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comparison src/org/tmatesoft/hg/repo/Revlog.java @ 534:243202f1bda5

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Commit: refactor revision creation code from clone command to work separately, fit into existing library structure
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Mon, 04 Feb 2013 18:00:55 +0100
parents b3c16d1aede0
children dd4f6311af52
comparison
equal deleted inserted replaced
533:e6f72c9829a6 534:243202f1bda5
1 /* 1 /*
2 * Copyright (c) 2010-2012 TMate Software Ltd 2 * Copyright (c) 2010-2013 TMate Software Ltd
3 * 3 *
4 * This program is free software; you can redistribute it and/or modify 4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by 5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License. 6 * the Free Software Foundation; version 2 of the License.
7 * 7 *
82 public final int getRevisionCount() throws HgRuntimeException { 82 public final int getRevisionCount() throws HgRuntimeException {
83 return content.revisionCount(); 83 return content.revisionCount();
84 } 84 }
85 85
86 /** 86 /**
87 * @return index of last known revision, a.k.a. {@link HgRepository#TIP} 87 * @return index of last known revision, a.k.a. {@link HgRepository#TIP}, or {@link HgRepository#NO_REVISION} if revlog is empty
88 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em> 88 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
89 */ 89 */
90 public final int getLastRevision() throws HgRuntimeException { 90 public final int getLastRevision() throws HgRuntimeException {
91 return content.revisionCount() - 1; 91 // although old code gives correct result when revlog is empty (NO_REVISION deliberately == -1),
92 // it's still better to be explicit
93 int revCount = content.revisionCount();
94 return revCount == 0 ? NO_REVISION : revCount - 1;
92 } 95 }
93 96
94 /** 97 /**
95 * Map revision index to unique revision identifier (nodeid). 98 * Map revision index to unique revision identifier (nodeid).
96 * 99 *