source: XmlTools2/trunk/xmlpatch.cpp@ 915

Last change on this file since 915 was 910, checked in by s10k, 11 years ago

some more fixes
File size: 15.7 KB
Line 
1#include "xmlpatch.h"
2
3XmlPatch::XmlPatch(QString patchFilesWildcard, QString forceTargetFilesWildcard, bool noBackups)
4{
5 this->patchFilesToProcess=UtilXmlTools::getAllPatchFilesByWildcard(patchFilesWildcard);
6 this->forceTargetFilesWildcard=forceTargetFilesWildcard;
7 this->backupsEnabled=!noBackups;
8
9 if(forceTargetFilesWildcard!=""){
10 std::cout << "User forced patch in the target file(s): " << forceTargetFilesWildcard.toLatin1().constData() << std::endl;
11 }
12
13 if(this->patchFilesToProcess.isEmpty()){
14 UtilXmlTools::displayErrorMessage("Loading patch files","No .patch or .oni-patch files were found for the wildcard: "+patchFilesWildcard);
15 }
16
17}
18
19void XmlPatch::readAndProcessPatchFile(){
20
21 // Process all PatchFiles
22 for(int i=0; i<this->patchFilesToProcess.size(); i++){
23
24 QFile inputFile(this->patchFilesToProcess[i]);
25
26 if (inputFile.open(QIODevice::ReadOnly))
27 {
28
29 QTextStream fileStream(&inputFile);
30
31 checkPatchVersion(this->patchFilesToProcess[i], fileStream);
32 checkAndProcessValidCommands(fileStream);
33
34 inputFile.close();
35 }
36 else{
37 UtilXmlTools::displayErrorMessage("Read patch file", "Error opening patch file: '" + this->patchFilesToProcess[i] + "'.\n" + inputFile.errorString());
38 }
39
40 }
41
42 UtilXmlTools::displaySuccessMessage(this->patchFilesToProcess.size(),"Patch File(s)");
43
44}
45
46void XmlPatch::addToOperation(const QString &xmlString, XmlFilter &filters, const QString &filesWildcard){
47
48 QStringList filesToProcess;
49 pugi::xml_node nodeToInsertion;
50 pugi::xml_document newNode;
51 pugi::xml_parse_result result;
52
53 filesToProcess=UtilXmlTools::getAllXmlFilesByWildcard(filesWildcard);
54
55 if(filesToProcess.isEmpty()){
56 UtilXmlTools::displayErrorMessage("@ADD_INSIDE_NODE","No XML files were found for the wildcard: "+filesWildcard);
57 }
58
59 result=newNode.load(xmlString.toLatin1().constData()); // load xml to insert
60
61 if(result.status!=pugi::status_ok){
62 UtilXmlTools::displayErrorMessage("@ADD_INSIDE_NODE", "The xml node to insert is invalid.\n" + Util::toQString(result.description()));
63 }
64
65 // Process all XmlFiles
66 for(int i=0; i<filesToProcess.size(); i++){
67
68 UtilXmlTools::loadXmlFile(filesToProcess[i],this->document,this->rootNode,this->backupsEnabled,"@ADD_INSIDE_NODE");
69
70 nodeToInsertion=UtilXmlTools::getFirstNamedElements(this->rootNode,filters);
71
72 if(nodeToInsertion.type()==pugi::node_null){
73
74 QString errMessage;
75
76 errMessage = "It wasn't found a node with a ElementName: '" + filters.getElementName() + "'";
77 if(filters.getParentElementName()!=""){
78 errMessage += " and a ParentElementName: '" + filters.getParentElementName() + "'";
79 }
80 if(filters.getAttributeName()!=""){
81 errMessage += " and an AttributeName: '" + filters.getAttributeName() + "' and an AttributeValue: '" + filters.getAttributeValue() + "'";
82 }
83
84 UtilXmlTools::displayErrorMessage("@ADD_INSIDE_NODE",errMessage);
85 }
86
87 nodeToInsertion.prepend_copy(newNode.first_child()); // append the new node
88
89
90 UtilXmlTools::saveXmlFile(filesToProcess[i],this->document, "@ADD_INSIDE_NODE");
91 }
92
93 UtilXmlTools::displaySuccessMessage(filesToProcess.size(),"@ADD_INSIDE_NODE");
94}
95
96void XmlPatch::removeNodeOperation(XmlFilter &filters, const QString &filesWildcard){
97
98 QStringList filesToProcess;
99
100 pugi::xml_node nodeToDeletion;
101
102 filesToProcess=UtilXmlTools::getAllXmlFilesByWildcard(filesWildcard);
103
104 if(filesToProcess.isEmpty()){
105 UtilXmlTools::displayErrorMessage("@REMOVE_NODE","No XML files were found for the wildcard: "+filesWildcard);
106 }
107
108 // Process all XmlFiles
109 for(int i=0; i<filesToProcess.size(); i++){
110
111 UtilXmlTools::loadXmlFile(filesToProcess[i],this->document,this->rootNode,this->backupsEnabled,"@REMOVE_NODE");
112
113 nodeToDeletion=UtilXmlTools::getFirstNamedElements(this->rootNode,filters);
114
115 if(nodeToDeletion.type()==pugi::node_null){
116 QString errMessage;
117
118 errMessage = "It wasn't found a node with a ElementName: '" + filters.getElementName() + "'";
119 if(filters.getParentElementName()!=""){
120 errMessage += " and a ParentElementName: '" + filters.getParentElementName() + "'";
121 }
122 if(filters.getAttributeName()!=""){
123 errMessage += " and an AttributeName: '" + filters.getAttributeName() + "' and an AttributeValue: '" + filters.getAttributeValue() + "'";
124 }
125
126 UtilXmlTools::displayErrorMessage("@REMOVE_NODE",errMessage);
127 }
128
129 if(!nodeToDeletion.parent().remove_child(nodeToDeletion)){ // remove the node
130
131 QString errMessage;
132
133 errMessage = "Couldn't remove the node with Element '" + filters.getElementName() + "'";
134
135 if(filters.getParentElementName()!=""){
136 errMessage += " and a ParentElement: '" + filters.getParentElementName() + "'";
137 }
138
139 UtilXmlTools::displayErrorMessage("@REMOVE_NODE",errMessage);
140 }
141
142 UtilXmlTools::saveXmlFile(filesToProcess[i],this->document, "@REMOVE_NODE");
143 }
144
145 UtilXmlTools::displaySuccessMessage(filesToProcess.size(), "@REMOVE_NODE");
146}
147
148void XmlPatch::executeCommandOperation(const QString &commandString){
149
150 QProcess newXmlToolsInstance;
151 QString resultOutput;
152
153 // Avoid infinite fork loops
154 if(commandString.contains("-p") || commandString.contains("--patch-files")){
155 UtilXmlTools::displayErrorMessage("@COMMAND","Use of --patch-files option is not allowed inside a patch file");
156 }
157
158 newXmlToolsInstance.start(GlobalVars::AppName + " " + commandString);
159 newXmlToolsInstance.waitForFinished(-1); // wait for new instance to finish
160
161 resultOutput=newXmlToolsInstance.readAll();
162
163 if(newXmlToolsInstance.exitCode()!=0){
164 UtilXmlTools::displayErrorMessage("@COMMAND", "An error ocurred:\n" + resultOutput);
165 exit(1);
166 }
167
168 std::cout << "@COMMAND patch operation output:\n" << resultOutput.toLatin1().constData() << std::endl;
169
170 UtilXmlTools::displaySuccessMessage(1,"@COMMAND");
171}
172
173void XmlPatch::executeCustomCommandOperation(const QString &jsString, const QString &filesWildcard){
174
175 QStringList filesToProcess;
176#ifdef _USE_OLD_JS_ENGINE
177 QScriptEngine engine;
178 QScriptValue engineResult; // variable to check for js_errors
179#else
180 QJSEngine engine;
181 QJSValue engineResult; // variable to check for js_errors
182#endif
183
184 QString rexmlString, jsxmlString, currXmlFileString;
185
186
187 QFile rexmlfile(":/resources/libs/rexml.js");
188 QFile jsxmlfile(":/resources/libs/jsxml.js");
189
190 filesToProcess=UtilXmlTools::getAllXmlFilesByWildcard(filesWildcard);
191
192 if(filesToProcess.isEmpty()){
193 UtilXmlTools::displayErrorMessage("@CUSTOM_CODE","No XML files were found for the wildcard: "+filesWildcard);
194 }
195
196 rexmlfile.open(QFile::ReadOnly | QFile::Text);
197 jsxmlfile.open(QFile::ReadOnly | QFile::Text);
198
199 rexmlString=QTextStream(&rexmlfile).readAll();
200 jsxmlString=QTextStream(&jsxmlfile).readAll();
201
202 engine.evaluate(rexmlString); // load js libraries
203 engine.evaluate(jsxmlString);
204
205 // Process all XmlFiles
206 for(int i=0; i<filesToProcess.size(); i++){
207
208 if(this->backupsEnabled){
209 UtilXmlTools::backupFile(filesToProcess[i]);
210 }
211
212 QFile currXmlFile(filesToProcess[i]);
213
214 if(!currXmlFile.open(QFile::ReadOnly | QFile::Text)){
215 UtilXmlTools::displayErrorMessage("@CUSTOM_CODE","Error loading '" + filesToProcess[i] + "' file for read operation.");
216 }
217
218 currXmlFileString=QTextStream(&currXmlFile).readAll();
219
220 currXmlFile.close(); // close reading
221
222 engine.globalObject().setProperty("$xmlData",currXmlFileString);
223
224 engineResult=engine.evaluate(jsString);
225
226#ifdef _USE_OLD_JS_ENGINE
227 if (engine.hasUncaughtException()) {
228 displayJsException(engine,engineResult);
229 }
230#else
231 checkForJsException(engineResult);
232#endif
233
234 if(!currXmlFile.open(QFile::WriteOnly | QFile::Text | QIODevice::Truncate)){
235 UtilXmlTools::displayErrorMessage("@CUSTOM_CODE","Error loading '" + filesToProcess[i] + "' file for @CUSTOM_CODE write operation.");
236 }
237
238 engineResult=engine.globalObject().property("$xmlData");
239
240#ifdef _USE_OLD_JS_ENGINE
241 if (engine.hasUncaughtException()) {
242 displayJsException(engine,engineResult);
243 }
244#else
245 checkForJsException(engineResult);
246#endif
247
248 QTextStream(&currXmlFile) << engineResult.toString(); // retreive the modified xml by javascript and save it to the file
249 }
250
251 UtilXmlTools::displaySuccessMessage(filesToProcess.size(), "@CUSTOM_CODE");
252}
253
254void XmlPatch::checkPatchVersion(const QString &file, QTextStream &fileStream){
255
256 QString line, patchVersion="";
257
258 // First get the patch version and check it validity
259 while ( !fileStream.atEnd() ){
260 line = fileStream.readLine();
261
262 if(line.startsWith('#')){ // Ignore comments
263 continue;
264 }
265 else if(line.startsWith("@XML_TOOLS")){
266
267 patchVersion=getPatchParameterValue(line,"Version");
268
269 if(!patchVersion.startsWith("2.0")){
270 QString errMessage;
271
272 errMessage = "The current patch version is incompatible with this XmlTools version:\n";
273 errMessage += "Patch file name: '" + file + "'\n";
274 errMessage += "XmlTools version: " + GlobalVars::AppVersion + "\n" + "CurrPatch version: " + patchVersion + "";
275 UtilXmlTools::displayErrorMessage("@XML_TOOLS",errMessage);
276 }
277 break; // We have got what we wanted
278 }
279 }
280
281 if(patchVersion==""){
282 UtilXmlTools::displayErrorMessage("@XML_TOOLS","Patch version not found.");
283 }
284
285}
286
287void XmlPatch::checkAndProcessValidCommands(QTextStream &fileStream){
288
289 QString line, filesWildcard;
290 QString xmlToInsert, command, jsCode;
291 XmlFilter filters;
292
293 // Process the rest of the commands in patch file
294 while ( !fileStream.atEnd() ){
295 line = fileStream.readLine();
296
297 if(line.startsWith('#')){ // Ignore comments
298 continue;
299 }
300 else if(line.startsWith("@ADD_INSIDE_NODE")){
301 filters.setElementName(getPatchParameterValue(line,"ElementName"));
302 filters.setParentElementName(getPatchParameterValue(line,"ParentElementName"));
303 filters.setAttributeName(getPatchParameterValue(line,"AttributeName"));
304 filters.setAttributeValue(getPatchParameterValue(line,"AttributeValue"));
305
306 if(this->forceTargetFilesWildcard!=""){
307 filesWildcard=this->forceTargetFilesWildcard;
308 }
309 else{
310 filesWildcard=getPatchParameterValue(line,"Files");
311 }
312
313 // Check attribute filters
314 if(filters.getAttributeName()!="" && filters.getAttributeValue()==""){
315 UtilXmlTools::displayErrorMessage("@ADD_INSIDE_NODE","attribute-value option is required if using attribute-name option.");
316 }
317
318 if(filters.getAttributeValue()!="" && filters.getAttributeName()==""){
319 UtilXmlTools::displayErrorMessage("@ADD_INSIDE_NODE","attribute-name option is required if using attribute-value option.");
320 }
321
322 while ( !fileStream.atEnd() && !line.startsWith("</xml>")){
323 line = fileStream.readLine();
324
325 if(!line.startsWith("<xml>") && !line.startsWith("</xml>")){
326 xmlToInsert += line + "\n";
327 }
328 }
329
330 addToOperation(xmlToInsert,filters,filesWildcard);
331
332 }
333 else if(line.startsWith("@REMOVE_NODE")){
334
335 filters.setElementName(getPatchParameterValue(line,"ElementName"));
336 filters.setParentElementName(getPatchParameterValue(line,"ParentElementName"));
337 filters.setAttributeName(getPatchParameterValue(line,"AttributeName"));
338 filters.setAttributeValue(getPatchParameterValue(line,"AttributeValue"));
339
340 if(this->forceTargetFilesWildcard!=""){
341 filesWildcard=this->forceTargetFilesWildcard;
342 }
343 else{
344 filesWildcard=getPatchParameterValue(line,"Files");
345 }
346
347 // Check attribute filters
348 if(filters.getAttributeName()!="" && filters.getAttributeValue()==""){
349 UtilXmlTools::displayErrorMessage("@REMOVE_NODE","attribute-value option is required if using attribute-name option.");
350 }
351
352 if(filters.getAttributeValue()!="" && filters.getAttributeName()==""){
353 UtilXmlTools::displayErrorMessage("@REMOVE_NODE","attribute-name option is required if using attribute-value option.");
354 }
355
356 removeNodeOperation(filters,filesWildcard);
357
358 }
359 else if(line.startsWith("@COMMAND")){
360
361 command=getPatchParameterValue(line,"");
362
363 executeCommandOperation(command);
364 }
365 else if(line.startsWith("@CUSTOM_CODE")){
366
367 if(this->forceTargetFilesWildcard!=""){
368 filesWildcard=this->forceTargetFilesWildcard;
369 }
370 else{
371 filesWildcard=getPatchParameterValue(line,"Files");
372 }
373
374 while ( !fileStream.atEnd() && !line.startsWith("</code>")){
375
376 line = fileStream.readLine();
377
378 if(!line.startsWith("<code>") && !line.startsWith("</code>")){
379 jsCode += line + "\n";
380 }
381 }
382
383 executeCustomCommandOperation(jsCode,filesWildcard);
384 }
385 }
386}
387
388QString XmlPatch::getPatchParameterValue(const QString& line, QString parameter){
389
390 int startValueIdx, endValueIdx;
391
392 parameter+=" "; // Parameters include a space before it's value.
393
394 if(!line.contains(parameter)){
395 if(parameter=="ParentElementName " || parameter=="AttributeName " || parameter=="AttributeValue "){
396 return ""; // not mandatory
397 }
398 parameter.remove(" "); // just remove the space added so it doesn't look weird when outputted to the user
399
400 UtilXmlTools::displayErrorMessage("Read patch file parameter","Couldn't retreive '" + parameter + "' parameter.");
401 }
402
403 startValueIdx=line.indexOf(parameter); // get the position where parameter is defined
404 endValueIdx=line.indexOf("\"",startValueIdx)+1; // get the position where parameter value begins (+1 to ignore mandotory quote)
405
406 startValueIdx=endValueIdx;
407 endValueIdx=line.indexOf("\"",startValueIdx); // get the last mandatory quote of the value
408
409 return line.mid(startValueIdx,endValueIdx-startValueIdx); // return the value of the parameter (is in the middle of the mandatory quotes)
410}
411
412#ifdef _USE_OLD_JS_ENGINE
413void XmlPatch::displayJsException(QScriptEngine &engine, QScriptValue &engineResult){
414 if (engine.hasUncaughtException()) {
415 UtilXmlTools::displayErrorMessage("@CUSTOM_CODE","Uncaught js exception (user code) at line " +QString::number(engine.uncaughtExceptionLineNumber()) + ":\n" + engineResult.toString());
416 }
417}
418#else
419void XmlPatch::checkForJsException(QJSValue &engineResult){
420 if (engineResult.isError()) {
421 UtilXmlTools::displayErrorMessage("@CUSTOM_CODE","Uncaught js exception (user code):\n" + engineResult.toString());
422 }
423}
424#endif
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