| /******************************************************************************* |
| * Copyright (c) 2014 Konrad Kügler |
| * 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.io.IOException; |
| |
| import org.eclipse.jgit.api.MergeCommand.FastForwardMode; |
| import org.eclipse.jgit.lib.Config; |
| import org.eclipse.jgit.lib.ConfigConstants; |
| import org.eclipse.jgit.lib.Config.SectionParser; |
| import org.eclipse.jgit.lib.Repository; |
| |
| /** |
| * Holds configuration for merging into a given branch |
| * |
| * @since 3.3 |
| */ |
| public class MergeConfig { |
| |
| /** |
| * @param repo |
| * @return merge configuration for the current branch of the repository |
| */ |
| public static MergeConfig getConfigForCurrentBranch(Repository repo) { |
| try { |
| String branch = repo.getBranch(); |
| if (branch != null) |
| return repo.getConfig().get(getParser(branch)); |
| } catch (IOException e) { |
| // ignore |
| } |
| // use defaults if branch can't be determined |
| return new MergeConfig(); |
| } |
| |
| /** |
| * @param branch |
| * short branch name to get the configuration for, as returned |
| * e.g. by {@link Repository#getBranch()} |
| * @return a parser for use with {@link Config#get(SectionParser)} |
| */ |
| public static final SectionParser<MergeConfig> getParser( |
| final String branch) { |
| return new MergeConfigSectionParser(branch); |
| } |
| |
| private final FastForwardMode fastForwardMode; |
| |
| private final boolean squash; |
| |
| private final boolean commit; |
| |
| private MergeConfig(String branch, Config config) { |
| String[] mergeOptions = getMergeOptions(branch, config); |
| fastForwardMode = getFastForwardMode(config, mergeOptions); |
| squash = isMergeConfigOptionSet("--squash", mergeOptions); //$NON-NLS-1$ |
| commit = !isMergeConfigOptionSet("--no-commit", mergeOptions); //$NON-NLS-1$ |
| } |
| |
| private MergeConfig() { |
| fastForwardMode = FastForwardMode.FF; |
| squash = false; |
| commit = true; |
| } |
| |
| /** |
| * @return the fast forward mode configured for this branch |
| */ |
| public FastForwardMode getFastForwardMode() { |
| return fastForwardMode; |
| } |
| |
| /** |
| * @return true if merges into this branch are configured to be squash |
| * merges, false otherwise |
| */ |
| public boolean isSquash() { |
| return squash; |
| } |
| |
| /** |
| * @return false if --no-commit is configured for this branch, true |
| * otherwise (event if --squash is configured) |
| */ |
| public boolean isCommit() { |
| return commit; |
| } |
| |
| private static FastForwardMode getFastForwardMode(Config config, |
| String[] mergeOptions) { |
| for (String option : mergeOptions) { |
| for (FastForwardMode mode : FastForwardMode.values()) |
| if (mode.matchConfigValue(option)) |
| return mode; |
| } |
| FastForwardMode ffmode = FastForwardMode.valueOf(config.getEnum( |
| ConfigConstants.CONFIG_KEY_MERGE, null, |
| ConfigConstants.CONFIG_KEY_FF, FastForwardMode.Merge.TRUE)); |
| return ffmode; |
| } |
| |
| private static boolean isMergeConfigOptionSet(String optionToLookFor, |
| String[] mergeOptions) { |
| for (String option : mergeOptions) { |
| if (optionToLookFor.equals(option)) |
| return true; |
| } |
| return false; |
| } |
| |
| private static String[] getMergeOptions(String branch, Config config) { |
| String mergeOptions = config.getString( |
| ConfigConstants.CONFIG_BRANCH_SECTION, branch, |
| ConfigConstants.CONFIG_KEY_MERGEOPTIONS); |
| if (mergeOptions != null) |
| return mergeOptions.split("\\s"); //$NON-NLS-1$ |
| else |
| return new String[0]; |
| } |
| |
| private static class MergeConfigSectionParser implements |
| SectionParser<MergeConfig> { |
| |
| private final String branch; |
| |
| public MergeConfigSectionParser(String branch) { |
| this.branch = branch; |
| } |
| |
| public MergeConfig parse(Config cfg) { |
| return new MergeConfig(branch, cfg); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj instanceof MergeConfigSectionParser) |
| return branch.equals(((MergeConfigSectionParser) obj).branch); |
| else |
| return false; |
| } |
| |
| @Override |
| public int hashCode() { |
| return branch.hashCode(); |
| } |
| |
| } |
| |
| } |