| CSSBuilder.java |
1 /**
2 * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.portal.tools;
24
25 import com.liferay.portal.kernel.util.StringPool;
26 import com.liferay.portal.kernel.util.StringUtil;
27 import com.liferay.portal.util.FileImpl;
28
29 import java.io.File;
30
31 /**
32 * <a href="CSSBuilder.java.html"><b><i>View Source</i></b></a>
33 *
34 * @author Brian Wing Shun Chan
35 *
36 */
37 public class CSSBuilder {
38
39 public static void main(String[] args) {
40 if (args.length == 2) {
41 new CSSBuilder(args[0], args[1]);
42 }
43 else {
44 throw new IllegalArgumentException();
45 }
46 }
47
48 public CSSBuilder(String cssDir, String mergedFile) {
49 try {
50 File mainCssFile = new File(cssDir + "/main.css");
51
52 if (!mainCssFile.exists()) {
53 System.out.println(
54 "Do not pack " + cssDir +
55 "/main.css because it does not exist.");
56
57 return;
58 }
59
60 String content = _fileUtil.read(mainCssFile);
61
62 content = replaceImports(cssDir, content, 0);
63
64 _fileUtil.write(mergedFile, content);
65 }
66 catch (Exception e) {
67 e.printStackTrace();
68 }
69 }
70
71 public String replaceImports(String cssDir, String s, int level)
72 throws Exception {
73
74 StringBuilder sb = new StringBuilder(s.length());
75
76 int pos = 0;
77
78 while (true) {
79 int x = s.indexOf(_BEGIN, pos);
80 int y = s.indexOf(_END, x + _BEGIN.length());
81
82 if ((x == -1) || (y == -1)) {
83 sb.append(s.substring(pos, s.length()));
84
85 break;
86 }
87 else {
88 sb.append(s.substring(pos, x));
89
90 String importFile = s.substring(x + _BEGIN.length(), y);
91
92 String importContent = _fileUtil.read(
93 cssDir + "/" + importFile);
94
95 String importFilePath = "";
96
97 if (importFile.lastIndexOf("/") != -1) {
98 importFilePath = "/" + importFile.substring(
99 0, importFile.lastIndexOf("/") + 1);
100 }
101
102 importContent = replaceImports(
103 cssDir + importFilePath, importContent, level + 1);
104
105 // LEP-7540
106
107 String relativePath = StringPool.BLANK;
108
109 for (int i = 0; i < level; i++) {
110 relativePath += "../";
111 }
112
113 importContent = StringUtil.replace(
114 importContent,
115 new String[] {
116 "url('" + relativePath,
117 "url(\"" + relativePath,
118 "url(" + relativePath
119 },
120 new String[] {
121 "url('[$TEMP_RELATIVE_PATH$]",
122 "url(\"[$TEMP_RELATIVE_PATH$]",
123 "url([$TEMP_RELATIVE_PATH$]"
124 });
125
126 importContent = StringUtil.replace(
127 importContent, "[$TEMP_RELATIVE_PATH$]", StringPool.BLANK);
128
129 sb.append(importContent);
130
131 pos = y + _END.length();
132 }
133 }
134
135 return sb.toString();
136 }
137
138 private static final String _BEGIN = "@import url(";
139
140 private static final String _END = ");";
141
142 private static FileImpl _fileUtil = FileImpl.getInstance();
143
144 }