CODEWITHSUNDEEP
ruby-on-rails
user2534381
user2534381

Reputation: 225

ruby Temporary files inside temporary directory

I want to create temporary files inside temporary directory. below is my code for this.

           require 'tmpdir'
           require 'tempfile'
           Dir.mktmpdir do |dir|
             Dir.chdir(dir)
             TemFile.new("f")
             sleep 20
           end

It gives me this exception: Errno::EACCES: Permission denied - C:/Users/SANJAY~1/AppData/Local/Temp/d20130724-5600-ka2ame , because ruby is trying to delete a temp directory, which is not empty.

Please help me to create a temp file inside temp directory.

Upvotes: 6

Views: 8061

Answers (2)

jane mason
jane mason

Reputation: 41

Hi I created the temporary directory with the prefix "foo" and the tempfile with the prefix cats

dir = Dir.mktmpdir('foo')
begin      
  puts('Directory path:'+ dir) #Here im printing the path of the temporary directory

  # Creating the tempfile and giving as parameters the prefix 'cats' and 
  # the second parameter is the tempdirectory
  tempfile = Tempfile.new('cats', [tmpdir = dir]) 

  puts('File path:'+ tempfile.path)  #Here im printing the path of the tempfile
  tempfile.write("hello world")
  tempfile.rewind
  tempfile.read      # => "hello world"
  tempfile.close
  tempfile.unlink   
ensure
  # remove the directory.
  FileUtils.remove_entry dir
end

And since we print the paths on console we can get the following 

Directory path: /tmp/foo20181116-9699-1o7jc6x
File path:  /tmp/foo20181116-9699-1o7jc6x/cats20181116-9699-7ofv1c

Upvotes: 2

messivanio
messivanio

Reputation: 2311

You should use the Tempfile class.

require 'tempfile'

file = Tempfile.new('foo')
file.path      # => A unique filename in the OS's temp directory,
               #    e.g.: "/tmp/foo.24722.0"
               #    This filename contains 'foo' in its basename.
file.write("hello world")
file.rewind
file.read      # => "hello world"
file.close
file.unlink    # deletes the temp file

To create temporary folders, you can use Dir.mktmpdir.

Upvotes: -1

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