Reverting my .pub-cache change to figure out why it's still failing. (#13355)

* Revert "Add tests."

This reverts commit 31bad961ff2220a2708917ff8f748fed7efa9b51.

* Revert "Use .pub-cache from Flutter root, if it exists. (#13248)"

This reverts commit 72d6bcc3.

.gitignore

@@ -32,7 +32,6 @@
 **/doc/api/
 .flutter-plugins
 .packages
-.pub-cache/
 .pub/
 build/
 flutter_*.png

bin/flutter

@@ -16,7 +16,7 @@ set -e
 
 function follow_links() {
   cd -P "${1%/*}"
-  local file="$PWD/${1##*/}"
+  file="$PWD/${1##*/}"
   while [ -h "$file" ]; do
     # On Mac OS, readlink -f doesn't work.
     cd -P "${file%/*}"
@@ -33,39 +33,6 @@ function path_uri() {
   echo "$1" | sed -E -e "s,^/+,/,"
 }
 
-function upgrade_flutter () {
-  if hash flock 2>/dev/null; then
-    flock 3 # ensures that we don't simultaneously update Dart in multiple parallel instances
-    # some platforms (e.g. Mac) don't have flock or any reliable alternative
-  fi
-
-  local revision=`(cd "$FLUTTER_ROOT"; git rev-parse HEAD)`
-  if [ ! -f "$SNAPSHOT_PATH" ] || [ ! -s "$STAMP_PATH" ] || [ `cat "$STAMP_PATH"` != "$revision" ] || [ "$FLUTTER_TOOLS_DIR/pubspec.yaml" -nt "$FLUTTER_TOOLS_DIR/pubspec.lock" ]; then
-    mkdir -p "$FLUTTER_ROOT/bin/cache"
-    touch "$FLUTTER_ROOT/bin/cache/.dartignore"
-    "$FLUTTER_ROOT/bin/internal/update_dart_sdk.sh"
-
-    echo Building flutter tool...
-    if [ "$TRAVIS" == "true" ] || [ "$BOT" == "true" ] || [ "$CONTINUOUS_INTEGRATION" == "true" ] || [ "$CHROME_HEADLESS" == "1" ] || [ "$APPVEYOR" == "true" ] || [ "$CI" == "true" ]; then
-      PUB_ENVIRONMENT="$PUB_ENVIRONMENT:flutter_bot"
-    fi
-    export PUB_ENVIRONMENT="$PUB_ENVIRONMENT:flutter_install"
-
-    if [ -d "$FLUTTER_ROOT/.pub-cache" ]; then
-      export PUB_CACHE="${PUB_CACHE:-"$FLUTTER_ROOT/.pub-cache"}"
-    fi
-
-    while : ; do
-      cd "$FLUTTER_TOOLS_DIR"
-      "$PUB" upgrade --verbosity=error --no-packages-dir && break
-      echo Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds...
-      sleep 5
-    done
-    "$DART" --snapshot="$SNAPSHOT_PATH" --packages="$FLUTTER_TOOLS_DIR/.packages" "$SCRIPT_PATH"
-    echo "$revision" > "$STAMP_PATH"
-  fi
-}
-
 PROG_NAME="$(path_uri "$(follow_links "$BASH_SOURCE")")"
 BIN_DIR="$(cd "${PROG_NAME%/*}" ; pwd -P)"
 export FLUTTER_ROOT="$(cd "${BIN_DIR}/.." ; pwd -P)"
@@ -103,7 +70,33 @@ FLUTTER_TOOL_ARGS="--assert-initializer $FLUTTER_TOOL_ARGS"
 # FLUTTER_TOOL_ARGS="--checked $FLUTTER_TOOL_ARGS"
 # FLUTTER_TOOL_ARGS="$FLUTTER_TOOL_ARGS --observe=65432"
 
-(upgrade_flutter) 3< "$PROG_NAME"
+(
+  if hash flock 2>/dev/null; then
+    flock 3 # ensures that we don't simultaneously update Dart in multiple parallel instances
+    # some platforms (e.g. Mac) don't have flock or any reliable alternative
+  fi
+  REVISION=`(cd "$FLUTTER_ROOT"; git rev-parse HEAD)`
+  if [ ! -f "$SNAPSHOT_PATH" ] || [ ! -s "$STAMP_PATH" ] || [ `cat "$STAMP_PATH"` != "$REVISION" ] || [ "$FLUTTER_TOOLS_DIR/pubspec.yaml" -nt "$FLUTTER_TOOLS_DIR/pubspec.lock" ]; then
+    mkdir -p "$FLUTTER_ROOT/bin/cache"
+    touch "$FLUTTER_ROOT/bin/cache/.dartignore"
+    "$FLUTTER_ROOT/bin/internal/update_dart_sdk.sh"
+
+    echo Building flutter tool...
+    LOCAL_PUB_ENV="$PUB_ENVIRONMENT"
+    if [ "$TRAVIS" == "true" ] || [ "$BOT" == "true" ] || [ "$CONTINUOUS_INTEGRATION" == "true" ] || [ "$CHROME_HEADLESS" == "1" ] || [ "$APPVEYOR" == "true" ] || [ "$CI" == "true" ]; then
+      LOCAL_PUB_ENV="$LOCAL_PUB_ENV:flutter_bot"
+    fi
+    LOCAL_PUB_ENV="$LOCAL_PUB_ENV:flutter_install"
+    while : ; do
+      cd "$FLUTTER_TOOLS_DIR"
+      PUB_ENVIRONMENT="$LOCAL_PUB_ENV" "$PUB" upgrade --verbosity=error --no-packages-dir && break
+      echo Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds...
+      sleep 5
+    done
+    "$DART" --snapshot="$SNAPSHOT_PATH" --packages="$FLUTTER_TOOLS_DIR/.packages" "$SCRIPT_PATH"
+    echo $REVISION > "$STAMP_PATH"
+  fi
+) 3< "$PROG_NAME"
 
 set +e
 "$DART" $FLUTTER_TOOL_ARGS "$SNAPSHOT_PATH" "$@"

bin/flutter.bat

@@ -24,7 +24,6 @@ SET script_path=%flutter_tools_dir%\bin\flutter_tools.dart
 SET dart_sdk_path=%cache_dir%\dart-sdk
 SET dart_stamp_path=%cache_dir%\dart-sdk.stamp
 SET dart_version_path=%FLUTTER_ROOT%\bin\internal\dart-sdk.version
-SET pub_cache_path=%FLUTTER_ROOT%\.pub-cache
 
 SET dart=%dart_sdk_path%\bin\dart.exe
 SET pub=%dart_sdk_path%\bin\pub.bat
@@ -107,9 +106,6 @@ GOTO :after_subroutine
         SET PUB_ENVIRONMENT=%PUB_ENVIRONMENT%:flutter_bot
       :not_on_bot
       SET PUB_ENVIRONMENT=%PUB_ENVIRONMENT%:flutter_install
-      IF "%PUB_CACHE%" == "" (
-       IF EXIST "%pub_cache_path%" SET PUB_CACHE=%pub_cache_path%
-      )
       :retry_pub_upgrade
       CALL "%pub%" upgrade --verbosity=error --no-packages-dir
       IF "%ERRORLEVEL%" NEQ "0" (

dev/bots/docs.sh

@@ -3,29 +3,20 @@ set -e
 
 # If you want to run this script locally, make sure you run it from
 # the root of the flutter repository.
-export FLUTTER_ROOT="$PWD"
 
 # This is called from travis_upload.sh on Travis.
 
 # Make sure dart is installed
 bin/flutter --version
 
-# If the pub cache directory exists in the root, then use that.
-FLUTTER_PUB_CACHE="$FLUTTER_ROOT/.pub-cache"
-if [ -d "$FLUTTER_PUB_CACHE" ]; then
-  # This has to be exported, because pub interprets setting it
-  # to the empty string in the same way as setting it to ".".
-  export PUB_CACHE="${PUB_CACHE:-"$FLUTTER_PUB_CACHE"}"
-fi
-
 # Install dartdoc.
 bin/cache/dart-sdk/bin/pub global activate dartdoc 0.14.1
 
 # This script generates a unified doc set, and creates
 # a custom index.html, placing everything into dev/docs/doc.
 (cd dev/tools; ../../bin/cache/dart-sdk/bin/pub get)
-bin/cache/dart-sdk/bin/dart dev/tools/dartdoc.dart
-bin/cache/dart-sdk/bin/dart dev/tools/java_and_objc_doc.dart
+FLUTTER_ROOT=$PWD bin/cache/dart-sdk/bin/dart dev/tools/dartdoc.dart
+FLUTTER_ROOT=$PWD bin/cache/dart-sdk/bin/dart dev/tools/java_and_objc_doc.dart
 
 # Ensure google webmaster tools can verify our site.
 cp dev/docs/google2ed1af765c529f57.html dev/docs/doc

dev/bots/test.dart

@@ -14,7 +14,6 @@ final String flutterRoot = path.dirname(path.dirname(path.dirname(path.fromUri(P
 final String flutter = path.join(flutterRoot, 'bin', Platform.isWindows ? 'flutter.bat' : 'flutter');
 final String dart = path.join(flutterRoot, 'bin', 'cache', 'dart-sdk', 'bin', Platform.isWindows ? 'dart.exe' : 'dart');
 final String pub = path.join(flutterRoot, 'bin', 'cache', 'dart-sdk', 'bin', Platform.isWindows ? 'pub.bat' : 'pub');
-final String pubCache = path.join(flutterRoot, '.pub-cache');
 final String flutterTestArgs = Platform.environment['FLUTTER_TEST_ARGS'];
 final bool hasColor = stdout.supportsAnsiEscapes;
 
@@ -205,12 +204,8 @@ Future<Null> _pubRunTest(
   final List<String> args = <String>['run', 'test', '-j1', '-rexpanded'];
   if (testPath != null)
     args.add(testPath);
-  final Map<String, String> pubEnvironment = <String, String>{'DART_VM_OPTIONS': '--assert-initializer'};
-  if (new Directory(pubCache).existsSync()) {
-    pubEnvironment['PUB_CACHE'] = pubCache;
-  }
   return _runCommand(pub, args, workingDirectory: workingDirectory,
-      environment: pubEnvironment);
+      environment: <String, String>{'DART_VM_OPTIONS': '--assert-initializer'});
 }
 
 class EvalResult {

dev/tools/dartdoc.dart

@@ -65,25 +65,14 @@ dependencies:
   }
   new File('dev/docs/lib/temp_doc.dart').writeAsStringSync(contents.toString());
 
-  final String flutterRoot = Directory.current.path;
-  final Map<String, String> pubEnvironment = <String, String>{
-    'FLUTTER_ROOT': flutterRoot,
-  };
-
-  // If there's a .pub-cache dir in the flutter root, use that.
-  final String pubCachePath = '$flutterRoot/.pub-cache';
-  if (new Directory(pubCachePath).existsSync()) {
-    pubEnvironment['PUB_CACHE'] = pubCachePath;
-  }
-
-  final String pubExecutable = '$flutterRoot/bin/cache/dart-sdk/bin/pub';
-
   // Run pub.
   Process process = await Process.start(
-    pubExecutable,
+    '../../bin/cache/dart-sdk/bin/pub',
     <String>['get'],
     workingDirectory: 'dev/docs',
-    environment: pubEnvironment,
+    environment: <String, String>{
+      'FLUTTER_ROOT': Directory.current.path,
+    },
   );
   printStream(process.stdout, prefix: 'pub:stdout: ');
   printStream(process.stderr, prefix: 'pub:stderr: ');
@@ -95,10 +84,9 @@ dependencies:
 
   // Verify which version of dartdoc we're using.
   final ProcessResult result = Process.runSync(
-    pubExecutable,
+    '../../bin/cache/dart-sdk/bin/pub',
     <String>['global', 'run', 'dartdoc', '--version'],
     workingDirectory: 'dev/docs',
-    environment: pubEnvironment,
   );
   print('\n${result.stdout}');
 
@@ -125,10 +113,9 @@ dependencies:
   }
 
   process = await Process.start(
-    pubExecutable,
+    '../../bin/cache/dart-sdk/bin/pub',
     args,
     workingDirectory: 'dev/docs',
-    environment: pubEnvironment,
   );
   printStream(process.stdout, prefix: 'dartdoc:stdout: ',
     filter: kVerbose ? const <Pattern>[] : <Pattern>[

packages/flutter_tools/lib/src/dart/pub.dart

@@ -148,26 +148,16 @@ List<String> _pubCommand(List<String> arguments) {
 ///
 /// [context] provides extra information to package server requests to
 /// understand usage. It must match the regular expression `[a-z][a-z_]*[a-z]`.
-Map<String, String> _createPubEnvironment(String context) {
-  final Map<String, String> environment = <String, String>{
-    'FLUTTER_ROOT': Cache.flutterRoot,
-    _pubEnvironmentKey: _getPubEnvironmentValue(context),
-  };
-  final String pubCache = _getRootPubCacheIfAvailable();
-  if (pubCache != null) {
-    environment[_pubCacheEnvironmentKey] = pubCache;
-  }
-  return environment;
-}
+Map<String, String> _createPubEnvironment(String context) => <String, String>{
+  'FLUTTER_ROOT': Cache.flutterRoot,
+  _pubEnvironmentKey: _getPubEnvironmentValue(context),
+};
 
 final RegExp _analyzerWarning = new RegExp(r'^! \w+ [^ ]+ from path \.\./\.\./bin/cache/dart-sdk/lib/\w+$');
 
 /// The console environment key used by the pub tool.
 const String _pubEnvironmentKey = 'PUB_ENVIRONMENT';
 
-/// The console environment key used by the pub tool to find the cache directory.
-const String _pubCacheEnvironmentKey = 'PUB_CACHE';
-
 final RegExp _validContext = new RegExp('[a-z][a-z_]*[a-z]');
 
 /// Returns the environment value that should be used when running pub.
@@ -199,21 +189,6 @@ String _getPubEnvironmentValue(String pubContext) {
   return values.join(':');
 }
 
-String _getRootPubCacheIfAvailable() {
-  if (platform.environment.containsKey(_pubCacheEnvironmentKey)) {
-    return platform.environment[_pubCacheEnvironmentKey];
-  }
-
-  final String cachePath = fs.path.join(Cache.flutterRoot, '.pub-cache');
-  if (fs.directory(cachePath).existsSync()) {
-    printTrace('Using $cachePath for the pub cache.');
-    return cachePath;
-  }
-
-  // Use pub's default location by returning null.
-  return null;
-}
-
 String _filterOverrideWarnings(String message) {
   // This function filters out these three messages:
   //   Warning: You are using these overridden dependencies:

packages/flutter_tools/test/dart/pub_get_test.dart

@@ -8,9 +8,7 @@ import 'package:file/file.dart';
 import 'package:file/memory.dart';
 import 'package:flutter_tools/src/base/context.dart';
 import 'package:flutter_tools/src/base/io.dart';
-import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/dart/pub.dart';
-
 import 'package:mockito/mockito.dart';
 import 'package:process/process.dart';
 import 'package:quiver/testing/async.dart';
@@ -28,8 +26,8 @@ void main() {
       expect(processMock.lastPubEnvironmment, isNull);
       pubGet(context: 'flutter_tests', checkLastModified: false).then((Null value) {
         error = 'test completed unexpectedly';
-      }, onError: (dynamic thrownError) {
-        error = 'test failed unexpectedly: $thrownError';
+      }, onError: (dynamic error) {
+        error = 'test failed unexpectedly';
       });
       expect(testLogger.statusText, '');
       time.elapse(const Duration(milliseconds: 500));
@@ -38,7 +36,6 @@ void main() {
         'pub get failed (69) -- attempting retry 1 in 1 second...\n'
       );
       expect(processMock.lastPubEnvironmment, contains('flutter_cli:ctx_flutter_tests'));
-      expect(processMock.lastPubCache, isNull);
       time.elapse(const Duration(milliseconds: 500));
       expect(testLogger.statusText,
         'Running "flutter packages get" in /...\n'
@@ -83,55 +80,6 @@ void main() {
     ProcessManager: () => new MockProcessManager(69),
     FileSystem: () => new MockFileSystem(),
   });
-
-  testUsingContext('pub cache in root is used', () async {
-    String error;
-
-    final MockProcessManager processMock = context.getVariable(ProcessManager);
-
-    new FakeAsync().run((FakeAsync time) {
-      MockDirectory.findCache = true;
-      expect(processMock.lastPubEnvironmment, isNull);
-      expect(processMock.lastPubCache, isNull);
-      pubGet(context: 'flutter_tests', checkLastModified: false).then((Null value) {
-        error = 'test completed unexpectedly';
-      }, onError: (dynamic thrownError) {
-        error = 'test failed unexpectedly: $thrownError';
-      });
-      time.elapse(const Duration(milliseconds: 500));
-      expect(processMock.lastPubCache, endsWith('flutter/.pub-cache'));
-      expect(error, isNull);
-    });
-  }, overrides: <Type, Generator>{
-    ProcessManager: () => new MockProcessManager(69),
-    FileSystem: () => new MockFileSystem(),
-  });
-
-  testUsingContext('pub cache in environment is used', () async {
-    String error;
-
-    final MockProcessManager processMock = context.getVariable(ProcessManager);
-
-    new FakeAsync().run((FakeAsync time) {
-      MockDirectory.findCache = false;
-      expect(processMock.lastPubEnvironmment, isNull);
-      expect(processMock.lastPubCache, isNull);
-      pubGet(context: 'flutter_tests', checkLastModified: false).then((Null value) {
-        error = 'test completed unexpectedly';
-      }, onError: (dynamic thrownError) {
-        error = 'test failed unexpectedly: $thrownError';
-      });
-      time.elapse(const Duration(milliseconds: 500));
-      expect(processMock.lastPubCache, equals('path/to/pub-cache'));
-      expect(error, isNull);
-    });
-  }, overrides: <Type, Generator>{
-    ProcessManager: () => new MockProcessManager(69),
-    FileSystem: () => new MockFileSystem(),
-    Platform: () => new FakePlatform(
-      environment: <String, String>{'PUB_CACHE': 'path/to/pub-cache'},
-    ),
-  });
 }
 
 typedef void StartCallback(List<dynamic> command);
@@ -142,7 +90,6 @@ class MockProcessManager implements ProcessManager {
   final int fakeExitCode;
 
   String lastPubEnvironmment;
-  String lastPubCache;
 
   @override
   Future<Process> start(
@@ -154,7 +101,6 @@ class MockProcessManager implements ProcessManager {
     ProcessStartMode mode: ProcessStartMode.NORMAL,
   }) {
     lastPubEnvironmment = environment['PUB_ENVIRONMENT'];
-    lastPubCache = environment['PUB_CACHE'];
     return new Future<Process>.value(new MockProcess(fakeExitCode));
   }
 
@@ -213,11 +159,6 @@ class MockFileSystem extends MemoryFileSystem {
   File file(dynamic path) {
     return new MockFile();
   }
-
-  @override
-  Directory directory(dynamic path) {
-    return new MockDirectory(path);
-  }
 }
 
 class MockFile implements File {
@@ -236,19 +177,4 @@ class MockFile implements File {
   dynamic noSuchMethod(Invocation invocation) => null;
 }
 
-class MockDirectory implements Directory {
-  static bool findCache = false;
-
-  MockDirectory(this.path);
-
-  @override
-  final String path;
-
-  @override
-  bool existsSync() => findCache && path.endsWith('.pub-cache');
-
-  @override
-  dynamic noSuchMethod(Invocation invocation) => null;
-}
-
 class MockRandomAccessFile extends Mock implements RandomAccessFile {}