| // Copyright (c) 2012, 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:async'; |
| import 'dart:convert'; |
| import 'dart:io'; |
| |
| import 'package:collection/collection.dart'; |
| import 'package:package_config/packages_file.dart' as packages_file; |
| import 'package:path/path.dart' as p; |
| import 'package:pub/src/package_config.dart'; |
| import 'package:pub_semver/pub_semver.dart'; |
| |
| import 'dart.dart' as dart; |
| import 'exceptions.dart'; |
| import 'http.dart' as http; |
| import 'io.dart'; |
| import 'lock_file.dart'; |
| import 'log.dart' as log; |
| import 'package.dart'; |
| import 'package_config.dart' show PackageConfig; |
| import 'package_graph.dart'; |
| import 'package_name.dart'; |
| import 'pubspec.dart'; |
| import 'sdk.dart'; |
| import 'solver.dart'; |
| import 'source/cached.dart'; |
| import 'source/unknown.dart'; |
| import 'system_cache.dart'; |
| import 'utils.dart'; |
| |
| /// A RegExp to match SDK constraints in a lockfile. |
| final _sdkConstraint = () { |
| // This matches both the old-style constraint: |
| // |
| // ```yaml |
| // sdk: ">=1.2.3 <2.0.0" |
| // ``` |
| // |
| // and the new-style constraint: |
| // |
| // ```yaml |
| // sdks: |
| // dart: ">=1.2.3 <2.0.0" |
| // ``` |
| var sdkNames = sdks.keys.map((name) => ' ' + name).join('|'); |
| return RegExp(r'^(' + sdkNames + r'|sdk): "?([^"]*)"?$', multiLine: true); |
| }(); |
| |
| /// The context surrounding the root package pub is operating on. |
| /// |
| /// Pub operates over a directed graph of dependencies that starts at a root |
| /// "entrypoint" package. This is typically the package where the current |
| /// working directory is located. An entrypoint knows the [root] package it is |
| /// associated with and is responsible for managing the "packages" directory |
| /// for it. |
| /// |
| /// That directory contains symlinks to all packages used by an app. These links |
| /// point either to the [SystemCache] or to some other location on the local |
| /// filesystem. |
| /// |
| /// While entrypoints are typically applications, a pure library package may end |
| /// up being used as an entrypoint. Also, a single package may be used as an |
| /// entrypoint in one context but not in another. For example, a package that |
| /// contains a reusable library may not be the entrypoint when used by an app, |
| /// but may be the entrypoint when you're running its tests. |
| class Entrypoint { |
| /// The root package this entrypoint is associated with. |
| final Package root; |
| |
| /// The system-wide cache which caches packages that need to be fetched over |
| /// the network. |
| final SystemCache cache; |
| |
| /// Whether this entrypoint is in memory only, as opposed to representing a |
| /// real directory on disk. |
| final bool _inMemory; |
| |
| /// Whether this entrypoint exists within the package cache. |
| bool get isCached => root.dir != null && p.isWithin(cache.rootDir, root.dir); |
| |
| /// Whether this is an entrypoint for a globally-activated package. |
| final bool isGlobal; |
| |
| /// The lockfile for the entrypoint. |
| /// |
| /// If not provided to the entrypoint, it will be loaded lazily from disk. |
| LockFile get lockFile { |
| if (_lockFile != null) return _lockFile; |
| |
| if (!fileExists(lockFilePath)) { |
| _lockFile = LockFile.empty(); |
| } else { |
| _lockFile = LockFile.load(lockFilePath, cache.sources); |
| } |
| |
| return _lockFile; |
| } |
| |
| LockFile _lockFile; |
| |
| /// The package graph for the application and all of its transitive |
| /// dependencies. |
| /// |
| /// Throws a [DataError] if the `.packages` file isn't up-to-date relative to |
| /// the pubspec and the lockfile. |
| PackageGraph get packageGraph { |
| if (_packageGraph != null) return _packageGraph; |
| |
| assertUpToDate(); |
| var packages = { |
| for (var id in lockFile.packages.values) id.name: cache.load(id) |
| }; |
| packages[root.name] = root; |
| |
| _packageGraph = PackageGraph(this, lockFile, packages); |
| return _packageGraph; |
| } |
| |
| PackageGraph _packageGraph; |
| |
| /// The path to the entrypoint's "packages" directory. |
| String get packagesPath => root.path('packages'); |
| |
| /// The path to the entrypoint's ".packages" file. |
| String get packagesFile => root.path('.packages'); |
| |
| /// The path to the entrypoint's ".dart_tool/package_config.json" file. |
| String get packageConfigFile => |
| root.path('.dart_tool', 'package_config.json'); |
| |
| /// The path to the entrypoint package's pubspec. |
| String get pubspecPath => root.path('pubspec.yaml'); |
| |
| /// The path to the entrypoint package's lockfile. |
| String get lockFilePath => root.path('pubspec.lock'); |
| |
| /// The path to the entrypoint package's `.dart_tool/pub` cache directory. |
| /// |
| /// If the old-style `.pub` directory is being used, this returns that |
| /// instead. |
| String get cachePath { |
| var newPath = root.path('.dart_tool/pub'); |
| var oldPath = root.path('.pub'); |
| if (!dirExists(newPath) && dirExists(oldPath)) return oldPath; |
| return newPath; |
| } |
| |
| /// The path to the directory containing dependency executable snapshots. |
| String get _snapshotPath => p.join(cachePath, 'bin'); |
| |
| /// Loads the entrypoint for the package at the current directory. |
| Entrypoint.current(this.cache) |
| : root = Package.load(null, '.', cache.sources, isRootPackage: true), |
| _inMemory = false, |
| isGlobal = false; |
| |
| /// Loads the entrypoint from a package at [rootDir]. |
| Entrypoint(String rootDir, this.cache) |
| : root = Package.load(null, rootDir, cache.sources, isRootPackage: true), |
| _inMemory = false, |
| isGlobal = true; |
| |
| /// Creates an entrypoint given package and lockfile objects. |
| Entrypoint.inMemory(this.root, this._lockFile, this.cache) |
| : _inMemory = true, |
| isGlobal = true; |
| |
| /// Creates an entrypoint given a package and a [solveResult], from which the |
| /// package graph and lockfile will be computed. |
| Entrypoint.fromSolveResult(this.root, this.cache, SolveResult solveResult) |
| : _inMemory = true, |
| isGlobal = true { |
| _packageGraph = PackageGraph.fromSolveResult(this, solveResult); |
| _lockFile = _packageGraph.lockFile; |
| } |
| |
| /// Writes .packages and .dart_tool/package_config.json |
| Future<void> writePackagesFiles() async { |
| writeTextFile(packagesFile, lockFile.packagesFile(cache, root.name)); |
| ensureDir(p.dirname(packageConfigFile)); |
| writeTextFile( |
| packageConfigFile, |
| await lockFile.packageConfigFile( |
| cache, |
| entrypoint: root.name, |
| entrypointSdkConstraint: root.pubspec.sdkConstraints[sdk.identifier], |
| )); |
| } |
| |
| /// Gets all dependencies of the [root] package. |
| /// |
| /// Performs version resolution according to [SolveType]. |
| /// |
| /// [useLatest], if provided, defines a list of packages that will be |
| /// unlocked and forced to their latest versions. If [upgradeAll] is |
| /// true, the previous lockfile is ignored and all packages are re-resolved |
| /// from scratch. Otherwise, it will attempt to preserve the versions of all |
| /// previously locked packages. |
| /// |
| /// Shows a report of the changes made relative to the previous lockfile. If |
| /// this is an upgrade or downgrade, all transitive dependencies are shown in |
| /// the report. Otherwise, only dependencies that were changed are shown. If |
| /// [dryRun] is `true`, no physical changes are made. |
| /// |
| /// If [precompile] is `true` (the default), this snapshots dependencies' |
| /// executables. |
| /// |
| /// Updates [lockFile] and [packageRoot] accordingly. |
| Future acquireDependencies(SolveType type, |
| {List<String> useLatest, |
| bool dryRun = false, |
| bool precompile = false}) async { |
| var result = await resolveVersions(type, cache, root, |
| lockFile: lockFile, useLatest: useLatest); |
| |
| // Log once about all overridden packages. |
| if (warnAboutPreReleaseSdkOverrides && result.pubspecs != null) { |
| var overriddenPackages = (result.pubspecs.values |
| .where((pubspec) => pubspec.dartSdkWasOverridden) |
| .map((pubspec) => pubspec.name) |
| .toList() |
| ..sort()) |
| .join(', '); |
| if (overriddenPackages.isNotEmpty) { |
| log.message(log.yellow( |
| 'Overriding the upper bound Dart SDK constraint to <=${sdk.version} ' |
| 'for the following packages:\n\n$overriddenPackages\n\n' |
| 'To disable this you can set the PUB_ALLOW_PRERELEASE_SDK system ' |
| 'environment variable to `false`, or you can silence this message ' |
| 'by setting it to `quiet`.')); |
| } |
| } |
| |
| result.showReport(type); |
| |
| if (dryRun) { |
| result.summarizeChanges(type, dryRun: dryRun); |
| return; |
| } |
| |
| await Future.wait(result.packages.map(_get)); |
| _saveLockFile(result); |
| |
| result.summarizeChanges(type, dryRun: dryRun); |
| |
| /// Build a package graph from the version solver results so we don't |
| /// have to reload and reparse all the pubspecs. |
| _packageGraph = PackageGraph.fromSolveResult(this, result); |
| |
| await writePackagesFiles(); |
| |
| try { |
| if (precompile) { |
| await precompileExecutables(changed: result.changedPackages); |
| } else { |
| _deleteExecutableSnapshots(changed: result.changedPackages); |
| } |
| } catch (error, stackTrace) { |
| // Just log exceptions here. Since the method is just about acquiring |
| // dependencies, it shouldn't fail unless that fails. |
| log.exception(error, stackTrace); |
| } |
| } |
| |
| /// Precompiles all executables from dependencies that don't transitively |
| /// depend on [this] or on a path dependency. |
| Future precompileExecutables({Iterable<String> changed}) async { |
| migrateCache(); |
| _deleteExecutableSnapshots(changed: changed); |
| |
| var executables = mapMap<String, PackageRange, String, List<String>>( |
| root.immediateDependencies, |
| value: (name, _) => _executablesForPackage(name)); |
| |
| for (var package in executables.keys.toList()) { |
| if (executables[package].isEmpty) executables.remove(package); |
| } |
| |
| if (executables.isEmpty) return; |
| |
| await log.progress('Precompiling executables', () async { |
| ensureDir(_snapshotPath); |
| |
| // Make sure there's a trailing newline so our version file matches the |
| // SDK's. |
| writeTextFile(p.join(_snapshotPath, 'sdk-version'), '${sdk.version}\n'); |
| |
| await _precompileExecutables(executables); |
| }); |
| } |
| |
| //// Precompiles [executables] to snapshots from the filesystem. |
| Future<void> _precompileExecutables(Map<String, List<String>> executables) { |
| return waitAndPrintErrors(executables.keys.map((package) { |
| var dir = p.join(_snapshotPath, package); |
| cleanDir(dir); |
| return waitAndPrintErrors(executables[package] |
| .map((path) => _precompileExecutable(package, path))); |
| })); |
| } |
| |
| /// Precompiles executable .dart file at [path] to a snapshot. |
| Future<void> precompileExecutable(String package, String path) async { |
| return await log.progress('Precompiling executable', () async { |
| var dir = p.join(_snapshotPath, package); |
| ensureDir(dir); |
| return waitAndPrintErrors([_precompileExecutable(package, path)]); |
| }); |
| } |
| |
| Future<void> _precompileExecutable(String package, String path) async { |
| var dir = p.join(_snapshotPath, package); |
| var url = p.toUri(p.join(packageGraph.packages[package].dir, path)); |
| await dart.snapshot(url, p.join(dir, p.basename(path) + '.snapshot.dart2'), |
| packagesFile: p.toUri(packagesFile), |
| name: '$package:${p.basenameWithoutExtension(path)}'); |
| } |
| |
| /// Deletes outdated cached executable snapshots. |
| /// |
| /// If [changed] is passed, only dependencies whose contents might be changed |
| /// if one of the given packages changes will have their executables deleted. |
| void _deleteExecutableSnapshots({Iterable<String> changed}) { |
| if (!dirExists(_snapshotPath)) return; |
| |
| // If we don't know what changed, we can't safely re-use any snapshots. |
| if (changed == null) { |
| deleteEntry(_snapshotPath); |
| return; |
| } |
| changed = changed.toSet(); |
| |
| // If the existing executable was compiled with a different SDK, we need to |
| // recompile regardless of what changed. |
| // TODO(nweiz): Use the VM to check this when issue 20802 is fixed. |
| var sdkVersionPath = p.join(_snapshotPath, 'sdk-version'); |
| if (!fileExists(sdkVersionPath) || |
| readTextFile(sdkVersionPath) != '${sdk.version}\n') { |
| deleteEntry(_snapshotPath); |
| return; |
| } |
| |
| // Clean out any outdated snapshots. |
| for (var entry in listDir(_snapshotPath)) { |
| if (!dirExists(entry)) continue; |
| |
| var package = p.basename(entry); |
| if (!packageGraph.packages.containsKey(package) || |
| packageGraph.isPackageMutable(package) || |
| packageGraph |
| .transitiveDependencies(package) |
| .any((dep) => changed.contains(dep.name))) { |
| deleteEntry(entry); |
| } |
| } |
| } |
| |
| /// Returns the list of all paths within [packageName] that should be |
| /// precompiled. |
| List<String> _executablesForPackage(String packageName) { |
| var package = packageGraph.packages[packageName]; |
| var binDir = package.path('bin'); |
| if (!dirExists(binDir)) return []; |
| if (packageGraph.isPackageMutable(packageName)) return []; |
| |
| var executables = package.executablePaths; |
| |
| // If any executables don't exist, recompile all executables. |
| // |
| // Normally, [_deleteExecutableSnapshots] will ensure that all the outdated |
| // executable directories will be deleted, any checking for any non-existent |
| // executable will save us a few IO operations over checking each one. If |
| // some executables do exist and some do not, the directory is corrupted and |
| // it's good to start from scratch anyway. |
| var executablesExist = executables.every((executable) { |
| var snapshotPath = p.join(_snapshotPath, packageName, |
| '${p.basename(executable)}.snapshot.dart2'); |
| return fileExists(snapshotPath); |
| }); |
| if (!executablesExist) return executables; |
| |
| // Otherwise, we don't need to recompile. |
| return []; |
| } |
| |
| /// Makes sure the package at [id] is locally available. |
| /// |
| /// This automatically downloads the package to the system-wide cache as well |
| /// if it requires network access to retrieve (specifically, if the package's |
| /// source is a [CachedSource]). |
| Future _get(PackageId id) { |
| return http.withDependencyType(root.dependencyType(id.name), () async { |
| if (id.isRoot) return; |
| |
| var source = cache.source(id.source); |
| if (source is CachedSource) await source.downloadToSystemCache(id); |
| }); |
| } |
| |
| /// Throws a [DataError] if the `.packages` file or the |
| /// `.dart_tool/package_config.json` file doesn't exist or if it's out-of-date |
| /// relative to the lockfile or the pubspec. |
| void assertUpToDate() { |
| if (_inMemory) return; |
| |
| if (!entryExists(lockFilePath)) { |
| dataError('No pubspec.lock file found, please run "pub get" first.'); |
| } |
| if (!entryExists(packageConfigFile)) { |
| dataError( |
| 'No .dart_tool/package_config.json file found, please run "pub get" ' |
| 'first.\n\n' |
| 'Starting with Dart 2.7 this file configures the resolution of ' |
| 'package import URIs. Running "pub get" will generate this file.', |
| ); |
| } |
| if (!entryExists(packagesFile)) { |
| dataError('No .packages file found, please run "pub get" first.'); |
| } |
| |
| // Manually parse the lockfile because a full YAML parse is relatively slow |
| // and this is on the hot path for "pub run". |
| var lockFileText = readTextFile(lockFilePath); |
| var hasPathDependencies = lockFileText.contains('\n source: path\n'); |
| |
| var pubspecModified = File(pubspecPath).lastModifiedSync(); |
| var lockFileModified = File(lockFilePath).lastModifiedSync(); |
| |
| var touchedLockFile = false; |
| if (lockFileModified.isBefore(pubspecModified) || hasPathDependencies) { |
| _assertLockFileUpToDate(); |
| if (_arePackagesAvailable()) { |
| touchedLockFile = true; |
| touch(lockFilePath); |
| } else { |
| dataError('The pubspec.yaml file has changed since the pubspec.lock ' |
| 'file was generated, please run "pub get" again.'); |
| } |
| } |
| |
| var packagesModified = File(packagesFile).lastModifiedSync(); |
| if (packagesModified.isBefore(lockFileModified)) { |
| _checkPackagesFileUpToDate(); |
| touch(packagesFile); |
| } else if (touchedLockFile) { |
| touch(packagesFile); |
| } |
| |
| var packageConfigModified = File(packageConfigFile).lastModifiedSync(); |
| if (packageConfigModified.isBefore(lockFileModified) || |
| hasPathDependencies) { |
| _checkPackageConfigUpToDate(); |
| touch(packageConfigFile); |
| } else if (touchedLockFile) { |
| touch(packageConfigFile); |
| } |
| |
| for (var match in _sdkConstraint.allMatches(lockFileText)) { |
| var identifier = match[1] == 'sdk' ? 'dart' : match[1].trim(); |
| var sdk = sdks[identifier]; |
| |
| // Don't complain if there's an SDK constraint for an unavailable SDK. For |
| // example, the Flutter SDK being unavailable just means that we aren't |
| // running from within the `flutter` executable, and we want users to be |
| // able to `pub run` non-Flutter tools even in a Flutter app. |
| if (!sdk.isAvailable) continue; |
| |
| var parsedConstraint = VersionConstraint.parse(match[2]); |
| if (!parsedConstraint.allows(sdk.version)) { |
| dataError('${sdk.name} ${sdk.version} is incompatible with your ' |
| "dependencies' SDK constraints. Please run \"pub get\" again."); |
| } |
| } |
| } |
| |
| /// Determines whether or not the lockfile is out of date with respect to the |
| /// pubspec. |
| /// |
| /// If any mutable pubspec contains dependencies that are not in the lockfile |
| /// or that don't match what's in there, this will throw a [DataError] |
| /// describing the issue. |
| void _assertLockFileUpToDate() { |
| if (!root.immediateDependencies.values.every(_isDependencyUpToDate)) { |
| dataError('The pubspec.yaml file has changed since the pubspec.lock ' |
| 'file was generated, please run "pub get" again.'); |
| } |
| |
| var overrides = MapKeySet(root.dependencyOverrides); |
| |
| // Check that uncached dependencies' pubspecs are also still satisfied, |
| // since they're mutable and may have changed since the last get. |
| for (var id in lockFile.packages.values) { |
| var source = cache.source(id.source); |
| if (source is CachedSource) continue; |
| |
| try { |
| if (cache.load(id).dependencies.values.every((dep) => |
| overrides.contains(dep.name) || _isDependencyUpToDate(dep))) { |
| continue; |
| } |
| } on FileException { |
| // If we can't load the pubpsec, the user needs to re-run "pub get". |
| } |
| |
| dataError('${p.join(source.getDirectory(id), 'pubspec.yaml')} has ' |
| 'changed since the pubspec.lock file was generated, please run "pub ' |
| 'get" again.'); |
| } |
| } |
| |
| /// Returns whether the locked version of [dep] matches the dependency. |
| bool _isDependencyUpToDate(PackageRange dep) { |
| if (dep.name == root.name) return true; |
| |
| var locked = lockFile.packages[dep.name]; |
| return locked != null && dep.allows(locked); |
| } |
| |
| /// Determines whether all of the packages in the lockfile are already |
| /// installed and available. |
| bool _arePackagesAvailable() { |
| return lockFile.packages.values.every((package) { |
| if (package.source is UnknownSource) return false; |
| |
| // We only care about cached sources. Uncached sources aren't "installed". |
| // If one of those is missing, we want to show the user the file not |
| // found error later since installing won't accomplish anything. |
| var source = cache.source(package.source); |
| if (source is! CachedSource) return true; |
| |
| // Get the directory. |
| var dir = source.getDirectory(package); |
| // See if the directory is there and looks like a package. |
| return dirExists(dir) && fileExists(p.join(dir, 'pubspec.yaml')); |
| }); |
| } |
| |
| /// Determines [lockfile] agrees with the given [packagePathsMapping]. |
| /// |
| /// The [packagePathsMapping] is a mapping from package names to paths where |
| /// the packages are located. (The library is located under |
| /// `lib/` relative to the path given). |
| bool _isPackagePathsMappingUptodateWithLockfile( |
| Map<String, String> packagePathsMapping) => |
| lockFile.packages.values.every((lockFileId) { |
| // It's very unlikely that the lockfile is invalid here, but it's not |
| // impossible—for example, the user may have a very old application |
| // package with a checked-in lockfile that's newer than the pubspec, but |
| // that contains SDK dependencies. |
| if (lockFileId.source is UnknownSource) return false; |
| |
| final packagePath = packagePathsMapping[lockFileId.name]; |
| if (packagePath == null) { |
| return false; |
| } |
| |
| final source = cache.source(lockFileId.source); |
| final lockFilePackagePath = |
| p.join(root.dir, source.getDirectory(lockFileId)); |
| |
| // Make sure that the packagePath agrees with the lock file about the |
| // path to the package. |
| if (p.normalize(packagePath) != p.normalize(lockFilePackagePath)) { |
| return false; |
| } |
| |
| // For cached sources, make sure the directory exists and looks like a |
| // package. This is also done by [_arePackagesAvailable] but that may not |
| // be run if the lockfile is newer than the pubspec. |
| if (source is CachedSource && !dirExists(lockFilePackagePath) || |
| !fileExists(p.join(lockFilePackagePath, 'pubspec.yaml'))) { |
| return false; |
| } |
| |
| return true; |
| }); |
| |
| /// Checks whether or not the `.packages` file is out of date with respect |
| /// to the [lockfile]. |
| /// |
| /// This will throw a [DataError] if [lockfile] contains dependencies that |
| /// are not in the `.packages` or that don't match what's in there. |
| void _checkPackagesFileUpToDate() { |
| void outOfDate() { |
| dataError('The pubspec.lock file has changed since the .packages file ' |
| 'was generated, please run "pub get" again.'); |
| } |
| |
| var packages = packages_file.parse( |
| File(packagesFile).readAsBytesSync(), p.toUri(packagesFile)); |
| |
| final packagePathsMapping = <String, String>{}; |
| for (final package in packages.keys) { |
| final packageUri = packages[package]; |
| |
| // Pub only generates "file:" and relative URIs. |
| if (packageUri.scheme != 'file' && packageUri.scheme.isNotEmpty) { |
| outOfDate(); |
| } |
| |
| // Get the dirname of the .packages path, since it's pointing to lib/. |
| final packagePath = p.dirname(p.join(root.dir, p.fromUri(packageUri))); |
| packagePathsMapping[package] = packagePath; |
| } |
| |
| if (!_isPackagePathsMappingUptodateWithLockfile(packagePathsMapping)) { |
| outOfDate(); |
| } |
| } |
| |
| /// Checks whether or not the `.dart_tool/package_config.json` file is |
| /// out of date with respect to the lockfile. |
| /// |
| /// This will throw a [DataError] if the [lockfile] contains dependencies that |
| /// are not in the `.dart_tool/package_config.json` or that don't match |
| /// what's in there. |
| /// |
| /// Throws [DataException], if `.dart_tool/package_config.json` is not |
| /// up-to-date for some other reason. |
| void _checkPackageConfigUpToDate() { |
| void outOfDate() { |
| dataError('The pubspec.lock file has changed since the ' |
| '.dart_tool/package_config.json file ' |
| 'was generated, please run "pub get" again.'); |
| } |
| |
| void badPackageConfig() { |
| dataError( |
| 'The ".dart_tool/package_config.json" file is not recognized by ' |
| '"pub" version, please run "pub get".'); |
| } |
| |
| String packageConfigRaw; |
| try { |
| packageConfigRaw = readTextFile(packageConfigFile); |
| } on FileException { |
| dataError( |
| 'The ".dart_tool/package_config.json" file does not exist, please run "pub get".'); |
| } |
| |
| PackageConfig cfg; |
| try { |
| cfg = PackageConfig.fromJson(json.decode(packageConfigRaw)); |
| } on FormatException { |
| badPackageConfig(); |
| } |
| if (cfg.configVersion != 2 || |
| cfg.generator != 'pub' || |
| cfg.generatorVersion != sdk.version) { |
| badPackageConfig(); |
| } |
| |
| final packagePathsMapping = <String, String>{}; |
| for (final pkg in cfg.packages) { |
| // Pub always sets packageUri = lib/ |
| if (pkg.packageUri == null || pkg.packageUri.toString() != 'lib/') { |
| badPackageConfig(); |
| } |
| packagePathsMapping[pkg.name] = |
| root.path('.dart_tool', p.fromUri(pkg.rootUri)); |
| } |
| if (!_isPackagePathsMappingUptodateWithLockfile(packagePathsMapping)) { |
| outOfDate(); |
| } |
| |
| for (final pkg in cfg.packages) { |
| final id = lockFile.packages[pkg.name]; |
| if (id == null) { |
| continue; // Ignore entries that aren't in the lockFile |
| } |
| |
| final source = cache.source(id.source); |
| if (source is CachedSource) { |
| continue; |
| } |
| |
| try { |
| final languageVersion = extractLanguageVersion( |
| cache.load(id).pubspec.sdkConstraints[sdk.identifier], |
| ); |
| if (pkg.languageVersion != languageVersion) { |
| dataError('${p.join(source.getDirectory(id), 'pubspec.yaml')} has ' |
| 'changed since the pubspec.lock file was generated, please run ' |
| '"pub get" again.'); |
| } |
| } on FileException { |
| dataError('Failed to read pubspec.yaml for "${pkg.name}", perhaps the ' |
| 'entry is missing, please run "pub get".'); |
| } |
| } |
| } |
| |
| /// Saves a list of concrete package versions to the `pubspec.lock` file. |
| void _saveLockFile(SolveResult result) { |
| _lockFile = result.lockFile; |
| var lockFilePath = root.path('pubspec.lock'); |
| writeTextFile(lockFilePath, _lockFile.serialize(root.dir)); |
| } |
| |
| /// If the entrypoint uses the old-style `.pub` cache directory, migrates it |
| /// to the new-style `.dart_tool/pub` directory. |
| void migrateCache() { |
| var oldPath = root.path('.pub'); |
| if (!dirExists(oldPath)) return; |
| |
| var newPath = root.path('.dart_tool/pub'); |
| |
| // If both the old and new directories exist, something weird is going on. |
| // Do nothing to avoid making things worse. Pub will prefer the new |
| // directory anyway. |
| if (dirExists(newPath)) return; |
| |
| ensureDir(p.dirname(newPath)); |
| renameDir(oldPath, newPath); |
| } |
| } |