1 files changed, 131 insertions, 0 deletions
diff --git a/src/support/lombok/eclipse/dependencies/DownloadEclipseDependencies.java b/src/support/lombok/eclipse/dependencies/DownloadEclipseDependencies.java
new file mode 100644
index 00000000..06e26bb6
--- /dev/null
+++ b/src/support/lombok/eclipse/dependencies/DownloadEclipseDependencies.java
@@ -0,0 +1,131 @@
+package lombok.eclipse.dependencies;
+
+import java.io.BufferedInputStream;
+import java.io.File;
+import java.io.FilenameFilter;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+import java.util.Arrays;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * Download eclipse bundles.
+ */
+public class DownloadEclipseDependencies {
+	
+	public static void main(String[] args) throws IOException {
+		String target = args[0];
+		String eclipseVersion = args[1];
+		String updatePage = args[2];
+		String[] packages = Arrays.copyOfRange(args, 3, args.length);
+		
+		String pluginTarget = target + "/" + eclipseVersion + "/plugins/";
+		
+		String indexData = readUrlAsString(updatePage);
+		
+		for (String pkg : packages) {
+			Matcher matcher = Pattern.compile("(" + pkg.replace(".", "\\.") + "_.*?\\.jar)").matcher(indexData);
+			if (matcher.find()) {
+				String path = matcher.group(1);
+				
+				try {
+					downloadFile(path, updatePage, pluginTarget);
+				} catch (Exception e) {
+				}
+				try {
+					int index = path.lastIndexOf("_");
+					String source = path.substring(0, index) + ".source" + path.substring(index);
+					downloadFile(source, updatePage, pluginTarget);
+				} catch (Exception e) {
+				}
+			} else {
+				System.out.println("Bundle \"" + pkg + "\" not found");
+			}
+		}
+		
+		writeEclipseLibrary(target, eclipseVersion);
+	}
+	
+	private static String readUrlAsString(String url) throws MalformedURLException, IOException {
+		InputStream in = getStreamForUrl(url);
+		
+		StringBuilder sb = new StringBuilder();
+		
+		int bufferSize = 1024;
+		char[] buffer = new char[bufferSize];
+		InputStreamReader reader = new InputStreamReader(in, "UTF-8");
+		for (int count = 0;  (count = reader.read(buffer, 0, bufferSize)) > 0;) {
+			sb.append(buffer, 0, count);
+		}
+		return sb.toString();
+	}
+	
+	private static void downloadFile(String filename, String repositoryUrl, String target) throws IOException {
+		Files.createDirectories(Paths.get(target));
+		Path targetFile = Paths.get(target, filename);
+		if (Files.exists(targetFile)) {
+			System.out.println("File '" + filename + "' already exists");
+			return;
+		}
+		System.out.print("Downloading '" + filename + "'... ");
+		try {
+			Files.copy(getStreamForUrl(repositoryUrl + filename), targetFile, StandardCopyOption.REPLACE_EXISTING);
+			System.out.println("[done]");
+		} catch(IOException e) {
+			System.out.println("[error]");
+		}
+	}
+	
+	private static InputStream getStreamForUrl(String url) throws IOException, MalformedURLException {
+		HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
+		connection.setRequestProperty("User-Agent", "lombok");
+		connection.setRequestProperty("Accept", "*/*");
+		InputStream in = new BufferedInputStream(connection.getInputStream());
+		return in;
+	}
+
+	private static void writeEclipseLibrary(String target, String eclipseVersion) throws IOException {
+		StringBuilder sb = new StringBuilder();
+		sb.append("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n");
+		sb.append("<eclipse-userlibraries version=\"2\">\n");
+		sb.append("<library name=\"");
+		sb.append(eclipseVersion);
+		sb.append("\" systemlibrary=\"false\">\n");
+		
+		File[] files = new File(new File(target, eclipseVersion), "plugins").listFiles(new FilenameFilter() {
+			@Override public boolean accept(File dir, String name) {
+				return name.endsWith(".jar") && !name.contains(".source_");
+			}
+		});
+		Arrays.sort(files);
+		
+		for (File file : files) {
+			sb.append("<archive path=\"");
+			sb.append(file.getAbsolutePath());
+			sb.append("\"");
+			
+			String path = file.getAbsolutePath();
+			int index = path.lastIndexOf("_");
+			
+			sb.append(" source=\"");
+			sb.append(path.substring(0, index) + ".source" + path.substring(index));
+			sb.append("\"");
+			
+			sb.append(" />\n");
+		}
+		
+		sb.append("</library>\n");
+		sb.append("</eclipse-userlibraries>\n");
+		
+		Files.writeString(Paths.get(target, eclipseVersion + ".userlibraries"), sb.toString());
+	}
+}