Dev dependencies.

utils/pub/pubspec.dart

Index: utils/pub/pubspec.dart
diff --git a/utils/pub/pubspec.dart b/utils/pub/pubspec.dart
index 81678afc0b039f234c7c1c65bc88141e2b3b54cf..92cf29bbfe488f856fa0f92dcc3aa8e66057d59f 100644
--- a/utils/pub/pubspec.dart
+++ b/utils/pub/pubspec.dart
@@ -25,6 +25,9 @@ class Pubspec {
   /// The packages this package depends on.
   final List<PackageRef> dependencies;
 
+  /// The packages this package depends on when it is the root package.
+  final List<PackageRef> devDependencies;
+
   /// The environment-related metadata.
   final PubspecEnvironment environment;
 
@@ -55,14 +58,15 @@ class Pubspec {
     }
   }
 
-  Pubspec(this.name, this.version, this.dependencies, this.environment,
-      [Map<String, Object> fields])
+  Pubspec(this.name, this.version, this.dependencies, this.devDependencies,
+          this.environment, [Map<String, Object> fields])
     : this.fields = fields == null ? {} : fields;
 
   Pubspec.empty()
     : name = null,
       version = Version.none,
       dependencies = <PackageRef>[],
+      devDependencies = <PackageRef>[],
       environment = new PubspecEnvironment(),
       fields = {};
 
@@ -105,6 +109,21 @@ class Pubspec {
     var dependencies = _parseDependencies(filePath, sources,
         parsedPubspec['dependencies']);
 
+    var devDependencies = _parseDependencies(filePath, sources,
+        parsedPubspec['dev_dependencies']);
+
+    // Make sure the same package doesn't appear as both a regular and dev
+    // dependency.
+    var dependencyNames = dependencies.map((dep) => dep.name).toSet();
+    var collisions = dependencyNames.intersection(
+        devDependencies.map((dep) => dep.name).toSet());
+
+    if (!collisions.isEmpty) {
+      throw new FormatException(
+          'Package "${collisions.first}" cannot appear in both "dependencies" '
+          'and "dev_dependencies".');

[nweiz, 2013/03/13 18:46:29]

Let's list all the collisions so users don't have to run commands over and over
again.

[Bob Nystrom, 2013/03/13 19:42:44]

Done.

+    }
+
     var environmentYaml = parsedPubspec['environment'];
     var sdkConstraint = VersionConstraint.any;
     if (environmentYaml != null) {
@@ -169,7 +188,8 @@ class Pubspec {
       }
     }
 
-    return new Pubspec(name, version, dependencies, environment, parsedPubspec);
+    return new Pubspec(name, version, dependencies, devDependencies,
+        environment, parsedPubspec);
   }
 }