| 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.util.FileImpl;
26
27 import java.io.File;
28
29 /**
30 * <a href="CSSBuilder.java.html"><b><i>View Source</i></b></a>
31 *
32 * @author Brian Wing Shun Chan
33 *
34 */
35 public class CSSBuilder {
36
37 public static void main(String[] args) {
38 if (args.length == 2) {
39 new CSSBuilder(args[0], args[1]);
40 }
41 else {
42 throw new IllegalArgumentException();
43 }
44 }
45
46 public CSSBuilder(String cssDir, String mergedFile) {
47 try {
48 File mainCssFile = new File(cssDir + "/main.css");
49
50 if (!mainCssFile.exists()) {
51 System.out.println(
52 "Do not pack " + cssDir +
53 "/main.css because it does not exist.");
54
55 return;
56 }
57
58 FileImpl fileImpl = new FileImpl();
59
60 String content = fileImpl.read(mainCssFile);
61
62 content = replaceImports(cssDir, content);
63
64 fileImpl.write(mergedFile, content);
65 }
66 catch (Exception e) {
67 e.printStackTrace();
68 }
69 }
70
71 public String replaceImports(String cssDir, String s) throws Exception {
72 StringBuilder sb = new StringBuilder(s.length());
73
74 int pos = 0;
75
76 while (true) {
77 int x = s.indexOf(_BEGIN, pos);
78 int y = s.indexOf(_END, x + _BEGIN.length());
79
80 if ((x == -1) || (y == -1)) {
81 sb.append(s.substring(pos, s.length()));
82
83 break;
84 }
85 else {
86 sb.append(s.substring(pos, x));
87
88 String importFile = s.substring(x + _BEGIN.length(), y);
89
90 String importContent = _fileUtil.read(
91 cssDir + "/" + importFile);
92
93 String importFilePath = "";
94
95 if (importFile.lastIndexOf("/") != -1) {
96 importFilePath = "/" + importFile.substring(
97 0, importFile.lastIndexOf("/") + 1);
98 }
99
100 importContent = replaceImports(
101 cssDir + importFilePath, importContent);
102
103 sb.append(importContent);
104
105 pos = y + _END.length();
106 }
107 }
108
109 return sb.toString();
110 }
111
112 private static final String _BEGIN = "@import url(";
113
114 private static final String _END = ");";
115
116 private static FileImpl _fileUtil = new FileImpl();
117
118 }