#!/bin/sh
exec scala -classpath lib/yuicompressor-2.4-appjet.jar:lib/rhino-js-1.7r1.jar $0 $@
!#
import java.io._;
def superpack(input: String): String = {
// this function is self-contained; takes a string, returns an expression
// that evaluates to that string
// XXX (This compresses well but decompression is too slow)
// constraints on special chars:
// - this string must be able to go in a character class
// - each char must be able to go in single quotes
val specialChars = "-~@%$#*^_`()|abcdefghijklmnopqrstuvwxyz=!+,.;:?{}";
val specialCharsSet:Set[Char] = Set(specialChars:_*);
def containsSpecialChar(str: String) = str.exists(specialCharsSet.contains(_));
val toks:Array[String] = (
"@|[a-zA-Z0-9]+|[^@a-zA-Z0-9]{1,3}").r.findAllIn(input).collect.toArray;
val stringCounts = {
val m = new scala.collection.mutable.HashMap[String,Int];
def incrementCount(s: String) = { m(s) = m.getOrElse(s, 0) + 1; }
for(s <- toks) incrementCount(s);
m;
}
val estimatedSavings = scala.util.Sorting.stableSort(
for((s,n) <- stringCounts.toArray; savings = s.length*n
if (savings > 8 || containsSpecialChar(s)))
yield (s,n,savings),
(x:(String,Int,Int))=> -x._3);
def strLast(str: String, n: Int) = str.substring(str.length - n, str.length);
// order of encodeNames is very important!
val encodeNames = for(n <- 0 until (36*36); c <- specialChars) yield c.toString+strLast("0"+Integer.toString(n, 36).toUpperCase, 2);
val thingsToReplace:Seq[String] = estimatedSavings.map(_._1);
assert(encodeNames.length >= thingsToReplace.length);
val replacements = Map(thingsToReplace.elements.zipWithIndex.map({
case (str, i) => (str, encodeNames(i));
}).collect:_*);
def encode(tk: String) = if (replacements.contains(tk)) replacements(tk) else tk;
val afterReplace = toks.map(encode(_)).mkString.replaceAll(
"(["+specialChars+"])(?=..[^0-9A-Z])(00|0)", "$1");
def makeSingleQuotedContents(str: String): String = {
str.replace("\\", "\\\\").replace("'", "\\'").replace("<", "\\x3c").replace("\n", "\\n").
replace("\r", "\\n").replace("\t", "\\t");
}
val expansionMap = new scala.collection.mutable.HashMap[Char,scala.collection.mutable.ArrayBuffer[String]];
for(i <- 0 until thingsToReplace.length; sc = encodeNames(i).charAt(0);
e = thingsToReplace(i)) {
expansionMap.getOrElseUpdate(sc, new scala.collection.mutable.ArrayBuffer[String]) +=
(if (e == "@") "" else e);
}
val expansionMapLiteral = "{"+(for((sc,strs) <- expansionMap) yield {
"'"+sc+"':'"+makeSingleQuotedContents(strs.mkString("@"))+"'";
}).mkString(",")+"}";
val expr = ("(function(m){m="+expansionMapLiteral+
";for(var k in m){if(m.hasOwnProperty(k))m[k]=m[k].split('@')};return '"+
makeSingleQuotedContents(afterReplace)+
"'.replace(/(["+specialChars+
"])([0-9A-Z]{0,2})/g,function(a,b,c){return m[b][parseInt(c||'0',36)]||'@'})}())");
/*val expr = ("(function(m){m="+expansionMapLiteral+
";for(var k in m){if(m.hasOwnProperty(k))m[k]=m[k].split('@')};"+
"var result=[];var i=0;var s='"+makeSingleQuotedContents(afterReplace)+
"';var len=s.length;while (i<len) {var x=s.charAt(i); var L=m[x],a = s.charAt(i+1),b = s.charAt(i+2);if (L) { var c;if (!(a >= 'A' && a <= 'Z' || a >= '0' && a <= '9')) {c=L[0];i++} else if (!(b >= 'A' && b <= 'Z' || b >= '0' && b <= '9')) {c = L[parseInt(a,36)]; i+=2} else {c = L[parseInt(a+b,36)]; i+=3}; result.push(c||'@'); } else {result.push(x); i++} }; return result.join(''); }())");*/
def evaluateString(js: String): String = {
import org.mozilla.javascript._;
ContextFactory.getGlobal.call(new ContextAction {
def run(cx: Context) = {
val scope = cx.initStandardObjects;
cx.evaluateString(scope, js, "<cmd>", 1, null) } }).asInstanceOf[String];
}
def putFile(str: String, path: String): Unit = {
import java.io._;
val writer = new FileWriter(path);
writer.write(str);
writer.close;
}
val exprOut = evaluateString(expr);
if (exprOut != input) {
putFile(input, "/tmp/superpack.input");
putFile(expr, "/tmp/superpack.expr");
putFile(exprOut, "/tmp/superpack.output");
error("Superpacked string does not evaluate to original string; check /tmp/superpack.*");
}
val singleLiteral = "'"+makeSingleQuotedContents(input)+"'";
if (singleLiteral.length < expr.length) {
singleLiteral;
}
else {
expr;
}
}
def doMake {
lazy val isEtherPad = (args.length >= 2 && args(1) == "etherpad");
lazy val isNoHelma = (args.length >= 2 && args(1) == "nohelma");
def getFile(path:String): String = {
val builder = new StringBuilder(1000);
val reader = new BufferedReader(new FileReader(path));
val buf = new Array[Char](1024);
var numRead = 0;
while({ numRead = reader.read(buf); numRead } != -1) {
builder.append(buf, 0, numRead);
}
reader.close;
return builder.toString;
}
def putFile(str: String, path: String): Unit = {
val writer = new FileWriter(path);
writer.write(str);
writer.close;
}
def writeToString(func:(Writer=>Unit)): String = {
val writer = new StringWriter;
func(writer);
return writer.toString;
}
def compressJS(code: String, wrap: Boolean): String = {
import yuicompressor.org.mozilla.javascript.{ErrorReporter, EvaluatorException};
object MyErrorReporter extends ErrorReporter {
def warning(message:String, sourceName:String, line:Int, lineSource:String, lineOffset:Int) {
if (message startsWith "Try to use a single 'var' statement per scope.") return;
if (line < 0) System.err.println("\n[WARNING] " + message);
else System.err.println("\n[WARNING] " + line + ':' + lineOffset + ':' + message);
}
def error(message:String, sourceName:String, line:Int, lineSource:String, lineOffset:Int) {
if (line < 0) System.err.println("\n[ERROR] " + message);
else System.err.println("\n[ERROR] " + line + ':' + lineOffset + ':' + message);
}
def runtimeError(message:String, sourceName:String, line:Int, lineSource:String, lineOffset:Int): EvaluatorException = {
error(message, sourceName, line, lineSource, lineOffset);
return new EvaluatorException(message);
}
}
val munge = true;
val verbose = false;
val optimize = true;
val compressor = new com.yahoo.platform.yui.compressor.JavaScriptCompressor(new StringReader(code), MyErrorReporter);
return writeToString(compressor.compress(_, if (wrap) 100 else -1, munge, verbose, true, !optimize));
}
def compressCSS(code: String, wrap: Boolean): String = {
val compressor = new com.yahoo.platform.yui.compressor.CssCompressor(new StringReader(code));
return writeToString(compressor.compress(_, if (wrap) 100 else -1));
}
import java.util.regex.{Pattern, Matcher, MatchResult};
def stringReplace(orig: String, regex: String, groupReferences:Boolean, func:(MatchResult=>String)): String = {
val buf = new StringBuffer;
val m = Pattern.compile(regex).matcher(orig);
while (m.find) {
var str = func(m);
if (! groupReferences) {
str = str.replace("\\", "\\\\").replace("$", "\\$");
}
m.appendReplacement(buf, str);
}
m.appendTail(buf);
return buf.toString;
}
def stringToExpression(str: String): String = {
var contents = str.replace("\\", "\\\\").replace("'", "\\'").replace("<", "\\x3c").replace("\n", "\\n").
replace("\r", "\\n").replace("\t", "\\t");
contents = contents.replace("\\/", "\\\\x2f"); // for Norton Internet Security
val result = "'"+contents+"'";
result;
}
val srcDir = "www";
val destDir = "build";
var code = getFile(srcDir+"/ace2_outer.js");
val useCompression = true; //if (isEtherPad) false else true;
code = stringReplace(code, "\\$\\$INCLUDE_([A-Z_]+)\\([\"']([^\"']+)[\"']\\)", false, (m:MatchResult) => {
val includeType = m.group(1);
val paths = m.group(2);
val pathsArray = paths.replaceAll("""/\*.*?\*/""", "").split(" +").filter(_.length > 0);
def getSubcode = pathsArray.map(p => getFile(srcDir+"/"+p)).mkString("\n");
val doPack = (stringToExpression _);
includeType match {
case "JS" => {
var subcode = getSubcode;
subcode = subcode.replaceAll("var DEBUG=true;//\\$\\$[^\n\r]*", "var DEBUG=false;");
if (useCompression) subcode = compressJS(subcode, true);
"('\\x3cscript type=\"text/javascript\">//<!--\\n'+" + doPack(subcode) +
"+'//-->\\n</script>')";
}
case "CSS" => {
var subcode = getSubcode;
if (useCompression) subcode = compressCSS(subcode, false);
"('<style type=\"text/css\">'+" + doPack(subcode) + "+'</style>')";
}
case "JS_Q" => {
var subcode = getSubcode
subcode = subcode.replaceAll("var DEBUG=true;//\\$\\$[^\n\r]*", "var DEBUG=false;");
if (useCompression) subcode = compressJS(subcode, true);
"('(\\'\\\\x3cscript type=\"text/javascript\">//<!--\\\\n\\'+'+" +
doPack(stringToExpression(subcode)) +
"+'+\\'//-->\\\\n\\\\x3c/script>\\')')";
}
case "CSS_Q" => {
var subcode = getSubcode;
if (useCompression) subcode = compressCSS(subcode, false);
"('(\\'<style type=\"text/css\">\\'+'+" + doPack(stringToExpression(subcode)) +
"+'+\\'\\\\x3c/style>\\')')";
}
case ("JS_DEV" | "CSS_DEV") => "''";
case ("JS_Q_DEV" | "CSS_Q_DEV") => "'\\'\\''";
//case _ => "$$INCLUDE_"+includeType+"(\"../www/"+path+"\")";
}
});
if (useCompression) code = compressJS(code, true);
putFile(code, destDir+"/ace2bare.js");
//var wrapper = getFile(srcDir+"/ace2_wrapper.js");
//if (useCompression) wrapper = compressJS(wrapper, true);
putFile(/*wrapper+"\n"+*/code, destDir+"/ace2.js");
var index = getFile(srcDir+"/index.html");
index = index.replaceAll("<!--\\s*DEBUG\\s*-->\\s*([\\s\\S]+?)\\s*<!--\\s*/DEBUG\\s*-->", "");
index = index.replaceAll("<!--\\s*PROD:\\s*([\\s\\S]+?)\\s*-->", "$1");
putFile(index, destDir+"/index.html");
putFile(getFile(srcDir+"/testcode.js"), destDir+"/testcode.js");
def copyFile(fromFile: String, toFile: String) {
if (0 != Runtime.getRuntime.exec("cp "+fromFile+" "+toFile).waitFor) {
printf("copy failed (%s -> %s).\n", fromFile, toFile);
}
}
def replaceFirstLine(txt: String, newFirstLine: String): String = {
var newlinePos = txt.indexOf('\n');
newFirstLine + txt.substring(newlinePos);
}
if (isEtherPad) {
copyFile("build/ace2.js", "../../etherpad/src/static/js/ace.js");
def copyFileToEtherpad(fromName: String, toName: String) {
var code = getFile(srcDir+"/"+fromName);
code = "// DO NOT EDIT THIS FILE, edit "+
"infrastructure/ace/www/"+fromName+"\n"+code;
code = code.replaceAll("""(?<=\n)\s*//\s*%APPJET%:\s*""", "");
putFile(code, "../../etherpad/src/etherpad/collab/ace/"+toName);
}
def copyFileToClientSide(fromName: String, toName: String) {
var code = getFile(srcDir+"/"+fromName);
code = "// DO NOT EDIT THIS FILE, edit "+
"infrastructure/ace/www/"+fromName+"\n"+code;
code = code.replaceAll("""(?<=\n)\s*//\s*%APPJET%:.*?\n""", "");
code = code.replaceAll("""(?<=\n)\s*//\s*%CLIENT FILE ENDS HERE%[\s\S]*""",
"");
putFile(code, "../../etherpad/src/static/js/"+toName);
}
copyFileToEtherpad("easy_sync.js", "easysync1.js");
copyFileToEtherpad("easysync2.js", "easysync2.js");
copyFileToEtherpad("contentcollector.js", "contentcollector.js");
copyFileToEtherpad("easysync2_tests.js", "easysync2_tests.js");
copyFileToClientSide("colorutils.js", "colorutils.js");
copyFileToClientSide("easysync2.js", "easysync2_client.js");
copyFileToEtherpad("linestylefilter.js", "linestylefilter.js");
copyFileToClientSide("linestylefilter.js", "linestylefilter_client.js");
copyFileToEtherpad("domline.js", "domline.js");
copyFileToClientSide("domline.js", "domline_client.js");
copyFileToClientSide("cssmanager.js", "cssmanager_client.js");
}
/*else if (! isNoHelma) {
copyFile("build/ace2.js", "../helma_apps/appjet/protectedStatic/js/ace.js");
}*/
}
def remakeLoop {
def getStamp: Long = {
return (new java.io.File("www").listFiles.
filter(! _.getName.endsWith("~")).
filter(! _.getName.endsWith("#")).
filter(! _.getName.startsWith(".")).map(_.lastModified).
reduceLeft(Math.max(_:Long,_:Long)));
}
var madeStamp:Long = 0;
var errorStamp:Long = 0;
while (true) {
Thread.sleep(500);
val s = getStamp;
if (s > madeStamp && s != errorStamp) {
Thread.sleep(1000);
if (getStamp == s) {
madeStamp = s;
print("Remaking... ");
try {
doMake;
println("OK");
}
catch { case e => {
println("ERROR");
errorStamp = s;
} }
}
}
}
}
if (args.length >= 1 && args(0) == "auto") {
remakeLoop;
}
else {
doMake;
}
