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- /*
- * Copyright (C) 2010, Google Inc. 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.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 = DiffConfig::new;
-
- /** Permissible values for {@code diff.renames}. */
- public 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(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, 400);
- }
-
- /**
- * If prefix should be suppressed
- *
- * @return true if the prefix "a/" and "b/" should be suppressed
- */
- public boolean isNoPrefix() {
- return noPrefix;
- }
-
- /**
- * If rename detection is enabled
- *
- * @return true if rename detection is enabled by default
- */
- public boolean isRenameDetectionEnabled() {
- return renameDetectionType != RenameDetectionType.FALSE;
- }
-
- /**
- * Get the rename detection type
- *
- * @return type of rename detection to perform
- */
- public RenameDetectionType getRenameDetectionType() {
- return renameDetectionType;
- }
-
- /**
- * Get the rename limit
- *
- * @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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