Added API to TextBuiltin for piped usage.

Added a public method to TextBuiltin which makes it possible for
clients to initialize all of its state, including output and error
streams.  This gives clients the ability to customize the way in
which a command is run.

Change-Id: If718236964d2c5cf869e120c74f1a12965f4812e
Signed-off-by: Ned Twigg <ned.twigg@diffplug.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/TextBuiltin.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/TextBuiltin.java
index 0dc549c7d7..c3b45e8de9 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/TextBuiltin.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/TextBuiltin.java
@@ -139,6 +139,31 @@ public abstract class TextBuiltin {
 	}
 
 	/**
+	 * Initializes the command to work with a repository, including setting the
+	 * output and error streams.
+	 *
+	 * @param repository
+	 *            the opened repository that the command should work on.
+	 * @param gitDir
+	 *            value of the {@code --git-dir} command line option, if
+	 *            {@code repository} is null.
+	 * @param input
+	 *            input stream from which input will be read
+	 * @param output
+	 *            output stream to which output will be written
+	 * @param error
+	 *            error stream to which errors will be written
+	 * @since 4.9
+	 */
+	public void initRaw(final Repository repository, final String gitDir,
+			InputStream input, OutputStream output, OutputStream error) {
+		this.ins = input;
+		this.outs = output;
+		this.errs = error;
+		init(repository, gitDir);
+	}
+
+	/**
 	 * Initialize the command to work with a repository.
 	 *
 	 * @param repository
@@ -285,6 +310,14 @@ public abstract class TextBuiltin {
 	}
 
 	/**
+	 * @return output writer, typically this is standard output.
+	 * @since 4.9
+	 */
+	public ThrowingPrintWriter getOutputWriter() {
+		return outw;
+	}
+
+	/**
 	 * @return the resource bundle that will be passed to args4j for purpose of
 	 *         string localization
 	 */