1
22
23 package com.liferay.portal.tools;
24
25 import com.liferay.portal.kernel.util.FileUtil;
26 import com.liferay.portal.kernel.util.StringPool;
27 import com.liferay.portal.kernel.util.StringUtil;
28 import com.liferay.portal.util.InitUtil;
29
30 import java.io.File;
31
32
38 public class CSSBuilder {
39
40 public static void main(String[] args) {
41 InitUtil.initWithSpring();
42
43 if (args.length == 2) {
44 new CSSBuilder(args[0], args[1]);
45 }
46 else {
47 throw new IllegalArgumentException();
48 }
49 }
50
51 public CSSBuilder(String cssDir, String mergedFile) {
52 try {
53 File mainCssFile = new File(cssDir + "/main.css");
54
55 if (!mainCssFile.exists()) {
56 System.out.println(
57 "Do not pack " + cssDir +
58 "/main.css because it does not exist.");
59
60 return;
61 }
62
63 String content = FileUtil.read(mainCssFile);
64
65 content = replaceImports(cssDir, content, 0);
66
67 FileUtil.write(mergedFile, content);
68 }
69 catch (Exception e) {
70 e.printStackTrace();
71 }
72 }
73
74 public String replaceImports(String cssDir, String s, int level)
75 throws Exception {
76
77 StringBuilder sb = new StringBuilder(s.length());
78
79 int pos = 0;
80
81 while (true) {
82 int x = s.indexOf(_BEGIN, pos);
83 int y = s.indexOf(_END, x + _BEGIN.length());
84
85 if ((x == -1) || (y == -1)) {
86 sb.append(s.substring(pos, s.length()));
87
88 break;
89 }
90 else {
91 sb.append(s.substring(pos, x));
92
93 String importFile = s.substring(x + _BEGIN.length(), y);
94
95 String importContent = FileUtil.read(cssDir + "/" + importFile);
96
97 String importFilePath = "";
98
99 if (importFile.lastIndexOf("/") != -1) {
100 importFilePath = "/" + importFile.substring(
101 0, importFile.lastIndexOf("/") + 1);
102 }
103
104 importContent = replaceImports(
105 cssDir + importFilePath, importContent, level + 1);
106
107
109 String relativePath = StringPool.BLANK;
110
111 for (int i = 0; i < level; i++) {
112 relativePath += "../";
113 }
114
115 importContent = StringUtil.replace(
116 importContent,
117 new String[] {
118 "url('" + relativePath,
119 "url(\"" + relativePath,
120 "url(" + relativePath
121 },
122 new String[] {
123 "url('[$TEMP_RELATIVE_PATH$]",
124 "url(\"[$TEMP_RELATIVE_PATH$]",
125 "url([$TEMP_RELATIVE_PATH$]"
126 });
127
128 importContent = StringUtil.replace(
129 importContent, "[$TEMP_RELATIVE_PATH$]", StringPool.BLANK);
130
131 sb.append(importContent);
132
133 pos = y + _END.length();
134 }
135 }
136
137 return sb.toString();
138 }
139
140 private static final String _BEGIN = "@import url(";
141
142 private static final String _END = ");";
143
144 }