scripts/list_components

#!/bin/bash
#
# Copyright 2017-present the Material Components for iOS 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.

# List all component directories.
#
# If --public (-p) is specified, list public components.
# If --private (-P) is specified, list private components.
#
# If nothing is specified, act as if --public were specified.

readonly SCRIPTS_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
readonly ROOT_DIR="$SCRIPTS_DIR/.."

# Detect if the output is a terminal.
if [ -t 1 ]; then
  terminal=0
else
  terminal=1
fi

# Parse command-line arguments.
#
# Note that we're following the command-line exit status convention of zero
# to mean "success".
private=1
public=1
one_per_line=$terminal
for i in "$@"; do
  case $i in
    -P|--private)
      private=0
      shift
      ;;
    -p|--public)
      public=0
      shift
      ;;
    *)
      echo "Unknown option $i, aborting."
      exit -1
      ;;
  esac
done

# If neither are set, list public components.
if [[ "$private" -eq 1 && "$public" -eq 1 ]]; then
  public=0
fi

dirs=()

if [ "$public" -eq 0 ]; then
  dirs[0]="$ROOT_DIR/components"
fi

if [ "$private" -eq 0 ]; then
  dirs[1]="$ROOT_DIR/components/private"
fi

readonly COMPONENTS=$(find ${dirs[*]} -depth 1 -type d ! \( -regex '.*/private$' -or -regex '.*/docs$' \))
if [ $terminal -eq 0 ]; then
  for i in $COMPONENTS; do
    echo $i
  done
else
  echo $COMPONENTS
fi