#!/bin/sh

set -x
set -e

brew update && brew install ncurses s3cmd

ZIGDIR="$(pwd)"
ARCH="x86_64"
TARGET="$ARCH-macos-none"
MCPU="baseline"
CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.10.0-dev.4560+828735ac0"
PREFIX="$HOME/$CACHE_BASENAME"
JOBS="-j2"

rm -rf $PREFIX
cd $HOME

wget -nv "https://ziglang.org/deps/$CACHE_BASENAME.tar.xz"
tar xf "$CACHE_BASENAME.tar.xz"

ZIG="$PREFIX/bin/zig"
export CC="$ZIG cc -target $TARGET -mcpu=$MCPU"
export CXX="$ZIG c++ -target $TARGET -mcpu=$MCPU"

cd $ZIGDIR

# Make the `zig version` number consistent.
# This will affect the cmake command below.
git config core.abbrev 9
git fetch --unshallow || true
git fetch --tags

mkdir build
cd build
cmake .. \
  -DCMAKE_INSTALL_PREFIX="stage3-release" \
  -DCMAKE_PREFIX_PATH="$PREFIX" \
  -DCMAKE_BUILD_TYPE=Release \
  -DZIG_TARGET_TRIPLE="$TARGET" \
  -DZIG_TARGET_MCPU="$MCPU" \
  -DZIG_STATIC=ON

# Now cmake will use zig as the C/C++ compiler. We reset the environment variables
# so that installation and testing do not get affected by them.
unset CC
unset CXX

make $JOBS install

stage3-release/bin/zig build test docs \
  --zig-lib-dir "$(pwd)/../lib" \
  -Denable-macos-sdk \
  -Dstatic-llvm \
  -Dskip-non-native \
  --search-prefix "$PREFIX"

# Produce the experimental std lib documentation.
mkdir -p "stage3-release/doc/std"
stage3-release/bin/zig test "$(pwd)/../lib/std/std.zig" \
  --zig-lib-dir "$(pwd)/../lib" \
  -femit-docs="$(pwd)/stage3-release/doc/std" \
  -fno-emit-bin

if [ "${BUILD_REASON}" != "PullRequest" ]; then
  # Remove the unnecessary bin dir in stage3-release/bin/zig
  mv stage3-release/bin/zig stage3-release/
  rmdir stage3-release/bin

  # Remove the unnecessary zig dir in stage3-release/lib/zig/std/std.zig
  mv stage3-release/lib/zig stage3-release/lib2
  rmdir stage3-release/lib
  mv stage3-release/lib2 stage3-release/lib

  mv ../LICENSE stage3-release/
  mv ../zig-cache/langref.html stage3-release/doc

  VERSION=$(stage3-release/zig version)
  DIRNAME="zig-macos-$ARCH-$VERSION"
  TARBALL="$DIRNAME.tar.xz"
  mv stage3-release "$DIRNAME"
  tar cfJ "$TARBALL" "$DIRNAME"

  mv "$DOWNLOADSECUREFILE_SECUREFILEPATH" "$HOME/.s3cfg"
  s3cmd put -P --add-header="cache-control: public, max-age=31536000, immutable" "$TARBALL" s3://ziglang.org/builds/

  SHASUM=$(shasum -a 256 $TARBALL | cut '-d ' -f1)
  BYTESIZE=$(wc -c < $TARBALL)

  JSONFILE="macos-$GITBRANCH.json"
  touch $JSONFILE
  echo "{\"tarball\": \"$TARBALL\"," >>$JSONFILE
  echo "\"shasum\": \"$SHASUM\"," >>$JSONFILE
  echo "\"size\": \"$BYTESIZE\"}" >>$JSONFILE

  s3cmd put -P --add-header="Cache-Control: max-age=0, must-revalidate" "$JSONFILE" "s3://ziglang.org/builds/$JSONFILE"
  s3cmd put -P "$JSONFILE" "s3://ziglang.org/builds/$ARCH-macos-$VERSION.json"

  # `set -x` causes these variables to be mangled.
  # See https://developercommunity.visualstudio.com/content/problem/375679/pipeline-variable-incorrectly-inserts-single-quote.html
  set +x
  echo "##vso[task.setvariable variable=tarball;isOutput=true]$TARBALL"
  echo "##vso[task.setvariable variable=shasum;isOutput=true]$SHASUM"
  echo "##vso[task.setvariable variable=bytesize;isOutput=true]$BYTESIZE"
  echo "##vso[task.setvariable variable=version;isOutput=true]$VERSION"
fi