I know that a hard-coded absolute path can be used in `require`:
(require (file "/path/to/directory/module.rkt"))))
But how can a generated path be used? Like so:
(require (file (path->string (build-path (current-directory) "module.rkt"))))
In particular, I want to `require` the file if it exists, or otherwise skip it.
I thought it should be a macro like this, but it doesn't work. The correct
`require` syntax pops out, but it doesn't bind any identifiers.
(define-syntax (try-current-directory-require stx)
(syntax-case stx ()
[(_ filename)
(with-syntax ([path-string (datum->syntax stx (path->string (build-path
(current-directory) (syntax->datum #'filename))))])
(if (file-exists? (syntax->datum #'path-string))
#'(require (prefix-in local: (file path-string)))
#'(void)))]))
(try-current-directory-require "module.rkt")
Any suggestions? Is this a job for `define-require-syntax`?
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