[JGIT PATCH 10/10] Default IndexPack to honor pack.indexversion configuration

["Shawn O. Pearce" <spearce@spearce.org>]

Users may already desire to create only v2 pack index files, as
the extra CRC code makes repacking faster due to quicker delta
reuse code paths being available.  However we still must default
to version 0 to select oldest version available to improve our
changes of being compatible with really old Git executables.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
---
 .../src/org/spearce/jgit/lib/CoreConfig.java       |   11 +++++++++++
 .../src/org/spearce/jgit/transport/IndexPack.java  |    4 +++-
 2 files changed, 14 insertions(+), 1 deletions(-)

diff --git a/org.spearce.jgit/src/org/spearce/jgit/lib/CoreConfig.java b/org.spearce.jgit/src/org/spearce/jgit/lib/CoreConfig.java
index 01d4210..2dd8aea 100644
--- a/org.spearce.jgit/src/org/spearce/jgit/lib/CoreConfig.java
+++ b/org.spearce.jgit/src/org/spearce/jgit/lib/CoreConfig.java
@@ -48,8 +48,11 @@ public class CoreConfig {
 
 	private final int compression;
 
+	private final int packIndexVersion;
+
 	CoreConfig(final RepositoryConfig rc) {
 		compression = rc.getInt("core", "compression", DEFAULT_COMPRESSION);
+		packIndexVersion = rc.getInt("pack", "indexversion", 0);
 	}
 
 	/**
@@ -59,4 +62,12 @@ public class CoreConfig {
 	public int getCompression() {
 		return compression;
 	}
+
+	/**
+	 * @return the preferred pack index file format; 0 for oldest possible.
+	 * @see org.spearce.jgit.transport.IndexPack
+	 */
+	public int getPackIndexVersion() {
+		return packIndexVersion;
+	}
 }
diff --git a/org.spearce.jgit/src/org/spearce/jgit/transport/IndexPack.java b/org.spearce.jgit/src/org/spearce/jgit/transport/IndexPack.java
index 06ef7cc..8083cc8 100644
--- a/org.spearce.jgit/src/org/spearce/jgit/transport/IndexPack.java
+++ b/org.spearce.jgit/src/org/spearce/jgit/transport/IndexPack.java
@@ -102,7 +102,9 @@ public class IndexPack {
 		final File base;
 
 		base = new File(objdir, n.substring(0, n.length() - suffix.length()));
-		return new IndexPack(db, is, base);
+		final IndexPack ip = new IndexPack(db, is, base);
+		ip.setIndexVersion(db.getConfig().getCore().getPackIndexVersion());
+		return ip;
 	}
 
 	private final Repository repo;
-- 
1.5.6.74.g8a5e