blob: e7ecb7c8dfc850bb4a86fbb0691e42fe3138bb32 [file] [log] [blame]
// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:async';
import 'android/android_studio_validator.dart';
import 'android/android_workflow.dart';
import 'artifacts.dart';
import 'base/async_guard.dart';
import 'base/common.dart';
import 'base/context.dart';
import 'base/file_system.dart';
import 'base/logger.dart';
import 'base/os.dart';
import 'base/platform.dart';
import 'base/process.dart';
import 'base/terminal.dart';
import 'base/user_messages.dart';
import 'base/utils.dart';
import 'base/version.dart';
import 'cache.dart';
import 'device.dart';
import 'fuchsia/fuchsia_workflow.dart';
import 'globals.dart';
import 'intellij/intellij.dart';
import 'ios/ios_workflow.dart';
import 'ios/plist_parser.dart';
import 'linux/linux_doctor.dart';
import 'linux/linux_workflow.dart';
import 'macos/cocoapods_validator.dart';
import 'macos/macos_workflow.dart';
import 'macos/xcode_validator.dart';
import 'proxy_validator.dart';
import 'reporting/reporting.dart';
import 'tester/flutter_tester.dart';
import 'version.dart';
import 'vscode/vscode_validator.dart';
import 'web/web_validator.dart';
import 'web/workflow.dart';
import 'windows/visual_studio_validator.dart';
import 'windows/windows_workflow.dart';
Doctor get doctor => context.get<Doctor>();
abstract class DoctorValidatorsProvider {
/// The singleton instance, pulled from the [AppContext].
static DoctorValidatorsProvider get instance => context.get<DoctorValidatorsProvider>();
static final DoctorValidatorsProvider defaultInstance = _DefaultDoctorValidatorsProvider();
List<DoctorValidator> get validators;
List<Workflow> get workflows;
}
class _DefaultDoctorValidatorsProvider implements DoctorValidatorsProvider {
List<DoctorValidator> _validators;
List<Workflow> _workflows;
@override
List<DoctorValidator> get validators {
if (_validators != null) {
return _validators;
}
final List<DoctorValidator> ideValidators = <DoctorValidator>[
...AndroidStudioValidator.allValidators,
...IntelliJValidator.installedValidators,
...VsCodeValidator.installedValidators,
];
_validators = <DoctorValidator>[
FlutterValidator(),
if (androidWorkflow.appliesToHostPlatform)
GroupedValidator(<DoctorValidator>[androidValidator, androidLicenseValidator]),
if (iosWorkflow.appliesToHostPlatform || macOSWorkflow.appliesToHostPlatform)
GroupedValidator(<DoctorValidator>[xcodeValidator, cocoapodsValidator]),
if (webWorkflow.appliesToHostPlatform)
const WebValidator(),
if (linuxWorkflow.appliesToHostPlatform)
LinuxDoctorValidator(),
if (windowsWorkflow.appliesToHostPlatform)
visualStudioValidator,
if (ideValidators.isNotEmpty)
...ideValidators
else
NoIdeValidator(),
if (ProxyValidator.shouldShow)
ProxyValidator(),
if (deviceManager.canListAnything)
DeviceValidator(),
];
return _validators;
}
@override
List<Workflow> get workflows {
if (_workflows == null) {
_workflows = <Workflow>[];
if (iosWorkflow.appliesToHostPlatform) {
_workflows.add(iosWorkflow);
}
if (androidWorkflow.appliesToHostPlatform) {
_workflows.add(androidWorkflow);
}
if (fuchsiaWorkflow.appliesToHostPlatform) {
_workflows.add(fuchsiaWorkflow);
}
if (linuxWorkflow.appliesToHostPlatform) {
_workflows.add(linuxWorkflow);
}
if (macOSWorkflow.appliesToHostPlatform) {
_workflows.add(macOSWorkflow);
}
if (windowsWorkflow.appliesToHostPlatform) {
_workflows.add(windowsWorkflow);
}
if (webWorkflow.appliesToHostPlatform) {
_workflows.add(webWorkflow);
}
}
return _workflows;
}
}
class ValidatorTask {
ValidatorTask(this.validator, this.result);
final DoctorValidator validator;
final Future<ValidationResult> result;
}
class Doctor {
const Doctor();
List<DoctorValidator> get validators {
return DoctorValidatorsProvider.instance.validators;
}
/// Return a list of [ValidatorTask] objects and starts validation on all
/// objects in [validators].
List<ValidatorTask> startValidatorTasks() => <ValidatorTask>[
for (DoctorValidator validator in validators)
ValidatorTask(
validator,
// We use an asyncGuard() here to be absolutely certain that
// DoctorValidators do not result in an uncaught exception. Since the
// Future returned by the asyncGuard() is not awaited, we pass an
// onError callback to it and translate errors into ValidationResults.
asyncGuard<ValidationResult>(
validator.validate,
onError: (Object exception, StackTrace stackTrace) {
return ValidationResult.crash(exception, stackTrace);
},
),
),
];
List<Workflow> get workflows {
return DoctorValidatorsProvider.instance.workflows;
}
/// Print a summary of the state of the tooling, as well as how to get more info.
Future<void> summary() async {
printStatus(await _summaryText());
}
Future<String> _summaryText() async {
final StringBuffer buffer = StringBuffer();
bool missingComponent = false;
bool sawACrash = false;
for (DoctorValidator validator in validators) {
final StringBuffer lineBuffer = StringBuffer();
ValidationResult result;
try {
result = await asyncGuard<ValidationResult>(() => validator.validate());
} catch (exception) {
// We're generating a summary, so drop the stack trace.
result = ValidationResult.crash(exception);
}
lineBuffer.write('${result.coloredLeadingBox} ${validator.title}: ');
switch (result.type) {
case ValidationType.crash:
lineBuffer.write('the doctor check crashed without a result.');
sawACrash = true;
break;
case ValidationType.missing:
lineBuffer.write('is not installed.');
break;
case ValidationType.partial:
lineBuffer.write('is partially installed; more components are available.');
break;
case ValidationType.notAvailable:
lineBuffer.write('is not available.');
break;
case ValidationType.installed:
lineBuffer.write('is fully installed.');
break;
}
if (result.statusInfo != null) {
lineBuffer.write(' (${result.statusInfo})');
}
buffer.write(wrapText(lineBuffer.toString(), hangingIndent: result.leadingBox.length + 1));
buffer.writeln();
if (result.type != ValidationType.installed) {
missingComponent = true;
}
}
if (sawACrash) {
buffer.writeln();
buffer.writeln('Run "flutter doctor" for information about why a doctor check crashed.');
}
if (missingComponent) {
buffer.writeln();
buffer.writeln('Run "flutter doctor" for information about installing additional components.');
}
return buffer.toString();
}
Future<bool> checkRemoteArtifacts(String engineRevision) async {
return Cache.instance.areRemoteArtifactsAvailable(engineVersion: engineRevision);
}
/// Print information about the state of installed tooling.
Future<bool> diagnose({ bool androidLicenses = false, bool verbose = true, bool showColor = true }) async {
if (androidLicenses) {
return AndroidLicenseValidator.runLicenseManager();
}
if (!verbose) {
printStatus('Doctor summary (to see all details, run flutter doctor -v):');
}
bool doctorResult = true;
int issues = 0;
for (ValidatorTask validatorTask in startValidatorTasks()) {
final DoctorValidator validator = validatorTask.validator;
final Status status = Status.withSpinner(
timeout: timeoutConfiguration.fastOperation,
slowWarningCallback: () => validator.slowWarning,
);
ValidationResult result;
try {
result = await validatorTask.result;
} catch (exception, stackTrace) {
result = ValidationResult.crash(exception, stackTrace);
} finally {
status.stop();
}
switch (result.type) {
case ValidationType.crash:
doctorResult = false;
issues += 1;
break;
case ValidationType.missing:
doctorResult = false;
issues += 1;
break;
case ValidationType.partial:
case ValidationType.notAvailable:
issues += 1;
break;
case ValidationType.installed:
break;
}
DoctorResultEvent(validator: validator, result: result).send();
final String leadingBox = showColor ? result.coloredLeadingBox : result.leadingBox;
if (result.statusInfo != null) {
printStatus('$leadingBox ${validator.title} (${result.statusInfo})',
hangingIndent: result.leadingBox.length + 1);
} else {
printStatus('$leadingBox ${validator.title}',
hangingIndent: result.leadingBox.length + 1);
}
for (ValidationMessage message in result.messages) {
if (message.type != ValidationMessageType.information || verbose == true) {
int hangingIndent = 2;
int indent = 4;
final String indicator = showColor ? message.coloredIndicator : message.indicator;
for (String line in '$indicator ${message.message}'.split('\n')) {
printStatus(line, hangingIndent: hangingIndent, indent: indent, emphasis: true);
// Only do hanging indent for the first line.
hangingIndent = 0;
indent = 6;
}
}
}
if (verbose) {
printStatus('');
}
}
// Make sure there's always one line before the summary even when not verbose.
if (!verbose) {
printStatus('');
}
if (issues > 0) {
printStatus('${showColor ? terminal.color('!', TerminalColor.yellow) : '!'} Doctor found issues in $issues categor${issues > 1 ? "ies" : "y"}.', hangingIndent: 2);
} else {
printStatus('${showColor ? terminal.color('', TerminalColor.green) : ''} No issues found!', hangingIndent: 2);
}
return doctorResult;
}
bool get canListAnything => workflows.any((Workflow workflow) => workflow.canListDevices);
bool get canLaunchAnything {
if (FlutterTesterDevices.showFlutterTesterDevice) {
return true;
}
return workflows.any((Workflow workflow) => workflow.canLaunchDevices);
}
}
/// A series of tools and required install steps for a target platform (iOS or Android).
abstract class Workflow {
const Workflow();
/// Whether the workflow applies to this platform (as in, should we ever try and use it).
bool get appliesToHostPlatform;
/// Are we functional enough to list devices?
bool get canListDevices;
/// Could this thing launch *something*? It may still have minor issues.
bool get canLaunchDevices;
/// Are we functional enough to list emulators?
bool get canListEmulators;
}
enum ValidationType {
crash,
missing,
partial,
notAvailable,
installed,
}
enum ValidationMessageType {
error,
hint,
information,
}
abstract class DoctorValidator {
const DoctorValidator(this.title);
/// This is displayed in the CLI.
final String title;
String get slowWarning => 'This is taking an unexpectedly long time...';
Future<ValidationResult> validate();
}
/// A validator that runs other [DoctorValidator]s and combines their output
/// into a single [ValidationResult]. It uses the title of the first validator
/// passed to the constructor and reports the statusInfo of the first validator
/// that provides one. Other titles and statusInfo strings are discarded.
class GroupedValidator extends DoctorValidator {
GroupedValidator(this.subValidators) : super(subValidators[0].title);
final List<DoctorValidator> subValidators;
List<ValidationResult> _subResults;
/// Sub-validator results.
///
/// To avoid losing information when results are merged, the sub-results are
/// cached on this field when they are available. The results are in the same
/// order as the sub-validator list.
List<ValidationResult> get subResults => _subResults;
@override
String get slowWarning => _currentSlowWarning;
String _currentSlowWarning = 'Initializing...';
@override
Future<ValidationResult> validate() async {
final List<ValidatorTask> tasks = <ValidatorTask>[
for (DoctorValidator validator in subValidators)
ValidatorTask(
validator,
asyncGuard<ValidationResult>(() => validator.validate()),
),
];
final List<ValidationResult> results = <ValidationResult>[];
for (ValidatorTask subValidator in tasks) {
_currentSlowWarning = subValidator.validator.slowWarning;
try {
results.add(await subValidator.result);
} catch (exception, stackTrace) {
results.add(ValidationResult.crash(exception, stackTrace));
}
}
_currentSlowWarning = 'Merging results...';
return _mergeValidationResults(results);
}
ValidationResult _mergeValidationResults(List<ValidationResult> results) {
assert(results.isNotEmpty, 'Validation results should not be empty');
_subResults = results;
ValidationType mergedType = results[0].type;
final List<ValidationMessage> mergedMessages = <ValidationMessage>[];
String statusInfo;
for (ValidationResult result in results) {
statusInfo ??= result.statusInfo;
switch (result.type) {
case ValidationType.installed:
if (mergedType == ValidationType.missing) {
mergedType = ValidationType.partial;
}
break;
case ValidationType.notAvailable:
case ValidationType.partial:
mergedType = ValidationType.partial;
break;
case ValidationType.crash:
case ValidationType.missing:
if (mergedType == ValidationType.installed) {
mergedType = ValidationType.partial;
}
break;
default:
throw 'Unrecognized validation type: ' + result.type.toString();
}
mergedMessages.addAll(result.messages);
}
return ValidationResult(mergedType, mergedMessages,
statusInfo: statusInfo);
}
}
class ValidationResult {
/// [ValidationResult.type] should only equal [ValidationResult.installed]
/// if no [messages] are hints or errors.
ValidationResult(this.type, this.messages, { this.statusInfo });
factory ValidationResult.crash(Object error, [StackTrace stackTrace]) {
return ValidationResult(ValidationType.crash, <ValidationMessage>[
ValidationMessage.error(
'Due to an error, the doctor check did not complete. '
'If the error message below is not helpful, '
'please let us know about this issue at https://github.com/flutter/flutter/issues.'),
ValidationMessage.error('$error'),
if (stackTrace != null)
// Stacktrace is informational. Printed in verbose mode only.
ValidationMessage('$stackTrace'),
], statusInfo: 'the doctor check crashed');
}
final ValidationType type;
// A short message about the status.
final String statusInfo;
final List<ValidationMessage> messages;
String get leadingBox {
assert(type != null);
switch (type) {
case ValidationType.crash:
return '[☠]';
case ValidationType.missing:
return '[✗]';
case ValidationType.installed:
return '[✓]';
case ValidationType.notAvailable:
case ValidationType.partial:
return '[!]';
}
return null;
}
String get coloredLeadingBox {
assert(type != null);
switch (type) {
case ValidationType.crash:
return terminal.color(leadingBox, TerminalColor.red);
case ValidationType.missing:
return terminal.color(leadingBox, TerminalColor.red);
case ValidationType.installed:
return terminal.color(leadingBox, TerminalColor.green);
case ValidationType.notAvailable:
case ValidationType.partial:
return terminal.color(leadingBox, TerminalColor.yellow);
}
return null;
}
/// The string representation of the type.
String get typeStr {
assert(type != null);
switch (type) {
case ValidationType.crash:
return 'crash';
case ValidationType.missing:
return 'missing';
case ValidationType.installed:
return 'installed';
case ValidationType.notAvailable:
return 'notAvailable';
case ValidationType.partial:
return 'partial';
}
return null;
}
}
class ValidationMessage {
ValidationMessage(this.message) : type = ValidationMessageType.information;
ValidationMessage.error(this.message) : type = ValidationMessageType.error;
ValidationMessage.hint(this.message) : type = ValidationMessageType.hint;
final ValidationMessageType type;
bool get isError => type == ValidationMessageType.error;
bool get isHint => type == ValidationMessageType.hint;
final String message;
String get indicator {
switch (type) {
case ValidationMessageType.error:
return '✗';
case ValidationMessageType.hint:
return '!';
case ValidationMessageType.information:
return '•';
}
return null;
}
String get coloredIndicator {
switch (type) {
case ValidationMessageType.error:
return terminal.color(indicator, TerminalColor.red);
case ValidationMessageType.hint:
return terminal.color(indicator, TerminalColor.yellow);
case ValidationMessageType.information:
return terminal.color(indicator, TerminalColor.green);
}
return null;
}
@override
String toString() => message;
@override
bool operator ==(Object other) {
if (other.runtimeType != runtimeType) {
return false;
}
return other is ValidationMessage
&& other.message == message
&& other.type == type;
}
@override
int get hashCode => type.hashCode ^ message.hashCode;
}
class FlutterValidator extends DoctorValidator {
FlutterValidator() : super('Flutter');
@override
Future<ValidationResult> validate() async {
final List<ValidationMessage> messages = <ValidationMessage>[];
ValidationType valid = ValidationType.installed;
String versionChannel;
String frameworkVersion;
try {
final FlutterVersion version = FlutterVersion.instance;
versionChannel = version.channel;
frameworkVersion = version.frameworkVersion;
messages.add(ValidationMessage(userMessages.flutterVersion(
frameworkVersion,
Cache.flutterRoot,
)));
messages.add(ValidationMessage(userMessages.flutterRevision(
version.frameworkRevisionShort,
version.frameworkAge,
version.frameworkDate,
)));
messages.add(ValidationMessage(userMessages.engineRevision(version.engineRevisionShort)));
messages.add(ValidationMessage(userMessages.dartRevision(version.dartSdkVersion)));
} on VersionCheckError catch (e) {
messages.add(ValidationMessage.error(e.message));
valid = ValidationType.partial;
}
final String genSnapshotPath =
artifacts.getArtifactPath(Artifact.genSnapshot);
// Check that the binaries we downloaded for this platform actually run on it.
if (!_genSnapshotRuns(genSnapshotPath)) {
final StringBuffer buf = StringBuffer();
buf.writeln(userMessages.flutterBinariesDoNotRun);
if (platform.isLinux) {
buf.writeln(userMessages.flutterBinariesLinuxRepairCommands);
}
messages.add(ValidationMessage.error(buf.toString()));
valid = ValidationType.partial;
}
return ValidationResult(valid, messages,
statusInfo: userMessages.flutterStatusInfo(versionChannel, frameworkVersion, os.name, platform.localeName),
);
}
}
bool _genSnapshotRuns(String genSnapshotPath) {
const int kExpectedExitCode = 255;
try {
return processUtils.runSync(<String>[genSnapshotPath]).exitCode == kExpectedExitCode;
} catch (error) {
return false;
}
}
class NoIdeValidator extends DoctorValidator {
NoIdeValidator() : super('Flutter IDE Support');
@override
Future<ValidationResult> validate() async {
return ValidationResult(ValidationType.missing, <ValidationMessage>[
ValidationMessage(userMessages.noIdeInstallationInfo),
], statusInfo: userMessages.noIdeStatusInfo);
}
}
abstract class IntelliJValidator extends DoctorValidator {
IntelliJValidator(String title, this.installPath) : super(title);
final String installPath;
String get version;
String get pluginsPath;
static final Map<String, String> _idToTitle = <String, String>{
'IntelliJIdea': 'IntelliJ IDEA Ultimate Edition',
'IdeaIC': 'IntelliJ IDEA Community Edition',
};
static final Version kMinIdeaVersion = Version(2017, 1, 0);
static Iterable<DoctorValidator> get installedValidators {
if (platform.isLinux || platform.isWindows) {
return IntelliJValidatorOnLinuxAndWindows.installed;
}
if (platform.isMacOS) {
return IntelliJValidatorOnMac.installed;
}
return <DoctorValidator>[];
}
@override
Future<ValidationResult> validate() async {
final List<ValidationMessage> messages = <ValidationMessage>[];
messages.add(ValidationMessage(userMessages.intellijLocation(installPath)));
final IntelliJPlugins plugins = IntelliJPlugins(pluginsPath);
plugins.validatePackage(messages, <String>['flutter-intellij', 'flutter-intellij.jar'],
'Flutter', minVersion: IntelliJPlugins.kMinFlutterPluginVersion);
plugins.validatePackage(messages, <String>['Dart'], 'Dart');
if (_hasIssues(messages)) {
messages.add(ValidationMessage(userMessages.intellijPluginInfo));
}
_validateIntelliJVersion(messages, kMinIdeaVersion);
return ValidationResult(
_hasIssues(messages) ? ValidationType.partial : ValidationType.installed,
messages,
statusInfo: userMessages.intellijStatusInfo(version));
}
bool _hasIssues(List<ValidationMessage> messages) {
return messages.any((ValidationMessage message) => message.isError);
}
void _validateIntelliJVersion(List<ValidationMessage> messages, Version minVersion) {
// Ignore unknown versions.
if (minVersion == Version.unknown) {
return;
}
final Version installedVersion = Version.parse(version);
if (installedVersion == null) {
return;
}
if (installedVersion < minVersion) {
messages.add(ValidationMessage.error(userMessages.intellijMinimumVersion(minVersion.toString())));
}
}
}
class IntelliJValidatorOnLinuxAndWindows extends IntelliJValidator {
IntelliJValidatorOnLinuxAndWindows(String title, this.version, String installPath, this.pluginsPath) : super(title, installPath);
@override
final String version;
@override
final String pluginsPath;
static Iterable<DoctorValidator> get installed {
final List<DoctorValidator> validators = <DoctorValidator>[];
if (homeDirPath == null) {
return validators;
}
void addValidator(String title, String version, String installPath, String pluginsPath) {
final IntelliJValidatorOnLinuxAndWindows validator =
IntelliJValidatorOnLinuxAndWindows(title, version, installPath, pluginsPath);
for (int index = 0; index < validators.length; ++index) {
final DoctorValidator other = validators[index];
if (other is IntelliJValidatorOnLinuxAndWindows && validator.installPath == other.installPath) {
if (validator.version.compareTo(other.version) > 0) {
validators[index] = validator;
}
return;
}
}
validators.add(validator);
}
for (FileSystemEntity dir in fs.directory(homeDirPath).listSync()) {
if (dir is Directory) {
final String name = fs.path.basename(dir.path);
IntelliJValidator._idToTitle.forEach((String id, String title) {
if (name.startsWith('.$id')) {
final String version = name.substring(id.length + 1);
String installPath;
try {
installPath = fs.file(fs.path.join(dir.path, 'system', '.home')).readAsStringSync();
} catch (e) {
// ignored
}
if (installPath != null && fs.isDirectorySync(installPath)) {
final String pluginsPath = fs.path.join(dir.path, 'config', 'plugins');
addValidator(title, version, installPath, pluginsPath);
}
}
});
}
}
return validators;
}
}
class IntelliJValidatorOnMac extends IntelliJValidator {
IntelliJValidatorOnMac(String title, this.id, String installPath) : super(title, installPath);
final String id;
static final Map<String, String> _dirNameToId = <String, String>{
'IntelliJ IDEA.app': 'IntelliJIdea',
'IntelliJ IDEA Ultimate.app': 'IntelliJIdea',
'IntelliJ IDEA CE.app': 'IdeaIC',
};
static Iterable<DoctorValidator> get installed {
final List<DoctorValidator> validators = <DoctorValidator>[];
final List<String> installPaths = <String>['/Applications', fs.path.join(homeDirPath, 'Applications')];
void checkForIntelliJ(Directory dir) {
final String name = fs.path.basename(dir.path);
_dirNameToId.forEach((String dirName, String id) {
if (name == dirName) {
final String title = IntelliJValidator._idToTitle[id];
validators.add(IntelliJValidatorOnMac(title, id, dir.path));
}
});
}
try {
final Iterable<Directory> installDirs = installPaths
.map<Directory>((String installPath) => fs.directory(installPath))
.map<List<FileSystemEntity>>((Directory dir) => dir.existsSync() ? dir.listSync() : <FileSystemEntity>[])
.expand<FileSystemEntity>((List<FileSystemEntity> mappedDirs) => mappedDirs)
.whereType<Directory>();
for (Directory dir in installDirs) {
checkForIntelliJ(dir);
if (!dir.path.endsWith('.app')) {
for (FileSystemEntity subdir in dir.listSync()) {
if (subdir is Directory) {
checkForIntelliJ(subdir);
}
}
}
}
} on FileSystemException catch (e) {
validators.add(ValidatorWithResult(
userMessages.intellijMacUnknownResult,
ValidationResult(ValidationType.missing, <ValidationMessage>[
ValidationMessage.error(e.message),
]),
));
}
return validators;
}
@override
String get version {
if (_version == null) {
final String plistFile = fs.path.join(installPath, 'Contents', 'Info.plist');
_version = PlistParser.instance.getValueFromFile(
plistFile,
PlistParser.kCFBundleShortVersionStringKey,
) ?? 'unknown';
}
return _version;
}
String _version;
@override
String get pluginsPath {
final List<String> split = version.split('.');
final String major = split[0];
final String minor = split[1];
return fs.path.join(homeDirPath, 'Library', 'Application Support', '$id$major.$minor');
}
}
class DeviceValidator extends DoctorValidator {
DeviceValidator() : super('Connected device');
@override
String get slowWarning => 'Scanning for devices is taking a long time...';
@override
Future<ValidationResult> validate() async {
final List<Device> devices = await deviceManager.getAllConnectedDevices().toList();
List<ValidationMessage> messages;
if (devices.isEmpty) {
final List<String> diagnostics = await deviceManager.getDeviceDiagnostics();
if (diagnostics.isNotEmpty) {
messages = diagnostics.map<ValidationMessage>((String message) => ValidationMessage(message)).toList();
} else {
messages = <ValidationMessage>[ValidationMessage.hint(userMessages.devicesMissing)];
}
} else {
messages = await Device.descriptions(devices)
.map<ValidationMessage>((String msg) => ValidationMessage(msg)).toList();
}
if (devices.isEmpty) {
return ValidationResult(ValidationType.notAvailable, messages);
} else {
return ValidationResult(ValidationType.installed, messages, statusInfo: userMessages.devicesAvailable(devices.length));
}
}
}
class ValidatorWithResult extends DoctorValidator {
ValidatorWithResult(String title, this.result) : super(title);
final ValidationResult result;
@override
Future<ValidationResult> validate() async => result;
}