GH-48776: [CI][Ruby][Windows] Ensure removing temporary files

Author: kou

c_glib/parquet-glib/arrow-file-reader.cpp

@@ -181,6 +181,24 @@ gparquet_arrow_file_reader_new_path(const gchar *path, GError **error)
   }
 }
 
+/**
+ * gparquet_arrow_file_reader_close:
+ * @reader: A #GParquetArrowFileReader.
+ *
+ * Close the reader.
+ *
+ * Since: 23.0.0
+ */
+void
+gparquet_arrow_file_reader_close(GParquetArrowFileReader *reader)
+{
+  auto parquet_arrow_file_reader = gparquet_arrow_file_reader_get_raw(reader);
+  auto parquet_reader = parquet_arrow_file_reader->parquet_reader();
+  if (parquet_reader) {
+    parquet_reader->Close();
+  }
+}
+
 /**
  * gparquet_arrow_file_reader_read_table:
  * @reader: A #GParquetArrowFileReader.

c_glib/parquet-glib/arrow-file-reader.h

@@ -43,6 +43,10 @@ GPARQUET_AVAILABLE_IN_0_11
 GParquetArrowFileReader *
 gparquet_arrow_file_reader_new_path(const gchar *path, GError **error);
 
+GPARQUET_AVAILABLE_IN_23_0
+void
+gparquet_arrow_file_reader_close(GParquetArrowFileReader *reader);
+
 GPARQUET_AVAILABLE_IN_0_11
 GArrowTable *
 gparquet_arrow_file_reader_read_table(GParquetArrowFileReader *reader, GError **error);

ruby/red-arrow/test/test-feather.rb

@@ -29,6 +29,7 @@ def setup
     begin
       yield(@output)
     ensure
+      GC.start # Ensure freeing Arrow::Table that refers @output.path.
       @output.close!
     end
   end

ruby/red-arrow/test/test-record-batch-stream-reader.rb

@@ -16,6 +16,10 @@
 # under the License.
 
 class RecordBatchStreamReaderTest < Test::Unit::TestCase
+  def teardown
+    GC.start # Ensure freeing Arrow::RecordBatch that refers tempfile.path.
+  end
+
   test("write/read") do
     fields = [
       Arrow::Field.new("uint8",  :uint8),

ruby/red-arrow/test/test-table.rb

@@ -747,6 +747,10 @@ def create_output(extension)
           @file.path
         end
 
+        def teardown
+          GC.start # Ensure freeing Arrow::Table that refers @file.path.
+        end
+
         sub_test_case("save: auto detect") do
           test("arrow") do
             output = create_output(".arrow")

ruby/red-parquet/lib/parquet/arrow-file-reader.rb

@@ -17,6 +17,8 @@
 
 module Parquet
   class ArrowFileReader
+    include Arrow::BlockClosable
+
     def each_row_group
       return to_enum(__method__) {n_row_groups} unless block_given?
 

ruby/red-parquet/test/test-arrow-table.rb

@@ -50,6 +50,7 @@ def setup
     begin
       yield(@output)
     ensure
+      GC.start # Ensure freeing Arrow::Table that refers @output.path.
       @output.close!
     end
   end

ruby/red-parquet/test/test-boolean-statistics.rb

@@ -24,8 +24,10 @@ def setup
     chunk_size = 1024
     writer.write_table(table, chunk_size)
     writer.close
-    reader = Parquet::ArrowFileReader.new(file.path)
-    @statistics = reader.metadata.get_row_group(0).get_column_chunk(0).statistics
+    Parquet::ArrowFileReader.open(file.path) do |reader|
+      @statistics =
+        reader.metadata.get_row_group(0).get_column_chunk(0).statistics
+    end
   end
 
   def test_min