pjs/gc/boehm/leaksoup/RevisionTable.java

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2.8 KiB
Java
Executable File

/* -*- 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.*;
/**
* 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);
readEntries(dirPath);
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 void readEntries(String dirPath) throws IOException {
String entriesPath = dirPath + "CVS/Entries";
BufferedReader entries = new BufferedReader(new InputStreamReader(new FileInputStream(entriesPath)));
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();
}
}