Add imports attribute to Bazel native Python rules to allow adding directories to PYTHONPATH.

Fixes #702

RELNOTES: Add imports attribute to native Python rules.

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MOS_MIGRATED_REVID=114314430

1 files changed, 36 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/rules/python/PythonImportsProvider.java b/src/main/java/com/google/devtools/build/lib/rules/python/PythonImportsProvider.java
new file mode 100644
index 0000000000..03bb52aa70
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/rules/python/PythonImportsProvider.java
@@ -0,0 +1,36 @@
+// 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.rules.python;
+
+import com.google.devtools.build.lib.analysis.TransitiveInfoProvider;
+import com.google.devtools.build.lib.collect.nestedset.NestedSet;
+import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
+import com.google.devtools.build.lib.vfs.PathFragment;
+
+/**
+ * A {@link TransitiveInfoProvider} that supplies import directories for Python dependencies.
+ */
+@Immutable
+public final class PythonImportsProvider implements TransitiveInfoProvider {
+
+  private final NestedSet<PathFragment> transitivePythonImports;
+
+  public PythonImportsProvider(NestedSet<PathFragment> transitivePythonImports) {
+    this.transitivePythonImports = transitivePythonImports;
+  }
+
+  public NestedSet<PathFragment> getTransitivePythonImports() {
+    return transitivePythonImports;
+  }
+}