gecko-dev/gc/boehm/leaksoup/tracesoup.java

/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * The contents of this file are subject to the Netscape Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * The Original Code is Mozilla Communicator client code, released
 * March 31, 1998.
 *
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation. All
 * Rights Reserved.
 *
 * Contributor(s):
 *
 * Patrick C. Beard <beard@netscape.com>
 *
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU Public License (the "GPL"), in which case the
 * provisions of the GPL are applicable instead of those above.
 * If you wish to allow use of your version of this file only
 * under the terms of the GPL and not to allow others to use your
 * version of this file under the NPL, indicate your decision by
 * deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL.  If you do not delete
 * the provisions above, a recipient may use your version of this
 * file under either the NPL or the GPL.
 */

import java.io.*;
import java.util.*;

public class tracesoup {
	/**
	 * Set by the "-blame" option when generating trace reports.
	 */
	static boolean USE_BLAME = false;
	
	public static void main(String[] args) {
		if (args.length == 0) {
			System.out.println("usage:  tracesoup trace");
			System.exit(1);
		}
		
		String inputName = null;

		for (int i = 0; i < args.length; i++) {
			String arg = args[i];
			if (arg.charAt(0) == '-') {
				if (arg.equals("-blame"))
					USE_BLAME = true;
			} else {
				inputName = arg;
			}
		}
		
		String outputName = inputName + ".html";

		try {
			PrintWriter writer = new PrintWriter(new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outputName))));
			writer.println("<TITLE>" + outputName + "</TITLE>");
			writer.println("<PRE>");
			
			Hashtable fileTables = new Hashtable();
			BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(inputName)));
			String line = reader.readLine();
			while (line != null) {
				if (line.length() > 0) {
					// have to quote '<' & '>' characters.
					if (line.charAt(0) == '<')
						line = quoteTags(line);
					// lines containing square brackets need to be wrapped with <A HREF="..."></A>.
					int leftBracket = line.indexOf('[');
					if (leftBracket >= 0)
						line = getFileLocation(fileTables, line);
				}
				writer.println(line);
				line = reader.readLine();
			}
			reader.close();
			
			writer.println("</PRE>");
			writer.close();
			
			// quit the application.
			System.exit(0);
		} catch (Exception e) {
			e.printStackTrace(System.err);
		}
	}

	/**
	 * Simply replaces instances of '<' with "&LT;" and '>' with "&GT;".
	 */
	static String quoteTags(String str) {
		int length = str.length();
		StringBuffer buf = new StringBuffer(length);
		for (int i = 0; i < length; ++i) {
			char ch = str.charAt(i);
			switch (ch) {
			case '<':
				buf.append("&LT;");
				break;
			case '>':
				buf.append("&GT;");
				break;
			default:
				buf.append(ch);
				break;
			}
		}
		return buf.toString();
	}
	

	static final String MOZILLA_BASE = "mozilla/";
	static final String LXR_BASE = "http://lxr.mozilla.org/seamonkey/source/";
	static final String BONSAI_BASE = "http://cvs-mirror.mozilla.org/webtools/bonsai/cvsblame.cgi?file=mozilla/";
	
	static String getFileLocation(Hashtable fileTables, String line) throws IOException {
		int leftBracket = line.indexOf('[');
		if (leftBracket == -1)
			return line;
		int rightBracket = line.indexOf(']', leftBracket + 1);
		if (rightBracket == -1)
			return line;
		int comma = line.indexOf(',', leftBracket + 1);
		String macPath = line.substring(leftBracket + 1, comma);
		String path = macPath.replace(':', '/');
		
		// compute the line number in the file.
		int offset = 0;
		try {
			offset = Integer.parseInt(line.substring(comma + 1, rightBracket));
		} catch (NumberFormatException nfe) {
			return line;
		}
		FileTable table = (FileTable) fileTables.get(path);
		if (table == null) {
			table = new FileTable("/" + path);
			fileTables.put(path, table);
		}
		int lineNumber = 1 + table.getLine(offset);

		// compute the URL of the file.
		int mozillaIndex = path.indexOf(MOZILLA_BASE);
		String locationURL;
		if (mozillaIndex > -1)
			locationURL = (USE_BLAME ? BONSAI_BASE : LXR_BASE) + path.substring(path.indexOf(MOZILLA_BASE) + MOZILLA_BASE.length());
		else
			locationURL = "file:///" + path;
		
		// if using blame, hilite the line number of the call.
		if (USE_BLAME) {
			locationURL += "&mark=" + lineNumber;
			lineNumber -= 10;
		}
		
		return "<A HREF=\"" + locationURL + "#" + lineNumber + "\"TARGET=\"SOURCE\">" + line.substring(0, leftBracket) + "</A>";
	}
}