Respect git's ignore rules pervasively in pub.

sdk/lib/_internal/pub/lib/src/entrypoint.dart

Index: sdk/lib/_internal/pub/lib/src/entrypoint.dart
diff --git a/sdk/lib/_internal/pub/lib/src/entrypoint.dart b/sdk/lib/_internal/pub/lib/src/entrypoint.dart
index ce4d11f614433e0d5ebc2f772e82ceb2d993c0f2..346a077b54653bfe5a48f9316811c8a6535a7bdf 100644
--- a/sdk/lib/_internal/pub/lib/src/entrypoint.dart
+++ b/sdk/lib/_internal/pub/lib/src/entrypoint.dart
@@ -8,7 +8,6 @@ import 'dart:async';
 
 import 'package:path/path.dart' as path;
 
-import 'git.dart' as git;
 import 'io.dart';
 import 'lock_file.dart';
 import 'log.dart' as log;
@@ -326,50 +325,4 @@ class Entrypoint {
     if (entryExists(symlink)) deleteEntry(symlink);
     createSymlink(packagesDir, symlink, relative: true);
   }
-
-  /// The basenames of files that are automatically excluded from archives.
-  final _BLACKLISTED_FILES = const ['pubspec.lock'];
-
-  /// The basenames of directories that are automatically excluded from
-  /// archives.
-  final _BLACKLISTED_DIRS = const ['packages'];
-
-  /// Returns a list of files that are considered to be part of this package.
-  ///
-  /// If this is a Git repository, this will respect .gitignore; otherwise, it
-  /// will return all non-hidden, non-blacklisted files.
-  ///
-  /// If [beneath] is passed, this will only return files beneath that path.
-  List<String> packageFiles({String beneath}) {
-    if (beneath == null) beneath = root.dir;
-
-    var files;
-    if (git.isInstalled && dirExists(path.join(root.dir, '.git'))) {
-      // Later versions of git do not allow a path for ls-files that appears to
-      // be outside of the repo, so make sure we give it a relative path.
-      var relativeBeneath = path.relative(beneath, from: root.dir);
-
-      // List all files that aren't gitignored, including those not checked in
-      // to Git.
-      files = git.runSync(
-          ["ls-files", "--cached", "--others", "--exclude-standard",
-           relativeBeneath],
-          workingDir: root.dir);
-      // Git always prints files relative to the project root, but we want them
-      // relative to the working directory. It also prints forward slashes on
-      // Windows which we normalize away for easier testing.
-      files = files.map((file) => path.normalize(path.join(root.dir, file)));
-    } else {
-      files = listDir(beneath, recursive: true);
-    }
-
-    return files.where((file) {
-      // Skip directories and broken symlinks.
-      if (!fileExists(file)) return false;
-
-      var relative = path.relative(file, from: beneath);
-      if (_BLACKLISTED_FILES.contains(path.basename(relative))) return false;
-      return !path.split(relative).any(_BLACKLISTED_DIRS.contains);
-    }).toList();
-  }
 }