#!/usr/bin/env bash
# Copyright 2021 The Kubernetes Authors.
#
# 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 -o errexit
set -o nounset
set -o pipefail

REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../../.." && pwd -P)"
cd $REPO_ROOT

# BSD sed doesn't have --version, and needs + instead of /
# GNU sed deprecated and removed +
desired_perm="/111"
# we're not actually running a search so SC2185 doesn't apply
# shellcheck disable=SC2185
if ! find --version >/dev/null 2>&1; then
  desired_perm="+111"
fi

echo "Checking .sh files permission..."
# find all files named *.sh (approximate shell script detection ...)
# - ignoring .git
# - that are not executable by all
files=$(find . -type f -name '*.sh' \
  -not -perm "${desired_perm}" \
  -not \( \
    \( \
      -path './.git/*' \
      -o -path './node_modules/*' \
      -o -path './_bin/*' \
    \) -prune \
  \))

if [[ -n "${files}" ]]; then
  echo "ERROR: the following file(s) cannot be executed:"
  echo "${files}"
  echo
  echo "Please run 'make update-file-perms'"
  exit 1
fi
