Add a tool to generate locales_config.xml

tools/GenerateLocaleConfig.java

@@ -0,0 +1,44 @@
+// Run: java tools/GenerateLocaleConfig.java
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+
+
+public class GenerateLocaleConfig{
+	public static void main(String[] args) throws IOException{
+		File dir=new File("../mastodon/src/main/res/");
+		if(!dir.exists())
+			dir=new File("mastodon/src/main/res");
+		if(!dir.exists())
+			throw new RuntimeException("Please run from project directory (can't find mastodon/src/main/res)");
+
+		ArrayList<String> locales=new ArrayList<>();
+		locales.add("en");
+
+		for(File file:dir.listFiles()){
+			String name=file.getName();
+			if(file.isDirectory() && name.startsWith("values-")){
+				if(new File(file, "strings.xml").exists()){
+					locales.add(name.substring(name.indexOf('-')+1).replace("-r", "-"));
+				}
+			}
+		}
+
+		locales.sort(String::compareTo);
+		try(OutputStreamWriter writer=new OutputStreamWriter(new FileOutputStream(new File(dir, "xml/locales_config.xml")), StandardCharsets.UTF_8)){
+			writer.write("""
+					<?xml version="1.0" encoding="utf-8"?>
+					<locale-config xmlns:android="http://schemas.android.com/apk/res/android">
+					""");
+			for(String locale : locales){
+				writer.write("\t<locale android:name=\"");
+				writer.write(locale);
+				writer.write("\"/>\n");
+			}
+			writer.write("</locale-config>");
+		}
+	}
+}