mirror of
https://github.com/ether/etherpad-lite.git
synced 2025-04-20 15:36:16 -04:00
created a folder structure in node
This commit is contained in:
Peter 'Pita' Martischka
parent
115f7d6b51
commit
8736b945c3
16 changed files with 0 additions and 0 deletions
298
node/utils/Minify.js
Normal file
298
node/utils/Minify.js
Normal file
|
|
@ -0,0 +1,298 @@
|
|||
/**
|
||||
* This Module manages all /minified/* requests. It controls the
|
||||
* minification && compression of Javascript and CSS.
|
||||
*/
|
||||
|
||||
/*
|
||||
* 2011 Peter 'Pita' Martischka
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS-IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
var settings = require('./settings');
|
||||
var async = require('async');
|
||||
var fs = require('fs');
|
||||
var cleanCSS = require('clean-css');
|
||||
var jsp = require("uglify-js").parser;
|
||||
var pro = require("uglify-js").uglify;
|
||||
var path = require('path');
|
||||
var Buffer = require('buffer').Buffer;
|
||||
var gzip = require('gzip');
|
||||
var server = require('./server');
|
||||
|
||||
var padJS = ["jquery.min.js", "pad_utils.js", "plugins.js", "undo-xpopup.js", "json2.js", "pad_cookie.js", "pad_editor.js", "pad_editbar.js", "pad_docbar.js", "pad_modals.js", "ace.js", "collab_client.js", "pad_userlist.js", "pad_impexp.js", "pad_savedrevs.js", "pad_connectionstatus.js", "pad2.js", "jquery-ui.js", "chat.js"];
|
||||
|
||||
var timesliderJS = ["jquery.min.js", "plugins.js", "undo-xpopup.js", "json2.js", "colorutils.js", "draggable.js", "pad_utils.js", "pad_cookie.js", "pad_editor.js", "pad_editbar.js", "pad_docbar.js", "pad_modals.js", "easysync2_client.js", "domline_client.js", "linestylefilter_client.js", "cssmanager_client.js", "broadcast.js", "broadcast_slider.js", "broadcast_revisions.js"];
|
||||
|
||||
/**
|
||||
* creates the minifed javascript for the given minified name
|
||||
* @param req the Express request
|
||||
* @param res the Express response
|
||||
*/
|
||||
exports.minifyJS = function(req, res, jsFilename)
|
||||
{
|
||||
res.header("Content-Type","text/javascript");
|
||||
|
||||
//choose the js files we need
|
||||
if(jsFilename == "pad.js")
|
||||
{
|
||||
jsFiles = padJS;
|
||||
}
|
||||
else if(jsFilename == "timeslider.js")
|
||||
{
|
||||
jsFiles = timesliderJS;
|
||||
}
|
||||
else
|
||||
{
|
||||
throw new Error("there is no profile for creating " + name);
|
||||
}
|
||||
|
||||
//minifying is enabled
|
||||
if(settings.minify)
|
||||
{
|
||||
var fileValues = {};
|
||||
var embeds = {};
|
||||
var latestModification = 0;
|
||||
|
||||
async.series([
|
||||
//find out the highest modification date
|
||||
function(callback)
|
||||
{
|
||||
var folders2check = ["../static/css","../static/js"];
|
||||
|
||||
//go trough this two folders
|
||||
async.forEach(folders2check, function(path, callback)
|
||||
{
|
||||
//read the files in the folder
|
||||
fs.readdir(path, function(err, files)
|
||||
{
|
||||
if(err) { callback(err); return; }
|
||||
|
||||
//we wanna check the directory itself for changes too
|
||||
files.push(".");
|
||||
|
||||
//go trough all files in this folder
|
||||
async.forEach(files, function(filename, callback)
|
||||
{
|
||||
//get the stat data of this file
|
||||
fs.stat(path + "/" + filename, function(err, stats)
|
||||
{
|
||||
if(err) { callback(err); return; }
|
||||
|
||||
//get the modification time
|
||||
var modificationTime = stats.mtime.getTime();
|
||||
|
||||
//compare the modification time to the highest found
|
||||
if(modificationTime > latestModification)
|
||||
{
|
||||
latestModification = modificationTime;
|
||||
}
|
||||
|
||||
callback();
|
||||
});
|
||||
}, callback);
|
||||
});
|
||||
}, callback);
|
||||
},
|
||||
function(callback)
|
||||
{
|
||||
//check the modification time of the minified js
|
||||
fs.stat("../var/minified_" + jsFilename, function(err, stats)
|
||||
{
|
||||
if(err && err.code != "ENOENT") callback(err);
|
||||
|
||||
//there is no minfied file or there new changes since this file was generated, so continue generating this file
|
||||
if((err && err.code == "ENOENT") || stats.mtime.getTime() < latestModification)
|
||||
{
|
||||
callback();
|
||||
}
|
||||
//the minified file is still up to date, stop minifying
|
||||
else
|
||||
{
|
||||
callback("stop");
|
||||
}
|
||||
});
|
||||
},
|
||||
//load all js files
|
||||
function (callback)
|
||||
{
|
||||
async.forEach(jsFiles, function (item, callback)
|
||||
{
|
||||
fs.readFile("../static/js/" + item, "utf-8", function(err, data)
|
||||
{
|
||||
fileValues[item] = data;
|
||||
callback(err);
|
||||
});
|
||||
}, callback);
|
||||
},
|
||||
//find all includes in ace.js and embed them
|
||||
function(callback)
|
||||
{
|
||||
//if this is not the creation of pad.js, skip this part
|
||||
if(jsFilename != "pad.js")
|
||||
{
|
||||
callback();
|
||||
return;
|
||||
}
|
||||
|
||||
var founds = fileValues["ace.js"].match(/\$\$INCLUDE_[a-zA-Z_]+\([a-zA-Z0-9.\/_"]+\)/gi);
|
||||
|
||||
//go trough all includes
|
||||
async.forEach(founds, function (item, callback)
|
||||
{
|
||||
var filename = item.match(/"[^"]*"/g)[0].substr(1);
|
||||
filename = filename.substr(0,filename.length-1);
|
||||
|
||||
var type = item.match(/INCLUDE_[A-Z]+/g)[0].substr("INCLUDE_".length);
|
||||
|
||||
var quote = item.search("_Q") != -1;
|
||||
|
||||
//read the included file
|
||||
fs.readFile(filename, "utf-8", function(err, data)
|
||||
{
|
||||
//compress the file
|
||||
if(type == "JS")
|
||||
{
|
||||
embeds[item] = "<script>\n" + compressJS([data])+ "\n\\x3c/script>";
|
||||
}
|
||||
else
|
||||
{
|
||||
embeds[item] = "<style>" + compressCSS([data])+ "</style>";
|
||||
}
|
||||
|
||||
//do the first escape
|
||||
embeds[item] = JSON.stringify(embeds[item]).replace(/'/g, "\\'").replace(/\\"/g, "\"");
|
||||
embeds[item] = embeds[item].substr(1);
|
||||
embeds[item] = embeds[item].substr(0, embeds[item].length-1);
|
||||
|
||||
//add quotes, if wished
|
||||
if(quote)
|
||||
{
|
||||
embeds[item] = "'" + embeds[item] + "'";
|
||||
}
|
||||
|
||||
//do the second escape
|
||||
embeds[item] = JSON.stringify(embeds[item]).replace(/'/g, "\\'").replace(/\"/g, "\"");
|
||||
embeds[item] = embeds[item].substr(1);
|
||||
embeds[item] = embeds[item].substr(0, embeds[item].length-1);
|
||||
embeds[item] = "'" + embeds[item] + "'";
|
||||
|
||||
callback(err);
|
||||
});
|
||||
}, function(err)
|
||||
{
|
||||
//replace the include command with the include
|
||||
for(var i in embeds)
|
||||
{
|
||||
fileValues["ace.js"]=fileValues["ace.js"].replace(i, embeds[i]);
|
||||
}
|
||||
|
||||
callback(err);
|
||||
});
|
||||
},
|
||||
//put all together and write it into a file
|
||||
function(callback)
|
||||
{
|
||||
//put all javascript files in an array
|
||||
var values = [];
|
||||
for(var i in jsFiles)
|
||||
{
|
||||
values.push(fileValues[jsFiles[i]]);
|
||||
}
|
||||
|
||||
//minify all javascript files to one
|
||||
var result = compressJS(values);
|
||||
|
||||
async.parallel([
|
||||
//write the results plain in a file
|
||||
function(callback)
|
||||
{
|
||||
fs.writeFile("../var/minified_" + jsFilename, result, "utf8", callback);
|
||||
},
|
||||
//write the results compressed in a file
|
||||
function(callback)
|
||||
{
|
||||
gzip(result, 9, function(err, compressedResult){
|
||||
if(err) {callback(err); return}
|
||||
|
||||
fs.writeFile("../var/minified_" + jsFilename + ".gz", compressedResult, callback);
|
||||
});
|
||||
}
|
||||
],callback);
|
||||
}
|
||||
], function(err)
|
||||
{
|
||||
if(err && err != "stop") throw err;
|
||||
|
||||
//check if gzip is supported by this browser
|
||||
var gzipSupport = req.header('Accept-Encoding', '').indexOf('gzip') != -1;
|
||||
|
||||
var pathStr;
|
||||
if(gzipSupport)
|
||||
{
|
||||
pathStr = path.normalize(__dirname + "/../var/minified_" + jsFilename + ".gz");
|
||||
res.header('Content-Encoding', 'gzip');
|
||||
}
|
||||
else
|
||||
{
|
||||
pathStr = path.normalize(__dirname + "/../var/minified_" + jsFilename );
|
||||
}
|
||||
|
||||
res.sendfile(pathStr, { maxAge: server.maxAge });
|
||||
})
|
||||
}
|
||||
//minifying is disabled, so put the files together in one file
|
||||
else
|
||||
{
|
||||
var fileValues = {};
|
||||
|
||||
//read all js files
|
||||
async.forEach(jsFiles, function (item, callback)
|
||||
{
|
||||
fs.readFile("../static/js/" + item, "utf-8", function(err, data)
|
||||
{
|
||||
fileValues[item] = data;
|
||||
callback(err);
|
||||
});
|
||||
},
|
||||
//send all files together
|
||||
function(err)
|
||||
{
|
||||
if(err) throw err;
|
||||
|
||||
for(var i=0;i<jsFiles.length;i++)
|
||||
{
|
||||
var fileName = jsFiles[i];
|
||||
res.write("\n\n\n/*** File: static/js/" + fileName + " ***/\n\n\n");
|
||||
res.write(fileValues[fileName]);
|
||||
}
|
||||
|
||||
res.end();
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
function compressJS(values)
|
||||
{
|
||||
var complete = values.join("\n");
|
||||
var ast = jsp.parse(complete); // parse code and get the initial AST
|
||||
ast = pro.ast_mangle(ast); // get a new AST with mangled names
|
||||
ast = pro.ast_squeeze(ast); // get an AST with compression optimizations
|
||||
return pro.gen_code(ast); // compressed code here
|
||||
}
|
||||
|
||||
function compressCSS(values)
|
||||
{
|
||||
var complete = values.join("\n");
|
||||
return cleanCSS.process(complete);
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue