Mercurial > hg4j
diff src/org/tmatesoft/hg/internal/ManifestEntryBuilder.java @ 538:dd4f6311af52
Commit: first working version
author | Artem Tikhomirov <tikhomirov.artem@gmail.com> |
---|---|
date | Tue, 05 Feb 2013 22:30:21 +0100 |
parents | test/org/tmatesoft/hg/tools/ManifestEntryBuilder.java@4b97847d0b2d |
children | 7c0d2ce340b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/org/tmatesoft/hg/internal/ManifestEntryBuilder.java Tue Feb 05 22:30:21 2013 +0100 @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2012 TMate Software Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * For information on how to redistribute this software under + * the terms of a license other than GNU General Public License + * contact TMate Software at support@hg4j.com + */ +package org.tmatesoft.hg.internal; + +import java.io.ByteArrayOutputStream; + +import org.tmatesoft.hg.core.Nodeid; + +/** + * Create binary manifest entry ready to write down into 00manifest.i + * <p>Usage: + * <pre> + * ManifestEntryBuilder mb = new ManifestEntryBuilder(); + * mb.reset().add("file1", file1.getRevision(r1)); + * mb.add("file2", file2.getRevision(r2)); + * byte[] manifestRecordData = mb.build(); + * byte[] manifestRevlogHeader = buildRevlogHeader(..., sha1(parents, manifestRecordData), manifestRecordData.length); + * manifestIndexOutputStream.write(manifestRevlogHeader); + * manifestIndexOutputStream.write(manifestRecordData); + * </pre> + * + * @author Artem Tikhomirov + * @author TMate Software Ltd. + */ +public class ManifestEntryBuilder { + private ByteArrayOutputStream buffer = new ByteArrayOutputStream(); + + + public ManifestEntryBuilder reset() { + buffer.reset(); + return this; + } + public ManifestEntryBuilder add(String fname, Nodeid revision) { + byte[] b = fname.getBytes(); + buffer.write(b, 0, b.length); + buffer.write('\0'); + b = revision.toString().getBytes(); + buffer.write(b, 0, b.length); + buffer.write('\n'); + return this; + } + + public byte[] build() { + return buffer.toByteArray(); + } + +}