1
22
23 package com.liferay.portal.tools;
24
25 import com.liferay.portal.kernel.util.StringMaker;
26 import com.liferay.util.FileUtil;
27
28 import java.io.File;
29
30
36 public class CSSBuilder {
37
38 public static void main(String[] args) {
39 if (args.length == 2) {
40 new CSSBuilder(args[0], args[1]);
41 }
42 else {
43 throw new IllegalArgumentException();
44 }
45 }
46
47 public CSSBuilder(String cssDir, String mergedFile) {
48 try {
49 File mainCssFile = new File(cssDir + "/main.css");
50
51 if (!mainCssFile.exists()) {
52 System.out.println(
53 "Do not pack " + cssDir +
54 "/main.css because it does not exist.");
55
56 return;
57 }
58
59 String content = FileUtil.read(mainCssFile);
60
61 content = replaceImports(cssDir, content);
62
63 FileUtil.write(mergedFile, content);
64 }
65 catch (Exception e) {
66 e.printStackTrace();
67 }
68 }
69
70 public String replaceImports(String cssDir, String s) throws Exception {
71 StringMaker sm = new StringMaker(s.length());
72
73 int pos = 0;
74
75 while (true) {
76 int x = s.indexOf(_BEGIN, pos);
77 int y = s.indexOf(_END, x + _BEGIN.length());
78
79 if ((x == -1) || (y == -1)) {
80 sm.append(s.substring(pos, s.length()));
81
82 break;
83 }
84 else {
85 sm.append(s.substring(pos, x));
86
87 String importFile = s.substring(x + _BEGIN.length(), y);
88
89 String importContent = FileUtil.read(cssDir + "/" + importFile);
90
91 importContent = replaceImports(cssDir, importContent);
92
93 sm.append(importContent);
94
95 pos = y + _END.length();
96 }
97 }
98
99 return sm.toString();
100 }
101
102 private static final String _BEGIN = "@import url(";
103
104 private static final String _END = ");";
105
106 }