[JGIT PATCH 08/10] Allow DirCacheEntry instances to be created with stage > 0

From

Shawn O. Pearce <spearce@spearce.org>

Date

Jan 22, 2009, 23:28 UTC

Message-ID

<1232666890-23488-9-git-send-email-spearce@spearce.org>

In-Reply-To

<1232666890-23488-8-git-send-email-spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
---
 .../org/spearce/jgit/dircache/DirCacheEntry.java   |   52 +++++++++++++++++---
 1 files changed, 45 insertions(+), 7 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 355cd3e..9304501 100644
--- a/org.spearce.jgit/src/org/spearce/jgit/dircache/DirCacheEntry.java
+++ b/org.spearce.jgit/src/org/spearce/jgit/dircache/DirCacheEntry.java
@@ -60,6 +60,18 @@
 public class DirCacheEntry {
 	private static final byte[] nullpad = new byte[8];
 
+	/** The standard (fully merged) stage for an entry. */
+	public static final int STAGE_0 = 0;
+
+	/** The base tree revision for an entry. */
+	public static final int STAGE_1 = 1;
+
+	/** The first tree revision (usually called "ours"). */
+	public static final int STAGE_2 = 2;
+
+	/** The second tree revision (usually called "theirs"). */
+	public static final int STAGE_3 = 3;
+
 	// private static final int P_CTIME = 0;
 
 	// private static final int P_CTIME_NSEC = 4;
@@ -141,8 +153,8 @@ DirCacheEntry(final byte[] sharedInfo, final int infoAt,
 	}
 
 	/**
-	 * Create an empty entry.
-	 *
+	 * Create an empty entry at stage 0.
+	 * 
 	 * @param newPath
 	 *            name of the cache entry.
 	 */
@@ -151,20 +163,46 @@ public DirCacheEntry(final String newPath) {
 	}
 
 	/**
-	 * Create an empty entry.
-	 *
+	 * Create an empty entry at the specified stage.
+	 * 
+	 * @param newPath
+	 *            name of the cache entry.
+	 * @param stage
+	 *            the stage index of the new entry.
+	 */
+	public DirCacheEntry(final String newPath, final int stage) {
+		this(Constants.encode(newPath), stage);
+	}
+
+	/**
+	 * Create an empty entry at stage 0.
+	 * 
 	 * @param newPath
 	 *            name of the cache entry, in the standard encoding.
 	 */
 	public DirCacheEntry(final byte[] newPath) {
+		this(newPath, STAGE_0);
+	}
+
+	/**
+	 * Create an empty entry at the specified stage.
+	 * 
+	 * @param newPath
+	 *            name of the cache entry, in the standard encoding.
+	 * @param stage
+	 *            the stage index of the new entry.
+	 */
+	public DirCacheEntry(final byte[] newPath, final int stage) {
 		info = new byte[INFO_LEN];
 		infoOffset = 0;
-
 		path = newPath;
+
+		int flags = ((stage & 0x3) << 12);
 		if (path.length < NAME_MASK)
-			NB.encodeInt16(info, infoOffset + P_FLAGS, path.length);
+			flags |= path.length;
 		else
-			NB.encodeInt16(info, infoOffset + P_FLAGS, NAME_MASK);
+			flags |= NAME_MASK;
+		NB.encodeInt16(info, infoOffset + P_FLAGS, flags);
 	}
 
 	void write(final OutputStream os) throws IOException {

-- 
1.6.1.399.g0d272