Command line args in F# fsx

Question

I run my .fsx file like

>fsi A.fsx

In this file I read csv with CsvProvider that has to have path to csv data.

type Data = CsvProvider<"my_data.txt", ";", Schema

I need to pass file name as command line argument and it is possible

 >fsi A.fsx my_data.txt

I can read it like

let originalPath = fsi.CommandLineArgs.ElementAt(1)

Problem is, that file name used in CsvProvider constructor needs to be constant and command line argument is not. How I can initialize CsvProvider from command line argument?

Answer 1

The value inside the angle brackes <"my_data.txt"...> specifies an example format file and is checked at compile time, hence the need for it to be a constant string. Assuming your .fsx script merely wants to load a different CSV file of the same general format, you would use

let contents = Data.Load(originalPath)