DistroHopper/auto-translate

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#!/usr/bin/env bash
#
# Copyright (c) 2023 darkmaster @grm34
#
# This script automatically translates base language strings and adds
# them into the various translations (original will be used on error).
# It also removes duplicate strings and rearranges them alphabetically.
_sort_strings() {
# RM duplicate strings from an array and sorts them alphabetically.
# Usage: _sort_strings "$@" (array of strings)
# Returns: $sorted_strings (array)
local string strings
declare -A strings
for string in "${@}"; do
[[ $string ]] && IFS=" " strings["${string:- }"]=1
done
# shellcheck disable=SC2207
IFS=$'\n' sorted_strings=($(sort <<< "${!strings[*]}"))
}
_clean_cfg_files() {
# RM duplicates lines and sorts them alphabetically.
# Usage: _clean_cfg_files "$@" (array of files)
local file
for file in "$@"; do
mapfile -t strings < "$file"
_sort_strings "${strings[@]}"
printf "%s\n" "${sorted_strings[@]}" > "$file"
done
}
_get_strings_from_cfg() {
# Grabs strings from CFG files.
# Usage: _get_strings_from_cfg "$@" (array of files)
# Returns: $<language_code>_strings $cfg_list (arrays)
local file name
for file in "$@"; do
name=${file##*/}; name="${name/.cfg/_strings}"
mapfile -t "$name" < "$file"
[[ $name != en_strings ]] && cfg_list+=("$name")
done
}
_get_string_data() {
# Grabs string name and string value
# Returns: $data (array)
IFS=$'\n' read -d "" -ra data <<< "${1//=/$'\n'}"
data[1]=${data[1]//\"}
}
_translate_string() {
# Usage: _translate_string "string" "language code"
# Returns: $translated (string)
translated="$(curl -s https://api-free.deepl.com/v2/translate \
-d auth_key=f1414922-db81-5454-67bd-9608cdca44b3:fx \
-d "text=$1" -d "target_lang=${2^^}" \
| grep -o '"text":"[^"]*' | grep -o '[^"]*$')"
}
_translate_and_add_missing_strings_into_cfg() {
# Translates then write missing strings from base language
# into the various translation files (from $cfg_list).
local line language trad_strings
for line in "${en_strings[@]:?}"; do
_get_string_data "$line"
for language in "${cfg_list[@]}"; do
declare -n trad_strings="$language"
if [[ "${trad_strings[*]}" != *"${data[0]}="* ]]; then
_translate_string "${data[1]}" "${language/_strings}"
[[ -n $translated ]] && line="${data[0]}=\"${translated}\""
[[ -n $translated ]] && note="translated" || note="original"
trad_strings+=("$line"); file="${language/_strings/.cfg}"
printf "%s\n" "${trad_strings[@]}" > "lang/$file"
echo "=> ${data[0]} (${note}) added into $file"
fi
done
done
}
# Run auto-translate.
if [[ $1 == dh ]]; then
echo "Running auto-translate (this could take a while)..."
_clean_cfg_files lang/*.cfg
_get_strings_from_cfg lang/*.cfg
_translate_and_add_missing_strings_into_cfg
_clean_cfg_files lang/*.cfg
[[ $note ]] && echo "==> done" || echo "==> nothing to translate"
else
echo "ERROR: you must specify 'dh' as argument"
fi