| /******************************************************************************* |
| * Copyright (c) 2014 Konrad Kügler and others |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0 which is available at |
| * https://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| *******************************************************************************/ |
| 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.Config.SectionParser; |
| import org.eclipse.jgit.lib.ConfigConstants; |
| import org.eclipse.jgit.lib.Repository; |
| |
| /** |
| * Holds configuration for merging into a given branch |
| * |
| * @since 3.3 |
| */ |
| public class MergeConfig { |
| |
| /** |
| * Get merge configuration for the current branch of the repository |
| * |
| * @param repo |
| * a {@link org.eclipse.jgit.lib.Repository} object. |
| * @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(); |
| } |
| |
| /** |
| * Get a parser for use with |
| * {@link org.eclipse.jgit.lib.Config#get(SectionParser)} |
| * |
| * @param branch |
| * short branch name to get the configuration for, as returned |
| * e.g. by {@link org.eclipse.jgit.lib.Repository#getBranch()} |
| * @return a parser for use with |
| * {@link org.eclipse.jgit.lib.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; |
| } |
| |
| /** |
| * Get the fast forward mode configured for this branch |
| * |
| * @return the fast forward mode configured for this branch |
| */ |
| public FastForwardMode getFastForwardMode() { |
| return fastForwardMode; |
| } |
| |
| /** |
| * Whether merges into this branch are configured to be squash merges, false |
| * otherwise |
| * |
| * @return true if merges into this branch are configured to be squash |
| * merges, false otherwise |
| */ |
| public boolean isSquash() { |
| return squash; |
| } |
| |
| /** |
| * Whether {@code --no-commit} option is not set. |
| * |
| * @return {@code false} if --no-commit is configured for this branch, |
| * {@code true} otherwise (even 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"); //$NON-NLS-1$ |
| } |
| return new String[0]; |
| } |
| |
| private static class MergeConfigSectionParser implements |
| SectionParser<MergeConfig> { |
| |
| private final String branch; |
| |
| public MergeConfigSectionParser(String branch) { |
| this.branch = branch; |
| } |
| |
| @Override |
| 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); |
| } |
| return false; |
| } |
| |
| @Override |
| public int hashCode() { |
| return branch.hashCode(); |
| } |
| |
| } |
| |
| } |