1 files changed, 36 insertions, 0 deletions
diff --git a/src/support/lombok/website/FetchCurrentVersion.java b/src/support/lombok/website/FetchCurrentVersion.java
new file mode 100644
index 00000000..ec8d833a
--- /dev/null
+++ b/src/support/lombok/website/FetchCurrentVersion.java
@@ -0,0 +1,36 @@
+package lombok.website;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class FetchCurrentVersion {
+	private FetchCurrentVersion() {}
+	
+	private static final Pattern VERSION_PATTERN = Pattern.compile("^.*<\\s*span\\s+id\\s*=\\s*[\"'](currentVersion|currentVersionFull)[\"'](?:\\s+style\\s*=\\s*[\"']display\\s*:\\s*none;?[\"'])?\\s*>\\s*([^\t<]+)\\s*<\\s*/\\s*span\\s*>.*$");
+	
+	public static void main(String[] args) throws IOException {
+		System.out.print(fetchVersionFromSite(args.length < 2 || args[1].equals("full"), new Domain(args.length < 1 ? "" : args[0])));
+	}
+	
+	public static String fetchVersionFromSite(boolean fetchFull, Domain domain) throws IOException {
+		InputStream in = domain.url("download").openStream();
+		try {
+			BufferedReader br = new BufferedReader(new InputStreamReader(in, "UTF-8"));
+			try {
+				for (String line = br.readLine(); line != null; line = br.readLine()) {
+					Matcher m = VERSION_PATTERN.matcher(line);
+					if (m.matches() && m.group(1).equals("currentVersionFull") == fetchFull) return m.group(2).replace("&quot;", "\"");
+				}
+				throw new IOException("Expected a span with id 'currentVersion'");
+			} finally {
+				br.close();
+			}
+		} finally {
+			in.close();
+		}
+	}
+}