Revert revision 23438.

sdk/bin/pub

 #!/bin/bash
-# Copyright (c) 2013, 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.
+# Run pub.dart on the Dart VM. This script assumes the Dart SDK's directory
+# structure.
 
-function follow_links() {
-  while [ -h "$1" ]; do
-    # On Mac OS, readlink -f doesn't work.
-    1="$(readlink "$1")"
-  done
-  echo "$1"
-}
+# Setting BIN_DIR this way is ugly, but is needed to handle the case where
+# dart-sdk/bin has been symlinked to. On MacOS, readlink doesn't work
+# with this case.
+BIN_DIR="$(cd "${0%/*}" ; pwd -P)"
+DART_SDK="$(cd "${BIN_DIR%/*}" ; pwd -P)"
 
-# Unlike $0, $BASH_SOURCE points to the absolute path of this file.
-PROG_NAME="$(follow_links "$BASH_SOURCE")"
-
-# Handle the case where dart-sdk/bin has been symlinked to.
-BIN_DIR="$(follow_links "$(cd "${PROG_NAME%/*}" ; pwd -P)")"
-
-SDK_DIR="$(cd "${BIN_DIR}/.." ; pwd -P)"
-
-DART="$BIN_DIR/dart"
-
-SNAPSHOT="$BIN_DIR/snapshots/pub.dart.snapshot"
-
-if test -f "$SNAPSHOT"; then
-  # We are running the snapshot in the built SDK.
-  exec "$DART" "--checked" "$SNAPSHOT" "$@"
-else
-  # We are running pub from source in the development repo.
-  if [ -z "$DART_CONFIGURATION" ];
-  then
-    DART_CONFIGURATION="ReleaseIA32"
-  fi
-
-  if [[ `uname` == 'Darwin' ]];
-  then
-    PACKAGES_DIR="$SDK_DIR"/../xcodebuild/$DART_CONFIGURATION/packages/
-  else
-    PACKAGES_DIR="$SDK_DIR"/../out/$DART_CONFIGURATION/packages/
-  fi
-
-  PUB="$SDK_DIR/lib/_internal/pub/bin/pub.dart"
-
-  exec "$DART" "--checked" "--package-root=$PACKAGES_DIR" "$PUB" "$@"
-fi
+exec "$BIN_DIR"/dart "$DART_SDK"/bin/snapshots/pub.dart.snapshot $@