/**
* @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 errordomain PackerError {
ArgumentError
}
public class Packer : Object
{
/**
* @cfg {String} target to write files to - must be full path.
*/
string target;
GLib.FileOutputStream targetStream = null;
/**
* @cfg {String} debugTarget target to write files debug version to (uncompacted)- must be full path.
*/
string targetDebug;
GLib.FileOutputStream targetDebugStream = null;
/**
* @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 activeFile = "";
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?
}
}
public void pack()
{
if (this.files.size < 1) {
throw new PackerError.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("".data);
}
if (this.targetDebugStream != null) {
this.targetDebugStream.write("".data);
}
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.targetDebugStream !=null) {
FileUtils.get_contents(file,out file_contents);
this.targetDebugStream.write(file_contents.data);
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.size; i++) {
var file = this.files[i];
var minfile = this.tmpDir + "/" + file.replace("/", ".");
if ( FileUtils.test(minfile, FileTest.EXISTS)) {
continue;
}
string str;
FileUtils.get_contents(minfile, out str);
print("using MIN FILE %s\n", minfile);
if (str.length > 0) {
if (this.targetStream != null) {
this.targetStream.write(("//" + file + "\n").data);
this.targetStream.write((str + "\n").data);
} else {
this.out += "//" + file + "\n";
this.out += str + "\n";
}
}
if (this.cleanup) {
FileUtils.remove(minfile);
}
}
print("Output file: " + this.target);
if (this.targetDebug.length > 0) {
print("Output debug file: " + this.targetDebug);
}
}
/**
* Core packing routine for a file
*
* @param str - str source text..
* @param fn - filename (for reference?)
* @param minfile - min file location...
*
*/
private string packFile (string str,string fn, string minfile)
{
var tr = new TokenReader();
tr.keepDocs =true;
tr.keepWhite = true;
tr.keepComments = true;
tr.sepIdents = true;
tr.collapseWhite = false;
tr.filename = fn;
// we can load translation map here...
TokenArray toks = tr.tokenize(new TextStream(str)); // dont merge xxx + . + yyyy etc.
this.activeFile = fn;
// and replace if we are generating a different language..
//var ts = new TokenStream(toks);
//print(JSON.stringify(toks, null,4 )); Seed.quit();
var ts = new Collapse(toks.tokens);
// print(JSON.stringify(ts.tokens, null,4 )); Seed.quit();
//return;//
var sp = new ScopeParser(ts);
//sp.packer = this;
sp.buildSymbolTree();
sp.mungeSymboltree();
sp.printWarnings();
//print(sp.warnings.join("\n"));
var outf = CompressWhite(new TokenStream(toks), this, this.keepWhite); // do not kill whitespace..
if (outf.length > 0) {
FileUtils.set_contents(minfile, outf);
}
return out;
}
public string md5(string str)
{
return GLib.Checksum.compute_for_string(GLib.ChecksumType.MD5, str);
}
//stringHandler : function(tok) -- not used...
}
}