1
22
23 package com.liferay.portal.tools;
24
25 import com.liferay.portal.util.FileImpl;
26
27 import java.io.File;
28
29
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 String content = _fileUtil.read(mainCssFile);
59
60 content = replaceImports(cssDir, content);
61
62 _fileUtil.write(mergedFile, content);
63 }
64 catch (Exception e) {
65 e.printStackTrace();
66 }
67 }
68
69 public String replaceImports(String cssDir, String s) throws Exception {
70 StringBuilder sb = new StringBuilder(s.length());
71
72 int pos = 0;
73
74 while (true) {
75 int x = s.indexOf(_BEGIN, pos);
76 int y = s.indexOf(_END, x + _BEGIN.length());
77
78 if ((x == -1) || (y == -1)) {
79 sb.append(s.substring(pos, s.length()));
80
81 break;
82 }
83 else {
84 sb.append(s.substring(pos, x));
85
86 String importFile = s.substring(x + _BEGIN.length(), y);
87
88 String importContent = _fileUtil.read(
89 cssDir + "/" + importFile);
90
91 String importFilePath = "";
92
93 if (importFile.lastIndexOf("/") != -1) {
94 importFilePath = "/" + importFile.substring(
95 0, importFile.lastIndexOf("/") + 1);
96 }
97
98 importContent = replaceImports(
99 cssDir + importFilePath, importContent);
100
101 sb.append(importContent);
102
103 pos = y + _END.length();
104 }
105 }
106
107 return sb.toString();
108 }
109
110 private static final String _BEGIN = "@import url(";
111
112 private static final String _END = ");";
113
114 private static FileImpl _fileUtil = FileImpl.getInstance();
115
116 }