Enhance ResetCommand to allow disabling reflog update

This will be used by EGit for implementing commit amend in the staging
view (see Idcd1efeeee8b3065bae36e285bfc0af24ab1e88f).

Change-Id: Ice9ebbb1c0c3314c679f4db40cdd3664f61c27c3
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

1 files changed, 28 insertions, 2 deletions

diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/api/ResetCommand.java b/org.eclipse.jgit/src/org/eclipse/jgit/api/ResetCommand.java
index e385a5d174..3ceff843a5 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/api/ResetCommand.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/api/ResetCommand.java
@@ -123,6 +123,8 @@ public class ResetCommand extends GitCommand<Ref> {
 
 	private Collection<String> filepaths = new LinkedList<String>();
 
+	private boolean isReflogDisabled;
+
 	/**
 	 *
 	 * @param repo
@@ -181,8 +183,12 @@ public class ResetCommand extends GitCommand<Ref> {
 				ru.setNewObjectId(commitId);
 
 				String refName = Repository.shortenRefName(getRefOrHEAD());
-				String message = refName + ": updating " + Constants.HEAD; //$NON-NLS-1$
-				ru.setRefLogMessage(message, false);
+				if (isReflogDisabled) {
+					ru.disableRefLog();
+				} else {
+					String message = refName + ": updating " + Constants.HEAD; //$NON-NLS-1$
+					ru.setRefLogMessage(message, false);
+				}
 				if (ru.forceUpdate() == RefUpdate.Result.LOCK_FAILURE)
 					throw new JGitInternalException(MessageFormat.format(
 							JGitText.get().cannotLock, ru.getName()));
@@ -289,6 +295,26 @@ public class ResetCommand extends GitCommand<Ref> {
 		return this;
 	}
 
+	/**
+	 * @param disable
+	 *            if {@code true} disables writing a reflog entry for this reset
+	 *            command
+	 * @return this instance
+	 * @since 4.5
+	 */
+	public ResetCommand disableRefLog(boolean disable) {
+		this.isReflogDisabled = disable;
+		return this;
+	}
+
+	/**
+	 * @return {@code true} if writing reflog is disabled for this reset command
+	 * @since 4.5
+	 */
+	public boolean isReflogDisabled() {
+		return this.isReflogDisabled;
+	}
+
 	private String getRefOrHEAD() {
 		if (ref != null)
 			return ref;