| // Copyright (c) 2016, 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. |
| |
| import 'dart:io'; |
| |
| import 'package:boolean_selector/boolean_selector.dart'; |
| import 'package:collection/collection.dart'; |
| import 'package:glob/glob.dart'; |
| import 'package:path/path.dart' as p; |
| import 'package:source_span/source_span.dart'; |
| import 'package:yaml/yaml.dart'; |
| |
| import '../../backend/operating_system.dart'; |
| import '../../backend/platform_selector.dart'; |
| import '../../frontend/timeout.dart'; |
| import '../../util/io.dart'; |
| import '../../utils.dart'; |
| import '../configuration.dart'; |
| import '../configuration/suite.dart'; |
| import 'custom_runtime.dart'; |
| import 'load.dart' as self; |
| import 'reporters.dart'; |
| import 'runtime_selection.dart'; |
| import 'runtime_settings.dart'; |
| |
| /// A regular expression matching a Dart identifier. |
| /// |
| /// This also matches a package name, since they must be Dart identifiers. |
| final _identifierRegExp = new RegExp(r"[a-zA-Z_]\w*"); |
| |
| /// A regular expression matching allowed package names. |
| /// |
| /// This allows dot-separated valid Dart identifiers. The dots are there for |
| /// compatibility with Google's internal Dart packages, but they may not be used |
| /// when publishing a package to pub.dartlang.org. |
| final _packageName = new RegExp( |
| "^${_identifierRegExp.pattern}(\\.${_identifierRegExp.pattern})*\$"); |
| |
| /// Loads configuration information from a YAML file at [path]. |
| /// |
| /// If [global] is `true`, this restricts the configuration file to only rules |
| /// that are supported globally. |
| /// |
| /// Throws a [FormatException] if the configuration is invalid, and a |
| /// [FileSystemException] if it can't be read. |
| Configuration load(String path, {bool global: false}) { |
| var source = new File(path).readAsStringSync(); |
| var document = loadYamlNode(source, sourceUrl: p.toUri(path)); |
| |
| if (document.value == null) return Configuration.empty; |
| |
| if (document is! Map) { |
| throw new SourceSpanFormatException( |
| "The configuration must be a YAML map.", document.span, source); |
| } |
| |
| var loader = new _ConfigurationLoader(document, source, global: global); |
| return loader.load(); |
| } |
| |
| /// A helper for [load] that tracks the YAML document. |
| class _ConfigurationLoader { |
| /// The parsed configuration document. |
| final YamlMap _document; |
| |
| /// The source string for [_document]. |
| /// |
| /// Used for error reporting. |
| final String _source; |
| |
| /// Whether this is parsing the global configuration file. |
| final bool _global; |
| |
| /// Whether runner configuration is allowed at this level. |
| final bool _runnerConfig; |
| |
| _ConfigurationLoader(this._document, this._source, |
| {bool global: false, bool runnerConfig: true}) |
| : _global = global, |
| _runnerConfig = runnerConfig; |
| |
| /// Loads the configuration in [_document]. |
| Configuration load() => _loadIncludeConfig() |
| .merge(_loadGlobalTestConfig()) |
| .merge(_loadLocalTestConfig()) |
| .merge(_loadGlobalRunnerConfig()) |
| .merge(_loadLocalRunnerConfig()); |
| |
| /// If an `include` node is contained in [node], merges and returns [config]. |
| Configuration _loadIncludeConfig() { |
| if (!_runnerConfig) { |
| _disallow("include"); |
| return Configuration.empty; |
| } |
| |
| var includeNode = _document.nodes["include"]; |
| if (includeNode == null) return Configuration.empty; |
| |
| var includePath = _parseNode(includeNode, "include path", p.fromUri); |
| var basePath = |
| p.join(p.dirname(p.fromUri(_document.span.sourceUrl)), includePath); |
| try { |
| return self.load(basePath); |
| } on FileSystemException catch (error) { |
| throw new SourceSpanFormatException( |
| getErrorMessage(error), includeNode.span, _source); |
| } |
| } |
| |
| /// Loads test configuration that's allowed in the global configuration file. |
| Configuration _loadGlobalTestConfig() { |
| var verboseTrace = _getBool("verbose_trace"); |
| var chainStackTraces = _getBool("chain_stack_traces"); |
| var foldStackFrames = _loadFoldedStackFrames(); |
| var jsTrace = _getBool("js_trace"); |
| |
| var timeout = _parseValue("timeout", (value) => new Timeout.parse(value)); |
| |
| var onPlatform = _getMap("on_platform", |
| key: (keyNode) => _parseNode(keyNode, "on_platform key", |
| (value) => new PlatformSelector.parse(value, keyNode.span)), |
| value: (valueNode) => |
| _nestedConfig(valueNode, "on_platform value", runnerConfig: false)); |
| |
| var onOS = _getMap("on_os", |
| key: (keyNode) { |
| _validate(keyNode, "on_os key must be a string.", |
| (value) => value is String); |
| |
| var os = OperatingSystem.find(keyNode.value); |
| if (os != null) return os; |
| |
| throw new SourceSpanFormatException( |
| 'Invalid on_os key: No such operating system.', |
| keyNode.span, |
| _source); |
| }, |
| value: (valueNode) => _nestedConfig(valueNode, "on_os value")); |
| |
| var presets = _getMap("presets", |
| key: (keyNode) => _parseIdentifierLike(keyNode, "presets key"), |
| value: (valueNode) => _nestedConfig(valueNode, "presets value")); |
| |
| var config = new Configuration( |
| verboseTrace: verboseTrace, |
| jsTrace: jsTrace, |
| timeout: timeout, |
| presets: presets, |
| chainStackTraces: chainStackTraces, |
| foldTraceExcept: foldStackFrames["except"], |
| foldTraceOnly: foldStackFrames["only"]) |
| .merge(_extractPresets<PlatformSelector>( |
| onPlatform, (map) => new Configuration(onPlatform: map))); |
| |
| var osConfig = onOS[currentOS]; |
| return osConfig == null ? config : config.merge(osConfig); |
| } |
| |
| /// Loads test configuration that's not allowed in the global configuration |
| /// file. |
| /// |
| /// If [_global] is `true`, this will error if there are any local test-level |
| /// configuration fields. |
| Configuration _loadLocalTestConfig() { |
| if (_global) { |
| _disallow("skip"); |
| _disallow("retry"); |
| _disallow("test_on"); |
| _disallow("add_tags"); |
| _disallow("tags"); |
| return Configuration.empty; |
| } |
| |
| var skip = _getValue("skip", "boolean or string", |
| (value) => value is bool || value is String); |
| var skipReason; |
| if (skip is String) { |
| skipReason = skip; |
| skip = true; |
| } |
| |
| var testOn = _parsePlatformSelector("test_on"); |
| |
| var addTags = _getList( |
| "add_tags", (tagNode) => _parseIdentifierLike(tagNode, "Tag name")); |
| |
| var tags = _getMap("tags", |
| key: (keyNode) => _parseNode( |
| keyNode, "tags key", (value) => new BooleanSelector.parse(value)), |
| value: (valueNode) => |
| _nestedConfig(valueNode, "tag value", runnerConfig: false)); |
| |
| var retry = _getNonNegativeInt("retry"); |
| |
| return new Configuration( |
| skip: skip, |
| retry: retry, |
| skipReason: skipReason, |
| testOn: testOn, |
| addTags: addTags) |
| .merge(_extractPresets<BooleanSelector>( |
| tags, (map) => new Configuration(tags: map))); |
| } |
| |
| /// Loads runner configuration that's allowed in the global configuration |
| /// file. |
| /// |
| /// If [_runnerConfig] is `false`, this will error if there are any |
| /// runner-level configuration fields. |
| Configuration _loadGlobalRunnerConfig() { |
| if (!_runnerConfig) { |
| _disallow("pause_after_load"); |
| _disallow("reporter"); |
| _disallow("concurrency"); |
| _disallow("names"); |
| _disallow("plain_names"); |
| _disallow("platforms"); |
| _disallow("add_presets"); |
| _disallow("override_platforms"); |
| _disallow("include"); |
| return Configuration.empty; |
| } |
| |
| var pauseAfterLoad = _getBool("pause_after_load"); |
| var runSkipped = _getBool("run_skipped"); |
| |
| var reporter = _getString("reporter"); |
| if (reporter != null && !allReporters.keys.contains(reporter)) { |
| _error('Unknown reporter "$reporter".', "reporter"); |
| } |
| |
| var concurrency = _getInt("concurrency"); |
| |
| // The UI term "platform" corresponds with the implementation term |
| // "runtime". The [Runtime] class used to be called [TestPlatform], but it |
| // was changed to avoid conflicting with [SuitePlatform]. We decided not to |
| // also change the UI to avoid a painful migration. |
| var runtimes = _getList( |
| "platforms", |
| (runtimeNode) => new RuntimeSelection( |
| _parseIdentifierLike(runtimeNode, "Platform name"), |
| runtimeNode.span)); |
| |
| var chosenPresets = _getList("add_presets", |
| (presetNode) => _parseIdentifierLike(presetNode, "Preset name")); |
| |
| var overrideRuntimes = _loadOverrideRuntimes(); |
| |
| return new Configuration( |
| pauseAfterLoad: pauseAfterLoad, |
| runSkipped: runSkipped, |
| reporter: reporter, |
| concurrency: concurrency, |
| runtimes: runtimes, |
| chosenPresets: chosenPresets, |
| overrideRuntimes: overrideRuntimes); |
| } |
| |
| /// Loads the `override_platforms` field. |
| Map<String, RuntimeSettings> _loadOverrideRuntimes() { |
| var runtimesNode = |
| _getNode("override_platforms", "map", (value) => value is Map) |
| as YamlMap; |
| if (runtimesNode == null) return const {}; |
| |
| var runtimes = <String, RuntimeSettings>{}; |
| runtimesNode.nodes.forEach((identifierNode, valueNode) { |
| var identifier = |
| _parseIdentifierLike(identifierNode, "Platform identifier"); |
| |
| _validate(valueNode, "Platform definition must be a map.", |
| (value) => value is Map); |
| var map = valueNode as YamlMap; |
| |
| var settings = _expect(map, "settings"); |
| _validate(settings, "Must be a map.", (value) => value is Map); |
| |
| runtimes[identifier] = new RuntimeSettings( |
| identifier, identifierNode.span, [settings as YamlMap]); |
| }); |
| return runtimes; |
| } |
| |
| /// Loads runner configuration that's not allowed in the global configuration |
| /// file. |
| /// |
| /// If [_runnerConfig] is `false` or if [_global] is `true`, this will error |
| /// if there are any local test-level configuration fields. |
| Configuration _loadLocalRunnerConfig() { |
| if (!_runnerConfig || _global) { |
| _disallow("pub_serve"); |
| _disallow("names"); |
| _disallow("plain_names"); |
| _disallow("paths"); |
| _disallow("filename"); |
| _disallow("include_tags"); |
| _disallow("exclude_tags"); |
| _disallow("define_platforms"); |
| return Configuration.empty; |
| } |
| |
| var pubServePort = _getInt("pub_serve"); |
| |
| var patterns = _getList("names", (nameNode) { |
| _validate(nameNode, "Names must be strings.", (value) => value is String); |
| return _parseNode(nameNode, "name", (value) => new RegExp(value)); |
| }) |
| ..addAll(_getList("plain_names", (nameNode) { |
| _validate( |
| nameNode, "Names must be strings.", (value) => value is String); |
| return nameNode.value; |
| })); |
| |
| var paths = _getList("paths", (pathNode) { |
| _validate(pathNode, "Paths must be strings.", (value) => value is String); |
| _validate(pathNode, "Paths must be relative.", |
| (value) => p.url.isRelative(value)); |
| |
| return _parseNode(pathNode, "path", p.fromUri); |
| }); |
| |
| var filename = _parseValue("filename", (value) => new Glob(value)); |
| |
| var includeTags = _parseBooleanSelector("include_tags"); |
| var excludeTags = _parseBooleanSelector("exclude_tags"); |
| |
| var defineRuntimes = _loadDefineRuntimes(); |
| |
| return new Configuration( |
| pubServePort: pubServePort, |
| patterns: patterns, |
| paths: paths, |
| filename: filename, |
| includeTags: includeTags, |
| excludeTags: excludeTags, |
| defineRuntimes: defineRuntimes); |
| } |
| |
| /// Returns a map representation of the `fold_stack_frames` configuration. |
| /// |
| /// The key `except` will correspond to the list of packages to fold. |
| /// The key `only` will correspond to the list of packages to keep in a |
| /// test [Chain]. |
| Map<String, List<String>> _loadFoldedStackFrames() { |
| var foldOptionSet = false; |
| return _getMap("fold_stack_frames", key: (keyNode) { |
| _validate(keyNode, "Must be a string", (value) => value is String); |
| _validate(keyNode, 'Must be "only" or "except".', |
| (value) => value == "only" || value == "except"); |
| |
| if (foldOptionSet) { |
| throw new SourceSpanFormatException( |
| 'Can only contain one of "only" or "except".', |
| keyNode.span, |
| _source); |
| } |
| foldOptionSet = true; |
| return keyNode.value; |
| }, value: (valueNode) { |
| _validate( |
| valueNode, |
| "Folded packages must be strings.", |
| (valueList) => |
| valueList is YamlList && |
| valueList.every((value) => value is String)); |
| |
| _validate( |
| valueNode, |
| "Invalid package name.", |
| (valueList) => |
| valueList.every((value) => _packageName.hasMatch(value))); |
| |
| return new List<String>.from(valueNode.value); |
| }); |
| } |
| |
| /// Loads the `define_platforms` field. |
| Map<String, CustomRuntime> _loadDefineRuntimes() { |
| var runtimesNode = |
| _getNode("define_platforms", "map", (value) => value is Map) as YamlMap; |
| if (runtimesNode == null) return const {}; |
| |
| var runtimes = <String, CustomRuntime>{}; |
| runtimesNode.nodes.forEach((identifierNode, valueNode) { |
| var identifier = |
| _parseIdentifierLike(identifierNode, "Platform identifier"); |
| |
| _validate(valueNode, "Platform definition must be a map.", |
| (value) => value is Map); |
| var map = valueNode as YamlMap; |
| |
| var nameNode = _expect(map, "name"); |
| _validate(nameNode, "Must be a string.", (value) => value is String); |
| var name = nameNode.value as String; |
| |
| var parentNode = _expect(map, "extends"); |
| var parent = _parseIdentifierLike(parentNode, "Platform parent"); |
| |
| var settings = _expect(map, "settings"); |
| _validate(settings, "Must be a map.", (value) => value is Map); |
| |
| runtimes[identifier] = new CustomRuntime(name, nameNode.span, identifier, |
| identifierNode.span, parent, parentNode.span, settings as YamlMap); |
| }); |
| return runtimes; |
| } |
| |
| /// Throws an exception with [message] if [test] returns `false` when passed |
| /// [node]'s value. |
| void _validate(YamlNode node, String message, bool test(value)) { |
| if (test(node.value)) return; |
| throw new SourceSpanFormatException(message, node.span, _source); |
| } |
| |
| /// Returns the value of the node at [field]. |
| /// |
| /// If [typeTest] returns `false` for that value, instead throws an error |
| /// complaining that the field is not a [typeName]. |
| _getValue(String field, String typeName, bool typeTest(value)) { |
| var value = _document[field]; |
| if (value == null || typeTest(value)) return value; |
| _error("$field must be ${a(typeName)}.", field); |
| } |
| |
| /// Returns the YAML node at [field]. |
| /// |
| /// If [typeTest] returns `false` for that node's value, instead throws an |
| /// error complaining that the field is not a [typeName]. |
| YamlNode _getNode(String field, String typeName, bool typeTest(value)) { |
| var node = _document.nodes[field]; |
| if (node == null) return null; |
| _validate(node, "$field must be ${a(typeName)}.", typeTest); |
| return node; |
| } |
| |
| /// Asserts that [field] is an int and returns its value. |
| int _getInt(String field) => _getValue(field, "int", (value) => value is int); |
| |
| /// Asserts that [field] is a non-negative int and returns its value. |
| int _getNonNegativeInt(String field) => _getValue( |
| field, "non-negative int", (value) => value is int && value >= 0); |
| |
| /// Asserts that [field] is a boolean and returns its value. |
| bool _getBool(String field) => |
| _getValue(field, "boolean", (value) => value is bool); |
| |
| /// Asserts that [field] is a string and returns its value. |
| String _getString(String field) => |
| _getValue(field, "string", (value) => value is String); |
| |
| /// Asserts that [field] is a list and runs [forElement] for each element it |
| /// contains. |
| /// |
| /// Returns a list of values returned by [forElement]. |
| List<T> _getList<T>(String field, T forElement(YamlNode elementNode)) { |
| var node = _getNode(field, "list", (value) => value is List) as YamlList; |
| if (node == null) return []; |
| return node.nodes.map(forElement).toList(); |
| } |
| |
| /// Asserts that [field] is a map and runs [key] and [value] for each pair. |
| /// |
| /// Returns a map with the keys and values returned by [key] and [value]. Each |
| /// of these defaults to asserting that the value is a string. |
| Map<K, V> _getMap<K, V>(String field, |
| {K key(YamlNode keyNode), V value(YamlNode valueNode)}) { |
| var node = _getNode(field, "map", (value) => value is Map) as YamlMap; |
| if (node == null) return {}; |
| |
| key ??= (keyNode) { |
| _validate( |
| keyNode, "$field keys must be strings.", (value) => value is String); |
| |
| return keyNode.value as K; |
| }; |
| |
| value ??= (valueNode) { |
| _validate(valueNode, "$field values must be strings.", |
| (value) => value is String); |
| |
| return valueNode.value as V; |
| }; |
| |
| return mapMap(node.nodes, |
| key: (keyNode, _) => key(keyNode), |
| value: (_, valueNode) => value(valueNode)); |
| } |
| |
| /// Verifies that [node]'s value is an optionally hyphenated Dart identifier, |
| /// and returns it |
| String _parseIdentifierLike(YamlNode node, String name) { |
| _validate(node, "$name must be a string.", (value) => value is String); |
| _validate(node, "$name must be an (optionally hyphenated) Dart identifier.", |
| (value) => value.contains(anchoredHyphenatedIdentifier)); |
| return node.value; |
| } |
| |
| /// Parses [node]'s value as a boolean selector. |
| BooleanSelector _parseBooleanSelector(String name) => |
| _parseValue(name, (value) => new BooleanSelector.parse(value)); |
| |
| /// Parses [node]'s value as a platform selector. |
| PlatformSelector _parsePlatformSelector(String field) { |
| var node = _document.nodes[field]; |
| if (node == null) return null; |
| return _parseNode( |
| node, field, (value) => new PlatformSelector.parse(value, node.span)); |
| } |
| |
| /// Asserts that [node] is a string, passes its value to [parse], and returns |
| /// the result. |
| /// |
| /// If [parse] throws a [FormatException], it's wrapped to include [node]'s |
| /// span. |
| T _parseNode<T>(YamlNode node, String name, T parse(String value)) { |
| _validate(node, "$name must be a string.", (value) => value is String); |
| |
| try { |
| return parse(node.value); |
| } on FormatException catch (error) { |
| throw new SourceSpanFormatException( |
| 'Invalid $name: ${error.message}', node.span, _source); |
| } |
| } |
| |
| /// Asserts that [field] is a string, passes it to [parse], and returns the |
| /// result. |
| /// |
| /// If [parse] throws a [FormatException], it's wrapped to include [field]'s |
| /// span. |
| T _parseValue<T>(String field, T parse(String value)) { |
| var node = _document.nodes[field]; |
| if (node == null) return null; |
| return _parseNode(node, field, parse); |
| } |
| |
| /// Parses a nested configuration document. |
| /// |
| /// [name] is the name of the field, which is used for error-handling. |
| /// [runnerConfig] controls whether runner configuration is allowed in the |
| /// nested configuration. It defaults to [_runnerConfig]. |
| Configuration _nestedConfig(YamlNode node, String name, {bool runnerConfig}) { |
| if (node == null || node.value == null) return Configuration.empty; |
| |
| _validate(node, "$name must be a map.", (value) => value is Map); |
| var loader = new _ConfigurationLoader(node, _source, |
| global: _global, runnerConfig: runnerConfig ?? _runnerConfig); |
| return loader.load(); |
| } |
| |
| /// Takes a map that contains [Configuration]s and extracts any |
| /// preset-specific configuration into a parent [Configuration]. |
| /// |
| /// This is needed because parameters to [new Configuration] such as |
| /// `onPlatform` take maps to [SuiteConfiguration]s. [SuiteConfiguration] |
| /// doesn't support preset-specific configuration, so this extracts the preset |
| /// logic into a parent [Configuration], leaving only maps to |
| /// [SuiteConfiguration]s. The [create] function is used to construct |
| /// [Configuration]s from the resolved maps. |
| Configuration _extractPresets<T>(Map<T, Configuration> map, |
| Configuration create(Map<T, SuiteConfiguration> map)) { |
| if (map.isEmpty) return Configuration.empty; |
| |
| var base = <T, SuiteConfiguration>{}; |
| var presets = <String, Map<T, SuiteConfiguration>>{}; |
| map.forEach((key, config) { |
| base[key] = config.suiteDefaults; |
| config.presets.forEach((preset, presetConfig) { |
| presets.putIfAbsent(preset, () => {})[key] = presetConfig.suiteDefaults; |
| }); |
| }); |
| |
| if (presets.isEmpty) { |
| return base.isEmpty ? Configuration.empty : create(base); |
| } else { |
| var newPresets = |
| mapMap<String, Map<T, SuiteConfiguration>, String, Configuration>( |
| presets, |
| value: (_, map) => create(map)); |
| return create(base).change(presets: newPresets); |
| } |
| } |
| |
| /// Asserts that [map] has a field named [field] and returns it. |
| YamlNode _expect(YamlMap map, String field) { |
| var node = map.nodes[field]; |
| if (node != null) return node; |
| |
| throw new SourceSpanFormatException( |
| 'Missing required field "$field".', map.span, _source); |
| } |
| |
| /// Throws an error if a field named [field] exists at this level. |
| void _disallow(String field) { |
| if (!_document.containsKey(field)) return; |
| |
| throw new SourceSpanFormatException( |
| "$field isn't supported here.", |
| // We need the key as a [YamlNode] to get its span. |
| _document.nodes.keys.firstWhere((key) => key.value == field).span, |
| _source); |
| } |
| |
| /// Throws a [SourceSpanFormatException] with [message] about [field]. |
| void _error(String message, String field) { |
| throw new SourceSpanFormatException( |
| message, _document.nodes[field].span, _source); |
| } |
| } |