1 files changed, 41 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/rules/repository/WorkspaceBaseRule.java b/src/main/java/com/google/devtools/build/lib/rules/repository/WorkspaceBaseRule.java
new file mode 100644
index 0000000000..64bb1d526e
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/rules/repository/WorkspaceBaseRule.java
@@ -0,0 +1,41 @@
+// Copyright 2015 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.devtools.build.lib.rules.repository;
+
+import com.google.devtools.build.lib.analysis.RuleDefinition;
+import com.google.devtools.build.lib.analysis.RuleDefinitionEnvironment;
+import com.google.devtools.build.lib.packages.RuleClass;
+import com.google.devtools.build.lib.packages.RuleClass.Builder;
+import com.google.devtools.build.lib.packages.RuleClass.Builder.RuleClassType;
+
+/**
+ * Base rule for rules in the WORKSPACE file.
+ */
+public class WorkspaceBaseRule implements RuleDefinition {
+  @Override
+  public RuleClass build(Builder builder, RuleDefinitionEnvironment environment) {
+    return builder
+        .exemptFromConstraintChecking("workspace rules aren't built for target environments")
+        .build();
+  }
+
+  @Override
+  public Metadata getMetadata() {
+    return RuleDefinition.Metadata.builder()
+        .name("$workspace_base_rule")
+        .type(RuleClassType.ABSTRACT)
+        .build();
+  }
+}