i18n: Create script to create PO files for translation

Script for translators

.gitignore

@@ -5,6 +5,7 @@ build/
 src/public/app-dist/
 npm-debug.log
 yarn-error.log
+po-*/
 
 *.db
 !integration-tests/db/document.db

bin/translation.sh

@@ -0,0 +1,98 @@
+#!/usr/bin/env bash
+
+# --------------------------------------------------------------------------------------------------
+#
+# Create PO files to make easier the labor of translation.
+#
+# Info:
+# 	https://www.gnu.org/software/gettext/manual/html_node/PO-Files.html
+# 	https://docs.translatehouse.org/projects/translate-toolkit/en/latest/commands/json2po.html
+#
+# Dependencies:
+# 	jq
+# 	translate-toolkit
+# 		python-wcwidth
+#
+# Created by @hasecilu
+#
+# --------------------------------------------------------------------------------------------------
+
+stats() {
+	# Print the number of existing strings on the JSON files for each locale
+	s=$(jq 'path(..) | select(length == 2) | .[1]' "${paths[0]}/en/server.json" | wc -l)
+	c=$(jq 'path(..) | select(length == 2) | .[1]' "${paths[1]}/en/translation.json" | wc -l)
+	echo "|locale |server strings |client strings |"
+	echo "|-------|---------------|---------------|"
+	echo "|  en   |      ${s}      |     ${c}      |"
+	for locale in "${locales[@]}"; do
+		s=$(jq 'path(..) | select(length == 2) | .[1]' "${paths[0]}/${locale}/server.json" | wc -l)
+		c=$(jq 'path(..) | select(length == 2) | .[1]' "${paths[1]}/${locale}/translation.json" | wc -l)
+		echo "|  ${locale}   |      ${s}      |     ${c}      |"
+	done
+}
+
+help() {
+	echo -e "\nDescription:"
+	echo -e "\tCreate PO files to make easier the labor of translation"
+	echo -e "\nUsage:"
+	echo -e "\t./translation.sh [--stats] [--update <OPT_LOCALE>] [--update2 <OPT_LOCALE>]"
+	echo -e "\nFlags:"
+	echo -e "  --clear\n\tClear all po-* directories"
+	echo -e "  --stats\n\tPrint the number of existing strings on the JSON files for each locale"
+	echo -e "  --update <LOCALE>\n\tUpdate PO files from English and localized JSON files as source"
+	echo -e "  --update2 <LOCALE>\n\tRecover translation from PO files to localized JSON files"
+}
+
+# Main function ------------------------------------------------------------------------------------
+
+# Get script directory to set file path relative to it
+file_path="$(
+	cd -- "$(dirname "${0}")" >/dev/null 2>&1 || exit
+	pwd -P
+)"
+paths=("${file_path}/../translations/" "${file_path}/../src/public/translations/")
+locales=(cn es fr ro)
+
+if [ $# -eq 1 ]; then
+	if [ "$1" == "--clear" ]; then
+		for path in "${paths[@]}"; do
+			for locale in "${locales[@]}"; do
+				[ -d "${path}/po-${locale}" ] && rm -r "${path}/po-${locale}"
+			done
+		done
+	elif [ "$1" == "--stats" ]; then
+		stats
+	elif [ "$1" == "--update" ]; then
+		# Update PO files from English and localized JSON files as source
+		for path in "${paths[@]}"; do
+			for locale in "${locales[@]}"; do
+				json2po -t "${path}/en" "${path}/${locale}" "${path}/po-${locale}"
+			done
+		done
+	elif [ "$1" == "--update2" ]; then
+		# Recover translation from PO files to localized JSON files
+		for path in "${paths[@]}"; do
+			for locale in "${locales[@]}"; do
+				po2json -t "${path}/en" "${path}/po-${locale}" "${path}/${locale}"
+			done
+		done
+	else
+		help
+	fi
+elif [ $# -eq 2 ]; then
+	if [ "$1" == "--update" ]; then
+		locale="$2"
+		for path in "${paths[@]}"; do
+			json2po -t "${path}/en" "${path}/${locale}" "${path}/po-${locale}"
+		done
+	elif [ "$1" == "--update2" ]; then
+		locale="$2"
+		for path in "${paths[@]}"; do
+			po2json -t "${path}/en" "${path}/po-${locale}" "${path}/${locale}"
+		done
+	else
+		help
+	fi
+else
+	help
+fi