Mercurial > jhg
diff src/org/tmatesoft/hg/repo/Revlog.java @ 534:243202f1bda5
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 |
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--- a/src/org/tmatesoft/hg/repo/Revlog.java Wed Jan 30 15:48:36 2013 +0100 +++ b/src/org/tmatesoft/hg/repo/Revlog.java Mon Feb 04 18:00:55 2013 +0100 @@ -1,5 +1,5 @@ /* - * Copyright (c) 2010-2012 TMate Software Ltd + * Copyright (c) 2010-2013 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 @@ -84,11 +84,14 @@ } /** - * @return index of last known revision, a.k.a. {@link HgRepository#TIP} + * @return index of last known revision, a.k.a. {@link HgRepository#TIP}, or {@link HgRepository#NO_REVISION} if revlog is empty * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em> */ public final int getLastRevision() throws HgRuntimeException { - return content.revisionCount() - 1; + // although old code gives correct result when revlog is empty (NO_REVISION deliberately == -1), + // it's still better to be explicit + int revCount = content.revisionCount(); + return revCount == 0 ? NO_REVISION : revCount - 1; } /**