#!/bin/sh

set -x
set -e

# This parameters we wait at most 2mins, it should be enough to sort out any
# transient error.
CMD_MAX_RETRY=12
CMD_WAIT_TIME=10s

# Execute the given command and, in case of failure, try to execute it again
# after sleeping for CMD_WAIT_TIME.
# We give up after retrying CMD_MAX_RETRY times.
retry() {
  for i in $(seq 1 "$CMD_MAX_RETRY"); do
    eval "$@" && return
    echo "command \"$@\" failed, retrying..."
    sleep ${CMD_WAIT_TIME}
  done

  echo "command \"$@\" failed, giving up..."
  exit 1
}

BUILDDIR="$(pwd)"

sudo sh -c 'echo "deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-11 main" >> /etc/apt/sources.list'
retry 'wget -O - http://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -'
retry sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test

sudo apt-get remove -y llvm-*
sudo rm -rf /usr/local/*

retry sudo apt-get update -q
retry sudo apt-get install -y \
    libxml2-dev libclang-11-dev llvm-11 llvm-11-dev liblld-11-dev cmake s3cmd \
    gcc-7 g++-7 ninja-build tidy \

QEMUBASE="qemu-linux-x86_64-5.2.0"
wget -nv https://ziglang.org/deps/$QEMUBASE.tar.xz
tar xf $QEMUBASE.tar.xz
PATH=$PWD/$QEMUBASE/bin:$PATH

WASMTIME="wasmtime-v0.20.0-x86_64-linux"
wget -nv https://github.com/bytecodealliance/wasmtime/releases/download/v0.20.0/$WASMTIME.tar.xz
tar xf $WASMTIME.tar.xz
PATH=$PWD/$WASMTIME:$PATH

# 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

export CC=gcc-7
export CXX=g++-7
mkdir build
cd build
cmake .. -DCMAKE_BUILD_TYPE=Release -GNinja
ninja install
./zig build test -Denable-qemu -Denable-wasmtime

# look for HTML errors
tidy -qe ../zig-cache/langref.html

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:llvm11-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