#!/usr/bin/env bash

BIN_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
source "$BIN_DIR/../lib/dade-common"

set -Eeuo pipefail

if [ $# -ne 1 ] || [ "$1" == "-?" ] || [ "$1" == "-h" ] || [ "$1" == "--help" ]; then
  cat <<-'USAGE'
Usage: buck-out <target>

This tool will print the output file or directory of the specified target. The
form of the <target> matches that of `buck query` for a single target. e.g.

$ buck-out //ledger-client/python:VERSION
/Users/user/code/da/dev-env/../buck-out/gen/ledger-client/python/VERSION/VERSION

WARNING! Instead of using this tool in scripts or Makefiles, instead use `--out`
argument to make Buck copy the resulting file to a location of your choosing:

$ buck build --out some-path //ledger-client/python:VERSION
USAGE
  exit 0
else
  TARGET="$1"
fi

buck build "$TARGET"
buck targets -v 0 --json --show-full-output "$TARGET" \
    | jq -r '.[0]["buck.outputPath"]'