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+/*
+ * Copyright (C) 2012, IBM Corporation and others.
+ * 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.merge;
+
+import java.util.List;
+
+import org.eclipse.jgit.lib.PersonIdent;
+import org.eclipse.jgit.lib.Ref;
+import org.eclipse.jgit.revwalk.RevCommit;
+import org.eclipse.jgit.util.GitDateFormatter;
+import org.eclipse.jgit.util.GitDateFormatter.Format;
+
+/**
+ * Formatter for constructing the commit message for a squashed commit.
+ * <p>
+ * The format should be the same as C Git does it, for compatibility.
+ */
+public class SquashMessageFormatter {
+
+ private GitDateFormatter dateFormatter;
+
+ /**
+ * Create a new squash message formatter.
+ */
+ public SquashMessageFormatter() {
+ dateFormatter = new GitDateFormatter(Format.DEFAULT);
+ }
+ /**
+ * Construct the squashed commit message.
+ *
+ * @param squashedCommits
+ * the squashed commits
+ * @param target
+ * the target branch
+ * @return squashed commit message
+ */
+ public String format(List<RevCommit> squashedCommits, Ref target) {
+ StringBuilder sb = new StringBuilder();
+ sb.append("Squashed commit of the following:\n");
+ for (RevCommit c : squashedCommits) {
+ sb.append("\ncommit ");
+ sb.append(c.getName());
+ sb.append("\n");
+ sb.append(toString(c.getAuthorIdent()));
+ sb.append("\n\t");
+ sb.append(c.getShortMessage());
+ sb.append("\n");
+ }
+ return sb.toString();
+ }
+
+ private String toString(PersonIdent author) {
+ final StringBuilder a = new StringBuilder();
+
+ a.append("Author: ");
+ a.append(author.getName());
+ a.append(" <");
+ a.append(author.getEmailAddress());
+ a.append(">\n");
+ a.append("Date: ");
+ a.append(dateFormatter.formatDate(author));
+ a.append("\n");
+
+ return a.toString();
+ }
+}