public Set<String> getFiles() {
        final Set<String> result = new HashSet<String>();

        for (FileWrapper f : mySources.keySet()) {
          result.add(f.getName());
        }

        return result;
      }
  private static List<String> generateClasspath(CompileContext context, ModuleChunk chunk) {
    final Set<String> cp = new LinkedHashSet<String>();
    // groovy_rt.jar
    // IMPORTANT! must be the first in classpath
    cp.add(ClasspathBootstrap.getResourcePath(GroovyCompilerWrapper.class).getPath());

    for (File file :
        context
            .getProjectPaths()
            .getClasspathFiles(chunk, ClasspathKind.compile(context.isCompilingTests()), false)) {
      cp.add(FileUtil.toCanonicalPath(file.getPath()));
    }
    for (File file :
        context
            .getProjectPaths()
            .getClasspathFiles(chunk, ClasspathKind.runtime(context.isCompilingTests()), false)) {
      cp.add(FileUtil.toCanonicalPath(file.getPath()));
    }
    return new ArrayList<String>(cp);
  }
      public Set<String> getRemovedFiles(final Properties past) {
        final Set<String> result = new HashSet<String>();

        if (past != null) {
          for (FileWrapper was : past.mySources.keySet()) {
            final FileWrapper now = mySources.get(was);

            if (now == null) {
              result.add(was.getName());
            }
          }
        }

        return result;
      }
      public Set<String> getOutdatedFiles(final Properties past) {
        final Set<String> result = new HashSet<String>();

        for (FileWrapper now : mySources.keySet()) {
          final FileWrapper than = past == null ? null : past.mySources.get(now);

          if (than == null
              || than.getStamp() < now.getStamp()
              || affectedFiles.contains(now.getName())) {
            result.add(now.getName());
          }
        }

        return result;
      }
    public ModuleWrapper(final Module m) {
      m.forceInit();
      myModule = m;
      myDependsOn = null;
      myTestDependsOn = null;
      myName = m.getName();
      myExcludes = new HashSet<String>(m.getExcludes());
      mySource = new Properties(m.getSourceRoots(), m.getOutputPath(), myExcludes);
      myTest = new Properties(m.getTestRoots(), m.getTestOutputPath(), myExcludes);

      myLibraries = new HashSet<LibraryWrapper>();

      for (Library lib : m.getLibraries().values()) {
        myLibraries.add(new LibraryWrapper(lib));
      }
    }
  public ModuleLevelBuilder.ExitCode build(final CompileContext context, ModuleChunk chunk)
      throws ProjectBuildException {
    try {
      final List<File> toCompile = collectChangedFiles(context, chunk);
      if (toCompile.isEmpty()) {
        return ExitCode.NOTHING_DONE;
      }

      String moduleOutput = getModuleOutput(context, chunk);
      String compilerOutput = getCompilerOutput(moduleOutput);

      final Set<String> toCompilePaths = new LinkedHashSet<String>();
      for (File file : toCompile) {
        toCompilePaths.add(FileUtil.toSystemIndependentName(file.getPath()));
      }

      Map<String, String> class2Src =
          buildClassToSourceMap(chunk, context, toCompilePaths, moduleOutput);

      String ideCharset = chunk.getProject().getProjectCharset();
      String encoding =
          !Comparing.equal(CharsetToolkit.getDefaultSystemCharset().name(), ideCharset)
              ? ideCharset
              : null;
      List<String> patchers = Collections.emptyList(); // todo patchers
      final File tempFile =
          GroovycOSProcessHandler.fillFileWithGroovycParameters(
              compilerOutput,
              toCompilePaths,
              FileUtil.toSystemDependentName(moduleOutput),
              class2Src,
              encoding,
              patchers);

      // todo different outputs in a chunk
      // todo xmx
      final List<String> cmd =
          ExternalProcessUtil.buildJavaCommandLine(
              getJavaExecutable(chunk),
              "org.jetbrains.groovy.compiler.rt.GroovycRunner",
              Collections.<String>emptyList(),
              new ArrayList<String>(generateClasspath(context, chunk)),
              Arrays.asList(
                  "-Xmx384m",
                  "-Dfile.encoding=" + CharsetToolkit.getDefaultSystemCharset().name() /*,
                      "-Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=5239"*/),
              Arrays.<String>asList(myForStubs ? "stubs" : "groovyc", tempFile.getPath()));

      final Process process = Runtime.getRuntime().exec(ArrayUtil.toStringArray(cmd));
      GroovycOSProcessHandler handler =
          GroovycOSProcessHandler.runGroovyc(
              process,
              new Consumer<String>() {
                public void consume(String s) {
                  context.processMessage(new ProgressMessage(s));
                }
              });

      if (handler.shouldRetry()) {
        if (CHUNK_REBUILD_ORDERED.get(context) != null) {
          CHUNK_REBUILD_ORDERED.set(context, null);
        } else {
          CHUNK_REBUILD_ORDERED.set(context, Boolean.TRUE);
          return ExitCode.CHUNK_REBUILD_REQUIRED;
        }
      }

      if (myForStubs) {
        JavaBuilder.addTempSourcePathRoot(context, new File(compilerOutput));
      }

      for (CompilerMessage message : handler.getCompilerMessages()) {
        context.processMessage(message);
      }
      if (!myForStubs
          && updateDependencies(
              context, chunk, toCompile, moduleOutput, handler.getSuccessfullyCompiled())) {
        return ExitCode.ADDITIONAL_PASS_REQUIRED;
      }
      return ExitCode.OK;
    } catch (Exception e) {
      throw new ProjectBuildException(e);
    }
  }
  public void makeModules(final Collection<Module> initial, final Flags flags) {
    if (myHistory == null && !flags.tests()) {
      clean();
    }

    new Logger(flags) {
      @Override
      public void log(final PrintStream stream) {
        stream.println("Request to make modules:");
        logMany(stream, initial);
        stream.println("End of request");
      }
    }.log();

    final ClasspathKind kind = ClasspathKind.compile(flags.tests());

    final Set<Module> modules = new HashSet<Module>();
    final Set<String> marked = new HashSet<String>();
    final Map<String, Boolean> visited = new HashMap<String, Boolean>();
    final Set<String> frontier = new HashSet<String>();

    final Map<String, Set<String>> reversedDependencies = new HashMap<String, Set<String>>();
    final DotPrinter printer = new DotPrinter(flags.logStream());

    printer.header();

    for (Module m : myProject.getModules().values()) {
      final String mName = m.getName();

      printer.node(mName);

      for (ClasspathItem cpi : m.getClasspath(kind)) {
        if (cpi instanceof Module) {
          final String name = ((Module) cpi).getName();

          printer.edge(name, mName);

          Set<String> sm = reversedDependencies.get(name);

          if (sm == null) {
            sm = new HashSet<String>();
            reversedDependencies.put(name, sm);
          }

          sm.add(mName);
        }
      }
    }

    printer.footer();

    // Building "upper" subgraph

    printer.header();

    new Object() {
      public void run(final Collection<Module> initial) {
        if (initial == null) return;

        for (Module module : initial) {

          final String mName = module.getName();

          if (marked.contains(mName)) continue;

          printer.node(mName);

          final List<Module> dep = new ArrayList<Module>();

          for (ClasspathItem cpi : module.getClasspath(kind)) {
            if (cpi instanceof Module && !marked.contains(((Module) cpi).getName())) {
              printer.edge(((Module) cpi).getName(), mName);
              dep.add((Module) cpi);
            }
          }

          if (dep.size() == 0) {
            frontier.add(mName);
          }

          marked.add(mName);

          run(dep);
        }
      }
    }.run(initial);

    printer.footer();

    // Traversing "upper" subgraph and collecting outdated modules and their descendants
    new Object() {
      public void run(final Collection<String> initial, final boolean force) {
        if (initial == null) return;

        for (String moduleName : initial) {
          if (!marked.contains(moduleName)) continue;

          final Boolean property = visited.get(moduleName);

          if (property == null || !property && force) {
            final boolean outdated = getModule(moduleName).isOutdated(flags.tests(), myHistory);

            if (force || outdated) {
              visited.put(moduleName, true);
              modules.add(myProject.getModules().get(moduleName));

              run(reversedDependencies.get(moduleName), true);
            } else {
              if (property == null) {
                visited.put(moduleName, false);
              }
              run(reversedDependencies.get(moduleName), false);
            }
          }
        }
      }
    }.run(frontier, flags.force());

    new Logger(flags) {
      @Override
      public void log(PrintStream stream) {
        stream.println("Propagated modules:");
        logMany(stream, modules);
        stream.println("End of propagated");
      }
    }.log();

    if (modules.size() == 0 && !flags.force()) {
      System.out.println("All requested modules are up-to-date.");
      return;
    }

    final BusyBeaver beaver = new BusyBeaver(myProjectBuilder);

    myProjectBuilder.buildStart();

    if (flags.tests()) {
      beaver.build(
          modules,
          new Flags() {
            public boolean tests() {
              return false;
            }

            public boolean incremental() {
              return flags.incremental();
            }

            public boolean force() {
              return flags.force();
            }

            public PrintStream logStream() {
              return flags.logStream();
            }
          });
    }

    beaver.build(modules, flags);

    myProjectBuilder.buildStop();

    for (Module mod : modules) {
      getModule(mod.getName()).updateOutputStatus();
    }
  }
    public BuildStatus build(final Collection<Module> modules, final Flags flags) {
      boolean incremental = flags.incremental();
      final List<ModuleChunk> chunks = myProjectBuilder.getChunks(flags.tests()).getChunkList();

      for (final ModuleChunk c : chunks) {
        final Set<Module> chunkModules = c.getElements();

        if (!DefaultGroovyMethods.intersect(modules, chunkModules).isEmpty()) {
          final Set<String> removedSources = new HashSet<String>();

          if (incremental) {
            final Set<String> chunkSources = new HashSet<String>();
            final Set<String> outdatedSources = new HashSet<String>();

            for (Module m : chunkModules) {
              final ModuleWrapper mw = getModule(m.getName());

              outdatedSources.addAll(mw.getOutdatedFiles(flags.tests()));
              chunkSources.addAll(mw.getSources(flags.tests()));
              removedSources.addAll(mw.getRemovedFiles(flags.tests()));
            }

            final BuildStatus result =
                iterativeCompile(c, chunkSources, outdatedSources, removedSources, flags);

            incremental = result == BuildStatus.INCREMENTAL;

            if (result == BuildStatus.FAILURE) {
              return result;
            }
          } else {
            new Logger(flags) {
              @Override
              public void log(PrintStream stream) {
                stream.println("Compiling chunk " + c.getName() + " non-incrementally.");
              }
            }.log();

            for (Module m : chunkModules) {
              final ModuleWrapper mw = getModule(m.getName());
              removedSources.addAll(flags.tests() ? mw.getRemovedTests() : mw.getRemovedSources());
            }

            final Set<Module> toClean = new HashSet<Module>();

            for (Module m : chunkModules) {
              if (!cleared.contains(m)) {
                toClean.add(m);
              }
            }

            if (!toClean.isEmpty() && !flags.tests()) {
              builder.clearChunk(new ModuleChunk(toClean), null, ProjectWrapper.this);
              cleared.addAll(toClean);
            }

            final Mappings delta = dependencyMapping.createDelta();
            final Callbacks.Backend deltaCallback = delta.getCallback();

            try {
              builder.buildChunk(c, flags.tests(), null, deltaCallback, ProjectWrapper.this);
            } catch (Exception e) {
              e.printStackTrace();
              return BuildStatus.FAILURE;
            }

            final Set<String> allFiles = new HashSet<String>();

            for (Module m : c.getElements()) {
              final ModuleWrapper module = getModule(m.getName());
              affectedFiles.removeAll(module.getSources(flags.tests()));
              allFiles.addAll(module.getSources(flags.tests()));
            }

            final Collection<File> files = new HashSet<File>();

            for (String f : allFiles) {
              files.add(new File(f));
            }

            dependencyMapping.integrate(delta, files, removedSources);

            for (Module m : chunkModules) {
              Reporter.reportBuildSuccess(m, flags.tests());
            }
          }
        }
      }

      return BuildStatus.INCREMENTAL;
    }
    BuildStatus iterativeCompile(
        final ModuleChunk chunk,
        final Set<String> sources,
        final Set<String> outdated,
        final Set<String> removed,
        final Flags flags) {
      final Collection<String> filesToCompile =
          DefaultGroovyMethods.intersect(affectedFiles, sources);

      if (outdated != null) {
        for (String s : outdated) {
          assert (s != null);
        }

        filesToCompile.addAll(outdated);
      }

      filesToCompile.removeAll(compiledFiles);

      if (!filesToCompile.isEmpty() || removed != null) {
        final Set<String> outputFiles = new HashSet<String>();

        for (String f : filesToCompile) {
          final Set<ClassRepr> classes = dependencyMapping.getClasses(f);

          if (classes != null) {
            for (ClassRepr cr : classes) {
              outputFiles.add(cr.getFileName());
            }
          }
        }

        if (removed != null) {
          for (String f : removed) {
            final Set<ClassRepr> classes = dependencyMapping.getClasses(f);
            if (classes != null) {
              for (ClassRepr cr : classes) {
                outputFiles.add(cr.getFileName());
              }
            }
          }
        }

        if (!outputFiles.isEmpty()) {
          new Logger(flags) {
            @Override
            public void log(PrintStream stream) {
              stream.println("Cleaning output files:");
              logFilePaths(stream, outputFiles);
              stream.println("End of files");
            }
          }.log();

          builder.clearChunk(chunk, outputFiles, ProjectWrapper.this);
        }

        final Mappings delta = dependencyMapping.createDelta();
        final Callbacks.Backend deltaBackend = delta.getCallback();

        new Logger(flags) {
          @Override
          public void log(PrintStream stream) {
            stream.println("Compiling files:");
            logFilePaths(stream, filesToCompile);
            stream.println("End of files");
          }
        }.log();

        boolean buildException = false;

        try {
          builder.buildChunk(
              chunk, flags.tests(), filesToCompile, deltaBackend, ProjectWrapper.this);
        } catch (Exception e) {
          e.printStackTrace();
          buildException = true;
        }

        if (!buildException) {
          compiledFiles.addAll(filesToCompile);
          affectedFiles.removeAll(filesToCompile);

          final Collection<File> files = new HashSet<File>();
          final Collection<File> compiled = new HashSet<File>();

          for (String f : filesToCompile) {
            files.add(new File(f));
          }

          for (String f : compiledFiles) {
            compiled.add(new File(f));
          }

          final Collection<File> affected = new HashSet<File>();

          final boolean incremental =
              dependencyMapping.differentiate(delta, removed, files, compiled, affected);

          for (File a : affected) {
            affectedFiles.add(FileUtil.toSystemIndependentName(a.getAbsolutePath()));
          }

          dependencyMapping.integrate(delta, files, removed);

          if (!incremental) {
            affectedFiles.addAll(sources);
            affectedFiles.removeAll(compiledFiles);

            final BuildStatus result = iterativeCompile(chunk, sources, null, null, flags);

            if (result == BuildStatus.FAILURE) {
              return result;
            }

            return BuildStatus.CONSERVATIVE;
          }

          return iterativeCompile(chunk, sources, null, null, flags);
        } else {
          return BuildStatus.FAILURE;
        }
      } else {
        for (Module m : chunk.getElements()) {
          Reporter.reportBuildSuccess(m, flags.tests());
        }
      }

      return BuildStatus.INCREMENTAL;
    }
  private static boolean doResourcePackaging(
      @NotNull CompileContext context,
      @NotNull Collection<Module> modules,
      @NotNull Map<Module, AndroidFileSetState> resourcesStates,
      @NotNull Map<Module, AndroidFileSetState> assetsStates)
      throws IOException {
    boolean success = true;

    final File dataStorageRoot = context.getDataManager().getDataStorageRoot();
    final boolean releaseBuild = AndroidJpsUtil.isReleaseBuild(context);
    AndroidFileSetStorage resourcesStorage = null;
    AndroidFileSetStorage assetsStorage = null;

    try {
      final String resourcesStorageName =
          releaseBuild ? "resources_packaging_release" : "resources_packaging_dev";
      resourcesStorage = new AndroidFileSetStorage(dataStorageRoot, resourcesStorageName);

      final String assetsStorageName =
          releaseBuild ? "assets_packaging_release" : "assets_packaging_dev";
      assetsStorage = new AndroidFileSetStorage(dataStorageRoot, assetsStorageName);

      final Set<Module> modulesToUpdateState = new HashSet<Module>();

      for (Module module : modules) {
        final AndroidFacet facet = AndroidJpsUtil.getFacet(module);
        if (facet == null) {
          continue;
        }

        boolean updateState = true;

        if (!facet.isLibrary()
            && !(context.isMake()
                && checkUpToDate(module, resourcesStates, resourcesStorage)
                && checkUpToDate(module, assetsStates, assetsStorage))) {

          updateState = packageResources(facet, context);

          if (!updateState) {
            success = false;
          }
        }
        if (updateState) {
          modulesToUpdateState.add(module);
        }
      }

      for (Module module : modules) {
        final boolean updateState = modulesToUpdateState.contains(module);
        resourcesStorage.update(module.getName(), updateState ? resourcesStates.get(module) : null);
        assetsStorage.update(module.getName(), updateState ? assetsStates.get(module) : null);
      }
    } finally {
      if (resourcesStorage != null) {
        resourcesStorage.close();
      }

      if (assetsStorage != null) {
        assetsStorage.close();
      }
    }
    return success;
  }