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- /*
- * Copyright (C) 2010, Google Inc.
- * 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.diff;
-
- import java.text.MessageFormat;
-
- import org.eclipse.jgit.internal.JGitText;
- import org.eclipse.jgit.lib.Config;
- import org.eclipse.jgit.lib.Config.SectionParser;
- import org.eclipse.jgit.lib.ConfigConstants;
- import org.eclipse.jgit.util.StringUtils;
-
- /** Keeps track of diff related configuration options. */
- public class DiffConfig {
- /** Key for {@link Config#get(SectionParser)}. */
- public static final Config.SectionParser<DiffConfig> KEY = new SectionParser<DiffConfig>() {
- public DiffConfig parse(final Config cfg) {
- return new DiffConfig(cfg);
- }
- };
-
- /** Permissible values for {@code diff.renames}. */
- public static enum RenameDetectionType {
- /** Rename detection is disabled. */
- FALSE,
-
- /** Rename detection is enabled. */
- TRUE,
-
- /** Copies should be detected too. */
- COPY
- }
-
- private final boolean noPrefix;
-
- private final RenameDetectionType renameDetectionType;
-
- private final int renameLimit;
-
- private DiffConfig(final Config rc) {
- noPrefix = rc.getBoolean(ConfigConstants.CONFIG_DIFF_SECTION,
- ConfigConstants.CONFIG_KEY_NOPREFIX, false);
- renameDetectionType = parseRenameDetectionType(rc.getString(
- ConfigConstants.CONFIG_DIFF_SECTION, null, ConfigConstants.CONFIG_KEY_RENAMES));
- renameLimit = rc.getInt(ConfigConstants.CONFIG_DIFF_SECTION,
- ConfigConstants.CONFIG_KEY_RENAMELIMIT, 200);
- }
-
- /** @return true if the prefix "a/" and "b/" should be suppressed. */
- public boolean isNoPrefix() {
- return noPrefix;
- }
-
- /** @return true if rename detection is enabled by default. */
- public boolean isRenameDetectionEnabled() {
- return renameDetectionType != RenameDetectionType.FALSE;
- }
-
- /** @return type of rename detection to perform. */
- public RenameDetectionType getRenameDetectionType() {
- return renameDetectionType;
- }
-
- /** @return limit on number of paths to perform inexact rename detection. */
- public int getRenameLimit() {
- return renameLimit;
- }
-
- private static RenameDetectionType parseRenameDetectionType(
- final String renameString) {
- if (renameString == null)
- return RenameDetectionType.FALSE;
- else if (StringUtils.equalsIgnoreCase(
- ConfigConstants.CONFIG_RENAMELIMIT_COPY, renameString)
- || StringUtils
- .equalsIgnoreCase(
- ConfigConstants.CONFIG_RENAMELIMIT_COPIES,
- renameString))
- return RenameDetectionType.COPY;
- else {
- final Boolean renameBoolean = StringUtils
- .toBooleanOrNull(renameString);
- if (renameBoolean == null)
- throw new IllegalArgumentException(MessageFormat.format(
- JGitText.get().enumValueNotSupported2,
- ConfigConstants.CONFIG_DIFF_SECTION,
- ConfigConstants.CONFIG_KEY_RENAMES, renameString));
- else if (renameBoolean.booleanValue())
- return RenameDetectionType.TRUE;
- else
- return RenameDetectionType.FALSE;
- }
- }
- }
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