Start pulling pub from its own repo.

sdk/lib/_internal/pub/lib/src/command/build.dart

Index: sdk/lib/_internal/pub/lib/src/command/build.dart
diff --git a/sdk/lib/_internal/pub/lib/src/command/build.dart b/sdk/lib/_internal/pub/lib/src/command/build.dart
deleted file mode 100644
index b07cd95d617b7c054fd607f49dba7d198cf5dc3c..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub/lib/src/command/build.dart
+++ /dev/null
@@ -1,268 +0,0 @@
-// Copyright (c) 2013, 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.
-
-library pub.command.build;
-
-import 'dart:async';
-
-import 'package:barback/barback.dart';
-import 'package:path/path.dart' as path;
-
-import '../barback/asset_environment.dart';
-import '../exit_codes.dart' as exit_codes;
-import '../io.dart';
-import '../log.dart' as log;
-import '../utils.dart';
-import 'barback.dart';
-
-final _arrow = getSpecial('\u2192', '=>');
-
-/// Handles the `build` pub command.
-class BuildCommand extends BarbackCommand {
-  String get name => "build";
-  String get description => "Apply transformers to build a package.";
-  String get invocation => "pub build [options] [directories...]";
-  String get docUrl => "http://dartlang.org/tools/pub/cmd/pub-build.html";
-  List<String> get aliases => const ["deploy", "settle-up"];
-
-  /// The path to the application's build output directory.
-  String get outputDirectory => argResults["output"];
-
-  List<String> get defaultSourceDirectories => ["web"];
-
-  /// The number of files that have been built and written to disc so far.
-  int builtFiles = 0;
-
-  BuildCommand() {
-    argParser.addOption("define", abbr: "D",
-        help: "Defines an environment constant for dart2js.",
-        allowMultiple: true, splitCommas: false);
-
-    argParser.addOption("format",
-        help: "How output should be displayed.",
-        allowed: ["text", "json"], defaultsTo: "text");
-
-    argParser.addOption("output", abbr: "o",
-        help: "Directory to write build outputs to.",
-        defaultsTo: "build");
-  }
-
-  Future onRunTransformerCommand() async {
-    cleanDir(outputDirectory);
-
-    var errorsJson = [];
-    var logJson = [];
-
-    var environmentConstants = new Map.fromIterable(argResults["define"],
-        key: (pair) => pair.split("=").first,
-        value: (pair) => pair.split("=").last);
-
-    // Since this server will only be hit by the transformer loader and isn't
-    // user-facing, just use an IPv4 address to avoid a weird bug on the
-    // OS X buildbots.
-    return AssetEnvironment.create(entrypoint, mode,
-            environmentConstants: environmentConstants,
-            useDart2JS: true)
-        .then((environment) {
-      // Show in-progress errors, but not results. Those get handled
-      // implicitly by getAllAssets().
-      environment.barback.errors.listen((error) {
-        log.error(log.red("Build error:\n$error"));
-
-        if (log.json.enabled) {
-          // Wrap the error in a map in case we end up decorating it with
-          // more properties later.
-          errorsJson.add({
-            "error": error.toString()
-          });
-        }
-      });
-
-      // If we're using JSON output, the regular server logging is disabled.
-      // Instead, we collect it here to include in the final JSON result.
-      if (log.json.enabled) {
-        environment.barback.log.listen(
-            (entry) => logJson.add(_logEntryToJson(entry)));
-      }
-
-      return log.progress("Building ${entrypoint.root.name}", () {
-        // Register all of the build directories.
-        // TODO(rnystrom): We don't actually need to bind servers for these, we
-        // just need to add them to barback's sources. Add support to
-        // BuildEnvironment for going the latter without the former.
-        return Future.wait(sourceDirectories.map(
-            (dir) => environment.serveDirectory(dir))).then((_) {
-
-          return environment.barback.getAllAssets();
-        });
-      }).then((assets) {
-        // Find all of the JS entrypoints we built.
-        var dart2JSEntrypoints = assets
-            .where((asset) => asset.id.path.endsWith(".dart.js"))
-            .map((asset) => asset.id);
-
-        return Future.wait(assets.map(_writeAsset)).then((_) {
-          return _copyBrowserJsFiles(dart2JSEntrypoints, assets);
-        }).then((_) {
-          log.message('Built $builtFiles ${pluralize('file', builtFiles)} '
-              'to "$outputDirectory".');
-
-          log.json.message({
-            "buildResult": "success",
-            "outputDirectory": outputDirectory,
-            "numFiles": builtFiles,
-            "log": logJson
-          });
-        });
-      });
-    }).catchError((error) {
-      // If [getAllAssets()] throws a BarbackException, the error has already
-      // been reported.
-      if (error is! BarbackException) throw error;
-
-      log.error(log.red("Build failed."));
-      log.json.message({
-        "buildResult": "failure",
-        "errors": errorsJson,
-        "log": logJson
-      });
-
-      return flushThenExit(exit_codes.DATA);
-    });
-  }
-
-  /// Writes [asset] to the appropriate build directory.
-  ///
-  /// If [asset] is in the special "packages" directory, writes it to every
-  /// build directory.
-  Future _writeAsset(Asset asset) async {
-    // In release mode, strip out .dart files since all relevant ones have been
-    // compiled to JavaScript already.
-    if (mode == BarbackMode.RELEASE && asset.id.extension == ".dart") {
-      return null;
-    }
-
-    var destPath = _idToPath(asset.id);
-
-    // If the asset is from a public directory, copy it into all of the
-    // top-level build directories.
-    if (path.isWithin("packages", destPath)) {
-      return Future.wait(sourceDirectories.map((buildDir) =>
-          _writeOutputFile(asset, path.join(buildDir, destPath))));
-    }
-
-    return _writeOutputFile(asset, destPath);
-  }
-
-  /// Converts [id] to a relative path in the output directory for that asset.
-  ///
-  /// This corresponds to the URL that could be used to request that asset from
-  /// pub serve.
-  ///
-  /// Examples (where entrypoint is "myapp"):
-  ///
-  ///     myapp|web/index.html   -> web/index.html
-  ///     myapp|lib/lib.dart     -> packages/myapp/lib.dart
-  ///     foo|lib/foo.dart       -> packages/foo/foo.dart
-  ///     myapp|test/main.dart   -> test/main.dart
-  ///     foo|test/main.dart     -> ERROR
-  ///
-  /// Throws a [FormatException] if [id] is not a valid public asset.
-  String _idToPath(AssetId id) {
-    var parts = path.split(path.fromUri(id.path));
-
-    if (parts.length < 2) {
-      throw new FormatException(
-          "Can not build assets from top-level directory.");
-    }
-
-    // Map "lib" to the "packages" directory.
-    if (parts[0] == "lib") {
-      return path.join("packages", id.package, path.joinAll(parts.skip(1)));
-    }
-
-    // Shouldn't be trying to access non-public directories of other packages.
-    assert(id.package == entrypoint.root.name);
-
-    // Allow any path in the entrypoint package.
-    return path.joinAll(parts);
-  }
-
-  /// Writes the contents of [asset] to [relativePath] within the build
-  /// directory.
-  Future _writeOutputFile(Asset asset, String relativePath) {
-    builtFiles++;
-    var destPath = path.join(outputDirectory, relativePath);
-    ensureDir(path.dirname(destPath));
-    return createFileFromStream(asset.read(), destPath);
-  }
-
-  /// If this package depends directly on the `browser` package, this ensures
-  /// that the JavaScript bootstrap files are copied into `packages/browser/`
-  /// directories next to each entrypoint in [entrypoints].
-  Future _copyBrowserJsFiles(Iterable<AssetId> entrypoints, AssetSet assets) {
-    // Must depend on the browser package.
-    if (!entrypoint.root.immediateDependencies.any(
-        (dep) => dep.name == 'browser' && dep.source == 'hosted')) {
-      return new Future.value();
-    }
-
-    // Get all of the subdirectories that contain Dart entrypoints.
-    var entrypointDirs = entrypoints
-        // Convert the asset path to a native-separated one and get the
-        // directory containing the entrypoint.
-        .map((id) => path.dirname(path.fromUri(id.path)))
-        // Don't copy files to the top levels of the build directories since
-        // the normal lib asset copying will take care of that.
-        .where((dir) => path.split(dir).length > 1)
-        .toSet();
-
-    var jsAssets = assets.where((asset) =>
-        asset.id.package == 'browser' && asset.id.extension == '.js');
-    return Future.wait(entrypointDirs.expand((dir) {
-      // TODO(nweiz): we should put browser JS files next to any HTML file
-      // rather than any entrypoint. An HTML file could import an entrypoint
-      // that's not adjacent.
-      return jsAssets.map((asset) {
-        var jsPath = path.join(dir, _idToPath(asset.id));
-        return _writeOutputFile(asset, jsPath);
-      });
-    }));
-  }
-
-  /// Converts [entry] to a JSON object for use with JSON-formatted output.
-  Map _logEntryToJson(LogEntry entry) {
-    var data = {
-      "level": entry.level.name,
-      "transformer": {
-        "name": entry.transform.transformer.toString(),
-        "primaryInput": {
-          "package": entry.transform.primaryId.package,
-          "path": entry.transform.primaryId.path
-        },
-      },
-      "assetId": {
-        "package": entry.assetId.package,
-        "path": entry.assetId.path
-      },
-      "message": entry.message
-    };
-
-    if (entry.span != null) {
-      data["span"] = {
-        "url": entry.span.sourceUrl,
-        "start": {
-          "line": entry.span.start.line,
-          "column": entry.span.start.column
-        },
-        "end": {
-          "line": entry.span.end.line,
-          "column": entry.span.end.column
-        },
-      };
-    }
-
-    return data;
-  }
-}