#!/usr/bin/env bash

#

# @license Apache-2.0

#

# Copyright (c) 2017 The Stdlib 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.

# Finds files.

# shellcheck disable=SC2153

# VARIABLES #

# Determine the host kernel:

kernel=$(uname -s)

# Determine root directory:

root_dir="$(git rev-parse --show-toplevel)"

# Define the path to the build directory:

build_dir="${root_dir}/build"

# Define the folder name convention for generated files:

build_folder='build'

# Define the path to the reports directory:

reports_dir="${root_dir}/reports"

# Define the path to node modules:

node_modules="${root_dir}/node_modules"

# Define a filename pattern:

files_pattern="${FILES_PATTERN}"

if [[ -z "${files_pattern}" ]]; then

files_pattern='*'

fi

# Define the pattern for filtering files based on their path:

files_filter="${FILES_FILTER}"

if [[ -z "${files_filter}" ]]; then

files_filter='.*/.*'

fi

# FUNCTIONS #

# Finds files.

main() {

local files

# On Mac OSX, in order to use `|` and other regular expression operators, we need to use enhanced regular expression syntax (-E); see https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man7/re_format.7.html#//apple_ref/doc/man/7/re_format.

if [[ "${kernel}" == "Darwin" ]]; then

files=$(find -E "${root_dir}" -type f -name "${files_pattern}" -regex "${files_filter}" '!' -path "${root_dir}/.*" '!' -path "${node_modules}/*" '!' -path "${build_dir}/*" '!' -path "${reports_dir}/*" '!' -path "${root_dir}/**/${build_folder}/*")

else

files=$(find "${root_dir}" -regextype posix-extended -type f -name "${files_pattern}" -regex "${files_filter}" '!' -path "${root_dir}/.*" '!' -path "${node_modules}/*" '!' -path "${build_dir}/*" '!' -path "${reports_dir}/*" '!' -path "${root_dir}/**/${build_folder}/*")

fi

echo "${files}"

}

# Run main:

main