| /* |
| * Copyright (C) 2010, Red Hat 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.attributes; |
| |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| |
| import java.io.BufferedReader; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * Represents a bundle of attributes inherited from a base directory. |
| * |
| * This class is not thread safe, it maintains state about the last match. |
| * |
| * @since 3.7 |
| */ |
| public class AttributesNode { |
| /** The rules that have been parsed into this node. */ |
| private final List<AttributesRule> rules; |
| |
| /** |
| * Create an empty ignore node with no rules. |
| */ |
| public AttributesNode() { |
| rules = new ArrayList<>(); |
| } |
| |
| /** |
| * Create an ignore node with given rules. |
| * |
| * @param rules |
| * list of rules. |
| */ |
| public AttributesNode(List<AttributesRule> rules) { |
| this.rules = rules; |
| } |
| |
| /** |
| * Parse files according to gitattribute standards. |
| * |
| * @param in |
| * input stream holding the standard ignore format. The caller is |
| * responsible for closing the stream. |
| * @throws java.io.IOException |
| * Error thrown when reading an ignore file. |
| */ |
| public void parse(InputStream in) throws IOException { |
| BufferedReader br = asReader(in); |
| String txt; |
| while ((txt = br.readLine()) != null) { |
| txt = txt.trim(); |
| if (txt.length() > 0 && !txt.startsWith("#") /* Comments *///$NON-NLS-1$ |
| && !txt.startsWith("!") /* Negative pattern forbidden for attributes */) { //$NON-NLS-1$ |
| int patternEndSpace = txt.indexOf(' '); |
| int patternEndTab = txt.indexOf('\t'); |
| |
| final int patternEnd; |
| if (patternEndSpace == -1) |
| patternEnd = patternEndTab; |
| else if (patternEndTab == -1) |
| patternEnd = patternEndSpace; |
| else |
| patternEnd = Math.min(patternEndSpace, patternEndTab); |
| |
| if (patternEnd > -1) |
| rules.add(new AttributesRule(txt.substring(0, patternEnd), |
| txt.substring(patternEnd + 1).trim())); |
| } |
| } |
| } |
| |
| private static BufferedReader asReader(InputStream in) { |
| return new BufferedReader(new InputStreamReader(in, UTF_8)); |
| } |
| |
| /** |
| * Getter for the field <code>rules</code>. |
| * |
| * @return list of all ignore rules held by this node |
| */ |
| public List<AttributesRule> getRules() { |
| return Collections.unmodifiableList(rules); |
| } |
| |
| } |