CODEWITHSUNDEEP
ruby
Darryl
Darryl

Reputation: 59

Is there an easier way to insert a time stamp into a file name with Ruby?

Is there an easier way to insert a time stamp in a file name ?

def time_stamped_file(file)
  file.gsub(/\./,"_" + Time.now.strftime("%m-%d_%H-%M-%S") + '.') 
end

f = "test.txt"
puts time_stamped_file(f) 


=> test_01-24_12-56-33.txt

Upvotes: 5

Views: 10930

Answers (4)

Orlando Reyes
Orlando Reyes

Reputation: 41

What about this? It worked for me.

time = Time.now
puts time.strftime("%m-%d-%Y.%H.%M.%S")

Upvotes: 3

stef
stef

Reputation: 14268

If you're just trying to create a uniquely named file and it doesn't have to contain the original filename, you could use the built-in Tempfile class:

require 'tempfile'

file = Tempfile.new('test')
file.path
#=> "/var/folders/bz/j5rz8c2n379949sxn9gwn9gr0000gn/T/test20130124-72354-cwohwv"

Upvotes: 2

jake
jake

Reputation: 2411

If you want a shorter approach you (and dont care particularly about the accuracy of the the timestamp) you could adopt an approach similar to Paperclip as mention in the below SO post.

Paperclip - How do they create the timestamp appended to the file name?

Upvotes: 1

Ryan McGeary
Ryan McGeary

Reputation: 240044

Not necessarily "easier," but here's a slightly more canonical and robust way to do it:

def timestamp_filename(file)
  dir  = File.dirname(file)
  base = File.basename(file, ".*")
  time = Time.now.to_i  # or format however you like
  ext  = File.extname(file)
  File.join(dir, "#{base}_#{time}#{ext}")
end

timestamp_filename("test.txt")     # => "./test_1359052544.txt"
timestamp_filename("test")         # => "./test_1359052544"
timestamp_filename("dir/test.csv") # => "dir/test_1359052544.csv"

Upvotes: 10

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