Initial checkin of Python rules into Bazel.

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MOS_MIGRATED_REVID=89123900

1 files changed, 62 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/rules/python/PythonSemantics.java b/src/main/java/com/google/devtools/build/lib/rules/python/PythonSemantics.java
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+// Copyright 2014 Google Inc. 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.RuleContext;
+import com.google.devtools.build.lib.analysis.Runfiles;
+import com.google.devtools.build.lib.analysis.RunfilesSupport;
+import com.google.devtools.build.lib.rules.cpp.CcLinkParamsStore;
+import com.google.devtools.build.lib.rules.test.InstrumentedFilesCollector.InstrumentationSpec;
+
+/**
+ * Pluggable semantics for Python rules.
+ *
+ * <p>A new instance of this class is created for each configured target, therefore, it is allowed
+ * to keep state.
+ */
+public interface PythonSemantics {
+  /**
+   * Called at the beginning of the analysis of {@code py_binary} rules to validate its attributes.
+   */
+  void validate(RuleContext ruleContext, PyCommon common);
+
+  /**
+   * Extends for the default and data runfiles of {@code py_binary} rules with custom elements.
+   */
+  void collectRunfilesForBinary(RuleContext ruleContext, Runfiles.Builder builder, PyCommon common);
+
+ /**
+   * Extends the default runfiles of {@code py_binary} rules with custom elements.
+   */
+  void collectDefaultRunfilesForBinary(RuleContext ruleContext, Runfiles.Builder builder);
+
+  /**
+   * Returns the coverage instrumentation specification to be used in Python rules.
+   */
+  InstrumentationSpec getCoverageInstrumentationSpec();
+
+  /**
+   * Create the actual executable artifact.
+   *
+   * <p>This should create a generating action for {@code common.getExecutable()}.
+   */
+  void createExecutable(RuleContext ruleContext, PyCommon common,
+      CcLinkParamsStore ccLinkParamsStore);
+
+  /**
+   * Called at the end of the analysis of {@code py_binary} rules.
+   */
+  void postInitBinary(RuleContext ruleContext, RunfilesSupport runfilesSupport,
+      PyCommon common);
+}
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