Roll Observatory deps (charted -> ^0.3.0)

packages/dart_style/lib/src/io.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library dart_style.src.io;
 
 import 'dart:io';
 
 import 'package:path/path.dart' as p;
 
 import 'dart_formatter.dart';
 import 'formatter_exception.dart';
 import 'formatter_options.dart';
 import 'source_code.dart';
 
 /// Runs the formatter on every .dart file in [path] (and its subdirectories),
 /// and replaces them with their formatted output.
 ///
 /// Returns `true` if successful or `false` if an error occurred in any of the
 /// files.
 bool processDirectory(FormatterOptions options, Directory directory) {
   options.reporter.showDirectory(directory.path);
 
   var success = true;
+  var shownHiddenPaths = new Set<String>();
+
   for (var entry in directory.listSync(
       recursive: true, followLinks: options.followLinks)) {
     var relative = p.relative(entry.path, from: directory.path);
 
     if (entry is Link) {
       options.reporter.showSkippedLink(relative);
       continue;
     }
 
     if (entry is! File || !entry.path.endsWith(".dart")) continue;
 
     // If the path is in a subdirectory starting with ".", ignore it.
-    if (p.split(relative).any((part) => part.startsWith("."))) {
-      options.reporter.showHiddenFile(relative);
+    var parts = p.split(relative);
+    var hiddenIndex;
+    for (var i = 0; i < parts.length; i++) {
+      if (parts[i].startsWith(".")) {
+        hiddenIndex = i;
+        break;
+      }
+    }
+
+    if (hiddenIndex != null) {
+      // Since we'll hide everything inside the directory starting with ".",
+      // show the directory name once instead of once for each file.
+      var hiddenPath = p.joinAll(parts.take(hiddenIndex + 1));
+      if (shownHiddenPaths.add(hiddenPath)) {
+        options.reporter.showHiddenPath(hiddenPath);
+      }
       continue;
     }
 
     if (!processFile(options, entry, label: relative)) success = false;
   }
 
   return success;
 }
 
 /// Runs the formatter on [file].
 ///
 /// Returns `true` if successful or `false` if an error occurred.
 bool processFile(FormatterOptions options, File file, {String label}) {
   if (label == null) label = file.path;
 
-  var formatter = new DartFormatter(pageWidth: options.pageWidth);
+  var formatter =
+      new DartFormatter(indent: options.indent, pageWidth: options.pageWidth);
   try {
     var source = new SourceCode(file.readAsStringSync(), uri: file.path);
+    options.reporter.beforeFile(file, label);
     var output = formatter.formatSource(source);
     options.reporter
-        .showFile(file, label, output, changed: source.text != output.text);
+        .afterFile(file, label, output, changed: source.text != output.text);
     return true;
   } on FormatterException catch (err) {
     var color = Platform.operatingSystem != "windows" &&
         stdioType(stderr) == StdioType.TERMINAL;
 
     stderr.writeln(err.message(color: color));
   } catch (err, stack) {
     stderr.writeln('''Hit a bug in the formatter when formatting $label.
 Please report at: github.com/dart-lang/dart_style/issues
 $err
 $stack''');
   }
 
   return false;
 }