1 // <script type="text/javascript">
2 XObject = imports.XObject.XObject;
3 File = imports.File.File;
5 TextStream = imports.TextStream.TextStream;
6 TokenReader = imports.TokenReader.TokenReader;
7 ScopeParser = imports.ScopeParser.ScopeParser;
8 TokenStream = imports.TokenStream.TokenStream;
9 CompressWhite = imports.CompressWhite.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);
75 this.loadSourceFile();
83 this.timer = new Date() * 1;
90 * @prop srcfiles {String} file containing a list of files/or classes to use.
95 * @prop files {Array} list of files to compress (must be full path)
99 * @prop target {String} target to write files to - must be full path.
103 * @prop debugTarget {String} target to write files debug version to (uncompacted)- must be full path.
105 debugTarget : '', // merged file without compression.
107 * @prop tmpDir {String} (optional) where to put the temporary files.
108 * if you set this, then files will not be cleaned up
112 translateJSON : '', // json based list of strings in all files.
115 * @prop cleanup {Boolean} (optional) clean up temp files after done -
116 * Defaults to false if you set tmpDir, otherwise true.
121 * @prop prefix {String} (optional) prefix of directory to be stripped of when
122 * Calculating md5 of filename
125 out : '', // if no target is specified - then this will contain the result
128 loadSourceFile : function()
130 var lines = File.read(this.srcfile).split("\n");
132 lines.forEach(function(f) {
134 if (/^\s*\//.test(f) || !/[a-z]+/i.test(f)) { // skip comments..
137 if (/\.js$/.test(f)) {
138 _this.files.push( f);
143 //println("ADD"+ f.replace(/\./g, '/'));
144 var add = f.replace(/\./g, '/').replace(/\s+/g,'')+'.js';
145 if (_this.files.indexOf(f) > -1) {
148 _this.files.push( add );
154 packAll : function() // do the packing (run from constructor)
157 //this.transOrigFile= bpath + '/../lang.en.js'; // needs better naming...
158 //File.write(this.transfile, "");
160 File.write(this.target, "");
163 if (this.debugTarget) {
164 File.write(this.debugTarget, "");
167 for(var i=0; i < this.files.length; i++) {
168 var file = this.files[i];
170 print("reading " +file );
171 if (!File.isFile(file)) {
172 print("SKIP (is not a file) " + file);
176 if (this.debugTarget) {
177 File.append(this.debugTarget, File.read(file));
179 // it's a good idea to check with 0 compression to see if the code can parse!!
182 //File.append(dout, str +"\n");
186 var minfile = this.tmpDir + '/' +file.replace(/\//g, '.');
189 // let's see if we have a min file already?
190 // this might happen if tmpDir is set ..
191 if (true && File.exists(minfile)) {
192 var mt = File.mtime(minfile);
193 var ot = File.mtime(file);
194 print("compare : " + mt + "=>" + ot);
198 // then the min'files time is > than original..
199 var str = File.read(minfile);
200 print("using MIN FILE "+ minfile);
202 File.append(outpath, str + "\n");
211 print("COMPRESSING ");
212 //var codeComp = pack(str, 10, 0, 0);
213 if (File.exists(minfile)) {
214 File.remove(minfile);
216 var str = File.read(file);
217 var str = this.pack(str, file, minfile);
219 File.write(minfile, str);
225 if (this.translateJSON) {
228 print("MERGING LANGUAGE");
229 var out = "if (typeof(_T) == 'undefined') { _T={};}\n"
231 File.write(this.target, out);
238 File.write(this.translateJSON, "");
239 for(var i=0; i < this.files.length; i++) {
240 var file = this.files[i];
241 var transfile= this.tmpDir + '/' +file.replace(/\//g, '.') +'.lang.trans';
242 var transmd5 = this.tmpDir + '/' +file.replace(/\//g, '.') +'.lang';
243 if (File.exists(transmd5)) {
244 var str = File.read(transmd5);
247 File.append(this.target, str + "\n");
249 this.out += str + "\n";
254 File.remove(transmd5);
257 if (File.exists(transfile)) {
258 var str = File.read(transfile);
260 File.append(this.translateJSON, str);
263 File.remove(transfile);
271 print("MERGING SOURCE");
273 for(var i=0; i < this.files.length; i++) {
274 var file = this.files[i];
275 var minfile = this.tmpDir + '/' + file.replace(/\//g, '.');
278 if (!File.exists(minfile)) {
281 var str = File.read(minfile);
282 print("using MIN FILE "+ minfile);
285 File.append(this.target, str + "\n");
287 this.out += str + "\n";
292 File.remove(minfile);
302 * Core packing routine for a file
304 * @param str - str source text..
305 * @param fn - filename (for reference?)
306 * @param minfile - min file location...
310 pack : function (str,fn,minfile)
313 var tr = new TokenReader( {
319 this.timerPrint("START" + fn);
321 // we can load translation map here...
323 var toks = tr.tokenize(new TextStream(str)); // dont merge xxx + . + yyyy etc.
325 // at this point we can write a language file...
326 if (this.translateJSON) {
328 this.writeTranslateFile(fn, minfile, toks);
331 this.activeFile = fn;
333 // and replace if we are generating a different language..
335 this.timerPrint("Tokenized");
336 var ts = new TokenStream(toks);
339 var sp = new ScopeParser(ts);
340 this.timerPrint("Converted to Parser");
342 sp.buildSymbolTree();
343 this.timerPrint("Built Sym tree");
344 sp.mungeSymboltree();
345 this.timerPrint("Munged Sym tree");
346 print(sp.warnings.join("\n"));
347 var out = CompressWhite(sp.ts, this);
348 this.timerPrint("Compressed");
355 timerPrint: function (str) {
356 var ntime = new Date() * 1;
357 var tdif = ntime -this.timer;
359 print('['+tdif+']'+str);
364 * Translation concept...
365 * -> replace text strings with _T....
366 * -> this file will need inserting at the start of the application....
367 * -> we need to generate 2 files,
368 * -> a reference used to do the translation, and the _T file..
372 writeTranslateFile : function(fn, minfile, toks)
377 toks.forEach(function (t) {
378 if (t.type == 'STRN' && t.name == 'DOUBLE_QUOTE') {
379 var sval = t.data.substring(1,t.data.length-1);
380 var ffn = fn.substring(_this.prefix.length);
381 map[sval] = _this.md5(ffn + '-' + sval);
385 var transfile = minfile + '.lang.trans';
386 var transmd5 = minfile + '.lang';
387 print("writeTranslateFile " + transfile);
390 if (File.exists(transfile)) {
391 File.remove(transfile);
393 if (File.exists(transmd5)) {
394 File.remove(transmd5);
396 for(v in map) { i++; break };
398 return; // no strings in file...
400 var ffn = fn.substring(this.prefix.length);
403 File.write(transfile, "\n'" + ffn + "' : {");
407 File.write(transmd5, '');
409 File.append(transfile, l + "\n\t \"" + v + '" : "' + v + '"');
411 // strings are raw... - as the where encoded to start with!!!
412 File.append(transmd5, '_T["' + this.md5(ffn + '-' + v) + '"]="'+v+"\";\n");
414 File.append(transfile, "\n},"); // always one trailing..
418 md5 : function (string)
421 return GLib.compute_checksum_for_string(GLib.ChecksumType.MD5, string, string.length);
424 stringHandler : function(tok)
426 //print("STRING HANDLER");
427 // callback when outputing compressed file,
429 if (!this.translateJSON) {
430 // print("TURNED OFF");
433 if (tok.name == 'SINGLE_QUOTE') {
437 var sval = data.substring(1,data.length-1);
438 // we do not clean up... quoting here!??!!?!?!?!?
441 // blank with tabs or spaces..
442 //if (!sval.replace(new RegExp("(\\\\n|\\\\t| )+",'g'), '').length) {
443 // return tok.outData;
446 var sval = tok.data.substring(1,data.length-1);
447 var fn = this.activeFile.substring(this.prefix.length);
450 return '_T["' + this.md5(fn + '-' + sval) + '"]';