Scenario:
I have a function that downloads the zipped code from aws s3-bucket. Extracts the zip file in a temp folder and then modifies few files from the extracted zip file and create a zip after modification. Later when I try to delete the temp folder it throws me "The process cannot access the file because it is being used by another process."
(NOTE: everything takes place in the same process meaning in the same function).
After carefully looking the code found in the below code
def writeEntries(entries, path, io)

entries.each { |e|
  zipFilePath = path == "" ? e : File.join(path, e)
  diskFilePath = File.join(@inputDir, zipFilePath)
  puts "Deflating " + diskFilePath
  if  File.directory?(diskFilePath)
    io.mkdir(zipFilePath)
    subdir =Dir.entries(diskFilePath); subdir.delete("."); subdir.delete("..")
    writeEntries(subdir, zipFilePath, io)
  else
    io.get_output_stream(zipFilePath) { |f| f.puts(File.open(diskFilePath, "rb").read())}
  end
}

end
In line io.get_output_stream(zipFilePath) { |f| f.puts(File.open(diskFilePath, "rb").read())}, the file is opened but not closed.

Solution :
So I modified the above line of code as follows:

disk_file = File.open(diskFilePath, "rb")
io.get_output_stream(zipFilePath) { |f|
f.puts(disk_file.read())
}
disk_file.close

and was successfully able to delete the temp folder.
Would be great if the modification can be included in the file.

Thanks,
Zaid