Fix encoding of files to target format

fix-encoding.sh

#!/usr/bin/env bash

readonly TARGET_ENCODING='UTF-8' # unicode
readonly FILE_EXTENSION='srt'
# readonly TARGET_ENCODING='UTF-16'

files=$(find . -type f -iname "*.$FILE_EXTENSION")
for file in $files
do
  echo "Processing \"$file\"."

  full_path=$(readlink -e "$file")
  echo "Full path: \"$full_path\"."

  if ! mime_name=$(file --brief --mime "$full_path"); then
    >&2 echo '❌ Could not read mime name.'
    continue
  fi
  echo "Mime: \"$mime_name\"."

  if ! file_format=$(echo "$mime_name" | sed -e "s/.*[ ]charset=//"); then
    >&2 echo '❌ Could not extract file format.'
    continue
  fi
  echo "File format: \"$file_format\"."

  temp_file="$(uuidgen)"
  if ! iconv \
    -f "$file_format" \
    -t "$TARGET_ENCODING" \
    -o "$temp_file" \
    "$full_path"; then
    >&2 echo '❌ Could not fix encoding.'
    rm -f "$temp_file"
    continue
  fi

  mv "$temp_file" "$full_path"
done