/**
* @namespace JSDOC
* @class Packer
* Create a new packer
*
* Use with pack.js
*
*
* Usage:
*
*
var x = new JSON.Packer(target, debugTarget);
x.files = an array of files
x.srcfiles = array of files (that list other files...) << not supported?
x.target = "output.pathname.js"
x.debugTarget = "output.pathname.debug.js"
x.debugTranslateTarget : "/tmp/output.translate.js" << this used to be the single vs double quotes.. we may not use it in future..
x.translateJSON: "/tmp/translate.json",
x.packAll(); // writes files etc..
*
*
* Notes for improving compacting:
* if you add a jsdoc comment
*
* /**
* eval:var:avarname
* eval:var:bvarname
* ....
*
* directly before an eval statement, it will compress all the code around the eval,
* and not rename the variables 'avarname'
*
* Dont try running this on a merged uncompressed large file - it's used to be horrifically slow. not sure about now..
* Best to use lot's of small classes, and use it to merge, as it will cache the compaction
*
*
*
* Notes for translation
* - translation relies on you using double quotes for strings if they need translating
* - single quoted strings are ignored.
*
* Generation of indexFiles
* - translateIndex = the indexfile
*
*
*
*
*/
namespace JSDOC
{
public class Packer : Object
{
/**
* @cfg {String} target to write files to - must be full path.
*/
string target;
/**
* @cfg {String} debugTarget target to write files debug version to (uncompacted)- must be full path.
*/
string targetDebug;
/**
* @cfg {String} tmpDir (optional) where to put the temporary files.
* if you set this, then files will not be cleaned up
*/
public string tmpDir = "/tmp"; // FIXME??? in ctor?
/**
* @cfg {Boolean} cleanup (optional) clean up temp files after done -
* Defaults to false if you set tmpDir, otherwise true.
*/
public bool cleanup = true;
/**
* @cfg {Boolean} keepWhite (optional) do not remove white space in output.
* usefull for debugging compressed files.
*/
public bool keepWhite = true;
// list of files to compile...
Gee.ArrayList files;
public string out = ""; // if no target is specified - then this will contain the result
public Packer(string target, string targetDebug = "")
{
this.target = target;
this.targetDebug = targetDebug;
}
public void loadSourceIndexes(Gee.ArrayList indexes)
{
foreach(var f in indexes) {
this.loadSourceIndex(f);
}
}
public void loadFiles(Gee.ArrayList fs)
{
foreach(var f in fs) {
this.files.add(f); //?? easier way?
}
}
FileOutputStream targetStream = null;
FileOutputStream targetDebugStream = null;
public void pack()
{
if (!this.files) {
throw new Packer.ArgumentError("No Files loaded before pack() called");
}
if (this.target.length > 0 ) {
this.targetStream = File.new_for_path(this.target).replace(null, false,FileCreateFlags.NONE);
}
if (this.targetDebug.length > 0 ) {
this.targetDebugStream = File.new_for_path(this.targetDebug).replace(null, false,FileCreateFlags.NONE);
}
this.packAll();
}
/**
* load a dependancy list -f option
* @param {String} srcfile sourcefile to parse
*
*/
public void loadSourceIndex(string srcfile)
{
string str;
FileUtils.get_contents(srcfile,out str);
var lines = str.split("\n");
for(var i =0; i < lines.length;i++) {
var f = lines[i].strip();
if (f.length < 1 ||
Regex.match_simple ("^/", f) ||
!Regex.match_simple ("[a-zA-Z]+", f)
){
continue; // blank comment or not starting with a-z
}
if (Regex.match_simple ("\\.js$", f)) {
this.files.add( f);
// js file..
continue;
}
// this maps Roo.bootstrap.XXX to Roo/bootstrap/xxx.js
// should we prefix? =- or should this be done elsewhere?
var add = f.replace(".", "/") + ".js";
if (_this.files.contains(add)) {
continue;
}
_this.files.add( add );
}
}
private void packAll() // do the packing (run from constructor)
{
//this.transOrigFile= bpath + '/../lang.en.js'; // needs better naming...
//File.write(this.transfile, "");
if (this.target.length > 0) {
this.targetStream.write("");
}
if (this.debugTarget > 0) {
this.targetDebugStream.write("");
}
foreach(var file in this.files) {
print("reading %s\n",file );
if (FileUtils.test (file, FileTest.EXISTS) && ! FileUtils.test (file, FileTest.IS_DIR)) {
print("SKIP (is not a file) %s\n ", file);
continue;
}
var loaded_string = false;
string file_contents;
// debug Target
if (this.debugTargetStream !=null) {
FileUtils.get_contents(file,out file_contents);
this.debugTarget.write(file_contents);
loaded_string = false;
}
// it's a good idea to check with 0 compression to see if the code can parse!!
// debug file..
//File.append(dout, str +"\n");
var minfile = this.tmpDir + '/' + file.replace("/", '.');
// let's see if we have a min file already?
// this might happen if tmpDir is set ..
if (true && FileUtils.test (minfile, FileTest.EXISTS)) {
var otv = File.new_for_path(file).query_info (FileAttribute.TIME_MODIFIED, 0).get_modification_time();
var mtv = File.new_for_path(minfile).query_info (FileAttribute.TIME_MODIFIED, 0).get_modification_time();
var ot = new Date();
ot.set_time_val(otv);
var mt = new Date();
mt.set_time_val(mtv);
//print("compare : " + mt + "=>" + ot);
if (mt.compare(ot) >= 0) {
continue; // file is newer or the same time..
}
}
print("COMPRESSING ");
//var codeComp = pack(str, 10, 0, 0);
if (FileUtils.test (minfile, FileTest.EXISTS)) {
FileUtils.remove(minfile);
}
if (!loaded_string) {
FileUtils.get_contents(file,out file_contents);
}
var str = this.packFile(file_contents, file, minfile);
}
// if we are translating, write the translations strings at the top
// of the file..
if (this.translateJSON) {
print("MERGING LANGUAGE");
var out = "if (typeof(_T) == 'undefined') { _T={};}\n"
if (this.target) {
File.write(this.target, out);
} else {
this.out += out;
}
File.write(this.translateJSON, "");
for(var i=0; i < this.files.length; i++) {
var file = this.files[i];
var transfile= this.tmpDir + '/' +file.replace(/\//g, '.') +'.lang.trans';
var transmd5 = this.tmpDir + '/' +file.replace(/\//g, '.') +'.lang';
if (File.exists(transmd5)) {
var str = File.read(transmd5);
if (str.length) {
if (this.target) {
File.append(this.target, str + "\n");
} else {
this.out += str + "\n";
}
}
if (this.cleanup) {
File.remove(transmd5);
}
}
if (File.exists(transfile)) {
var str = File.read(transfile);
if (str.length) {
File.append(this.translateJSON, str);
}
if (this.cleanup) {
File.remove(transfile);
}
}
}
}
print("MERGING SOURCE");
for(var i=0; i < this.files.length; i++) {
var file = this.files[i];
var minfile = this.tmpDir + '/' + file.replace(/\//g, '.');
if (!File.exists(minfile)) {
continue;
}
var str = File.read(minfile);
print("using MIN FILE "+ minfile);
if (str.length) {
if (this.target) {
File.append(this.target, '//' + file + "\n");
File.append(this.target, str + "\n");
} else {
this.out += '//' + file + "\n";
this.out += str + "\n";
}
}
if (this.cleanup) {
File.remove(minfile);
}
}
print("Output file: " + this.target);
if (this.debugTarget) print("Output debug file: " + this.debugTarget);
},
/**
* Core packing routine for a file
*
* @param str - str source text..
* @param fn - filename (for reference?)
* @param minfile - min file location...
*
*/
packFile : function (str,fn,minfile)
{
var tr = new TokenReader( {
keepDocs :true,
keepWhite : true,
keepComments : true,
sepIdents : true,
collapseWhite : false,
filename : fn
});
this.timerPrint("START" + fn);
// we can load translation map here...
var toks = tr.tokenize(new TextStream(str)); // dont merge xxx + . + yyyy etc.
// at this point we can write a language file...
if (this.translateJSON) {
this.writeTranslateFile(fn, minfile, toks);
}
this.activeFile = fn;
// and replace if we are generating a different language..
this.timerPrint("Tokenized");
//var ts = new TokenStream(toks);
//print(JSON.stringify(toks, null,4 )); Seed.quit();
var ts = new Collapse(toks);
// print(JSON.stringify(ts.tokens, null,4 )); Seed.quit();
//return;//
var sp = new ScopeParser(ts);
this.timerPrint("Converted to Parser");
sp.packer = this;
sp.buildSymbolTree();
this.timerPrint("Built Sym tree");
sp.mungeSymboltree();
this.timerPrint("Munged Sym tree");
print(sp.warnings.join("\n"));
this.timerPrint("Compressed");
var out = CompressWhite(new TokenStream(toks), this, this.keepWhite); // do not kill whitespace..
this.timerPrint("Compressed");
if (out.length) {
File.write(minfile, out);
this.timerPrint("Write (" + out.length + "bytes) " + minfile);
}
return out;
},
timerPrint: function (str) {
var ntime = new Date() * 1;
var tdif = ntime -this.timer;
this.timer = ntime;
print('['+tdif+']'+str);
},
/**
*
* Translation concept...
* -> replace text strings with _T....
* -> this file will need inserting at the start of the application....
* -> we need to generate 2 files,
* -> a reference used to do the translation, and the _T file..
*
*
* We store the trsum on the token...
*
*/
writeTranslateFile : function(fn, minfile, toks)
{
var map = {}; // 'string=> md5sum'
var _this = this;
var t, last, next;
var tokfind = function (j,dir) {
while (1) {
if ((dir < 0) && (j < 0)) {
return false;
}
if ((dir > 0) && (j >= toks.length)) {
return false;
}
j += dir;
if (toks[j].type != 'WHIT') {
return toks[j];
}
}
return false;
}
for (var i=0;i