File:copytask(filename, [function]) method
Copies the file to a new one with the specified filename, asynchronously (without blocking program execution flow)
Parameters
filename
A string representing the destination filename.
If the filename contains a path, the path must already exist. If the destination file exists, the function will fail.
[function]
An optional callback function that will be called periodically during the copy operation to get progress information. This function takes two parameters :
- The first argument is the total bytes to be copied
- The second argument is the number of bytes that have been copied
Return value
Returns a Task that will return aboolean value indicating if the operation succeeded.
Example
local console = require "console"
local file = sys.File("big_video.mkv")
file.step = 0
local function progress(total, done)
local percentage = (done*100)/total
if percentage / 10 > file.step then
file.step = percentage / 10 + 1;
console.write("■")
end
end
console.write("Copying file... ")
file:copy("big_video_copy.mkv", progress):wait()