Full sync on build file changes

Author: mildagle

aspect/fast_build_info.bzl

@@ -23,6 +23,7 @@ def _fast_build_info_impl(target, ctx):
         "workspace_name": ctx.workspace_name,
         "label": stringify_label(target.label),
         "dependencies": [stringify_label(t.label) for t in dep_targets],
+        "build_file_path": ctx.build_file_path,
     }
 
     write_output = False

java/src/com/google/idea/blaze/java/fastbuild/FastBuildBlazeData.java

@@ -61,6 +61,8 @@ public abstract class FastBuildBlazeData {
 
   public abstract Optional<ProtoInfo> protoInfo();
 
+  public abstract String buildFilePath();
+
   public static Builder builder() {
     return new AutoValue_FastBuildBlazeData.Builder()
         .setDependencies(ImmutableList.of())
@@ -87,6 +89,8 @@ public abstract static class Builder {
     public abstract Builder setProtoInfo(ProtoInfo protoInfo);
 
     public abstract FastBuildBlazeData build();
+
+    public abstract Builder setBuildFilePath(String label);
   }
 
   static FastBuildBlazeData fromProto(FastBuildInfo.FastBuildBlazeData proto) {
@@ -97,7 +101,8 @@ static FastBuildBlazeData fromProto(FastBuildInfo.FastBuildBlazeData proto) {
             .setWorkspaceName(proto.getWorkspaceName())
             .setDependencies(
                 proto.getDependenciesList().stream().map(Label::fromProto).collect(toSet()))
-            .setData(convertDataToMap(proto.getDataList()));
+            .setData(convertDataToMap(proto.getDataList()))
+            .setBuildFilePath(proto.getBuildFilePath());
     if (proto.hasAndroidInfo()) {
       builder.setAndroidInfo(AndroidInfo.fromProto(proto.getAndroidInfo()));
     }

java/src/com/google/idea/blaze/java/fastbuild/FastBuildChangedFilesService.java

@@ -31,6 +31,7 @@
 import com.google.common.util.concurrent.ListenableFuture;
 import com.google.common.util.concurrent.ListeningExecutorService;
 import com.google.idea.blaze.base.model.primitives.Label;
+import com.google.idea.blaze.base.model.primitives.WorkspaceRoot;
 import com.google.idea.blaze.base.sync.data.BlazeProjectDataManager;
 import com.google.idea.blaze.base.sync.workspace.ArtifactLocationDecoder;
 import com.google.idea.blaze.java.fastbuild.FastBuildState.BuildOutput;
@@ -248,20 +249,20 @@ public void after(List<? extends VFileEvent> events) {
                           .map(File::new)
                           .collect(toImmutableSet());
 
-                  ImmutableSet<File> changedProtoFiles =
+                  ImmutableSet<File> changedNonCompilableFiles =
                       changedFilePaths.stream()
-                          .filter(f -> f.endsWith(".proto"))
+                          .filter(f -> f.endsWith(".proto") || f.endsWith(".bazel"))
                           .map(File::new)
                           .collect(toImmutableSet());
 
                   // TODO(b/145386688): Access should be guarded by enclosing instance
                   // 'com.google.idea.blaze.java.fastbuild.FastBuildChangedFilesService' of 'data',
                   // which is not accessible in this scope
 
-                  if (!changedCompilableFiles.isEmpty() || !changedProtoFiles.isEmpty()) {
+                  if (!changedCompilableFiles.isEmpty() || !changedNonCompilableFiles.isEmpty()) {
                     labelData.values()
                         .forEach(data -> data.updateChangedSources(changedCompilableFiles,
-                            changedProtoFiles));
+                            changedNonCompilableFiles));
                   }
 
                   return null;
@@ -309,6 +310,9 @@ private ImmutableSet<File> getSourceFilesRecursively(
     Set<File> sourceFiles = new HashSet<>();
     ArtifactLocationDecoder decoder =
         projectDataManager.getBlazeProjectData().getArtifactLocationDecoder();
+
+    String workSpaceRootPath = WorkspaceRoot.fromProject(project).directory().getAbsolutePath();
+
     SuccessorsFunction<FastBuildBlazeData> graph = l -> getDependencies(blazeData, l);
     Traverser.forGraph(graph)
         .breadthFirst(data)
@@ -319,15 +323,24 @@ private ImmutableSet<File> getSourceFilesRecursively(
                     .map(decoder::decode)
                     .filter(f -> f.getName().endsWith(".java") || f.getName().endsWith(".scala"))
                     .forEach(sourceFiles::add);
+                addBuildFile(sourceFiles, workSpaceRootPath, d.buildFilePath());
               } else if (d.protoInfo().isPresent()) {
                 d.protoInfo().get().sources().stream()
                     .map(decoder::decode)
                     .forEach(sourceFiles::add);
+                addBuildFile(sourceFiles, workSpaceRootPath, d.buildFilePath());
               }
             });
     return ImmutableSet.copyOf(sourceFiles);
   }
 
+  private static void addBuildFile(Set<File> sourceFiles ,String workSpaceRootPath, String buildFilePath) {
+    File buildFile = new File(workSpaceRootPath, buildFilePath);
+    if (buildFile.exists()) {
+      sourceFiles.add(buildFile);
+    }
+  }
+
   private static ImmutableSet<FastBuildBlazeData> getDependencies(
       Map<Label, FastBuildBlazeData> map, FastBuildBlazeData labelData) {
     return labelData.dependencies().stream()

proto/fast_build_info.proto

@@ -30,6 +30,7 @@ message FastBuildBlazeData {
   JavaInfo java_info = 6;
   JavaToolchainInfo java_toolchain_info = 7;
   ProtoInfo proto_info = 8;
+  string build_file_path = 9;
 }
 
 message Data {