Add path option to StatusCommand

Allow filtering of the status. Only files which match given paths are
inspected and only their state is reported.

Change-Id: I3c4b1b46bf297cd4ebdb4997cfa14c8752a36411
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/api/StatusCommand.java b/org.eclipse.jgit/src/org/eclipse/jgit/api/StatusCommand.java
index b3e112fc6a..182ffa84b1 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/api/StatusCommand.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/api/StatusCommand.java
@@ -43,6 +43,8 @@
 package org.eclipse.jgit.api;
 
 import java.io.IOException;
+import java.util.LinkedList;
+import java.util.List;
 
 import org.eclipse.jgit.api.errors.GitAPIException;
 import org.eclipse.jgit.api.errors.JGitInternalException;
@@ -52,6 +54,7 @@ import org.eclipse.jgit.lib.IndexDiff;
 import org.eclipse.jgit.lib.Repository;
 import org.eclipse.jgit.treewalk.FileTreeIterator;
 import org.eclipse.jgit.treewalk.WorkingTreeIterator;
+import org.eclipse.jgit.treewalk.filter.PathFilterGroup;
 
 /**
  * A class used to execute a {@code Status} command. It has setters for all
@@ -65,6 +68,7 @@ import org.eclipse.jgit.treewalk.WorkingTreeIterator;
  */
 public class StatusCommand extends GitCommand<Status> {
 	private WorkingTreeIterator workingTreeIt;
+	private List<String> paths = null;
 
 	/**
 	 * @param repo
@@ -74,6 +78,36 @@ public class StatusCommand extends GitCommand<Status> {
 	}
 
 	/**
+	 * Show only the status of files which match the given paths. The path must
+	 * either name a file or a directory exactly. All paths are always relative
+	 * to the repository root. If a directory is specified all files recursively
+	 * underneath that directory are matched. If this method is called multiple
+	 * times then the status of those files is reported which match at least one
+	 * of the given paths. Note that regex expressions or wildcards are not
+	 * supported.
+	 *
+	 * @param path
+	 *            a path is relative to the top level of the repository
+	 * @return {@code this}
+	 */
+	public StatusCommand addPath(String path) {
+		if (paths == null)
+			paths = new LinkedList<String>();
+		paths.add(path);
+		return this;
+	}
+
+	/**
+	 * Returns the paths filtering this status.
+	 *
+	 * @return the paths for which the status is shown or <code>null</code> if
+	 *         the complete status for the whole repo is shown.
+	 */
+	public List<String> getPaths() {
+		return paths;
+	}
+
+	/**
 	 * Executes the {@code Status} command with all the options and parameters
 	 * collected by the setter methods of this class. Each instance of this
 	 * class should only be used for one invocation of the command. Don't call
@@ -88,6 +122,8 @@ public class StatusCommand extends GitCommand<Status> {
 
 		try {
 			IndexDiff diff = new IndexDiff(repo, Constants.HEAD, workingTreeIt);
+			if (paths != null)
+				diff.setFilter(PathFilterGroup.createFromStrings(paths));
 			diff.diff();
 			return new Status(diff);
 		} catch (IOException e) {