Rely always on workspace URI instead of Dir.pwd

lib/ruby_indexer/lib/ruby_indexer/configuration.rb

@@ -16,15 +16,24 @@ class Configuration
       T::Hash[String, T.untyped],
     )
 
+    sig { params(workspace_path: String).void }
+    attr_writer :workspace_path
+
     sig { void }
     def initialize
+      @workspace_path = T.let(Dir.pwd, String)
       @excluded_gems = T.let(initial_excluded_gems, T::Array[String])
       @included_gems = T.let([], T::Array[String])
-      @excluded_patterns = T.let([File.join("**", "*_test.rb"), File.join("**", "tmp", "**", "*")], T::Array[String])
+      @excluded_patterns = T.let([File.join("**", "*_test.rb"), File.join("tmp", "**", "*")], T::Array[String])
+
       path = Bundler.settings["path"]
-      @excluded_patterns << File.join(File.expand_path(path, Dir.pwd), "**", "*.rb") if path
+      if path
+        # Substitute Windows backslashes into forward slashes, which are used in glob patterns
+        glob = path.gsub(/[\\]+/, "/")
+        @excluded_patterns << File.join(glob, "**", "*.rb")
+      end
 
-      @included_patterns = T.let([File.join(Dir.pwd, "**", "*.rb")], T::Array[String])
+      @included_patterns = T.let([File.join("**", "*.rb")], T::Array[String])
       @excluded_magic_comments = T.let(
         [
           "frozen_string_literal:",
@@ -55,12 +64,12 @@ def indexables
       indexables = @included_patterns.flat_map do |pattern|
         load_path_entry = T.let(nil, T.nilable(String))
 
-        Dir.glob(pattern, File::FNM_PATHNAME | File::FNM_EXTGLOB).map! do |path|
+        Dir.glob(File.join(@workspace_path, pattern), File::FNM_PATHNAME | File::FNM_EXTGLOB).map! do |path|
           path = File.expand_path(path)
           # All entries for the same pattern match the same $LOAD_PATH entry. Since searching the $LOAD_PATH for every
           # entry is expensive, we memoize it until we find a path that doesn't belong to that $LOAD_PATH. This happens
-          # on repositories that define multiple gems, like Rails. All frameworks are defined inside the Dir.pwd, but
-          # each one of them belongs to a different $LOAD_PATH entry
+          # on repositories that define multiple gems, like Rails. All frameworks are defined inside the current
+          # workspace directory, but each one of them belongs to a different $LOAD_PATH entry
           if load_path_entry.nil? || !path.start_with?(load_path_entry)
             load_path_entry = $LOAD_PATH.find { |load_path| path.start_with?(load_path) }
           end
@@ -69,9 +78,19 @@ def indexables
         end
       end
 
+      # If the patterns are relative, we make it relative to the workspace path. If they are absolute, then we shouldn't
+      # concatenate anything
+      excluded_patterns = @excluded_patterns.map do |pattern|
+        if File.absolute_path?(pattern)
+          pattern
+        else
+          File.join(@workspace_path, pattern)
+        end
+      end
+
       # Remove user specified patterns
       indexables.reject! do |indexable|
-        @excluded_patterns.any? do |pattern|
+        excluded_patterns.any? do |pattern|
           File.fnmatch?(pattern, indexable.full_path, File::FNM_PATHNAME | File::FNM_EXTGLOB)
         end
       end
@@ -122,7 +141,7 @@ def indexables
         # When working on a gem, it will be included in the locked_gems list. Since these are the project's own files,
         # we have already included and handled exclude patterns for it and should not re-include or it'll lead to
         # duplicates or accidentally ignoring exclude patterns
-        next if spec.full_gem_path == Dir.pwd
+        next if spec.full_gem_path == @workspace_path
 
         indexables.concat(
           spec.require_paths.flat_map do |require_path|
@@ -185,7 +204,7 @@ def initial_excluded_gems
       # If the dependency is prerelease, `to_spec` may return `nil` due to a bug in older version of Bundler/RubyGems:
       # https://github.com/Shopify/ruby-lsp/issues/1246
       this_gem = Bundler.definition.dependencies.find do |d|
-        d.to_spec&.full_gem_path == Dir.pwd
+        d.to_spec&.full_gem_path == @workspace_path
       rescue Gem::MissingSpecError
         false
       end

lib/ruby_indexer/test/configuration_test.rb

@@ -7,10 +7,12 @@ module RubyIndexer
   class ConfigurationTest < Minitest::Test
     def setup
       @config = Configuration.new
+      @workspace_path = File.expand_path(File.join("..", "..", ".."), __dir__)
+      @config.workspace_path = @workspace_path
     end
 
     def test_load_configuration_executes_configure_block
-      @config.apply_config({ "excluded_patterns" => ["**/test/fixtures/**/*.rb"] })
+      @config.apply_config({ "excluded_patterns" => ["**/fixtures/**/*.rb"] })
       indexables = @config.indexables
 
       assert(indexables.none? { |indexable| indexable.full_path.include?("test/fixtures") })
@@ -25,7 +27,7 @@ def test_indexables_have_expanded_full_paths
       indexables = @config.indexables
 
       # All paths should be expanded
-      assert(indexables.none? { |indexable| indexable.full_path.start_with?("lib/") })
+      assert(indexables.all? { |indexable| File.absolute_path?(indexable.full_path) })
     end
 
     def test_indexables_only_includes_gem_require_paths
@@ -71,17 +73,20 @@ def test_indexables_avoids_duplicates_if_bundle_path_is_inside_project
       Bundler.settings.temporary(path: "vendor/bundle") do
         config = Configuration.new
 
-        assert_includes(config.instance_variable_get(:@excluded_patterns), "#{Dir.pwd}/vendor/bundle/**/*.rb")
+        assert_includes(config.instance_variable_get(:@excluded_patterns), "vendor/bundle/**/*.rb")
       end
     end
 
     def test_indexables_does_not_include_gems_own_installed_files
       indexables = @config.indexables
+      indexables_inside_bundled_lsp = indexables.select do |indexable|
+        indexable.full_path.start_with?(Bundler.bundle_path.join("gems", "ruby-lsp").to_s)
+      end
 
-      assert(
-        indexables.none? do |indexable|
-          indexable.full_path.start_with?(Bundler.bundle_path.join("gems", "ruby-lsp").to_s)
-        end,
+      assert_empty(
+        indexables_inside_bundled_lsp,
+        "Indexables should not include files from the gem currently being worked on. " \
+          "Included: #{indexables_inside_bundled_lsp.map(&:full_path)}",
       )
     end
 
@@ -126,5 +131,34 @@ def test_magic_comments_regex
         assert_match(regex, comment)
       end
     end
+
+    def test_indexables_respect_given_workspace_path
+      Dir.mktmpdir do |dir|
+        FileUtils.mkdir(File.join(dir, "ignore"))
+        FileUtils.touch(File.join(dir, "ignore", "file0.rb"))
+        FileUtils.touch(File.join(dir, "file1.rb"))
+        FileUtils.touch(File.join(dir, "file2.rb"))
+
+        @config.apply_config({ "excluded_patterns" => ["ignore/**/*.rb"] })
+        @config.workspace_path = dir
+        indexables = @config.indexables
+
+        assert(indexables.none? { |indexable| indexable.full_path.start_with?(File.join(dir, "ignore")) })
+
+        # After switching the workspace path, all indexables will be found in one of these places:
+        # - The new workspace path
+        # - The Ruby LSP's own code (because Bundler is requiring the dependency from source)
+        # - Bundled gems
+        # - Default gems
+        assert(
+          indexables.all? do |i|
+            i.full_path.start_with?(dir) ||
+            i.full_path.start_with?(File.join(Dir.pwd, "lib")) ||
+            i.full_path.start_with?(Bundler.bundle_path.to_s) ||
+            i.full_path.start_with?(RbConfig::CONFIG["rubylibdir"])
+          end,
+        )
+      end
+    end
   end
 end

lib/ruby_lsp/listeners/definition.rb

@@ -250,7 +250,7 @@ def handle_require_definition(node, message)
         when :require_relative
           required_file = "#{node.content}.rb"
           path = @uri.to_standardized_path
-          current_folder = path ? Pathname.new(CGI.unescape(path)).dirname : Dir.pwd
+          current_folder = path ? Pathname.new(CGI.unescape(path)).dirname : @global_state.workspace_path
           candidate = File.expand_path(File.join(current_folder, required_file))
 
           @response_builder << Interface::Location.new(

lib/ruby_lsp/server.rb

@@ -1000,10 +1000,10 @@ def process_indexing_configuration(indexing_options)
 
       return unless indexing_options
 
+      configuration = @global_state.index.configuration
+      configuration.workspace_path = @global_state.workspace_path
       # The index expects snake case configurations, but VS Code standardizes on camel case settings
-      @global_state.index.configuration.apply_config(
-        indexing_options.transform_keys { |key| key.to_s.gsub(/([A-Z])/, "_\\1").downcase },
-      )
+      configuration.apply_config(indexing_options.transform_keys { |key| key.to_s.gsub(/([A-Z])/, "_\\1").downcase })
     end
   end
 end

lib/ruby_lsp/setup_bundler.rb

@@ -43,7 +43,7 @@ def initialize(project_path, **options)
       @gemfile_name = T.let(@gemfile&.basename&.to_s || "Gemfile", String)
 
       # Custom bundle paths
-      @custom_dir = T.let(Pathname.new(".ruby-lsp").expand_path(Dir.pwd), Pathname)
+      @custom_dir = T.let(Pathname.new(".ruby-lsp").expand_path(@project_path), Pathname)
       @custom_gemfile = T.let(@custom_dir + @gemfile_name, Pathname)
       @custom_lockfile = T.let(@custom_dir + (@lockfile&.basename || "Gemfile.lock"), Pathname)
       @lockfile_hash_path = T.let(@custom_dir + "main_lockfile_hash", Pathname)
@@ -183,14 +183,14 @@ def run_bundle_install(bundle_gemfile = @gemfile)
       # `.ruby-lsp` folder, which is not the user's intention. For example, if the path is configured as `vendor`, we
       # want to install it in the top level `vendor` and not `.ruby-lsp/vendor`
       path = Bundler.settings["path"]
-      expanded_path = File.expand_path(path, Dir.pwd) if path
+      expanded_path = File.expand_path(path, @project_path) if path
 
       # Use the absolute `BUNDLE_PATH` to prevent accidentally creating unwanted folders under `.ruby-lsp`
       env = {}
       env["BUNDLE_GEMFILE"] = bundle_gemfile.to_s
       env["BUNDLE_PATH"] = expanded_path if expanded_path
 
-      local_config_path = File.join(Dir.pwd, ".bundle")
+      local_config_path = File.join(@project_path, ".bundle")
       env["BUNDLE_APP_CONFIG"] = local_config_path if Dir.exist?(local_config_path)
 
       # If `ruby-lsp` and `debug` (and potentially `ruby-lsp-rails`) are already in the Gemfile, then we shouldn't try

sorbet/rbi/shims/file.rbi

@@ -0,0 +1,8 @@
+# typed: true
+
+class File
+  class << self
+    sig { params(path: String).returns(T::Boolean) }
+    def absolute_path?(path); end
+  end
+end