file: enable and fix latest team lints

pkgs/file/analysis_options.yaml

@@ -1,6 +1 @@
-include: package:lints/recommended.yaml
-
-analyzer:
-  errors:
-    # Allow having TODOs in the code
-    todo: ignore
+include: package:dart_flutter_team_lints/analysis_options.yaml

pkgs/file/example/main.dart

@@ -7,8 +7,8 @@ import 'package:file/memory.dart';
 
 Future<void> main() async {
   final FileSystem fs = MemoryFileSystem();
-  final Directory tmp = await fs.systemTempDirectory.createTemp('example_');
-  final File outputFile = tmp.childFile('output');
+  final tmp = await fs.systemTempDirectory.createTemp('example_');
+  final outputFile = tmp.childFile('output');
   await outputFile.writeAsString('Hello world!');
   print(outputFile.readAsStringSync());
 }

pkgs/file/lib/chroot.dart

@@ -3,4 +3,6 @@
 // BSD-style license that can be found in the LICENSE file.
 
 /// A file system that provides a view into _another_ `FileSystem` via a path.
+library;
+
 export 'src/backends/chroot.dart';

pkgs/file/lib/file.dart

@@ -4,5 +4,7 @@
 
 /// Core interfaces containing the abstract `FileSystem` interface definition
 /// and all associated types used by `FileSystem`.
+library;
+
 export 'src/forwarding.dart';
 export 'src/interface.dart';

pkgs/file/lib/local.dart

@@ -4,4 +4,6 @@
 
 /// A local file system implementation. This relies on the use of `dart:io`
 /// and is thus not suitable for use in the browser.
+library;
+
 export 'src/backends/local.dart';

pkgs/file/lib/memory.dart

@@ -4,5 +4,7 @@
 
 /// An implementation of `FileSystem` that exists entirely in memory with an
 /// internal representation loosely based on the Filesystem Hierarchy Standard.
+library;
+
 export 'src/backends/memory.dart';
 export 'src/backends/memory/operations.dart';

pkgs/file/lib/src/backends/chroot.dart

@@ -2,16 +2,15 @@
 // 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 file.src.backends.chroot;
-
 import 'dart:convert';
 import 'dart:typed_data';
 
-import 'package:file/file.dart';
-import 'package:file/src/common.dart' as common;
-import 'package:file/src/io.dart' as io;
 import 'package:path/path.dart' as p;
 
+import '../../file.dart';
+import '../common.dart' as common;
+import '../io.dart' as io;
+
 part 'chroot/chroot_directory.dart';
 part 'chroot/chroot_file.dart';
 part 'chroot/chroot_file_system.dart';

pkgs/file/lib/src/backends/chroot/chroot_directory.dart

@@ -2,18 +2,18 @@
 // 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.
 
-part of file.src.backends.chroot;
+part of '../chroot.dart';
 
 class _ChrootDirectory extends _ChrootFileSystemEntity<Directory, io.Directory>
     with ForwardingDirectory<Directory>, common.DirectoryAddOnsMixin {
-  _ChrootDirectory(ChrootFileSystem fs, String path) : super(fs, path);
+  _ChrootDirectory(super.fs, super.path);
 
   factory _ChrootDirectory.wrapped(
     ChrootFileSystem fs,
     Directory delegate, {
     bool relative = false,
   }) {
-    String localPath = fs._local(delegate.path, relative: relative);
+    var localPath = fs._local(delegate.path, relative: relative);
     return _ChrootDirectory(fs, localPath);
   }
 
@@ -32,7 +32,7 @@ class _ChrootDirectory extends _ChrootFileSystemEntity<Directory, io.Directory>
       if (await fileSystem.type(path) != expectedType) {
         throw common.notADirectory(path);
       }
-      FileSystemEntityType type = await fileSystem.type(newPath);
+      var type = await fileSystem.type(newPath);
       if (type != FileSystemEntityType.notFound) {
         if (type != expectedType) {
           throw common.notADirectory(newPath);
@@ -44,7 +44,7 @@ class _ChrootDirectory extends _ChrootFileSystemEntity<Directory, io.Directory>
           throw common.directoryNotEmpty(newPath);
         }
       }
-      String target = await fileSystem.link(path).target();
+      var target = await fileSystem.link(path).target();
       await fileSystem.link(path).delete();
       await fileSystem.link(newPath).create(target);
       return fileSystem.directory(newPath);
@@ -60,7 +60,7 @@ class _ChrootDirectory extends _ChrootFileSystemEntity<Directory, io.Directory>
       if (fileSystem.typeSync(path) != expectedType) {
         throw common.notADirectory(path);
       }
-      FileSystemEntityType type = fileSystem.typeSync(newPath);
+      var type = fileSystem.typeSync(newPath);
       if (type != FileSystemEntityType.notFound) {
         if (type != expectedType) {
           throw common.notADirectory(newPath);
@@ -72,7 +72,7 @@ class _ChrootDirectory extends _ChrootFileSystemEntity<Directory, io.Directory>
           throw common.directoryNotEmpty(newPath);
         }
       }
-      String target = fileSystem.link(path).targetSync();
+      var target = fileSystem.link(path).targetSync();
       fileSystem.link(path).deleteSync();
       fileSystem.link(newPath).createSync(target);
       return fileSystem.directory(newPath);
@@ -97,17 +97,15 @@ class _ChrootDirectory extends _ChrootFileSystemEntity<Directory, io.Directory>
   @override
   Future<Directory> create({bool recursive = false}) async {
     if (_isLink) {
-      switch (await fileSystem.type(path)) {
-        case FileSystemEntityType.notFound:
-          throw common.noSuchFileOrDirectory(path);
-        case FileSystemEntityType.file:
-          throw common.fileExists(path);
-        case FileSystemEntityType.directory:
+      return switch (await fileSystem.type(path)) {
+        FileSystemEntityType.notFound =>
+          throw common.noSuchFileOrDirectory(path),
+        FileSystemEntityType.file => throw common.fileExists(path),
+        FileSystemEntityType.directory =>
           // Nothing to do.
-          return this;
-        default:
-          throw AssertionError();
-      }
+          this,
+        _ => throw AssertionError()
+      };
     } else {
       return wrap(await delegate.create(recursive: recursive));
     }
@@ -137,8 +135,8 @@ class _ChrootDirectory extends _ChrootFileSystemEntity<Directory, io.Directory>
     bool recursive = false,
     bool followLinks = true,
   }) {
-    Directory delegate = this.delegate as Directory;
-    String dirname = delegate.path;
+    var delegate = this.delegate as Directory;
+    var dirname = delegate.path;
     return delegate
         .list(recursive: recursive, followLinks: followLinks)
         .map((io.FileSystemEntity entity) => _denormalize(entity, dirname));
@@ -149,18 +147,18 @@ class _ChrootDirectory extends _ChrootFileSystemEntity<Directory, io.Directory>
     bool recursive = false,
     bool followLinks = true,
   }) {
-    Directory delegate = this.delegate as Directory;
-    String dirname = delegate.path;
+    var delegate = this.delegate as Directory;
+    var dirname = delegate.path;
     return delegate
         .listSync(recursive: recursive, followLinks: followLinks)
         .map((io.FileSystemEntity entity) => _denormalize(entity, dirname))
         .toList();
   }
 
   FileSystemEntity _denormalize(io.FileSystemEntity entity, String dirname) {
-    p.Context ctx = fileSystem.path;
-    String relativePart = ctx.relative(entity.path, from: dirname);
-    String entityPath = ctx.join(path, relativePart);
+    var ctx = fileSystem.path;
+    var relativePart = ctx.relative(entity.path, from: dirname);
+    var entityPath = ctx.join(path, relativePart);
     if (entity is io.File) {
       return _ChrootFile(fileSystem, entityPath);
     } else if (entity is io.Directory) {

pkgs/file/lib/src/backends/chroot/chroot_file.dart

@@ -2,20 +2,20 @@
 // 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.
 
-part of file.src.backends.chroot;
+part of '../chroot.dart';
 
 typedef _SetupCallback = dynamic Function();
 
 class _ChrootFile extends _ChrootFileSystemEntity<File, io.File>
     with ForwardingFile {
-  _ChrootFile(ChrootFileSystem fs, String path) : super(fs, path);
+  _ChrootFile(super.fs, super.path);
 
   factory _ChrootFile.wrapped(
     ChrootFileSystem fs,
     io.File delegate, {
     bool relative = false,
   }) {
-    String localPath = fs._local(delegate.path, relative: relative);
+    var localPath = fs._local(delegate.path, relative: relative);
     return _ChrootFile(fs, localPath);
   }
 
@@ -126,7 +126,7 @@ class _ChrootFile extends _ChrootFileSystemEntity<File, io.File>
 
   @override
   Future<File> create({bool recursive = false, bool exclusive = false}) async {
-    String path = fileSystem._resolve(
+    var path = fileSystem._resolve(
       this.path,
       followLinks: false,
       notFound: recursive ? _NotFoundBehavior.mkdir : _NotFoundBehavior.allow,
@@ -158,7 +158,7 @@ class _ChrootFile extends _ChrootFileSystemEntity<File, io.File>
 
   @override
   void createSync({bool recursive = false, bool exclusive = false}) {
-    String path = fileSystem._resolve(
+    var path = fileSystem._resolve(
       this.path,
       followLinks: false,
       notFound: recursive ? _NotFoundBehavior.mkdir : _NotFoundBehavior.allow,

pkgs/file/lib/src/backends/chroot/chroot_file_system.dart

@@ -2,7 +2,7 @@
 // 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.
 
-part of file.src.backends.chroot;
+part of '../chroot.dart';
 
 const String _thisDir = '.';
 const String _parentDir = '..';
@@ -107,7 +107,7 @@ class ChrootFileSystem extends FileSystem {
     }
 
     value = _resolve(value, notFound: _NotFoundBehavior.throwError);
-    String realPath = _real(value, resolve: false);
+    var realPath = _real(value, resolve: false);
     switch (delegate.typeSync(realPath, followLinks: false)) {
       case FileSystemEntityType.directory:
         break;
@@ -117,7 +117,7 @@ class ChrootFileSystem extends FileSystem {
         throw common.notADirectory(path as String);
     }
     assert(() {
-      p.Context ctx = delegate.path;
+      var ctx = delegate.path;
       return ctx.isAbsolute(value) && value == ctx.canonicalize(value);
     }());
     _cwd = value;
@@ -201,7 +201,7 @@ class ChrootFileSystem extends FileSystem {
       throw _ChrootJailException();
     }
     // TODO(tvolkert): See if _context.relative() works here
-    String result = realPath.substring(root.length);
+    var result = realPath.substring(root.length);
     if (result.isEmpty) {
       result = _localRoot;
     }
@@ -263,8 +263,8 @@ class ChrootFileSystem extends FileSystem {
       throw common.noSuchFileOrDirectory(path);
     }
 
-    p.Context ctx = this.path;
-    String root = _localRoot;
+    var ctx = this.path;
+    var root = _localRoot;
     List<String> parts, ledger;
     if (ctx.isAbsolute(path)) {
       parts = ctx.split(path).sublist(1);
@@ -277,9 +277,9 @@ class ChrootFileSystem extends FileSystem {
     }
 
     String getCurrentPath() => root + ctx.joinAll(ledger);
-    Set<String> breadcrumbs = <String>{};
+    var breadcrumbs = <String>{};
     while (parts.isNotEmpty) {
-      String segment = parts.removeAt(0);
+      var segment = parts.removeAt(0);
       if (segment == _thisDir) {
         continue;
       } else if (segment == _parentDir) {
@@ -290,8 +290,8 @@ class ChrootFileSystem extends FileSystem {
       }
 
       ledger.add(segment);
-      String currentPath = getCurrentPath();
-      String realPath = _real(currentPath, resolve: false);
+      var currentPath = getCurrentPath();
+      var realPath = _real(currentPath, resolve: false);
 
       switch (delegate.typeSync(realPath, followLinks: false)) {
         case FileSystemEntityType.directory:
@@ -333,7 +333,7 @@ class ChrootFileSystem extends FileSystem {
           if (!breadcrumbs.add(currentPath)) {
             throw common.tooManyLevelsOfSymbolicLinks(path);
           }
-          String target = delegate.link(realPath).targetSync();
+          var target = delegate.link(realPath).targetSync();
           if (ctx.isAbsolute(target)) {
             ledger.clear();
             parts.insertAll(0, ctx.split(target).sublist(1));

pkgs/file/lib/src/backends/chroot/chroot_file_system_entity.dart

@@ -2,7 +2,7 @@
 // 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.
 
-part of file.src.backends.chroot;
+part of '../chroot.dart';
 
 abstract class _ChrootFileSystemEntity<T extends FileSystemEntity,
     D extends io.FileSystemEntity> extends ForwardingFileSystemEntity<T, D> {
@@ -103,7 +103,7 @@ abstract class _ChrootFileSystemEntity<T extends FileSystemEntity,
 
   @override
   Future<T> delete({bool recursive = false}) async {
-    String path = fileSystem._resolve(this.path,
+    var path = fileSystem._resolve(this.path,
         followLinks: false, notFound: _NotFoundBehavior.throwError);
 
     String real(String path) => fileSystem._real(path, resolve: false);
@@ -114,7 +114,7 @@ abstract class _ChrootFileSystemEntity<T extends FileSystemEntity,
       if (expectedType == FileSystemEntityType.link) {
         await fileSystem.delegate.link(real(path)).delete();
       } else {
-        String resolvedPath = fileSystem._resolve(p.basename(path),
+        var resolvedPath = fileSystem._resolve(p.basename(path),
             from: p.dirname(path), notFound: _NotFoundBehavior.allowAtTail);
         if (!recursive && await type(resolvedPath) != expectedType) {
           throw expectedType == FileSystemEntityType.file
@@ -132,7 +132,7 @@ abstract class _ChrootFileSystemEntity<T extends FileSystemEntity,
 
   @override
   void deleteSync({bool recursive = false}) {
-    String path = fileSystem._resolve(this.path,
+    var path = fileSystem._resolve(this.path,
         followLinks: false, notFound: _NotFoundBehavior.throwError);
 
     String real(String path) => fileSystem._real(path, resolve: false);
@@ -143,7 +143,7 @@ abstract class _ChrootFileSystemEntity<T extends FileSystemEntity,
       if (expectedType == FileSystemEntityType.link) {
         fileSystem.delegate.link(real(path)).deleteSync();
       } else {
-        String resolvedPath = fileSystem._resolve(p.basename(path),
+        var resolvedPath = fileSystem._resolve(p.basename(path),
             from: p.dirname(path), notFound: _NotFoundBehavior.allowAtTail);
         if (!recursive && type(resolvedPath) != expectedType) {
           throw expectedType == FileSystemEntityType.file

pkgs/file/lib/src/backends/chroot/chroot_link.dart

@@ -2,18 +2,18 @@
 // 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.
 
-part of file.src.backends.chroot;
+part of '../chroot.dart';
 
 class _ChrootLink extends _ChrootFileSystemEntity<Link, io.Link>
     with ForwardingLink {
-  _ChrootLink(ChrootFileSystem fs, String path) : super(fs, path);
+  _ChrootLink(super.fs, super.path);
 
   factory _ChrootLink.wrapped(
     ChrootFileSystem fs,
     io.Link delegate, {
     bool relative = false,
   }) {
-    String localPath = fs._local(delegate.path, relative: relative);
+    var localPath = fs._local(delegate.path, relative: relative);
     return _ChrootLink(fs, localPath);
   }
 

pkgs/file/lib/src/backends/chroot/chroot_random_access_file.dart

@@ -2,7 +2,7 @@
 // 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.
 
-part of file.src.backends.chroot;
+part of '../chroot.dart';
 
 class _ChrootRandomAccessFile with ForwardingRandomAccessFile {
   _ChrootRandomAccessFile(this.path, this.delegate);