!7

sS defaultJavaTarget = "1.8";

sS standardCredentials() { ret ""; } // public snippets only

// (transpilation md5, snippetID) => jar file
//static new SerializeComputations<PairS, File> computations;
// transpilation md5 => jar file
static new SerializeComputations<S, File> computations;

html {
  // lock lock; // now using SerializeComputations
  
  uri = dropPrefixSlash(uri);
  S snippetID = fsI(uri);
  if (!isSnippetPublic(snippetID)) fail("Snippet not public: " + snippetID);
  S transpiledSrc = getServerTranspiled2(snippetID);
  
  // md5 check (if parameter supplied)
  
  S md5 = params.get('md5);
  S srcMD5 = md5(transpiledSrc);
  if (md5 != null && !eq(md5, srcMD5)) ret "md5 mismatch";
  
  File jar = computations.get(srcMD5/*, snippetID)*/, -> {
    remutable transpiledSrc;
    int i = transpiledSrc.indexOf('\n');
    S libs = transpiledSrc.substring(0, Math.max(0, i));
    printVars(+snippetID, +libs);
    transpiledSrc = transpiledSrc.substring(i+1);
    S javaTarget = or(params.get('javaTarget), defaultJavaTarget);    
    CompilerBot.verbose = true;
    ret CompilerBot.compile(transpiledSrc, libs, javaTarget, snippetID);
  });
  
  bool withLibs = eq("1", params.get("withLibs"));
  if (withLibs) {
    Pair<S, LS> srcAndLibs = extractLibsFromTranspilation(transpiledSrc);
    if (nempty(srcAndLibs.b)) {
      File jar2 = appendToBaseFileName(jar, ".with-libs"); 
      if (fileLength(jar2) <= 22) {
        mergeJars_manifestFromFirst(flattenLists(
          jar,
          map loadLibraryOrSrcLib(srcAndLibs.b)
        ), jar2);
      }
      jar = jar2;
    }
  }
  
  bool noCompiler = eq("1", params.get("noCompiler"));
  if (noCompiler) {
    File jar2 = appendToBaseFileName(jar, ".no-compiler"); 
    if (fileLength(jar2) <= 22) {
      temp var jarOut = zipOutputStream(jar2);
      zip2zip(jar, jarOut);
      zip2zip(pathToJavaxJar(), jarOut, name -> !
        startsWithOneOf(name, "org/eclipse/", "META-INF/"));
    }
    printFileInfo(jar = jar2);
  }
  
  bool withX30 = eq("1", params.get("withX30"));
  if (withX30) {
    File jar2 = appendToBaseFileName(jar, ".with-x30"); 
    if (fileLength(jar2) <= 22) {
      mergeJars_manifestFromFirst(jar, pathToJavaxJar(), jar2);
    }
    jar = jar2;
  }
  
  bool noSrc = eq("1", params.get("noSrc"));
  
  bool dynamicObjectOnly = eq("dynamicObjectOnly", params.get("mode"));
  if (dynamicObjectOnly) {
    File jar2 = appendToBaseFileName(jar, ".dynamicObjectOnly" + stringIf(noSrc, ".noSrc")); 
    if (fileLength(jar2) <= 22) {
      temp var jarOut = zipOutputStream(jar2);
      bool withSrc = !noSrc;
      zip2zip(jar, jarOut, name -> withSrc || !endsWith(name, ".java"));
      zip2zip(pathToJavaxJar(), jarOut, name -> contains(name, "DynamicObject"));
    }
    jar = jar2;
  }
  
  print("Serving jar for " + snippetID + ": " + renderFileInfo(jar));
  ret subBot_serveFileWithName(jar, psI(snippetID) + ".jar", "application/java-archive");
}

Began life as a copy of #1020140