#!/bin/bash
#
# Copyright 2016 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.
#
setglobal USAGE = ''bazel-run.sh [<bazel option>...] <target> [ -- [<target option>]... ]''
setglobal DESCRIPTION = ''
  Builds and runs the command generated by "bazel run" in the calling
  terminal. The command is run as a grandchild of the current shell,
  not from the Bazel server. Therefore, the program will have a controlling terminal, and
  the Bazel lock is released before running the command.''

proc usage {
  echo $USAGE $DESCRIPTION > !2
}

proc die {
  echo $1
  exit 1
}

proc cleanup {
  rm $runcmd
}

test $Argc -gt 0 || do { usage; exit 1; }

setglobal runcmd = $[mktemp /tmp/bazel-run.XXXXXX] || die "Could not create tmp file"
trap "cleanup" EXIT

bazel run --script_path="$runcmd" @Argv || exit $?
test -x $runcmd || die "File $runcmd not executable"

$runcmd