#!/usr/bin/env bash
# Copyright 2017 Google Inc.
# All Rights Reserved.
#
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
#     * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#     * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

set -eu

if [ "${TRAVIS_OS_NAME}" != linux ]; then
    echo "Not a Linux build; skipping installation"
    exit 0
fi


if [ "${TRAVIS_SUDO}" = "true" ]; then
    echo "deb [arch=amd64] http://storage.googleapis.com/bazel-apt stable jdk1.8" | \
        sudo tee /etc/apt/sources.list.d/bazel.list
    curl https://bazel.build/bazel-release.pub.gpg | sudo apt-key add -
    sudo apt-get update && sudo apt-get install -y gcc-4.9 g++-4.9 clang-3.9
    sudo wget https://github.com/bazelbuild/bazel/releases/download/0.26.1/bazel-0.26.1-installer-linux-x86_64.sh
    sudo chmod +x bazel-0.26.1-installer-linux-x86_64.sh
    sudo ./bazel-0.26.1-installer-linux-x86_64.sh
elif [ "${CXX}" = "clang++" ]; then
    # Use ccache, assuming $HOME/bin is in the path, which is true in the Travis build environment.
    ln -sf /usr/bin/ccache $HOME/bin/${CXX};
    ln -sf /usr/bin/ccache $HOME/bin/${CC};
fi