.kokoro

#!/bin/bash
#
# Copyright 2017-present The Material Motion Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Fail on any error.
set -e

# Display commands to stderr.
set -x

KOKORO_RUNNER_VERSION="v4.*"
BAZEL_VERSION="0.20.0"

# xcode-select's the provided xcode version.
# Usage example:
#     select_xcode 9.2.0
select_xcode() {
  desired_version="$1"
  if [ -z "$desired_version" ]; then
    return # No Xcode version to select.
  fi

  xcodes=$(ls /Applications/ | grep "Xcode")
  for xcode_path in $xcodes; do
    xcode_version=$(cat /Applications/$xcode_path/Contents/version.plist \
      | grep "CFBundleShortVersionString" -A1 \
      | grep string \
      | cut -d'>' -f2 \
      | cut -d'<' -f1)
    xcode_version_as_number="$(version_as_number $xcode_version)"

    if [ "$xcode_version_as_number" -ne "$(version_as_number $desired_version)" ]; then
      continue
    fi

    sudo xcode-select --switch /Applications/$xcode_path/Contents/Developer
    xcodebuild -version

    # Resolves the following crash when switching Xcode versions:
    # "Failed to locate a valid instance of CoreSimulatorService in the bootstrap"
    launchctl remove com.apple.CoreSimulator.CoreSimulatorService || true

    break
  done
}

fix_bazel_imports() {
  if [ -z "$KOKORO_BUILD_NUMBER" ]; then
    repo_prefix=""
  else
    repo_prefix="github/repo/"
  fi

  # Fixes a bug in bazel where objc_library targets have a _ prefix.
  find "${repo_prefix}tests/unit" -type f -name '*.swift' -exec sed -i '' -E "s/import Motion(.+)/import _Motion\1/" {} + || true
  stashed_dir=$(pwd)
  reset_imports() {
    # Undoes our source changes from above.
    find "${stashed_dir}/${tests_dir_prefix}tests/unit" -type f -name '*.swift' -exec sed -i '' -E "s/import _Motion(.+)/import Motion\1/" {} + || true
  }
  trap reset_imports EXIT
}

run_bazel() {
  echo "Running bazel builds..."

  fix_bazel_imports

  if [ -n "$KOKORO_BUILD_NUMBER" ]; then
    bazel version
    use_bazel.sh "$BAZEL_VERSION"
    bazel version

    select_xcode "$XCODE_VERSION"

    # Move into our cloned repo
    cd github/repo
  fi

  # Run against whichever Xcode is currently selected.
  selected_xcode_developer_path=$(xcode-select -p)
  selected_xcode_contents_path=$(dirname "$selected_xcode_developer_path")

  xcode_version=$(cat "$selected_xcode_contents_path/version.plist" \
    | grep "CFBundleShortVersionString" -A1 \
    | grep string \
    | cut -d'>' -f2 \
    | cut -d'<' -f1)

  bazel clean
  bazel test //... --xcode_version $xcode_version --ios_minimum_os=8.0 --ios_multi_cpus=i386,x86_64
}

run_bazel

echo "Success!"