Migrate indexing configuration to editor settings

lib/ruby_lsp/server.rb

@@ -243,6 +243,8 @@ def run_initialize(message)
         )
       end
 
+      process_indexing_configuration(options.dig(:initializationOptions, :indexing))
+
       begin_progress("indexing-progress", "Ruby LSP: indexing files")
     end
 
@@ -251,36 +253,14 @@ def run_initialized
       load_addons
       RubyVM::YJIT.enable if defined?(RubyVM::YJIT.enable)
 
-      indexing_config = {}
-
-      # Need to use the workspace URI, otherwise, this will fail for people working on a project that is a symlink.
-      index_path = File.join(@global_state.workspace_path, ".index.yml")
-
-      if File.exist?(index_path)
-        begin
-          indexing_config = YAML.parse_file(index_path).to_ruby
-        rescue Psych::SyntaxError => e
-          message = "Syntax error while loading configuration: #{e.message}"
-          send_message(
-            Notification.new(
-              method: "window/showMessage",
-              params: Interface::ShowMessageParams.new(
-                type: Constant::MessageType::WARNING,
-                message: message,
-              ),
-            ),
-          )
-        end
-      end
-
       if defined?(Requests::Support::RuboCopFormatter)
         @global_state.register_formatter("rubocop", Requests::Support::RuboCopFormatter.new)
       end
       if defined?(Requests::Support::SyntaxTreeFormatter)
         @global_state.register_formatter("syntax_tree", Requests::Support::SyntaxTreeFormatter.new)
       end
 
-      perform_initial_indexing(indexing_config)
+      perform_initial_indexing
       check_formatter_is_available
     end
 
@@ -766,12 +746,10 @@ def shutdown
       Addon.addons.each(&:deactivate)
     end
 
-    sig { params(config_hash: T::Hash[String, T.untyped]).void }
-    def perform_initial_indexing(config_hash)
+    sig { void }
+    def perform_initial_indexing
       # The begin progress invocation happens during `initialize`, so that the notification is sent before we are
       # stuck indexing files
-      RubyIndexer.configuration.apply_config(config_hash)
-
       Thread.new do
         begin
           RubyIndexer::RBSIndexer.new(@global_state.index).index_ruby_core
@@ -872,5 +850,46 @@ def check_formatter_is_available
         )
       end
     end
+
+    sig { params(indexing_options: T.nilable(T::Hash[Symbol, T.untyped])).void }
+    def process_indexing_configuration(indexing_options)
+      # Need to use the workspace URI, otherwise, this will fail for people working on a project that is a symlink.
+      index_path = File.join(@global_state.workspace_path, ".index.yml")
+
+      if File.exist?(index_path)
+        begin
+          RubyIndexer.configuration.apply_config(YAML.parse_file(index_path).to_ruby)
+          send_message(
+            Notification.new(
+              method: "window/showMessage",
+              params: Interface::ShowMessageParams.new(
+                type: Constant::MessageType::WARNING,
+                message: "The .index.yml configuration file is deprecated. " \
+                  "Please use editor settings to configure the index",
+              ),
+            ),
+          )
+        rescue Psych::SyntaxError => e
+          message = "Syntax error while loading configuration: #{e.message}"
+          send_message(
+            Notification.new(
+              method: "window/showMessage",
+              params: Interface::ShowMessageParams.new(
+                type: Constant::MessageType::WARNING,
+                message: message,
+              ),
+            ),
+          )
+        end
+        return
+      end
+
+      return unless indexing_options
+
+      # The index expects snake case configurations, but VS Code standardizes on camel case settings
+      RubyIndexer.configuration.apply_config(
+        indexing_options.transform_keys { |key| key.to_s.gsub(/([A-Z])/, "_\\1").downcase },
+      )
+    end
   end
 end

lsp.code-workspace

@@ -18,6 +18,9 @@
             "**/out": true,
         },
         "rubyLsp.bypassTypechecker": true,
+        "rubyLsp.excludedPatterns": [
+            "**/test/fixtures/**/*.rb"
+        ],
         "typescript.tsc.autoDetect": "off",
     }
 }

test/server_test.rb

@@ -325,18 +325,21 @@ def test_initialize_features_with_enable_all_configuration
   end
 
   def test_handles_invalid_configuration
-    FileUtils.mv(".index.yml", ".index.yml.tmp")
     File.write(".index.yml", "} invalid yaml")
 
-    @server.process_message({ method: "initialized" })
+    capture_subprocess_io do
+      @server.process_message(id: 1, method: "initialize", params: {})
+    end
+
+    @server.pop_response
     notification = @server.pop_response
     assert_equal("window/showMessage", notification.method)
     assert_match(
       /Syntax error while loading configuration/,
       T.cast(notification.params, RubyLsp::Interface::ShowMessageParams).message,
     )
   ensure
-    FileUtils.mv(".index.yml.tmp", ".index.yml")
+    FileUtils.rm(".index.yml")
   end
 
   def test_shows_error_if_formatter_set_to_rubocop_but_rubocop_not_available
@@ -462,6 +465,26 @@ def test_errors_include_telemetry_data
     assert_match("mocha/exception_raiser.rb", data[:backtrace])
   end
 
+  def test_handles_editor_indexing_settings
+    capture_io do
+      @server.process_message({
+        id: 1,
+        method: "initialize",
+        params: {
+          initializationOptions: {
+            indexing: {
+              excludedGems: ["foo_gem"],
+              includedGems: ["bar_gem"],
+            },
+          },
+        },
+      })
+    end
+
+    assert_includes(RubyIndexer.configuration.instance_variable_get(:@excluded_gems), "foo_gem")
+    assert_includes(RubyIndexer.configuration.instance_variable_get(:@included_gems), "bar_gem")
+  end
+
   private
 
   def with_uninstalled_rubocop(&block)

vscode/package.json

@@ -347,6 +347,47 @@
         "rubyLsp.rubyExecutablePath": {
           "description": "Path to the Ruby installation. This is used as a fallback if version manager activation fails",
           "type": "string"
+        },
+        "rubyLsp.indexing": {
+          "description": "Indexing configurations. Modifying these will impact which declarations are available for definition, completion and other features",
+          "type": "object",
+          "properties": {
+            "excludedPatterns": {
+              "type": "array",
+              "description": "List of glob patterns to exclude from indexing. For excluding gems, use excludedGems instead.",
+              "items": {
+                "type": "string"
+              }
+            },
+            "includedPatterns": {
+              "type": "array",
+              "description": "List of glob patterns to include when indexing. For example, Ruby files that do not have the .rb extension.",
+              "items": {
+                "type": "string"
+              }
+            },
+            "includedGems": {
+              "type": "array",
+              "description": "List of gems to include when indexing. You should only use this setting to include development gems in indexing (which are auto excluded).",
+              "items": {
+                "type": "string"
+              }
+            },
+            "excludedGems": {
+              "type": "array",
+              "description": "List of gems to exclude from indexing. For example, gems that are not intended to have their declarations referenced from the application.",
+              "items": {
+                "type": "string"
+              }
+            },
+            "excludedMagicComments": {
+              "type": "array",
+              "description": "List of magic comments that should not be considered as documentation for declarations.",
+              "items": {
+                "type": "string"
+              }
+            }
+          }
         }
       }
     },

vscode/src/client.ts

@@ -174,6 +174,7 @@ function collectClientOptions(
       featuresConfiguration: configuration.get("featuresConfiguration"),
       formatter: configuration.get("formatter"),
       linters: configuration.get("linters"),
+      indexing: configuration.get("indexing"),
     },
   };
 }