Cleanup conflicted Nextcloud files

cleanup-conflicts.sh

#!/usr/bin/env bash
# shellcheck shell=bash

# set -x
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

# Header logging
e_header() {
    printf "\n$(tput setaf 7)%s$(tput sgr0)\n" "$@"
}
# debug logging
e_debug() {
    printf "$(tput setaf 2)%s$(tput sgr0)\n" "$@"
}

# Success logging
e_success() {
    printf "$(tput setaf 64)✓ %s$(tput sgr0)\n" "$@"
}

# Error logging
e_error() {
    printf "$(tput setaf 1)x %s$(tput sgr0)\n" "$@"
}

# Warning logging
e_warning() {
    printf "$(tput setaf 136)! %s$(tput sgr0)\n" "$@"
}

dir_exists() {
	if [ -d "$1" ]; then
		return 0
	fi
	return 1
}

file_exists() {
	if [ -e "$1" ]; then
		return 0
	fi
	return 1
}

function check_ext {

	fullpath="$1"

	filename="${fullpath##*/}"                      # Strip longest match of */ from start
	dir="${fullpath:0:${#fullpath} - ${#filename}}" # Substring from 0 thru pos of filename
	base="${filename%.[^.]*}"                       # Strip shortest match of . plus at least one non-dot char from end
	ext="${filename:${#base} + 1}"                  # Substring from len of base thru end
	if [[ -z "$base" && -n "$ext" ]]; then          # If we have an extension and no base, it's really the base
		base=".$ext"
		ext=""
	fi

	corrected_base=$(echo "$base" | cut -d' ' -f1)

	# echo -e "$fullpath:\n\tdir  = \"$dir\"\n\tbase = \"$base\"\n\text  = \"$ext\"\n\tcorrected  = \"$corrected_base\""

	if [[ -n "$ext" ]]; then
		ext=".$ext"
	fi

	echo "$dir$corrected_base$ext"
}

DRY_RUN=1
INDEX_FILE="$DIR/index.txt"
INDEX_ARRAY=[]
count=0
DIRECTORY_OPTION=""

# I want a file with the files in for reference
function add_file_to_index {
    echo "$1" >> "$INDEX_FILE"
}

function add_directory_to_index {
  find "$DIRECTORY_OPTION" -name '*conflict*' -type f -print0 | while read -d '' -r file; do
    add_file_to_index "$file"
  done
}

function clean {
  rm  "$INDEX_FILE"
  touch "$INDEX_FILE"
}

function parse_index {
  IFS=$'\n' read -d '' -r -a INDEX_ARRAY < "$INDEX_FILE"
  TOTAL_IMAGES=${#INDEX_ARRAY[@]}
}

function usage {
	echo 'Usage: cleanup-conflicts.sh [-e] -d /path/to/files'
}

function process_files {

  for conflicted_file in "${INDEX_ARRAY[@]}"; do

	echo
	e_debug "conflicted_file: $conflicted_file"

	ORIG_FILENAME=$(check_ext "$conflicted_file")
	e_debug "orig = $ORIG_FILENAME"

	# stat -f"%m" gives you the modification time on OSX
	e_debug "stat conflicted"
	CONFLICTED_FILE_MOD_TIME=$(stat -f"%m" "$conflicted_file")
	e_debug "stat orig"
	ORIG_FILE_MOD_TIME=$(stat -f"%m" "$ORIG_FILENAME")

	if [[ CONFLICTED_FILE_MOD_TIME -gt ORIG_FILE_MOD_TIME ]]; then
		e_success "conflicted_file is newer"
		# so we want to remove the original file and 
		# replace it with the conflited file with the right name
		if [ "$DRY_RUN" = 1 ]; then
			e_warning "would exec rm $ORIG_FILENAME"
			e_warning "would exec mv $conflicted_file $ORIG_FILENAME"
		else
			rm "$ORIG_FILENAME"
			mv "$conflicted_file" "$ORIG_FILENAME"
			((count++))
		fi
	fi
  done
}

while [ "$1" != "" ]; do
  case $1 in
    -d | --directory )
      shift;
      DIRECTORY_OPTION="$1"
      ;;
    -e | --execute )
      DRY_RUN=0
      ;;
    -h | --help )
      usage;
      exit 0
      ;;
    * )
    usage
    exit 1
  esac
  shift
done

if ! dir_exists "$DIRECTORY_OPTION"; then
	e_error "$DIRECTORY_OPTION does not exist, did you set the -d param correctly?"
	exit 255
fi

e_header "Starting conflicting file cleanup"
clean
add_directory_to_index
parse_index
process_files
e_debug "TOTAL CONFLICTS: $TOTAL_IMAGES"
e_debug "TOTAL FIXED: $count"

BTW to make it work on Unix/Linux, you need to use stat -c %Y instead of stat -f"%m". Just change that and it should work. (It could also be made really portable/cross-platform compatible with an if as shown in the Stackexchange answer, FYI.)