Move *SDK environments into a single ToolEnvironment class.

CHANGELOG.md

@@ -1,3 +1,9 @@
+## 0.11.0-dev
+
+**Breaking changes:**
+
+* `DartSdk`, `FlutterSdk` and `PubEnvironment` is replaced with `ToolEnvironment`.
+
 ## 0.10.6
 
 * Enable Dart 2 Preview in analyzer options (including non-Flutter packages).

lib/src/library_scanner.dart

@@ -46,10 +46,10 @@ class LibraryScanner {
       this._context, this._overrides);
 
   factory LibraryScanner(
-      PubEnvironment pubEnv, String packagePath, bool useFlutter,
+      ToolEnvironment toolEnv, String packagePath, bool useFlutter,
       {List<LibraryOverride> overrides}) {
     // TODO: fail more clearly if this...fails
-    var sdkPath = pubEnv.dartSdk.sdkDir;
+    var sdkPath = toolEnv.dartSdkDir;
 
     var resourceProvider = PhysicalResourceProvider.INSTANCE;
     var sdk = new FolderBasedDartSdk(
@@ -65,7 +65,7 @@ class LibraryScanner {
     RunPubList runPubList;
     if (useFlutter) {
       runPubList = (Folder folder) =>
-          pubEnv.listPackageDirsSync(folder.path, useFlutter);
+          toolEnv.listPackageDirsSync(folder.path, useFlutter);
     }
 
     var pubPackageMapProvider = new PubPackageMapProvider(

lib/src/package_analyzer.dart

@@ -26,26 +26,17 @@ import 'utils.dart';
 import 'version.dart';
 
 class PackageAnalyzer {
-  final DartSdk _dartSdk;
-  final FlutterSdk _flutterSdk;
-  final PubEnvironment _pubEnv;
+  final ToolEnvironment _toolEnv;
 
-  PackageAnalyzer._(this._dartSdk, this._flutterSdk, this._pubEnv);
-
-  factory PackageAnalyzer(DartSdk dartSdk,
-      {String flutterDir, String pubCacheDir}) {
-    var flutterSdk = new FlutterSdk(sdkDir: flutterDir);
-
-    var pubEnv = new PubEnvironment(dartSdk,
-        flutterSdk: flutterSdk, pubCacheDir: pubCacheDir);
-
-    return new PackageAnalyzer._(dartSdk, flutterSdk, pubEnv);
-  }
+  PackageAnalyzer(this._toolEnv);
 
   static Future<PackageAnalyzer> create(
-          {String sdkDir, String flutterDir, String pubCacheDir}) async =>
-      new PackageAnalyzer(await DartSdk.create(sdkDir: sdkDir),
-          flutterDir: flutterDir, pubCacheDir: pubCacheDir);
+      {String sdkDir, String flutterDir, String pubCacheDir}) async {
+    return new PackageAnalyzer(await ToolEnvironment.create(
+        dartSdkDir: sdkDir,
+        flutterSdkDir: flutterDir,
+        pubCacheDir: pubCacheDir));
+  }
 
   Future<Summary> inspectPackage(
     String package, {
@@ -66,7 +57,7 @@ class PackageAnalyzer {
         packageDir = tempDir?.path;
       }
       if (packageDir == null) {
-        var pkgInfo = await _pubEnv.getLocation(package, version: version);
+        var pkgInfo = await _toolEnv.getLocation(package, version: version);
         packageDir = pkgInfo.location;
       }
       try {
@@ -88,9 +79,9 @@ class PackageAnalyzer {
   }
 
   Future<Summary> _inspect(String pkgDir, bool keepTransitiveLibs) async {
-    log.info("SDK: ${_dartSdk.version}");
-    if (_pubEnv.pubCacheDir != null) {
-      log.fine("Using .package-cache: ${_pubEnv.pubCacheDir}");
+    log.info("SDK: ${_toolEnv.dartSdkInfo.version}");
+    if (_toolEnv.pubCacheDir != null) {
+      log.fine("Using .package-cache: ${_toolEnv.pubCacheDir}");
     }
     log.fine('Inspecting package at $pkgDir');
     final suggestions = <Suggestion>[];
@@ -120,7 +111,7 @@ class PackageAnalyzer {
     Set<String> unformattedFiles;
     try {
       unformattedFiles = new SplayTreeSet<String>.from(
-          await _dartSdk.filesNeedingFormat(pkgDir));
+          await _toolEnv.filesNeedingFormat(pkgDir));
 
       assert(unformattedFiles.every((f) => dartFiles.contains(f)),
           'dartfmt should only return Dart files');
@@ -136,7 +127,7 @@ class PackageAnalyzer {
     }
 
     log.info("Pub upgrade...");
-    final upgrade = await _pubEnv.runUpgrade(pkgDir, usesFlutter);
+    final upgrade = await _toolEnv.runUpgrade(pkgDir, usesFlutter);
 
     PkgResolution pkgResolution;
     if (upgrade.exitCode == 0) {
@@ -194,7 +185,7 @@ class PackageAnalyzer {
               'package:package_resolver/package_resolver.dart'),
         ];
 
-        libraryScanner = new LibraryScanner(_pubEnv, pkgDir, usesFlutter,
+        libraryScanner = new LibraryScanner(_toolEnv, pkgDir, usesFlutter,
             overrides: overrides);
         assert(libraryScanner.packageName == package);
       } catch (e, stack) {
@@ -296,7 +287,7 @@ class PackageAnalyzer {
 
     Map<String, Object> flutterVersion;
     if (usesFlutter) {
-      flutterVersion = await _flutterSdk.getVersion();
+      flutterVersion = await _toolEnv.getFlutterVersion();
     }
 
     DartPlatform platform;
@@ -328,7 +319,7 @@ class PackageAnalyzer {
 
     return new Summary(
       panaPkgVersion,
-      _dartSdk.version,
+      _toolEnv.dartSdkInfo.version,
       pubspec.name,
       pubspec.version,
       pubspec,
@@ -349,7 +340,7 @@ class PackageAnalyzer {
     if (dirs.isEmpty) {
       return null;
     }
-    final proc = await _dartSdk.runAnalyzer(pkgPath, dirs, usesFlutter);
+    final proc = await _toolEnv.runAnalyzer(pkgPath, dirs, usesFlutter);
 
     String output = proc.stderr;
     if ('\n$output'.contains('\nUnhandled exception:\n')) {

lib/src/sdk_env.dart

@@ -8,45 +8,87 @@ import 'dart:io';
 
 import 'package:cli_util/cli_util.dart' as cli;
 import 'package:path/path.dart' as p;
-import 'package:pub_semver/pub_semver.dart';
 
 import 'analysis_options.dart';
 import 'logging.dart';
 import 'pubspec.dart';
 import 'sdk_info.dart';
 import 'utils.dart';
 
-class DartSdk implements DartSdkInfo {
-  final String sdkDir;
-  final Map<String, String> _environment;
+class ToolEnvironment {
+  final String dartSdkDir;
+  final String pubCacheDir;
+  final String _dartCmd;
+  final String _pubCmd;
   final String _dartAnalyzerCmd;
   final String _dartfmtCmd;
-  final String _pubCmd;
-  final String dateString;
-  final String platform;
-  final Version version;
-
-  DartSdk._(this.sdkDir, this._environment, this.version, this.dateString,
-      this.platform)
-      : _dartAnalyzerCmd = _join(sdkDir, 'bin', 'dartanalyzer'),
-        _dartfmtCmd = _join(sdkDir, 'bin', 'dartfmt'),
-        _pubCmd = _join(sdkDir, 'bin', 'pub');
-
-  static Future<DartSdk> create(
-      {String sdkDir, Map<String, String> environment}) async {
-    sdkDir ??= cli.getSdkPath();
-    environment ??= {};
+  final String _flutterCmd;
+  final Map<String, String> _environment;
+  DartSdkInfo _dartSdkInfo;
+
+  ToolEnvironment._(
+    this.dartSdkDir,
+    this.pubCacheDir,
+    this._dartCmd,
+    this._pubCmd,
+    this._dartAnalyzerCmd,
+    this._dartfmtCmd,
+    this._flutterCmd,
+    this._environment,
+  );
+
+  DartSdkInfo get dartSdkInfo => _dartSdkInfo;
+
+  Future _init() async {
+    final dartVersionResult = handleProcessErrors(
+        await runProc(_dartCmd, ['--version'], environment: _environment));
+    final dartVersionString = dartVersionResult.stderr.toString().trim();
+    _dartSdkInfo = new DartSdkInfo.parse(dartVersionString);
+  }
 
-    var dartCmd = _join(sdkDir, 'bin', 'dart');
+  static Future<ToolEnvironment> create({
+    String dartSdkDir,
+    String flutterSdkDir,
+    String pubCacheDir,
+    Map<String, String> environment,
+  }) async {
+    Future<String> resolve(String dir) async {
+      if (dir == null) return null;
+      return new Directory(dir).resolveSymbolicLinks();
+    }
 
-    var r = handleProcessErrors(
-        await runProc(dartCmd, ['--version'], environment: environment));
-    var versionString = r.stderr.toString().trim();
+    dartSdkDir ??= cli.getSdkPath();
+    final resolvedDartSdk = await resolve(dartSdkDir);
+    final resolvedFlutterSdk = await resolve(flutterSdkDir);
+    final resolvedPubCache = await resolve(pubCacheDir);
+    final env = <String, String>{};
+    env.addAll(environment ?? const {});
 
-    var info = new DartSdkInfo.parse(versionString);
+    if (resolvedPubCache != null) {
+      env['PUB_CACHE'] = resolvedPubCache;
+    }
 
-    return new DartSdk._(
-        sdkDir, environment, info.version, info.dateString, info.platform);
+    final pubEnvValues = <String>[];
+    final origPubEnvValue = Platform.environment[_pubEnvironmentKey] ?? '';
+    pubEnvValues.addAll(origPubEnvValue
+        .split(':')
+        .map((s) => s.trim())
+        .where((s) => s.isNotEmpty));
+    pubEnvValues.add('bot.pkg_pana');
+    env[_pubEnvironmentKey] = pubEnvValues.join(':');
+
+    final toolEnv = new ToolEnvironment._(
+      resolvedDartSdk,
+      resolvedPubCache,
+      _join(resolvedDartSdk, 'bin', 'dart'),
+      _join(resolvedDartSdk, 'bin', 'pub'),
+      _join(resolvedDartSdk, 'bin', 'dartanalyzer'),
+      _join(resolvedDartSdk, 'bin', 'dartfmt'),
+      _join(resolvedFlutterSdk, 'bin', 'flutter'),
+      env,
+    );
+    await toolEnv._init();
+    return toolEnv;
   }
 
   Future<ProcessResult> runAnalyzer(
@@ -111,7 +153,7 @@ class DartSdk implements DartSdkInfo {
     return files;
   }
 
-  Future<ProcessResult> _execUpgrade(
+  Future<ProcessResult> _execPubUpgrade(
       String packageDir, Map<String, String> environment) {
     return runProc(
       _pubCmd,
@@ -120,71 +162,21 @@ class DartSdk implements DartSdkInfo {
       environment: environment,
     );
   }
-}
-
-class FlutterSdk {
-  final String _flutterBin;
 
-  FlutterSdk({String sdkDir}) : _flutterBin = _join(sdkDir, 'bin', 'flutter');
-
-  Future<ProcessResult> _execUpgrade(
+  Future<ProcessResult> _execFlutterUpgrade(
           String packageDir, Map<String, String> environment) =>
       runProc(
-        _flutterBin,
+        _flutterCmd,
         ['packages', 'pub', 'upgrade', '--verbosity', 'io', '--no-precompile'],
         workingDirectory: packageDir,
         environment: environment,
       );
 
-  Future<Map<String, Object>> getVersion() async {
-    var result = await runProc(_flutterBin, ['--version', '--machine']);
+  Future<Map<String, Object>> getFlutterVersion() async {
+    var result = await runProc(_flutterCmd, ['--version', '--machine']);
     assert(result.exitCode == 0);
     return json.decode(result.stdout);
   }
-}
-
-class PubEnvironment {
-  final DartSdk dartSdk;
-  final FlutterSdk flutterSdk;
-  final String pubCacheDir;
-  final Map<String, String> _environment = {};
-
-  PubEnvironment(this.dartSdk, {FlutterSdk flutterSdk, this.pubCacheDir})
-      : this.flutterSdk = flutterSdk ?? new FlutterSdk() {
-    _environment.addAll(this.dartSdk._environment);
-    if (!_environment.containsKey(_pubEnvironmentKey)) {
-      // Then do the standard behavior. Extract the current value, if any,
-      // and append the default value
-
-      var pubEnvironment = <String>[];
-
-      var currentEnv = Platform.environment[_pubEnvironmentKey];
-
-      if (currentEnv != null) {
-        pubEnvironment.addAll(currentEnv
-                .split(
-                    ':') // if there are many values, they should be separated by `:`
-                .map((v) => v.trim()) // don't want whitespace
-                .where((v) => v.isNotEmpty) // don't want empty values
-            );
-      }
-
-      pubEnvironment.add('bot.pkg_pana');
-
-      _environment[_pubEnvironmentKey] = pubEnvironment.join(':');
-    }
-    if (pubCacheDir != null) {
-      var resolvedDir = new Directory(pubCacheDir).resolveSymbolicLinksSync();
-      if (resolvedDir != pubCacheDir) {
-        throw new ArgumentError([
-          "Make sure you resolve symlinks:",
-          pubCacheDir,
-          resolvedDir
-        ].join('\n'));
-      }
-      _environment['PUB_CACHE'] = pubCacheDir;
-    }
-  }
 
   Future<bool> detectFlutterUse(String packageDir) async {
     final pubspec = new Pubspec.parseFromDir(packageDir);
@@ -200,9 +192,9 @@ class PubEnvironment {
         retryCount--;
 
         if (usesFlutter) {
-          result = await flutterSdk._execUpgrade(packageDir, _environment);
+          result = await _execFlutterUpgrade(packageDir, _environment);
         } else {
-          result = await dartSdk._execUpgrade(packageDir, _environment);
+          result = await _execPubUpgrade(packageDir, _environment);
         }
 
         if (result.exitCode > 0) {
@@ -234,7 +226,7 @@ class PubEnvironment {
     args.add(package);
 
     var result = handleProcessErrors(await runProc(
-      dartSdk._pubCmd,
+      _pubCmd,
       args,
       environment: _environment,
     ));
@@ -255,7 +247,7 @@ class PubEnvironment {
 
     // now get all installed packages
     result = handleProcessErrors(await runProc(
-      dartSdk._pubCmd,
+      _pubCmd,
       ['cache', 'list'],
       environment: _environment,
     ));
@@ -276,15 +268,15 @@ class PubEnvironment {
     if (usesFlutter) {
       // flutter env
       return runProcSync(
-        flutterSdk._flutterBin,
+        _flutterCmd,
         ['packages', 'pub', 'list-package-dirs'],
         workingDirectory: packageDir,
         environment: _environment,
       );
     } else {
       // normal pub
       return runProcSync(
-        dartSdk._pubCmd,
+        _pubCmd,
         ['list-package-dirs'],
         workingDirectory: packageDir,
         environment: _environment,

lib/src/version.g.dart

@@ -10,4 +10,4 @@ part of pana.version;
 // Generator: PackageVersionGenerator
 // **************************************************************************
 
-final _$panaPkgVersionPubSemverVersion = new Version.parse("0.10.6");
+final _$panaPkgVersionPubSemverVersion = new Version.parse("0.11.0-dev");