#!/bin/sh

set -x
set -e

BUILDDIR="$(pwd)"

sudo sh -c 'echo "deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-10 main" >> /etc/apt/sources.list'
wget -O - http://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
sudo apt-get update -q

sudo apt-get remove -y llvm-*
sudo rm -rf /usr/local/*
sudo apt-get install -y libxml2-dev libclang-10-dev llvm-10 llvm-10-dev liblld-10-dev cmake s3cmd gcc-7 g++-7

wget https://ziglang.org/deps/qemu-5.0.0-rc2-x86_64-alpinelinux.tar.xz
tar xf qemu-5.0.0-rc2-x86_64-alpinelinux.tar.xz
PATH=$PWD/qemu-5.0.0-rc2/bin:$PATH

# Make the `zig version` number consistent.
# This will affect the cmake command below.
git config core.abbrev 9

# This patch is a workaround for
# https://bugs.llvm.org/show_bug.cgi?id=44870 / https://github.com/llvm/llvm-project/issues/191
# It only applies to the apt.llvm.org packages.
patch <<'END_PATCH'
--- CMakeLists.txt
+++ CMakeLists.txt
@@ -369,6 +369,7 @@ target_link_libraries(zig_cpp LINK_PUBLIC
     ${CLANG_LIBRARIES}
     ${LLD_LIBRARIES}
     ${LLVM_LIBRARIES}
+    "-Wl,/usr/lib/llvm-10/lib/LLVMPolly.so"
 )
 
 add_library(opt_c_util STATIC ${OPTIMIZED_C_SOURCES})
END_PATCH

export CC=gcc-7
export CXX=g++-7
mkdir build
cd build
cmake .. -DCMAKE_BUILD_TYPE=Release
make -j$(nproc) install
./zig build test -Denable-qemu
VERSION="$(./zig version)"

if [ "${BUILD_REASON}" != "PullRequest" ]; then
  ARTIFACTSDIR="$BUILDDIR/artifacts"
  mkdir "$ARTIFACTSDIR"
  docker run -i --mount type=bind,source="$ARTIFACTSDIR",target=/z ziglang/static-base:llvm10-x86_64-1 -j2 $BUILD_SOURCEVERSION
  TARBALL="$(ls $ARTIFACTSDIR)"
  mv "$DOWNLOADSECUREFILE_SECUREFILEPATH" "$HOME/.s3cfg"
  s3cmd put -P --add-header="cache-control: public, max-age=31536000, immutable" "$ARTIFACTSDIR/$TARBALL" s3://ziglang.org/builds/

  SHASUM=$(sha256sum $ARTIFACTSDIR/$TARBALL | cut '-d ' -f1)
  BYTESIZE=$(wc -c < $ARTIFACTSDIR/$TARBALL)

  JSONFILE="linux-$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 "$JSONFILE" "s3://ziglang.org/builds/x86_64-linux-$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