[Feature Request] date format in path_prefix

I want to output files by embulk everyday and add datetime in output files. For example, I want the output file name to be sample_20180530.csv when I execute embulk on March 30, 2018, but there’s no function in current embulk.

Here is example yaml:

in:
  ....
out:
  type: file
  path_prefix: '/tmp/out/sample_%Y%m%d' # here
  sequence_format: ''
  formatter: {type: csv, header_line: true, charset: UTF-8, newline: CRLF}

The other way is using liquid file, but I don’t want use liquid file.

[hiroyuki-sato]

Hello, @shigemk2

Sorry. My explanation is not enough. I want sequence_format to be empty because I want to output only one file.

#501 might help as a workaround. Also related to #546.

in:
  type: file
  sequence_format: ''
  # ...snip
exec:
  min_output_tasks: 1

[dmikurube]

Please read it.

But at least, it does not seem related to this issue #1018.

Then, I’d suggest to file an Issue on the repository of the expected plugin, not this embulk repository.