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- /*
- * Copyright (C) 2007, Robin Rosenberg <robin.rosenberg@dewire.com>
- * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
- * and other copyright owners as documented in the project's IP log.
- *
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Distribution License v1.0 which
- * accompanies this distribution, is reproduced below, and is
- * available at http://www.eclipse.org/org/documents/edl-v10.php
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * - Neither the name of the Eclipse Foundation, Inc. nor the
- * names of its contributors may be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
- package org.eclipse.jgit.lib;
-
- /**
- * A simple progress reporter printing on stderr
- */
- public class TextProgressMonitor implements ProgressMonitor {
- private boolean output;
-
- private long taskBeganAt;
-
- private String msg;
-
- private int lastWorked;
-
- private int totalWork;
-
- /** Initialize a new progress monitor. */
- public TextProgressMonitor() {
- taskBeganAt = System.currentTimeMillis();
- }
-
- public void start(final int totalTasks) {
- // Ignore the number of tasks.
- taskBeganAt = System.currentTimeMillis();
- }
-
- public void beginTask(final String title, final int total) {
- endTask();
- msg = title;
- lastWorked = 0;
- totalWork = total;
- }
-
- public void update(final int completed) {
- if (msg == null)
- return;
-
- final int cmp = lastWorked + completed;
- if (!output && System.currentTimeMillis() - taskBeganAt < 500)
- return;
- if (totalWork == UNKNOWN) {
- display(cmp);
- System.err.flush();
- } else {
- if ((cmp * 100 / totalWork) != (lastWorked * 100) / totalWork) {
- display(cmp);
- System.err.flush();
- }
- }
- lastWorked = cmp;
- output = true;
- }
-
- private void display(final int cmp) {
- final StringBuilder m = new StringBuilder();
- m.append('\r');
- m.append(msg);
- m.append(": ");
- while (m.length() < 25)
- m.append(' ');
-
- if (totalWork == UNKNOWN) {
- m.append(cmp);
- } else {
- final String twstr = String.valueOf(totalWork);
- String cmpstr = String.valueOf(cmp);
- while (cmpstr.length() < twstr.length())
- cmpstr = " " + cmpstr;
- final int pcnt = (cmp * 100 / totalWork);
- if (pcnt < 100)
- m.append(' ');
- if (pcnt < 10)
- m.append(' ');
- m.append(pcnt);
- m.append("% (");
- m.append(cmpstr);
- m.append("/");
- m.append(twstr);
- m.append(")");
- }
-
- System.err.print(m);
- }
-
- public boolean isCancelled() {
- return false;
- }
-
- public void endTask() {
- if (output) {
- if (totalWork != UNKNOWN)
- display(totalWork);
- System.err.println();
- }
- output = false;
- msg = null;
- }
- }
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