1 // <script type="text/javascript">
2 XObject = imports.XObject.XObject;
3 File = imports.File.File;
5 TextStream = imports['JSDOC/TextStream.js'].TextStream;
6 TokenReader = imports['JSDOC/TokenReader.js'].TokenReader;
7 ScopeParser = imports['JSDOC/ScopeParser.js'].ScopeParser;
8 TokenStream = imports['JSDOC/TokenStream.js'].TokenStream;
9 CompressWhite = imports['JSDOC/CompressWhite.js'].CompressWhite;
11 GLib = imports.gi.GLib;
23 Packer = imports['JSDOC/Packer.js'].Packer;
26 files : [ "/location/of/file1.js", "/location/of/file2.js", ... ],
27 target : "/tmp/output.js",
28 debugTarget : "/tmp/output.debug.js", // merged file without compression.
29 translateJSON: "/tmp/translate.json",
34 "/location/of/temp_batch_dir",
35 "/location/of/output-compacted-file.js",
36 "/location/of/output-debug-merged-file.js"
41 * Notes for improving compacting:
42 * if you add a jsdoc comment
49 * directly before an eval statement, it will compress all the code around the eval,
50 * and not rename the variables 'avarname'
52 * Dont try running this on a merged uncompressed large file - it's used to be horrifically slow. not sure about now..
53 * Best to use lot's of small classes, and use it to merge, as it will cache the compaction
57 * Notes for translation
58 * - translation relies on you using double quotes for strings if they need translating
59 * - single quoted strings are ignored.
61 * Generation of indexFiles
62 * - translateIndex = the indexfile
69 Packer = function(cfg)
72 XObject.extend(this, cfg);
78 this.timer = new Date() * 1;
85 * @prop files {Array} list of files to compress (must be full path)
89 * @prop target {String} target to write files to - must be full path.
93 * @prop debugTarget {String} target to write files debug version to (uncompacted)- must be full path.
95 debugTarget : '', // merged file without compression.
97 * @prop tmpDir {String} (optional) where to put the temporary files.
98 * if you set this, then files will not be cleaned up
102 translateJSON : '', // json based list of strings in all files.
105 * @prop cleanup {Boolean} (optional) clean up temp files after done -
106 * Defaults to false if you set tmpDir, otherwise true.
111 out : '', // if no target is specified - then this will contain the result
113 packAll : function() // do the packing (run from constructor)
116 //this.transOrigFile= bpath + '/../lang.en.js'; // needs better naming...
117 //File.write(this.transfile, "");
119 File.write(this.target, "");
122 if (this.debugTarget) {
123 File.write(this.debugTarget, "");
126 for(var i=0; i < this.files.length; i++) {
127 var file = this.files[i];
129 print("reading " +file );
130 if (!File.isFile(file)) {
131 print("SKIP (is not a file) " + file);
135 if (this.debugTarget) {
136 File.append(this.debugTarget, File.read(file));
138 // it's a good idea to check with 0 compression to see if the code can parse!!
141 //File.append(dout, str +"\n");
145 var minfile = this.tmpDir + '/' +file.replace(/\//g, '.');
148 // let's see if we have a min file already?
149 // this might happen if tmpDir is set ..
150 if (true && File.exists(minfile)) {
151 var mt = File.mtime(minfile);
152 var ot = File.mtime(file);
153 print("compare : " + mt + "=>" + ot);
157 // then the min'files time is > than original..
158 var str = File.read(minfile);
159 print("using MIN FILE "+ minfile);
161 File.append(outpath, str + "\n");
170 print("COMPRESSING ");
171 //var codeComp = pack(str, 10, 0, 0);
172 if (File.exists(minfile)) {
173 File.remove(minfile);
175 var str = File.read(file);
176 var str = this.pack(str, file, minfile);
178 File.write(minfile, str);
184 if (this.translateJSON) {
187 print("MERGING LANGUAGE");
188 var out = "if (typeof(_T) == 'undefined') { _T={};}\n"
190 File.write(this.target, out);
197 File.write(this.translateJSON, "");
198 for(var i=0; i < this.files.length; i++) {
199 var file = this.files[i];
200 var transfile= this.tmpDir + '/' +file.replace(/\//g, '.') +'.lang.trans';
201 var transmd5 = this.tmpDir + '/' +file.replace(/\//g, '.') +'.lang';
202 if (File.exists(transmd5)) {
203 var str = File.read(transmd5);
206 File.append(this.target, str + "\n");
208 this.out += str + "\n";
213 File.remove(transmd5);
216 if (File.exists(transfile)) {
217 var str = File.read(transfile);
219 File.append(this.translateJSON, str);
222 File.remove(transfile);
230 print("MERGING SOURCE");
232 for(var i=0; i < this.files.length; i++) {
233 var file = this.files[i];
234 var minfile = this.tmpDir + '/' + file.replace(/\//g, '.');
237 if (!File.exists(minfile)) {
240 var str = File.read(minfile);
241 print("using MIN FILE "+ minfile);
244 File.append(this.target, str + "\n");
246 this.out += str + "\n";
251 File.remove(minfile);
261 * Core packing routine for a file
263 * @param str - str source text..
264 * @param fn - filename (for reference?)
265 * @param minfile - min file location...
269 pack : function (str,fn,minfile)
272 var tr = new TokenReader( { keepDocs :true, keepWhite : true, keepComments : true, sepIdents : true });
273 this.timerPrint("START" + fn);
275 // we can load translation map here...
277 var toks = tr.tokenize(new TextStream(str)); // dont merge xxx + . + yyyy etc.
279 // at this point we can write a language file...
280 if (this.translateJSON) {
281 this.writeTranslateFile(fn, minfile, tr.translateMap);
284 this.activeFile = fn;
286 // and replace if we are generating a different language..
288 this.timerPrint("Tokenized");
290 var sp = new ScopeParser(new TokenStream(toks));
291 this.timerPrint("Converted to Parser");
293 sp.buildSymbolTree();
294 this.timerPrint("Built Sym tree");
295 sp.mungeSymboltree();
296 this.timerPrint("Munged Sym tree");
297 print(sp.warnings.join("\n"));
298 var out = CompressWhite(sp.ts, this);
299 this.timerPrint("Compressed");
306 timerPrint: function (str) {
307 var ntime = new Date() * 1;
308 var tdif = ntime -this.timer;
310 print('['+tdif+']'+str);
315 * Translation concept...
316 * -> replace text strings with _T....
317 * -> this file will need inserting at the start of the application....
318 * -> we need to generate 2 files,
319 * -> a reference used to do the translation, and the _T file..
323 writeTranslateFile : function(fn, minfile, map)
325 var transfile = minfile + '.lang.trans';
326 var transmd5 = minfile + '.lang';
329 if (File.exists(transfile)) {
330 File.remove(transfile);
332 if (File.exists(transmd5)) {
333 File.remove(transmd5);
335 for(v in map) { i++; break };
337 return; // no strings in file...
339 var ff = fn.split('/');
340 var ffn = ff[ff.length-1];
343 File.write(transfile, "\n" + ffn.toSource() + " : {");
347 File.write(transmd5, '');
349 File.append(transfile, l + "\n\t \"" + v + '" : "' + v + '"');
351 // strings are raw... - as the where encoded to start with!!!
352 File.append(transmd5, '_T["' + this.md5(ffn + '-' + v) + '"]="'+v+"\";\n");
354 File.append(transfile, "\n},"); // always one trailing..
358 md5 : function (string)
361 return GLib.compute_checksum_for_string(GLib.ChecksumType.MD5, string, string.length);
364 stringHandler : function(tok)
366 //print("STRING HANDLER");
367 // callback when outputing compressed file,
368 var data = tok.outData !== false ? tok.outData : tok.data;
369 if (!this.translateJSON) {
370 // print("TURNED OFF");
373 if (tok.name == SINGLE_QUOTE) {
377 var sval = data.substring(1,data.length-1);
378 // we do not clean up... quoting here!??!!?!?!?!?
381 // blank with tabs or spaces..
382 //if (!sval.replace(new RegExp("(\\\\n|\\\\t| )+",'g'), '').length) {
383 // return tok.outData;
389 var ff = this.activeFile.split('/');
390 var ffn = ff[ff.length-1];
391 return '_T["' + this.md5(ffn + '-' + sval) + '"]';