Add dynamic resource (disk size) allocation based on input file size

[cgpu]

#!/usr/bin/env nextflow 

Channel
     .fromPath('hello.txt')
     .map { [it, it.size()] }
     .set { input_ch }

process foo {
  disk { $x.size() < 600.GB ? 400.GB : 700.GB }
  input:
  set file(x), val(sz) from input_ch
  """
  you_command --input $x
  """
}

In human words:

disk { $x.size() < 600.GB ? 400.GB : 700.GB }
"Is the input file size < 600GB?|

• If true, allocate disk of size 400.GB in the task
• If false, allocate disk of size 700.GB in the task