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

86 строки
3.2 KiB
Java
Executable File

/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or 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 the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Patrick C. Beard <beard@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
import java.io.*;
import java.util.*;
/**
* Provides a way to map from a file path to its CVS revision number.
*/
public class RevisionTable {
private Hashtable revisions = new Hashtable();
public String getRevision(String path) throws IOException {
String revision = (String) revisions.get(path);
if (revision == null) {
int lastSlash = path.lastIndexOf('/');
String dirPath = path.substring(0, lastSlash + 1);
if (!readEntries(dirPath))
revisions.put(path, "");
revision = (String) revisions.get(path);
}
return revision;
}
/**
* Reads all of the entries from a CVS Entries file, and populates
* the hashtable with the revisions, keyed by file paths.
*/
private boolean readEntries(String dirPath) throws IOException {
File entriesFile = new File(dirPath + "CVS/Entries");
if (entriesFile.exists()) {
BufferedReader entries = new BufferedReader(new InputStreamReader(new FileInputStream(entriesFile)));
for (String line = entries.readLine(); line != null; line = entries.readLine()) {
if (line.charAt(0) == '/') {
int secondSlash = line.indexOf('/', 1);
String fileName = line.substring(1, secondSlash);
int thirdSlash = line.indexOf('/', secondSlash + 1);
String revision = line.substring(secondSlash + 1, thirdSlash);
revisions.put(dirPath + fileName, revision);
}
}
entries.close();
return true;
}
return false;
}
}