Support blazerc section in project view

PiperOrigin-RevId: 553927607

base/src/com/google/idea/blaze/base/projectview/section/sections/BuildConfigSection.java

@@ -0,0 +1,79 @@
+/*
+ * Copyright 2023 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.idea.blaze.base.projectview.section.sections;
+
+import com.google.idea.blaze.base.model.primitives.WorkspacePath;
+import com.google.idea.blaze.base.projectview.parser.ParseContext;
+import com.google.idea.blaze.base.projectview.parser.ProjectViewParser;
+import com.google.idea.blaze.base.projectview.section.ScalarSection;
+import com.google.idea.blaze.base.projectview.section.ScalarSectionParser;
+import com.google.idea.blaze.base.projectview.section.SectionKey;
+import com.google.idea.blaze.base.projectview.section.SectionParser;
+import java.io.File;
+import javax.annotation.Nullable;
+
+/** A section to specify build-system's configuration file. */
+public final class BuildConfigSection {
+  public static final SectionKey<WorkspacePath, ScalarSection<WorkspacePath>> KEY =
+      SectionKey.of("build_config_file");
+  public static final SectionParser PARSER = new BuildConfigSectionParser();
+
+  private static class BuildConfigSectionParser extends ScalarSectionParser<WorkspacePath> {
+    public BuildConfigSectionParser() {
+      super(KEY, ':');
+    }
+
+    @Nullable
+    @Override
+    protected WorkspacePath parseItem(
+        ProjectViewParser parser, ParseContext parseContext, String text) {
+      String error = WorkspacePath.validate(text);
+      if (error != null) {
+        parseContext.addError(error);
+        return null;
+      }
+
+      WorkspacePath workspacePath = new WorkspacePath(text);
+      if (parser.isRecursive()) {
+        File rcFile = parseContext.getWorkspacePathResolver().resolveToFile(workspacePath);
+        if (rcFile == null || !rcFile.exists()) {
+          parseContext.addError(
+              String.format(
+                  "Could not resolve the build configuration file: %s",
+                  workspacePath.relativePath()));
+        }
+      }
+      return workspacePath;
+    }
+
+    @Override
+    protected void printItem(StringBuilder sb, WorkspacePath section) {
+      sb.append(section);
+    }
+
+    @Override
+    public ItemType getItemType() {
+      return ItemType.FileItem;
+    }
+
+    @Override
+    public String quickDocs() {
+      return "Specifies build configuration file for the remote build services";
+    }
+  }
+
+  private BuildConfigSection() {}
+}

base/src/com/google/idea/blaze/base/projectview/section/sections/Sections.java

@@ -43,7 +43,8 @@ public class Sections {
           RunConfigurationsSection.PARSER,
           ShardBlazeBuildsSection.PARSER,
           TargetShardSizeSection.PARSER,
-          BazelBinarySection.PARSER);
+          BazelBinarySection.PARSER,
+          BuildConfigSection.PARSER);
 
   public static List<SectionParser> getParsers() {
     List<SectionParser> parsers = Lists.newArrayList(PARSERS);

base/tests/unittests/com/google/idea/blaze/base/projectview/ProjectViewSetTest.java

@@ -33,6 +33,7 @@
 import com.google.idea.blaze.base.projectview.section.sections.AdditionalLanguagesSection;
 import com.google.idea.blaze.base.projectview.section.sections.AutomaticallyDeriveTargetsSection;
 import com.google.idea.blaze.base.projectview.section.sections.BazelBinarySection;
+import com.google.idea.blaze.base.projectview.section.sections.BuildConfigSection;
 import com.google.idea.blaze.base.projectview.section.sections.BuildFlagsSection;
 import com.google.idea.blaze.base.projectview.section.sections.DirectoryEntry;
 import com.google.idea.blaze.base.projectview.section.sections.DirectorySection;
@@ -107,6 +108,9 @@ public void testProjectViewSetSerializable() {
                     .add(
                         ScalarSection.builder(BazelBinarySection.KEY)
                             .set(new File("/bazel/path/override")))
+                    .add(
+                        ScalarSection.builder(BuildConfigSection.KEY)
+                            .set(new WorkspacePath("test")))
                     .build())
             .build();