1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
/*
* Copyright (C) 2010, Red Hat 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.ignore;
import org.eclipse.jgit.errors.InvalidPatternException;
import org.eclipse.jgit.fnmatch.FileNameMatcher;
/**
* A single ignore rule corresponding to one line in a .gitignore or
* ignore file. Parses the ignore pattern
*
* Inspiration from: Ferry Huberts
*/
public class IgnoreRule {
private String pattern;
private boolean negation;
private boolean nameOnly;
private boolean dirOnly;
private FileNameMatcher matcher;
/**
* Create a new ignore rule with the given pattern. Assumes that
* the pattern is already trimmed.
*
* @param pattern
* Base pattern for the ignore rule. This pattern will
* be parsed to generate rule parameters.
*/
public IgnoreRule (String pattern) {
this.pattern = pattern;
negation = false;
nameOnly = false;
dirOnly = false;
matcher = null;
setup();
}
/**
* Remove leading/trailing characters as needed. Set up
* rule variables for later matching.
*/
private void setup() {
int startIndex = 0;
int endIndex = pattern.length();
if (pattern.startsWith("!")) {
startIndex++;
negation = true;
}
if (pattern.endsWith("/")) {
endIndex --;
dirOnly = true;
}
pattern = pattern.substring(startIndex, endIndex);
if (!pattern.contains("/"))
nameOnly = true;
else if (!pattern.startsWith("/")) {
//Contains "/" but does not start with one
//Adding / to the start should not interfere with matching
pattern = "/" + pattern;
}
if (pattern.contains("*") || pattern.contains("?") || pattern.contains("[")) {
try {
matcher = new FileNameMatcher(pattern, new Character('/'));
} catch (InvalidPatternException e) {
e.printStackTrace();
}
}
}
/**
* @return
* True if the pattern is just a file name and not a path
*/
public boolean getNameOnly() {
return nameOnly;
}
/**
*
* @return
* True if the pattern should match directories only
*/
public boolean dirOnly() {
return dirOnly;
}
/**
*
* @return
* True if the pattern had a "!" in front of it
*/
public boolean getNegation() {
return negation;
}
/**
* @return
* The blob pattern to be used as a matcher
*/
public String getPattern() {
return pattern;
}
/**
* Returns true if a match was made.
* <br>
* This function does NOT return the actual ignore status of the
* target! Please consult {@link #getResult()} for the ignore status. The actual
* ignore status may be true or false depending on whether this rule is
* an ignore rule or a negation rule.
*
* @param target
* Name pattern of the file, relative to the base directory of this rule
* @param isDirectory
* Whether the target file is a directory or not
* @return
* True if a match was made. This does not necessarily mean that
* the target is ignored. Call {@link IgnoreRule#getResult() getResult()} for the result.
*/
public boolean isMatch(String target, boolean isDirectory) {
if (!target.startsWith("/"))
target = "/" + target;
if (matcher == null) {
if (target.equals(pattern)) {
//Exact match
if (dirOnly && !isDirectory)
//Directory expectations not met
return false;
else
//Directory expectations met
return true;
}
/*
* Add slashes for startsWith check. This avoids matching e.g.
* "/src/new" to /src/newfile" but allows "/src/new" to match
* "/src/new/newfile", as is the git standard
*/
if ((target).startsWith(pattern + "/"))
return true;
if (nameOnly) {
//Iterate through each sub-name
for (String folderName : target.split("/")) {
if (folderName.equals(pattern))
return true;
}
}
} else {
matcher.append(target);
if (matcher.isMatch())
return true;
if (nameOnly) {
for (String folderName : target.split("/")) {
//Iterate through each sub-directory
matcher.reset();
matcher.append(folderName);
if (matcher.isMatch())
return true;
}
} else {
//TODO: This is the slowest operation
//This matches e.g. "/src/ne?" to "/src/new/file.c"
matcher.reset();
for (String folderName : target.split("/")) {
if (folderName.length() > 0)
matcher.append("/" + folderName);
if (matcher.isMatch())
return true;
}
}
}
return false;
}
/**
* If a call to <code>isMatch(String, boolean)</code> was previously
* made, this will return whether or not the target was ignored. Otherwise
* this just indicates whether the rule is non-negation or negation.
*
* @return
* True if the target is to be ignored, false otherwise.
*/
public boolean getResult() {
return !negation;
}
}
|
