[EGIT PATCH 17/26] Support copying meta fields from one DirCacheEntry to another

From

Shawn O. Pearce <spearce@spearce.org>

Date

Aug 12, 2008, 01:08 UTC

Message-ID

<1218503293-14057-18-git-send-email-spearce@spearce.org>

In-Reply-To

<1218503293-14057-17-git-send-email-spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
---
 .../org/spearce/jgit/dircache/DirCacheEntry.java   |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/org.spearce.jgit/src/org/spearce/jgit/dircache/DirCacheEntry.java b/org.spearce.jgit/src/org/spearce/jgit/dircache/DirCacheEntry.java
index eba2678..2b5ce03 100644
--- a/org.spearce.jgit/src/org/spearce/jgit/dircache/DirCacheEntry.java
+++ b/org.spearce.jgit/src/org/spearce/jgit/dircache/DirCacheEntry.java
@@ -354,6 +354,22 @@ public class DirCacheEntry {
 		return Constants.CHARSET.decode(ByteBuffer.wrap(path)).toString();
 	}
 
+	/**
+	 * Copy the ObjectId and other meta fields from an existing entry.
+	 * <p>
+	 * This method copies everything except the path from one entry to another,
+	 * supporting renaming.
+	 * 
+	 * @param src
+	 *            the entry to copy ObjectId and meta fields from.
+	 */
+	public void copyMetaData(final DirCacheEntry src) {
+		final int pLen = NB.decodeUInt16(info, infoOffset + P_FLAGS) & 0xfff;
+		System.arraycopy(src.info, src.infoOffset, info, infoOffset, INFO_LEN);
+		NB.encodeInt16(info, infoOffset + P_FLAGS, pLen
+				| NB.decodeUInt16(info, infoOffset + P_FLAGS) & ~0xfff);
+	}
+
 	private long decodeTS(final int pIdx) {
 		final int base = infoOffset + pIdx;
 		final int sec = NB.decodeInt32(info, base);

-- 
1.6.0.rc2.22.g71b99