PiperOrigin-RevId: 156331430

1 files changed, 92 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/packages/BazelPackageLoader.java b/src/main/java/com/google/devtools/build/lib/skyframe/packages/BazelPackageLoader.java
new file mode 100644
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--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/packages/BazelPackageLoader.java
@@ -0,0 +1,92 @@
+// Copyright 2017 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.skyframe.packages;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.devtools.build.lib.bazel.rules.BazelRuleClassProvider;
+import com.google.devtools.build.lib.packages.PackageFactory.EnvironmentExtension;
+import com.google.devtools.build.lib.packages.RuleClassProvider;
+import com.google.devtools.build.lib.runtime.proto.InvocationPolicyOuterClass.InvocationPolicy;
+import com.google.devtools.build.lib.skyframe.LocalRepositoryLookupFunction;
+import com.google.devtools.build.lib.skyframe.PackageLookupFunction;
+import com.google.devtools.build.lib.skyframe.PackageLookupFunction.CrossRepositoryLabelViolationStrategy;
+import com.google.devtools.build.lib.skyframe.PackageLookupValue.BuildFileName;
+import com.google.devtools.build.lib.skyframe.SkyFunctions;
+import com.google.devtools.build.lib.vfs.Path;
+import com.google.devtools.build.skyframe.SkyFunction;
+import com.google.devtools.build.skyframe.SkyFunctionName;
+
+/**
+ * Concrete implementation of {@link PackageLoader} that uses skyframe under the covers, but with
+ * no caching or incrementality.
+ */
+public class BazelPackageLoader extends AbstractPackageLoader {
+  /** Returns a fresh {@link Builder} instance. */
+  public static Builder builder(Path workspaceDir) {
+    return new Builder(workspaceDir);
+  }
+
+  /** Builder for {@link BazelPackageLoader} instances. */
+  public static class Builder extends AbstractPackageLoader.Builder {
+    private Builder(Path workspaceDir) {
+      super(workspaceDir);
+    }
+
+    @Override
+    public BazelPackageLoader build() {
+      return new BazelPackageLoader(this);
+    }
+
+    @Override
+    protected RuleClassProvider getDefaultRuleClassProvider() {
+      return BazelRuleClassProvider.create();
+    }
+
+    @Override
+    protected String getDefaultDefaulsPackageContents() {
+      return BazelRuleClassProvider.create().getDefaultsPackageContent(
+          InvocationPolicy.getDefaultInstance());
+    }
+  }
+
+  private BazelPackageLoader(Builder builder) {
+    super(builder);
+  }
+
+  @Override
+  protected String getName() {
+    return "BazelPackageLoader";
+  }
+
+  @Override
+  protected ImmutableList<EnvironmentExtension> getEnvironmentExtensions() {
+    return ImmutableList.of();
+  }
+
+  @Override
+  protected PackageLookupFunction makePackageLookupFunction() {
+    return new PackageLookupFunction(
+        deletedPackagesRef,
+        CrossRepositoryLabelViolationStrategy.ERROR,
+        ImmutableList.of(BuildFileName.BUILD_DOT_BAZEL, BuildFileName.BUILD));
+  }
+
+  @Override
+  protected ImmutableMap<SkyFunctionName, SkyFunction> getExtraExtraSkyFunctions() {
+    return ImmutableMap.<SkyFunctionName, SkyFunction>of(
+        SkyFunctions.LOCAL_REPOSITORY_LOOKUP, new LocalRepositoryLookupFunction());
+    // TODO(nharmata): Add support for external repositories.
+  }
+}