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1 | /** @file\r | |
2 | This file is to wrap MakeDeps.exe tool as ANT task, which is used to generate\r | |
3 | dependency files for source code.\r | |
4 | \r | |
5 | Copyright (c) 2006, Intel Corporation\r | |
6 | All rights reserved. This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | package org.tianocore.framework.tasks;\r | |
16 | \r | |
17 | import java.io.BufferedInputStream;\r | |
18 | import java.io.BufferedReader;\r | |
19 | import java.io.BufferedWriter;\r | |
20 | import java.io.File;\r | |
21 | import java.io.FileInputStream;\r | |
22 | import java.io.FileReader;\r | |
23 | import java.io.FileWriter;\r | |
24 | import java.io.IOException;\r | |
25 | import java.io.LineNumberReader;\r | |
26 | import java.util.HashMap;\r | |
27 | import java.util.HashSet;\r | |
28 | import java.util.Iterator;\r | |
29 | import java.util.LinkedHashSet;\r | |
30 | import java.util.List;\r | |
31 | import java.util.Set;\r | |
32 | import java.util.Stack;\r | |
33 | import java.util.regex.Matcher;\r | |
34 | import java.util.regex.Pattern;\r | |
35 | \r | |
36 | import org.apache.tools.ant.BuildException;\r | |
37 | import org.apache.tools.ant.Task;\r | |
38 | import org.tianocore.common.cache.FileTimeStamp;\r | |
39 | import org.tianocore.common.logger.EdkLog;\r | |
40 | \r | |
41 | /**\r | |
42 | Class MakeDeps is used to wrap MakeDeps.exe as an ANT task.\r | |
43 | **/\r | |
44 | public class MakeDeps extends Task {\r | |
45 | \r | |
46 | //\r | |
47 | // private members, use set/get to access them\r | |
48 | //\r | |
49 | private String targetFile = "";\r | |
50 | private String depsFilePath = "";\r | |
51 | private IncludePath includePathList = new IncludePath();\r | |
52 | private Input inputFileList = new Input();\r | |
53 | //\r | |
54 | // cache the including files to speed up dependency check\r | |
55 | // \r | |
56 | private static HashMap<String, Set<String>> includesCache = new HashMap<String, Set<String>>();\r | |
57 | //\r | |
58 | // regular expression for "#include ..." directive\r | |
59 | // \r | |
60 | private static final Pattern incPattern = Pattern.compile("[\n\r \t#]*include[ \t]+[\"<]*([^\n\r\"<>]+)[>\" \t]*");\r | |
61 | \r | |
62 | public MakeDeps() {\r | |
63 | \r | |
64 | }\r | |
65 | \r | |
66 | /**\r | |
67 | The Standard execute method for ANT task. It will check if it's necessary\r | |
68 | to generate the dependency list file. If no file is found or the dependency\r | |
69 | is changed, it will compose the command line and call MakeDeps.exe to\r | |
70 | generate the dependency list file.\r | |
71 | \r | |
72 | @throws BuildException\r | |
73 | **/\r | |
74 | public void execute() throws BuildException {\r | |
75 | //\r | |
76 | // if target file is specified and it hasn't been generated, don't generate\r | |
77 | // dep file\r | |
78 | // \r | |
79 | if (targetFile.length() != 0 && (new File(targetFile)).exists() == false) {\r | |
80 | return;\r | |
81 | }\r | |
82 | //\r | |
83 | // check if the dependency list file is uptodate or not\r | |
84 | //\r | |
85 | if (isUptodate()) {\r | |
86 | return;\r | |
87 | }\r | |
88 | \r | |
89 | //\r | |
90 | // if no include path is specified, try locally\r | |
91 | // \r | |
92 | if (includePathList.isEmpty()) {\r | |
93 | includePathList.insPath(".");\r | |
94 | }\r | |
95 | \r | |
96 | Set<String> depFiles = getDependencies(inputFileList.toArray());\r | |
97 | \r | |
98 | File depsFile = new File(depsFilePath);\r | |
99 | FileWriter fileWriter = null;\r | |
100 | BufferedWriter bufWriter = null;\r | |
101 | \r | |
102 | try {\r | |
103 | fileWriter = new FileWriter(depsFile);\r | |
104 | bufWriter = new BufferedWriter(fileWriter);\r | |
105 | \r | |
106 | \r | |
107 | for (Iterator it = depFiles.iterator(); it.hasNext();) {\r | |
108 | String depFile = (String)it.next();\r | |
109 | bufWriter.write(depFile, 0, depFile.length());\r | |
110 | bufWriter.write("\n", 0, 1);\r | |
111 | }\r | |
112 | //\r | |
113 | // put a "tab" at the end of file as file ending flag\r | |
114 | // \r | |
115 | bufWriter.write("\t", 0, 1);\r | |
116 | } catch (Exception e) {\r | |
117 | throw new BuildException(e.getMessage());\r | |
118 | } finally {\r | |
119 | try {\r | |
120 | if (bufWriter != null) {\r | |
121 | bufWriter.close();\r | |
122 | }\r | |
123 | if (fileWriter != null) {\r | |
124 | fileWriter.close();\r | |
125 | }\r | |
126 | } catch (Exception e) {\r | |
127 | throw new BuildException(e.getMessage());\r | |
128 | }\r | |
129 | }\r | |
130 | \r | |
131 | //\r | |
132 | // update time stamp of dependency file\r | |
133 | // \r | |
134 | FileTimeStamp.update(depsFilePath, depsFile.lastModified());\r | |
135 | }\r | |
136 | \r | |
137 | public void setTargetFile(String name) {\r | |
138 | targetFile = name;\r | |
139 | }\r | |
140 | \r | |
141 | public String getTargetFile() {\r | |
142 | return targetFile;\r | |
143 | }\r | |
144 | \r | |
145 | /**\r | |
146 | Set method for "DepsFile" attribute\r | |
147 | \r | |
148 | @param name The name of dependency list file\r | |
149 | **/\r | |
150 | public void setDepsFile(String name) {\r | |
151 | depsFilePath = name;\r | |
152 | }\r | |
153 | \r | |
154 | /**\r | |
155 | Get method for "DepsFile" attribute\r | |
156 | \r | |
157 | @returns The name of dependency list file\r | |
158 | **/\r | |
159 | public String getDepsFile() {\r | |
160 | return depsFilePath;\r | |
161 | }\r | |
162 | \r | |
163 | /**\r | |
164 | Add method for "IncludePath" nested element\r | |
165 | \r | |
166 | @param path The IncludePath object from nested IncludePath type of element\r | |
167 | **/\r | |
168 | public void addConfiguredIncludepath(IncludePath path) {\r | |
169 | includePathList.insert(path);\r | |
170 | }\r | |
171 | \r | |
172 | /**\r | |
173 | Add method for "Input" nested element\r | |
174 | \r | |
175 | @param input The Input object from nested Input type of element\r | |
176 | **/\r | |
177 | public void addConfiguredInput(Input inputFile) {\r | |
178 | inputFileList.insert(inputFile);\r | |
179 | }\r | |
180 | \r | |
181 | /**\r | |
182 | Check if the dependency list file should be (re-)generated or not.\r | |
183 | \r | |
184 | @returns true The dependency list file is uptodate. No re-generation is needed.\r | |
185 | @returns false The dependency list file is outofdate. Re-generation is needed.\r | |
186 | **/\r | |
187 | private boolean isUptodate() {\r | |
188 | File df = new File(depsFilePath);\r | |
189 | if (!df.exists()) {\r | |
190 | EdkLog.log(this, EdkLog.EDK_VERBOSE, depsFilePath + " doesn't exist!");\r | |
191 | return false;\r | |
192 | }\r | |
193 | \r | |
194 | //\r | |
195 | // If the source file(s) is newer than dependency list file, we need to\r | |
196 | // re-generate the dependency list file\r | |
197 | //\r | |
198 | long depsFileTimeStamp = FileTimeStamp.get(depsFilePath);\r | |
199 | List<String> fileList = inputFileList.getNameList();\r | |
200 | for (int i = 0, length = fileList.size(); i < length; ++i) {\r | |
201 | String sf = fileList.get(i);\r | |
202 | if (FileTimeStamp.get(sf) > depsFileTimeStamp) {\r | |
203 | EdkLog.log(this, EdkLog.EDK_VERBOSE, sf + " has been changed since last build!");\r | |
204 | return false;\r | |
205 | }\r | |
206 | }\r | |
207 | \r | |
208 | //\r | |
209 | // If the source files haven't been changed since last time the dependency\r | |
210 | // list file was generated, we need to check each file in the file list to\r | |
211 | // see if any of them is changed or not. If anyone of them is newer than\r | |
212 | // the dependency list file, MakeDeps.exe is needed to run again.\r | |
213 | //\r | |
214 | LineNumberReader lineReader = null;\r | |
215 | FileReader fileReader = null;\r | |
216 | boolean ret = false;\r | |
217 | try {\r | |
218 | fileReader = new FileReader(df);\r | |
219 | lineReader = new LineNumberReader(fileReader);\r | |
220 | \r | |
221 | String line = null;\r | |
222 | int lines = 0;\r | |
223 | while ((line = lineReader.readLine()) != null) {\r | |
224 | //\r | |
225 | // check file end flag "\t" to see if the .dep was generated correctly\r | |
226 | // \r | |
227 | if (line.equals("\t")) {\r | |
228 | ret = true;\r | |
229 | continue;\r | |
230 | }\r | |
231 | line = line.trim();\r | |
232 | //\r | |
233 | // skip empty line\r | |
234 | // \r | |
235 | if (line.length() == 0) {\r | |
236 | continue;\r | |
237 | }\r | |
238 | ++lines;\r | |
239 | \r | |
240 | //\r | |
241 | // If a file cannot be found (moved or removed) or newer, regenerate the dep file\r | |
242 | // \r | |
243 | File sourceFile = new File(line);\r | |
244 | if ((!sourceFile.exists()) || (FileTimeStamp.get(line) > depsFileTimeStamp)) {\r | |
245 | EdkLog.log(this, EdkLog.EDK_VERBOSE, sourceFile.getPath() + " has been (re)moved or changed since last build!");\r | |
246 | ret = false;\r | |
247 | break;\r | |
248 | }\r | |
249 | }\r | |
250 | \r | |
251 | //\r | |
252 | // check if the .dep file is empty\r | |
253 | // \r | |
254 | if (lines == 0) {\r | |
255 | EdkLog.log(this, EdkLog.EDK_VERBOSE, depsFilePath + " is empty!");\r | |
256 | ret = false;\r | |
257 | }\r | |
258 | } catch (IOException e) {\r | |
259 | throw new BuildException(e.getMessage());\r | |
260 | } finally {\r | |
261 | try {\r | |
262 | if (lineReader != null) {\r | |
263 | lineReader.close();\r | |
264 | }\r | |
265 | if (fileReader != null) {\r | |
266 | fileReader.close();\r | |
267 | }\r | |
268 | } catch (Exception e) {\r | |
269 | throw new BuildException(e.getMessage());\r | |
270 | }\r | |
271 | }\r | |
272 | \r | |
273 | return ret;\r | |
274 | }\r | |
275 | \r | |
276 | //\r | |
277 | // get dependent files list by parsing "#include" directive\r | |
278 | // \r | |
279 | private synchronized Set<String> getDependencies(String[] sourceFiles) {\r | |
280 | Set<String> dependencies = new LinkedHashSet<String>();\r | |
281 | String[] searchPathList = includePathList.toArray();\r | |
282 | \r | |
283 | Stack<String> pendingFiles = new Stack<String>();\r | |
284 | for (int i = 0; i < sourceFiles.length; ++i) {\r | |
285 | File srcFile = new File(sourceFiles[i]);\r | |
286 | if (srcFile.exists()) {\r | |
287 | //\r | |
288 | // a file must depend itself\r | |
289 | // \r | |
290 | dependencies.add(srcFile.getAbsolutePath());\r | |
291 | pendingFiles.push(sourceFiles[i]);\r | |
292 | }\r | |
293 | }\r | |
294 | \r | |
295 | while (!pendingFiles.empty()) {\r | |
296 | String src = pendingFiles.pop();\r | |
297 | File srcFile = new File(src);\r | |
298 | int fileLength = (int)srcFile.length();\r | |
299 | if (!srcFile.exists() || fileLength == 0) {\r | |
300 | continue;\r | |
301 | }\r | |
302 | //\r | |
303 | // try cache first\r | |
304 | // \r | |
305 | Set<String> incFiles = includesCache.get(src);\r | |
306 | if (incFiles == null) {\r | |
307 | incFiles = new HashSet<String>();\r | |
308 | FileInputStream fileReader = null;\r | |
309 | BufferedInputStream bufReader = null;\r | |
310 | String fileContent = "";\r | |
311 | \r | |
312 | try {\r | |
313 | fileReader = new FileInputStream(srcFile);\r | |
314 | bufReader = new BufferedInputStream(fileReader);\r | |
315 | byte[] buf = new byte[fileLength];\r | |
316 | \r | |
317 | bufReader.read(buf, 0, fileLength);\r | |
318 | //\r | |
319 | // check if the file is utf-16 encoded\r | |
320 | // \r | |
321 | if (buf[0] == (byte)0xff || buf[0] == (byte)0xfe) {\r | |
322 | fileContent = new String(buf, "UTF-16");\r | |
323 | buf = fileContent.getBytes("UTF-8");\r | |
324 | }\r | |
325 | fileContent = new String(buf);\r | |
326 | } catch (IOException e) {\r | |
327 | throw new BuildException(e.getMessage());\r | |
328 | } finally {\r | |
329 | try {\r | |
330 | if (bufReader != null) {\r | |
331 | bufReader.close();\r | |
332 | }\r | |
333 | if (fileReader != null) {\r | |
334 | fileReader.close();\r | |
335 | }\r | |
336 | } catch (Exception e) {\r | |
337 | throw new BuildException(e.getMessage());\r | |
338 | }\r | |
339 | }\r | |
340 | \r | |
341 | //\r | |
342 | // find out all "#include" lines\r | |
343 | // \r | |
344 | Matcher matcher = incPattern.matcher(fileContent);\r | |
345 | while (matcher.find()) {\r | |
346 | String incFilePath = fileContent.substring(matcher.start(1), matcher.end(1));\r | |
347 | incFiles.add(incFilePath);\r | |
348 | }\r | |
349 | \r | |
350 | //\r | |
351 | // put the includes in cache to avoid re-parsing\r | |
352 | // \r | |
353 | includesCache.put(src, incFiles);\r | |
354 | }\r | |
355 | \r | |
356 | //\r | |
357 | // try each include search path to see if the include file exists or not\r | |
358 | // \r | |
359 | for (Iterator<String> it = incFiles.iterator(); it.hasNext();) {\r | |
360 | String depFilePath = it.next();\r | |
361 | \r | |
362 | for (int i = 0; i < searchPathList.length; ++i) {\r | |
363 | File depFile = new File(searchPathList[i] + File.separator + depFilePath);\r | |
364 | String filePath = depFile.getAbsolutePath();\r | |
365 | //\r | |
366 | // following check is a must. it can prevent dead loop if two\r | |
367 | // files include each other\r | |
368 | // \r | |
369 | if (depFile.exists() && !dependencies.contains(filePath)) {\r | |
370 | dependencies.add(filePath);\r | |
371 | pendingFiles.push(filePath);\r | |
372 | break;\r | |
373 | }\r | |
374 | }\r | |
375 | }\r | |
376 | }\r | |
377 | \r | |
378 | return dependencies;\r | |
379 | }\r | |
380 | }\r | |
381 | \r |