Initial support for localization and pluralization with go-i18n-JSON-v2 format

tools/migrate_locales.sh

@@ -0,0 +1,145 @@
+#!/bin/bash
+
+# Copyright 2024 The Forgejo Authors. All rights reserved.
+# SPDX-License-Identifier: MIT
+
+if [ -z "$1" ] || [ -z "$2" ]
+then
+	echo "USAGE: $0 section key [key1 [keyN]]"
+	exit 1
+fi
+
+if ! [ -d ../options/locale_next ]
+then
+	echo 'Call this script from the `tools` directory.'
+	exit 1
+fi
+
+destsection="$1"
+keyJSON="$destsection.$2"
+key1=""
+keyN=""
+if [ -n "$3" ]
+then
+	key1="$3"
+else
+	key1="$2"
+fi
+if [ -n "$4" ]
+then
+	keyN="$4"
+fi
+
+cd ../options/locale
+
+# Migrate the string in one file.
+function process() {
+	file="$1"
+	exec 3<$file
+
+	val1=""
+	valN=""
+	cursection=""
+	line1=0
+	lineN=0
+	lineNumber=0
+
+	# Parse the file
+	while read -u 3 line
+	do
+		((++lineNumber))
+		if [[ $line =~ ^\[[-._a-zA-Z0-9]+\]$ ]]
+		then
+			cursection="${line#[}"
+			cursection="${cursection%]}"
+		elif [ "$cursection" = "$destsection" ]
+		then
+			key="${line%%=*}"
+			value="${line#*=}"
+			key="$(echo $key)"  # Trim leading/trailing whitespace
+			value="$(echo $value)"
+
+			if [ "$key" = "$key1" ]
+			then
+				val1="$value"
+				line1=$lineNumber
+			fi
+			if [ -n "$keyN" ] && [ "$key" = "$keyN" ]
+			then
+				valN="$value"
+				lineN=$lineNumber
+			fi
+
+			if [ -n "$val1" ] && ( [ -n "$valN" ] || [ -z "$keyN" ] )
+			then
+				# Found all desired strings
+				break
+			fi
+		fi
+	done
+
+	if [ -n "$val1" ] || [ -n "$valN" ]
+	then
+		localename="${file#locale_}"
+		localename="${localename%.ini}"
+		localename="${localename%-*}"
+
+		if [ "$file" = "locale_en-US.ini" ]
+		then
+			# Delete migrated string from source file
+			if [ $line1 -gt 0 ] && [ $lineN -gt 0 ] && [ $lineN -ne $line1 ]
+			then
+				sed -i "${line1}d;${lineN}d" "$file"
+			elif [ $line1 -gt 0 ]
+			then
+				sed -i "${line1}d" "$file"
+			elif [ $lineN -gt 0 ]
+			then
+				sed -i "${lineN}d" "$file"
+			fi
+		fi
+
+		# Write JSON
+		jsonfile="../locale_next/${file/.ini/.json}"
+
+		pluralform="other"
+		oneform="one"
+		case $localename in
+			"be" | "bs" | "cnr" | "csb" | "hr" | "lt" | "pl" | "ru" | "sr" | "szl" | "uk" | "wen")
+				# These languages have no "other" form and use "many" instead.
+				pluralform="many"
+				;;
+			"ace" | "ay" | "bm" | "bo" | "cdo" | "cpx" | "crh" | "dz" | "gan" | "hak" | "hnj" | "hsn" | "id" | "ig" | "ii" | "ja" | "jbo" | "jv" | "kde" | "kea" | "km" | "ko" | "kos" | "lkt" | "lo" | "lzh" | "ms" | "my" | "nan" | "nqo" | "osa" | "sah" | "ses" | "sg" | "son" | "su" | "th" | "tlh" | "to" | "tok" | "tpi" | "tt" | "vi" | "wo" | "wuu" | "yo" | "yue" | "zh")
+				# These languages have no singular form.
+				oneform=""
+				;;
+			*)
+				;;
+		esac
+
+		content=""
+		if [ -z "$keyN" ]
+		then
+			content="$(jq --arg val "$val1" ".$keyJSON = \$val" < "$jsonfile")"
+		else
+			object='{}'
+			if [ -n "$val1" ] && [ -n "$oneform" ]
+			then
+				object=$(jq --arg val "$val1" ".$oneform = \$val" <<< "$object")
+			fi
+			if [ -n "$valN" ]
+			then
+				object=$(jq --arg val "$valN" ".$pluralform = \$val" <<< "$object")
+			fi
+			content="$(jq --argjson val "$object" ".$keyJSON = \$val" < "$jsonfile")"
+		fi
+		jq . <<< "$content" > "$jsonfile"
+	fi
+}
+
+for file in *.ini
+do
+	process "$file" &
+done
+wait
+