CODEWITHSUNDEEP
ruby
Eddie Greathouse
Eddie Greathouse

Reputation: 185

How to delete multiple named files in Ruby

I am attempting to write a method in Ruby that deletes several named files and directories. Here is my method:

def cleanup_all_files
   files = ['*.bat', '*.sh', 'lib/*.jar']
   directories = %w[ data archive report log ]
   files.each do |f|
      File.delete(files[f])
   end
   directories.each do |d|
      FileUtils.rm_rf(directories[d])
   end
end

This results in the following error:

TypeError: no implicit conversion of String into Integer

Upvotes: 0

Views: 791

Answers (1)

spickermann
spickermann

Reputation: 106782

files.each do |f| already yields the element. Therefore calling files[f] does not make sense. But at the same time File.delete cannot handle patterns, it expects a specific file names. Find all files matching a pattern with Dir.glob:

def cleanup_all_files
  file_patterns = ['*.bat', '*.sh', 'lib/*.jar']
  directory_patterns = %w[ data archive report log ]

  file_patterns.each do |p|
    Dir.glob(p) { |f| File.delete(f) }
  end

  directory_patterns do |p|
    Dir.glob(p) { |d| FileUtils.rm_rf(d) }
  end
end

Upvotes: 4

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