Cleanup: introduce some static strings into PubRoot (#7844)

Author: jwren

flutter-idea/src/io/flutter/pub/PubRoot.java

@@ -6,10 +6,9 @@
 package io.flutter.pub;
 
 import com.intellij.openapi.actionSystem.AnActionEvent;
-import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.actionSystem.CommonDataKeys;
 import com.intellij.openapi.actionSystem.LangDataKeys;
-import com.intellij.openapi.diagnostic.Logger;
+import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.module.Module;
 import com.intellij.openapi.module.ModuleManager;
 import com.intellij.openapi.project.Project;
@@ -34,10 +33,11 @@
  * That is, a directory containing (at a minimum) a pubspec.yaml file.
  */
 public class PubRoot {
+  public static final String ANALYSIS_OPTIONS_YAML = "analysis_options.yaml";
+  public static final String DOT_DART_TOOL = ".dart_tool";
+  public static final String DOT_PACKAGES = ".packages";
   public static final String PUBSPEC_YAML = "pubspec.yaml";
 
-  private static final Logger LOG = Logger.getInstance(PubRoot.class);
-
   @NotNull
   private final VirtualFile root;
 
@@ -176,7 +176,7 @@ public String getRelativePath(@NotNull VirtualFile file) {
     return path.substring(root.length() + 1);
   }
 
-  private static final String /*@NotNull*/ [] TEST_DIRS = new String[] { // TODO 2022.1
+  private static final String /*@NotNull*/[] TEST_DIRS = new String[]{ // TODO 2022.1
     "/test/",
     "/integration_test/",
     "/test_driver/",
@@ -266,7 +266,7 @@ public boolean isNonEditableFlutterModule() {
 
   @Nullable
   public VirtualFile getPackageConfigFile() {
-    final VirtualFile tools = root.findChild(".dart_tool");
+    final VirtualFile tools = root.findChild(DOT_DART_TOOL);
     if (tools == null || !tools.isDirectory()) {
       return null;
     }
@@ -280,7 +280,7 @@ public VirtualFile getPackageConfigFile() {
   @Nullable
   public VirtualFile getPackagesFile() {
     // Obsolete by Flutter 2.0
-    final VirtualFile packages = root.findChild(".packages");
+    final VirtualFile packages = root.findChild(DOT_PACKAGES);
     if (packages != null && !packages.isDirectory()) {
       return packages;
     }

flutter-idea/src/io/flutter/run/MainFile.java

@@ -137,8 +137,8 @@ private static boolean isAppDir(@NotNull VirtualFile dir, @NotNull Project proje
     assert(!WorkspaceCache.getInstance(project).isBazel());
     return dir.isDirectory() && (
       dir.findChild(PubRoot.PUBSPEC_YAML) != null ||
-      dir.findChild(".dart_tool") != null ||
-      dir.findChild(".packages") != null
+      dir.findChild(PubRoot.DOT_DART_TOOL) != null ||
+      dir.findChild(PubRoot.DOT_PACKAGES) != null
     );
   }
 

flutter-idea/testSrc/unit/io/flutter/ide/FlutterCodeInsightFixtureTestCase.java

@@ -41,7 +41,7 @@ public void setUp() throws Exception {
           final VirtualFile contentRoot = allContentRoots[0];
           final VirtualFile pubspec = contentRoot.createChildData(this, PubRoot.PUBSPEC_YAML);
           pubspec.setBinaryContent(SamplePubspec.getBytes(StandardCharsets.UTF_8));
-          final VirtualFile dartTool = contentRoot.createChildDirectory(this, ".dart_tool");
+          final VirtualFile dartTool = contentRoot.createChildDirectory(this, PubRoot.DOT_DART_TOOL);
           final VirtualFile config = dartTool.createChildData(this, "package_config.json");
           config.setBinaryContent(SampleConfig.getBytes(StandardCharsets.UTF_8));
         }
@@ -58,15 +58,16 @@ public void tearDown() throws Exception {
       final VirtualFile root = Objects.requireNonNull(ModuleRootManager.getInstance(getModule())).getContentRoots()[0];
       assert root != null;
       final VirtualFile pubspec = root.findChild(PubRoot.PUBSPEC_YAML);
-      final VirtualFile dartTool = root.findChild(".dart_tool");
+      final VirtualFile dartTool = root.findChild(PubRoot.DOT_DART_TOOL);
       if (pubspec != null && dartTool != null) {
         final VirtualFile config = dartTool.findChild("package_config.json");
         WriteAction.run(() -> {
           pubspec.delete(this);
           if (config != null) config.delete(this);
           dartTool.delete(this);
         });
-        final List<String> toUnexclude = Arrays.asList(root.getUrl() + "/build", root.getUrl() + "/.pub", root.getUrl() + "/.dart_tool");
+        final List<String> toUnexclude =
+          Arrays.asList(root.getUrl() + "/build", root.getUrl() + "/.pub", root.getUrl() + "/" + PubRoot.DOT_DART_TOOL);
         ModuleRootModificationUtil.updateExcludedFolders(getModule(), root, toUnexclude, Collections.emptyList());
       }
     }