Add isRebasing to RepositoryState

See EGit change Ic69f5c952a49f023c0949f04b3e976be1b267fbe where this
could be used.

Change-Id: I9ec8568fa1100d2e9c8d4ca0e347bf77ec6d8734

org.eclipse.jgit/src/org/eclipse/jgit/lib/RepositoryState.java

@@ -69,6 +69,9 @@ public enum RepositoryState {
 		@Override
 		public boolean canAmend() { return false; }
 
+		@Override
+		public boolean isRebasing() { return false; }
+
 		@Override
 		public String getDescription() { return "Bare"; }
 	},
@@ -89,6 +92,9 @@ public enum RepositoryState {
 		@Override
 		public boolean canAmend() { return true; }
 
+		@Override
+		public boolean isRebasing() { return false; }
+
 		@Override
 		public String getDescription() { return JGitText.get().repositoryState_normal; }
 	},
@@ -108,6 +114,9 @@ public enum RepositoryState {
 		@Override
 		public boolean canAmend() { return false; }
 
+		@Override
+		public boolean isRebasing() { return false; }
+
 		@Override
 		public String getDescription() { return JGitText.get().repositoryState_conflicts; }
 	},
@@ -129,6 +138,9 @@ public enum RepositoryState {
 		@Override
 		public boolean canAmend() { return false; }
 
+		@Override
+		public boolean isRebasing() { return false; }
+
 		@Override
 		public String getDescription() { return JGitText.get().repositoryState_merged; }
 	},
@@ -148,6 +160,9 @@ public enum RepositoryState {
 		@Override
 		public boolean canAmend() { return false; }
 
+		@Override
+		public boolean isRebasing() { return false; }
+
 		@Override
 		public String getDescription() { return JGitText.get().repositoryState_conflicts; }
 	},
@@ -169,6 +184,9 @@ public enum RepositoryState {
 		@Override
 		public boolean canAmend() { return false; }
 
+		@Override
+		public boolean isRebasing() { return false; }
+
 		@Override
 		public String getDescription() { return JGitText.get().repositoryState_merged; }
 	},
@@ -188,6 +206,9 @@ public enum RepositoryState {
 		@Override
 		public boolean canAmend() { return false; }
 
+		@Override
+		public boolean isRebasing() { return false; }
+
 		@Override
 		public String getDescription() { return JGitText.get().repositoryState_conflicts; }
 	},
@@ -209,6 +230,9 @@ public enum RepositoryState {
 		@Override
 		public boolean canAmend() { return false; }
 
+		@Override
+		public boolean isRebasing() { return false; }
+
 		@Override
 		public String getDescription() { return JGitText.get().repositoryState_merged; }
 	},
@@ -229,6 +253,9 @@ public enum RepositoryState {
 		@Override
 		public boolean canAmend() { return true; }
 
+		@Override
+		public boolean isRebasing() { return true; }
+
 		@Override
 		public String getDescription() { return JGitText.get().repositoryState_rebaseOrApplyMailbox; }
 	},
@@ -249,6 +276,9 @@ public enum RepositoryState {
 		@Override
 		public boolean canAmend() { return true; }
 
+		@Override
+		public boolean isRebasing() { return true; }
+
 		@Override
 		public String getDescription() { return JGitText.get().repositoryState_rebase; }
 	},
@@ -269,6 +299,9 @@ public enum RepositoryState {
 		@Override
 		public boolean canAmend() { return true; }
 
+		@Override
+		public boolean isRebasing() { return false; }
+
 		@Override
 		public String getDescription() { return JGitText.get().repositoryState_applyMailbox; }
 	},
@@ -289,6 +322,9 @@ public enum RepositoryState {
 		@Override
 		public boolean canAmend() { return true; }
 
+		@Override
+		public boolean isRebasing() { return true; }
+
 		@Override
 		public String getDescription() { return JGitText.get().repositoryState_rebaseWithMerge; }
 	},
@@ -309,6 +345,9 @@ public enum RepositoryState {
 		@Override
 		public boolean canAmend() { return true; }
 
+		@Override
+		public boolean isRebasing() { return true; }
+
 		@Override
 		public String getDescription() { return JGitText.get().repositoryState_rebaseInteractive; }
 	},
@@ -332,6 +371,9 @@ public enum RepositoryState {
 		@Override
 		public boolean canAmend() { return false; }
 
+		@Override
+		public boolean isRebasing() { return false; }
+
 		@Override
 		public String getDescription() { return JGitText.get().repositoryState_bisecting; }
 	};
@@ -356,6 +398,12 @@ public enum RepositoryState {
 	 */
 	public abstract boolean canAmend();
 
+	/**
+	 * @return true if the repository is currently in a rebase
+	 * @since 2.4
+	 */
+	public abstract boolean isRebasing();
+
 	/**
 	 * @return a human readable description of the state.
 	 */