push-all.sh.tpl

#!/usr/bin/env bash
# Copyright 2017 The Bazel 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.

set -eu
function guess_runfiles() {
    if [ -d ${BASH_SOURCE[0]}.runfiles ]; then
        # Runfiles are adjacent to the current script.
        echo "$( cd ${BASH_SOURCE[0]}.runfiles && pwd )"
    else
        # The current script is within some other script's runfiles.
        mydir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
        echo $mydir | sed -e 's|\(.*\.runfiles\)/.*|\1|'
    fi
}

RUNFILES="${PYTHON_RUNFILES:-$(guess_runfiles)}"

PIDS=()
function async() {
    # Launch the command asynchronously and track its process id.
    PYTHON_RUNFILES=${RUNFILES} "$@" &
    PIDS+=($!)
}

SEQUENTIAL="%{sequential}"
if [ -z "${SEQUENTIAL}" ]; then
  %{async_push_statements}
  # Wait for all of the subprocesses, failing the script if any of them failed.
  if [ "${#PIDS[@]}" != 0 ]; then
    for pid in ${PIDS[@]}; do
      wait ${pid}
    done
  fi
else
  %{push_statements}
fi