ls

ls.rb

@@ -1,40 +1,39 @@
 # frozen_string_literal: true
 
 COLUMNS = 3
-files = []
 
-def run(files)
-  served_files = serve_files(files)
-  sliced_files = slice_files(served_files)
-  filled_files = fill_files(sliced_files)
-  arrange_files(filled_files)
+def run
+  listed_filenames = list_filenames
+  filenames_matrix = slice_filenames(listed_filenames)
+  filled_filenames = fill_filenames(filenames_matrix)
+  arrange_filenames(filled_filenames)
 end
 
-def serve_files(_files)
+def list_filenames
   Dir.glob('*')
 end
 
-def slice_files(served_files)
-  columns_size = served_files.size.ceildiv(COLUMNS)
-  served_files.each_slice(columns_size).to_a
+def slice_filenames(listed_filenames)
+  columns_size = listed_filenames.size.ceildiv(COLUMNS)
+  listed_filenames.each_slice(columns_size).to_a
 end
 
-def fill_files(sliced_files)
-  array_size = sliced_files.map(&:size).max
-  sliced_files.each do |slice|
+def fill_filenames(filenames_matrix)
+  array_size = filenames_matrix.map(&:size).max
+  filenames_matrix.each do |slice|
     slice << '' while slice.size < array_size
   end
-  sliced_files.transpose
+  filenames_matrix.transpose
 end
 
-def arrange_files(filled_files)
-  string_count = filled_files.flatten.map(&:size).max
-  filled_files.each do |arrange|
+def arrange_filenames(filled_filenames)
+  filenames_count = filled_filenames.flatten.map(&:size).max
+  filled_filenames.each do |arrange|
     arrange.each do |arranged|
-      print arranged.ljust(string_count + 5)
+      print arranged.ljust(filenames_count + 5)
     end
     puts
   end
 end
 
-run(files)
+run