Usually, if you want to refer to data files etc relative to the current
module's file, a good solution is to use `define-runtime-path`. It uses
`#%variable-reference` as the basis for its implementation, but adds other
features like cooperation with `raco exe` (see docs for
`define-runtime-path` near "an executable creator").
Ryan
On Thu, Aug 26, 2021 at 4:51 PM Jeff Henrikson <jehenri...@gmail.com> wrote:
> Racket users,
>
> Many software applications use their location in the filesystem to
> establish filesystem relationships between their executable file, their
> configuration and their data. For this purpose, C provides the first
> element of the string array provided to main, python provides __file__,
> bash provides ${BASH_SOURCE[0]}, etc.
>
> Racket strips said value before current-command-line-arguments receives
> the subsequent command-line arguments from the operating system.
>
> A related value can be pulled from syntax-source as follows:
>
> (define-syntax (get-current-source stx)
> (datum->syntax
> (quote-syntax here)
> (syntax-source stx)
> stx))
>
> Macro get-current-source works as intended if called at program startup
> and the program is compiled on the fly with:
>
> racket program.rkt
>
> However get-current-source has the unintended property of memorizing the
> original source location if the program is compiled with raco exe (and then
> moved).
> Is there a way in racket to obtain the path of the application program?
>
>
> Jeff Henrikson
>
>
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