#!/usr/bin/env bash

set -e

echo "::group::changed-files-from-source-file"

RAW_FILES=()

if [[ -n $INPUT_FILES_FROM_SOURCE_FILE ]]; then
  for file in $INPUT_FILES_FROM_SOURCE_FILE
  do
    while read -r fileName; do
      RAW_FILES+=("$fileName")
    done <"$file"
  done
fi

IFS=" " read -r -a CLEAN_FILES <<< "$(echo "${RAW_FILES[*]}" | tr "\r\n" "\n" | tr " " "\n" | sort -u | awk -v d=" " '{s=(NR==1?s:s d)$0}END{print s}')"

IFS=" " read -r -a CLEAN_INPUT_FILES <<< "$(echo "${INPUT_FILES}" | tr "\r\n" "\n" | tr " " "\n" | sort -u | awk -v d=" " '{s=(NR==1?s:s d)$0}END{print s}')"

FILES=("${CLEAN_FILES[@]}" "${CLEAN_INPUT_FILES[@]}")

IFS=" " read -r -a ALL_UNIQUE_FILES <<< "$(echo "${FILES[@]}" | tr "\r\n" "\n" | tr " " "\n" | sort -u | awk -v d=" " '{s=(NR==1?s:s d)$0}END{print s}')"

echo "Input files: ${ALL_UNIQUE_FILES[*]}"

echo "::set-output name=files::${ALL_UNIQUE_FILES[*]}"

echo "::endgroup::"