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Diffstat (limited to 'org.eclipse.jgit/src/org/eclipse/jgit/merge/MergeMessageFormatter.java')
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/merge/MergeMessageFormatter.java132
1 files changed, 132 insertions, 0 deletions
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/merge/MergeMessageFormatter.java b/org.eclipse.jgit/src/org/eclipse/jgit/merge/MergeMessageFormatter.java
new file mode 100644
index 0000000000..cb2f8a522c
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+++ b/org.eclipse.jgit/src/org/eclipse/jgit/merge/MergeMessageFormatter.java
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2010, Robin Stocker <robin@nibor.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.merge;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.jgit.lib.Constants;
+import org.eclipse.jgit.lib.Ref;
+import org.eclipse.jgit.lib.Repository;
+import org.eclipse.jgit.util.StringUtils;
+
+/**
+ * Formatter for constructing the commit message for a merge commit.
+ * <p>
+ * The format should be the same as C Git does it, for compatibility.
+ */
+public class MergeMessageFormatter {
+ /**
+ * Construct the merge commit message.
+ *
+ * @param refsToMerge
+ * the refs which will be merged
+ * @param target
+ * the branch ref which will be merged into
+ * @return merge commit message
+ */
+ public String format(List<Ref> refsToMerge, Ref target) {
+ StringBuilder sb = new StringBuilder();
+ sb.append("Merge ");
+
+ List<String> branches = new ArrayList<String>();
+ List<String> remoteBranches = new ArrayList<String>();
+ List<String> tags = new ArrayList<String>();
+ List<String> commits = new ArrayList<String>();
+ List<String> others = new ArrayList<String>();
+ for (Ref ref : refsToMerge) {
+ if (ref.getName().startsWith(Constants.R_HEADS))
+ branches.add("'" + Repository.shortenRefName(ref.getName())
+ + "'");
+
+ else if (ref.getName().startsWith(Constants.R_REMOTES))
+ remoteBranches.add("'"
+ + Repository.shortenRefName(ref.getName()) + "'");
+
+ else if (ref.getName().startsWith(Constants.R_TAGS))
+ tags.add("'" + Repository.shortenRefName(ref.getName()) + "'");
+
+ else if (ref.getName().equals(ref.getObjectId().getName()))
+ commits.add("'" + ref.getName() + "'");
+
+ else
+ others.add(ref.getName());
+ }
+
+ List<String> listings = new ArrayList<String>();
+
+ if (!branches.isEmpty())
+ listings.add(joinNames(branches, "branch", "branches"));
+
+ if (!remoteBranches.isEmpty())
+ listings.add(joinNames(remoteBranches, "remote branch",
+ "remote branches"));
+
+ if (!tags.isEmpty())
+ listings.add(joinNames(tags, "tag", "tags"));
+
+ if (!commits.isEmpty())
+ listings.add(joinNames(commits, "commit", "commits"));
+
+ if (!others.isEmpty())
+ listings.add(StringUtils.join(others, ", ", " and "));
+
+ sb.append(StringUtils.join(listings, ", "));
+
+ if (!target.getName().equals(Constants.R_HEADS + Constants.MASTER)) {
+ String targetShortName = Repository
+ .shortenRefName(target.getName());
+ sb.append(" into " + targetShortName);
+ }
+
+ return sb.toString();
+ }
+
+ private static String joinNames(List<String> names, String singular,
+ String plural) {
+ if (names.size() == 1)
+ return singular + " " + names.get(0);
+ else
+ return plural + " " + StringUtils.join(names, ", ", " and ");
+ }
+}

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