#!/bin/bash
# Run with -e so the script will fail if any of the steps fail.
set -e

# This script can be cached and used on machines other than the one where it was created. That
# means it can't contain any absolute filepaths. Expose the absolute filepath of the root of
# the project as $BUCK_REAL_ROOT, determined at runtime.
BUCK_REAL_ROOT="$(cd `dirname $0`/<path_back_to_root>; pwd)"
BUCK_TMP_ROOT=`mktemp -d -t sh_binary.XXXXXXXXXX`
OLD_CWD=`pwd`
trap "chmod -R 755 $BUCK_TMP_ROOT && rm -rf $BUCK_TMP_ROOT" EXIT HUP INT TERM

# Navigate to the tmp directory.
cd $BUCK_TMP_ROOT

# Symlink the resources to the $BUCK_TMP_ROOT directory.
SCRIPT_TO_RUN=<script_to_run>
SYMLINK_PATHS=(
<resources:{x|  <x><\n>}>
  "$SCRIPT_TO_RUN"
)
for path in "${SYMLINK_PATHS[@]}"; do
  mkdir -p "$(dirname "$path")"
  ln -s "$BUCK_REAL_ROOT/$path" "$BUCK_TMP_ROOT/$path"
done

# Navigate back to the previous directory
cd $OLD_CWD

find $BUCK_TMP_ROOT -type d -exec chmod 555 {} \;
find $BUCK_TMP_ROOT -type f -exec chmod 444 {} \;
BUCK_PROJECT_ROOT=$BUCK_TMP_ROOT "$BUCK_TMP_ROOT/$SCRIPT_TO_RUN" "$@"