1 // <script type="text/javascript">
2 XObject = imports.XObject.XObject;
3 File = imports.File.File;
5 TextStream = imports.JSDOC.TextStream.TextStream ;
6 TokenReader = imports.TokenReader.TokenReader;
7 ScopeParser = imports.ScopeParser.ScopeParser;
8 TokenStream = imports.TokenStream.TokenStream;
9 CompressWhite = imports.CompressWhite.CompressWhite;
10 Collapse = imports.Collapse.Collapse;
12 GLib = imports.gi.GLib;
25 Packer = imports['JSDOC/Packer.js'].Packer;
28 files : [ "/location/of/file1.js", "/location/of/file2.js", ... ],
29 target : "/tmp/output.js",
30 debugTarget : "/tmp/output.debug.js", // merged file without compression.
31 debugTranslateTarget : "/tmp/output.translate.js", // merged with translation
33 translateJSON: "/tmp/translate.json",
38 "/location/of/temp_batch_dir",
39 "/location/of/output-compacted-file.js",
40 "/location/of/output-debug-merged-file.js"
45 * Notes for improving compacting:
46 * if you add a jsdoc comment
53 * directly before an eval statement, it will compress all the code around the eval,
54 * and not rename the variables 'avarname'
56 * Dont try running this on a merged uncompressed large file - it's used to be horrifically slow. not sure about now..
57 * Best to use lot's of small classes, and use it to merge, as it will cache the compaction
61 * Notes for translation
62 * - translation relies on you using double quotes for strings if they need translating
63 * - single quoted strings are ignored.
65 * Generation of indexFiles
66 * - translateIndex = the indexfile
73 Packer = function(cfg)
76 XObject.extend(this, cfg);
78 if (this.srcfiles && this.srcfiles.length) {
79 this.srcfiles.forEach(function(f) {
80 _this.loadSourceFile(f);
92 function dateString(d){
93 function pad(n){return n<10 ? '0'+n : n}
94 return d.getFullYear() +
105 this.files.forEach(function(f) {
106 version = Math.max(File.mtime(f), version);
108 var version = dateString(new Date(version));
110 var dirname = GLib.path_get_dirname(this.files[0]);
111 var outname = this.module ? this.module : GLib.path_get_basename(dirname);
112 this.target = dirname + '/compiled/' + outname + '-' + version + '.js';
113 if (File.exists(this.target)) {
114 print("Target file already exists: " + this.target);
117 this.prefix = dirname +'/';
118 this.translateJSON = dirname + '/compiled/_translation_.js';
122 print(this.translateJSON);
123 this.timer = new Date() * 1;
134 * @cfg {String} srcfiles file containing a list of files/or classes to use.
139 * @cfg {Array} files list of files to compress (must be full path)
143 * @cfg {String} target to write files to - must be full path.
147 * @cfg {Boolean} autoBuild - turn on autobuild feature (puts files in compiled directory,
148 * and enables translation toolkit.
152 * @cfg {String} module used with autoBuild to force a file name
156 * @cfg {String} debugTarget target to write files debug version to (uncompacted)- must be full path.
158 debugTarget : '', // merged file without compression.
160 * @cfg {String} debugTranslateTarget target to write files debug version
161 * to (uncompacted) but with translation- must be full path.
164 debugTranslateTarget : '',
167 * @cfg {String} tmpDir (optional) where to put the temporary files.
168 * if you set this, then files will not be cleaned up
172 * json based list of strings in all files.
178 * @cfg {Boolean} cleanup (optional) clean up temp files after done -
179 * Defaults to false if you set tmpDir, otherwise true.
183 * @cfg {Boolean} keepWhite (optional) do not remove white space in output.
184 * usefull for debugging compressed files.
190 * @cfg {String} prefix (optional) prefix of directory to be stripped of when
191 * Calculating md5 of filename
194 out : '', // if no target is specified - then this will contain the result
197 * load a dependancy list -f option
198 * @param {String} srcfile sourcefile to parse
202 loadSourceFile : function(srcfile)
204 var lines = File.read(srcfile).split("\n");
206 lines.forEach(function(f) {
208 if (/^\s*\//.test(f) || !/[a-z]+/i.test(f)) { // skip comments..
211 if (/\.js$/.test(f)) {
212 _this.files.push( f);
217 //println("ADD"+ f.replace(/\./g, '/'));
218 var add = f.replace(/\./g, '/').replace(/\s+/g,'')+'.js';
219 if (_this.files.indexOf(f) > -1) {
222 _this.files.push( add );
228 packAll : function() // do the packing (run from constructor)
231 //this.transOrigFile= bpath + '/../lang.en.js'; // needs better naming...
232 //File.write(this.transfile, "");
234 File.write(this.target, "");
237 if (this.debugTarget) {
238 File.write(this.debugTarget, "");
240 if (this.debugTranslateTarget) {
241 File.write(this.debugTarget, "");
244 for(var i=0; i < this.files.length; i++) {
245 var file = this.files[i];
247 print("reading " +file );
248 if (!File.isFile(file)) {
249 print("SKIP (is not a file) " + file);
255 if (this.debugTarget) {
256 File.append(this.debugTarget, File.read(file));
258 // it's a good idea to check with 0 compression to see if the code can parse!!
261 //File.append(dout, str +"\n");
265 var minfile = this.tmpDir + '/' +file.replace(/\//g, '.');
268 // let's see if we have a min file already?
269 // this might happen if tmpDir is set ..
270 if (true && File.exists(minfile)) {
271 var mt = File.mtime(minfile);
272 var ot = File.mtime(file);
273 print("compare : " + mt + "=>" + ot);
281 print("COMPRESSING ");
282 //var codeComp = pack(str, 10, 0, 0);
283 if (File.exists(minfile)) {
284 File.remove(minfile);
286 var str = File.read(file);
287 var str = this.pack(str, file, minfile);
294 // if we are translating, write the translations strings at the top
297 if (this.translateJSON) {
300 print("MERGING LANGUAGE");
301 var out = "if (typeof(_T) == 'undefined') { _T={};}\n"
303 File.write(this.target, out);
308 File.write(this.translateJSON, "");
309 for(var i=0; i < this.files.length; i++) {
310 var file = this.files[i];
311 var transfile= this.tmpDir + '/' +file.replace(/\//g, '.') +'.lang.trans';
312 var transmd5 = this.tmpDir + '/' +file.replace(/\//g, '.') +'.lang';
313 if (File.exists(transmd5)) {
314 var str = File.read(transmd5);
317 File.append(this.target, str + "\n");
319 this.out += str + "\n";
324 File.remove(transmd5);
327 if (File.exists(transfile)) {
328 var str = File.read(transfile);
330 File.append(this.translateJSON, str);
333 File.remove(transfile);
341 print("MERGING SOURCE");
343 for(var i=0; i < this.files.length; i++) {
344 var file = this.files[i];
345 var minfile = this.tmpDir + '/' + file.replace(/\//g, '.');
348 if (!File.exists(minfile)) {
351 var str = File.read(minfile);
352 print("using MIN FILE "+ minfile);
355 File.append(this.target, str + "\n");
357 this.out += str + "\n";
362 File.remove(minfile);
366 print("Output file: " + this.target);
367 if (this.debugTarget) print("Output debug file: " + this.debugTarget);
374 * Core packing routine for a file
376 * @param str - str source text..
377 * @param fn - filename (for reference?)
378 * @param minfile - min file location...
382 pack : function (str,fn,minfile)
385 var tr = new TokenReader( {
390 collapseWhite : false,
393 this.timerPrint("START" + fn);
395 // we can load translation map here...
397 var toks = tr.tokenize(new TextStream(str)); // dont merge xxx + . + yyyy etc.
399 // at this point we can write a language file...
400 if (this.translateJSON) {
402 this.writeTranslateFile(fn, minfile, toks);
405 this.activeFile = fn;
407 // and replace if we are generating a different language..
409 this.timerPrint("Tokenized");
410 //var ts = new TokenStream(toks);
411 //print(JSON.stringify(toks, null,4 )); Seed.quit();
412 var ts = new Collapse(toks);
413 // print(JSON.stringify(ts.tokens, null,4 )); Seed.quit();
415 var sp = new ScopeParser(ts);
416 this.timerPrint("Converted to Parser");
418 sp.buildSymbolTree();
419 this.timerPrint("Built Sym tree");
420 sp.mungeSymboltree();
421 this.timerPrint("Munged Sym tree");
422 print(sp.warnings.join("\n"));
423 this.timerPrint("Compressed");
425 var out = CompressWhite(new TokenStream(toks), this, this.keepWhite); // do not kill whitespace..
428 this.timerPrint("Compressed");
431 File.write(minfile, out);
440 timerPrint: function (str) {
441 var ntime = new Date() * 1;
442 var tdif = ntime -this.timer;
444 print('['+tdif+']'+str);
449 * Translation concept...
450 * -> replace text strings with _T....
451 * -> this file will need inserting at the start of the application....
452 * -> we need to generate 2 files,
453 * -> a reference used to do the translation, and the _T file..
456 * We store the trsum on the token...
460 writeTranslateFile : function(fn, minfile, toks)
463 var map = {}; // 'string=> md5sum'
468 var tokfind = function (j,dir) {
470 if ((dir < 0) && (j < 0)) {
473 if ((dir > 0) && (j >= toks.length)) {
477 if (toks[j].type != 'WHIT') {
486 for (var i=0;i<toks.length;i++) {
489 if (t.type != 'STRN') {
492 if (t.name != 'DOUBLE_QUOTE') {
496 last = tokfind(i,-1);
497 next = tokfind(i,+1);
499 // we have to ignore key values on objects
502 // last == '{' or ',' and
506 next.type == 'PUNC' &&
509 last.type == 'PUNC' &&
510 (last.data == ',' || last.data == '{')
512 continue; // found object key... - we can not translate these
515 var sval = t.data.substring(1,t.data.length-1);
516 var ffn = fn.substring(_this.prefix.length);
518 t.trsum = _this.md5(ffn + '-' + sval);
526 var transfile = minfile + '.lang.trans';
527 var transmd5 = minfile + '.lang';
528 print("writeTranslateFile " + transfile);
531 if (File.exists(transfile)) {
532 File.remove(transfile);
534 if (File.exists(transmd5)) {
535 File.remove(transmd5);
537 for(v in map) { i++; break };
539 return; // no strings in file...
541 var ffn = fn.substring(this.prefix.length);
544 File.write(transfile, "\n'" + ffn + "' : {");
548 File.write(transmd5, '');
553 File.append(transfile, l + "\n\t\"" + v + "\" : \"" + v +"\"");
555 // strings are raw... - as the where encoded to start with!!!
556 // so we should not need to encode them again.. - just wrap with "
557 File.append(transmd5, '_T["' + this.md5(ffn + '-' + v) + '"]="'+v+"\";\n");
559 File.append(transfile, "\n},"); // always one trailing..
563 md5 : function (string)
566 return GLib.compute_checksum_for_string(GLib.ChecksumType.MD5, string, string.length);
569 stringHandler : function(tok)
571 //print("STRING HANDLER");
572 // callback when outputing compressed file,
574 if (!this.translateJSON) {
575 // print("TURNED OFF");
578 if (tok.name == 'SINGLE_QUOTE') {
582 if (typeof(tok.trsum) == 'undefined') {
586 return '_T["' + tok.trsum + '"]';
588 var sval = data.substring(1,data.length-1);
589 // we do not clean up... quoting here!??!!?!?!?!?
592 // blank with tabs or spaces..
593 //if (!sval.replace(new RegExp("(\\\\n|\\\\t| )+",'g'), '').length) {
594 // return tok.outData;
597 var sval = tok.data.substring(1,data.length-1);
598 var fn = this.activeFile.substring(this.prefix.length);
601 return '_T["' + this.md5(fn + '-' + sval) + '"]';