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pollen/tools.rkt

33 lines
1.3 KiB
Racket

#lang racket/base
(require racket/contract racket/list)
(require tagged-xexpr sugar "debug.rkt" "predicates.rkt" "world.rkt")
(provide (all-from-out "debug.rkt" "predicates.rkt" racket/list))
;; setup for test cases
(module+ test (require rackunit))
;; list of all eligible requires in project require directory
(define+provide/contract (get-project-require-files)
(-> (or/c #f (listof complete-path?)))
(define extras-directory (build-path PROJECT_ROOT EXTRAS_DIR))
(and (directory-exists? extras-directory)
;; #:build? option returns complete paths (instead of just file names)
(let ([files (filter project-require-file? (directory-list extras-directory #:build? #t))])
(and (not (empty? files)) files))))
;; convert list of meta tags to a hash for export from pollen document.
;; every meta is form (meta "key" "value") (enforced by contract)
;; later metas with the same name will override earlier ones.
(define+provide/contract (make-meta-hash mxs)
((listof meta-xexpr?) . -> . hash?)
(apply hash (append-map tagged-xexpr-elements mxs)))
(module+ test
(check-equal? (make-meta-hash '((meta "foo" "bar")(meta "hee" "haw")))
(hash "foo" "bar" "hee" "haw"))
(check-equal? (make-meta-hash '((meta "foo" "bar")(meta "foo" "haw")))
(hash "foo" "haw")))