Move ExecutionInfoSpecifier to lib.actions

We were previously jumping through hoops to avoid cyclic dependencies. It's
unclear why the class was here in the first place rather than in lib.actions.

--
PiperOrigin-RevId: 143948959
MOS_MIGRATED_REVID=143948959

1 files changed, 34 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/actions/ExecutionInfoSpecifier.java b/src/main/java/com/google/devtools/build/lib/actions/ExecutionInfoSpecifier.java
new file mode 100644
index 0000000000..e7038a0472
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/actions/ExecutionInfoSpecifier.java
@@ -0,0 +1,34 @@
+// Copyright 2016 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.actions;
+
+import java.util.Map;
+
+/**
+ * An action that specifies requirements for its execution.
+ */
+public interface ExecutionInfoSpecifier {
+
+  /**
+   * Returns execution data for this action.  This is used to signal hardware requirements to the
+   * execution (ex. "requires-darwin").  This is a workaround to allow execution on platforms other
+   * than that specified by the host configuration.  The ability to choose seperate platforms by
+   * action can provide a performance advantage.
+   *
+   * <p>Restrictions are mapped to arbitrary values (typically "") so as to be consistent with
+   * {@link com.google.devtools.build.lib.actions.Spawn#getExecutionInfo()}.
+   */
+  Map<String, String> getExecutionInfo();
+}