOSE_MAKEFILE=ON"
+  fi
+
+  print "$flags"
+}
+
+default_ar() {
+  which "llvm-ar-$llvm_version" || which "llvm-ar" || which "ar"
+}
+
+default_ld() {
+  if [ "$os" = "darwin" ]; then
+    which "ld64.lld" || which "ld"
+  elif [ "$os" = "linux" ]; then
+    which "ld.lld" || which "ld"
+  elif [ "$os" = "windows" ]; then
+    which "lld-link" || which "ld"
+  fi
+}
+
+default_ccache() {
+  which "ccache" || which "sccache"
+}
+
+default_zig_version() {
+  path="$project_dir/build.zig"
+  if [ -f "$path" ]; then
+    grep 'recommended_zig_version = "' "$path" | cut -d '"' -f2
+  else
+    warn "--zig-version should be defined due to missing file: {dim}$path{reset}" >&2
+    latest_zig_version
+  fi
+}
+
+latest_zig_version() {
+  curl -fsSL https://ziglang.org/download/index.json | jq -r .master.version
+}
+
+default_zig() {
+  which zig
+}
+
+default_bun_version() {
+  path="$project_dir/LATEST"
+  if [ -f "$path" ]; then
+    cat "$path"
+  else
+    warn "--bun-version should be defined due to missing file: {dim}$path{reset}" >&2
+    latest_bun_version
+  fi
+}
+
+latest_bun_version() {
+  curl -fsSL https://raw.githubusercontent.com/oven-sh/bun/main/LATEST
+}
+
+default_bun() {
+  which bun
+}
+
+default_version() {
+  path="$project_dir/LATEST"
+  if [ -f "$path" ]; then
+    cat "$path"
+  else
+    warn "--version should be defined due to missing file: {dim}$path{reset}" >&2
+    print "0.0.0"
+  fi
+}
+
+default_revision() {
+  if $(cd "$project_dir" && git rev-parse --is-inside-work-tree >/dev/null 2>&1); then
+    revision=$(cd "$project_dir" && git rev-parse HEAD)
+    print "$revision"
+  else
+    warn "--revision should be defined due missing git repository" >&2
+    print "unknown"
+  fi
+}
+
+artifact="bun"
+jobs=$(default_jobs)
+clean="0"
+ci=$(default_ci)
+verbose="0"
+
+os=$(machine_os)
+arch=$(machine_arch)
+cpu=$(machine_cpu)
+baseline="0"
+
+type="release"
+version=$(default_version)
+revision=$(default_revision)
+canary="0"
+assertions="0"
+lto="1"
+
+llvm_version=$(default_llvm_version)
+macos_version=$(default_macos_version)
+cc_version=$(default_cc_version)
+cc=$(default_cc)
+cxx_version=$(default_cxx_version)
+cxx=$(default_cxx)
+ar=$(default_ar)
+ld=$(default_ld)
+ccache=$(default_ccache)
+
+zig_version=$(default_zig_version)
+zig=$(default_zig)
+
+bun_version=$(default_bun_version)
+bun=$(default_bun)
+
+help() {
+  pretty_ln "Script to build {pink}{bold}Bun {reset}from source.
+
+Options:
+  {cyan}-h{reset}, {cyan}--help{reset}               Print this help message and exit{reset}
+  {cyan}--artifact{reset} {dim}[value]{reset}       Specify the artifact to build{reset}                        {dim}(default: {green}$artifact{reset}{dim}){reset}
+  {cyan}--clean{reset}                  Specify if the build should be cleaned{reset}               {dim}(default: {yellow}$clean{reset}{dim}){reset}
+  {cyan}-j{reset}, {cyan}--jobs{reset} {dim}[value]{reset}       Specify the number of jobs to run in parallel{reset}        {dim}(default: {yellow}$jobs{reset}{dim}){reset}
+  {cyan}--ci{reset}                     Specify if this is a CI build{reset}                        {dim}(default: {yellow}$ci{reset}{dim}){reset}
+  {cyan}--verbose{reset}                Specify if the build should be verbose{reset}               {dim}(default: {yellow}$verbose{reset}{dim}){reset}
+
+  {cyan}--os{reset} {dim}[value]{reset}             Specify the operating system to target               {dim}(default: {green}$os{reset}{dim}){reset}
+  {cyan}--arch{reset} {dim}[value]{reset}           Specify the architecture to target                   {dim}(default: {green}$arch{reset}{dim}){reset}
+  {cyan}--cpu{reset} {dim}[value]{reset}            Specify the CPU target to build{reset}                      {dim}(default: {green}$cpu{reset}{dim}){reset}
+  {cyan}--baseline{reset}               Specify if this is a baseline build{reset}                  {dim}(default: {yellow}$baseline{reset}{dim}){reset}
+
+  {cyan}--debug{reset}, {cyan}--release{reset}       Specify if this is a debug or release build{reset}          {dim}(default: {green}$type{reset}{dim}){reset}
+  {cyan}--version{reset} {dim}[semver]{reset}       Specify the version in {dim}bun --version{reset}                 {dim}(default: {yellow}$version{reset}{dim}){reset}
+  {cyan}--revision{reset} {dim}[sha]{reset}         Specify the git commit in {dim}bun --revision{reset}             {dim}(default: {green}$revision{reset}{dim}){reset}
+  {cyan}--canary{reset} {dim}[number]{reset}        Specify the build number of the canary build{reset}         {dim}(default: {yellow}$canary{reset}{dim}){reset}
+  {cyan}--assertions{reset}             Specify if assertions should be enabled{reset}              {dim}(default: {yellow}$assertions{reset}{dim}){reset}
+  {cyan}--lto{reset}, {cyan}--no-lto{reset}          Specify if link-time optimization should be enabled{reset}  {dim}(default: {yellow}$lto{reset}{dim}){reset}
+
+  {cyan}--llvm-version{reset} {dim}[semver]{reset}  Specify the LLVM version to use{reset}                      {dim}(default: {yellow}$llvm_version{reset}{dim}){reset}
+  {cyan}--macos-version{reset} {dim}[semver]{reset} Specify the minimum macOS version to target{reset}          {dim}(default: {yellow}$macos_version{reset}{dim}){reset}
+  {cyan}--cc-version{reset} {dim}[number]{reset}    Specify the C standard to use{reset}                        {dim}(default: {yellow}$cc_version{reset}{dim}){reset}
+  {cyan}--cxx-version{reset} {dim}[number]{reset}   Specify the C++ standard to use{reset}                      {dim}(default: {yellow}$cxx_version{reset}{dim}){reset}
+  {cyan}--cc{reset} {dim}[path]{reset}              Specify the C compiler to use{reset}                        {dim}(default: {green}$cc{reset}{dim}){reset}
+  {cyan}--cxx{reset} {dim}[path]{reset}             Specify the C++ compiler to use{reset}                      {dim}(default: {green}$cxx{reset}{dim}){reset}
+  {cyan}--ar{reset} {dim}[path]{reset}              Specify the archiver to use{reset}                          {dim}(default: {green}$ar{reset}{dim}){reset}
+  {cyan}--ld{reset} {dim}[path]{reset}              Specify the linker to use{reset}                            {dim}(default: {green}$ld{reset}{dim}){reset}
+
+  {cyan}--zig-version{reset} {dim}[semver]{reset}   Specify the zig version to use{reset}                       {dim}(default: {yellow}$zig_version{reset}{dim}){reset}
+  {cyan}--zig{reset} {dim}[path]{reset}             Specify the zig executable to use{reset}                    {dim}(default: {green}$zig{reset}{dim}){reset}
+
+  {cyan}--bun-version{reset} {dim}[semver]{reset}   Specify the bun version to use{reset}                       {dim}(default: {yellow}$bun_version{reset}{dim}){reset}
+  {cyan}--bun{reset} {dim}[path]{reset}             Specify the bun executable to use{reset}                    {dim}(default: {green}$bun{reset}{dim}){reset}
+"
+}
+
+clean() {
+  if [ "$clean" = "1" ]; then
+    rm -rf "$1"
+  fi
+}
+
+copy() {
+  if [ ! -f "$1" ]; then
+    error "file not found: $1"
+  fi
+  if [ ! -d "$2" ]; then
+    mkdir -p "$(dirname "$2")"
+  fi
+  cp "$1" "$2"
+  pretty_ln "{dim}-> {reset}{green}$2{reset}" 2>&1
+}
+
+cmake_setup() {
+  case "$@" in
+    *--pic*) export FORCE_PIC="1"; shift ;;
+    *) shift ;;
+  esac
+  export CC="$cc"
+  export CFLAGS="$(default_cc_flags)"
+  export CXX="$cxx"
+  export CXXFLAGS="$(default_cxx_flags)"
+  export CMAKE_FLAGS="$(default_cmake_flags)"
+  if [ "$os" = "darwin" ]; then
+    export CMAKE_OSX_DEPLOYMENT_TARGET="$macos_version"
+  fi
+  # export LDFLAGS="$LDFLAGS -Wl,-z,norelro "
+}
+
+cmake_configure() {
+  cmake -S "$1" -B "$2" ${CMAKE_FLAGS[@]} ${@:3}
+}
+
+cmake_build() {
+  flags="--build $@"
+  if [ "$type" = "debug" ]; then
+    flags="$flags --config Debug"
+  else
+    flags="$flags --config Release"
+  fi
+  cmake ${flags[@]}
+}
+
+if_windows() {
+  if [ "$os" = "windows" ]; then
+    print "$1"
+  else
+    print "$2"
+  fi
+}
+
+build_cares() {
+  src_dir=$(path "$src_deps_dir" "c-ares")
+  build_dir=$(path "$build_dir" "c-ares")
+  clean $build_dir
+
+  cmake_setup
+  cmake_configure $src_dir $build_dir \
+    -DCARES_STATIC=ON \
+    -DCARES_STATIC_PIC=ON \
+    -DCARES_SHARED=OFF
+  cmake_build $build_dir \
+    --target c-ares
+
+  artifact=$(if_windows "cares.lib" "libcares.a")
+  copy $(path "$build_dir" "lib" "$artifact") $(path "$build_deps_dir" "$artifact")
+}
+
+build_zstd() {
+  src_dir=$(path "$src_deps_dir" "zstd" "build" "cmake")
+  build_dir=$(path "$build_dir" "zstd")
+  clean $build_dir
+
+  cmake_setup
+  cmake_configure $src_dir $build_dir \
+    -DZSTD_BUILD_STATIC=ON
+  cmake_build $build_dir \
+    --target libzstd_static
+
+  artifact=$(if_windows "zstd_static.lib" "libzstd.a")
+  name=$(if_windows "zstd.lib" "libzstd.a")
+  copy $(path "$build_dir" "lib" "$artifact") $(path "$build_deps_dir" "$name")
+}
+
+build_lshpack() {
+  src_dir=$(path "$src_deps_dir" "ls-hpack")
+  build_dir=$(path "$build_dir" "ls-hpack")
+  clean $build_dir
+
+  cmake_setup
+  cmake_configure $src_dir $build_dir \
+    -DLSHPACK_XXH=ON \
+    -DSHARED=0
+  cmake_build $build_dir
+
+  artifact=$(if_windows "ls-hpack.lib" "libls-hpack.a")
+  name=$(if_windows "lshpack.lib" "liblshpack.a")
+  copy $(path "$build_dir" "$artifact") $(path "$build_deps_dir" "$name")
+}
+
+build_boringssl() {
+  src_dir=$(path "$src_deps_dir" "boringssl")
+  build_dir=$(path "$build_dir" "boringssl")
+  clean $build_dir
+
+  cmake_setup
+  cmake_configure $src_dir $build_dir
+  cmake_build $build_dir \
+    --target crypto \
+    --target ssl \
+    --target decrepit
+
+  artifact=$(if_windows "crypto.lib" "libcrypto.a")
+  name=$(if_windows "ssl.lib" "libssl.a")
+  copy $(path "$build_dir" "crypto" "$artifact") $(path "$build_deps_dir" "$name")
+
+  artifact=$(if_windows "decrepit.lib" "libdecrepit.a")
+  name=$(if_windows "decrepit.lib" "libdecrepit.a")
+  copy $(path "$build_dir" "decrepit" "$artifact") $(path "$build_deps_dir" "$name")
+}
+
+main() {
+  while [ $# -gt 0 ]; do
+    case "$1" in
+      -h | --help) help; exit 0 ;;
+      --artifact) artifact="$2"; shift ;;
+      --clean) clean="1"; shift ;;
+      -j | --jobs) jobs="$2"; shift ;;
+      --ci) ci="1"; shift ;;
+      --verbose) verbose="1"; shift ;;
+
+      --os) os="$2"; shift ;;
+      --arch) arch="$2"; shift ;;
+      --cpu) cpu="$2"; shift ;;
+      --baseline) baseline="1"; shift ;;
+
+      --version) version="$2"; shift ;;
+      --revision) revision="$2"; shift ;;
+      --canary) canary="1"; shift ;;
+      --debug) type="debug"; shift ;;
+      --assertions) assertions="1"; shift ;;
+      --lto) lto="1"; shift ;;
+      --no-lto) lto="0"; shift ;;
+
+      --llvm-version) llvm_version="$2"; shift ;;
+      --macos-version) macos_version="$2"; shift ;;
+      --cc-version) cc_version="$2"; shift ;;
+      --cxx-version) cxx_version="$2"; shift ;;
+      --cc) cc="$2"; shift ;;
+      --cxx) cxx="$2"; shift ;;
+      --ar) ar="$2"; shift ;;
+      --ld) ld="$2"; shift ;;
+      --ccache) ccache="1"; shift ;;
+
+      --zig-version) zig_version="$2"; shift ;;
+      --zig) zig="$2"; shift ;;
+
+      --bun-version) bun_version="$2"; shift ;;
+      --bun) bun="$2"; shift ;;
+      *) shift ;;
+    esac
+  done
+
+  case "$artifact" in
+    c*ares) build_cares ;;
+    zstd) build_zstd ;;
+    ls*hpack) build_lshpack ;;
+    boring*ssl) build_boringssl ;;
+    *) ;;
+  esac
+}
+
+main "$@"