Migrate config.rkt to Typed Racket

This commit is contained in:
Cadence Ember 2022-10-04 22:00:44 +13:00
parent 79f04565c7
commit 6b176e3f8f
Signed by: cadence
GPG key ID: BC1C2C61CF521B17
2 changed files with 34 additions and 12 deletions

View file

@ -1,23 +1,32 @@
#lang racket/base
#lang typed/racket/base
(require racket/function
racket/pretty
racket/runtime-path
racket/string
ini)
racket/string)
(require/typed ini
[#:opaque Ini ini?]
[read-ini (Input-Port -> Ini)]
[ini->hash (Ini -> (Immutable-HashTable Symbol (Immutable-HashTable Symbol String)))])
(provide
config-parameter
config-true?
config-get)
(module+ test
(require "typed-rackunit.rkt"))
(define-runtime-path path-config "../config.ini")
(: config-parameter (Symbol -> (Parameterof String)))
(define (config-parameter key)
(hash-ref config key))
(: config-true? (Symbol -> Boolean))
(define (config-true? key)
(not (member ((config-parameter key)) '("" "false"))))
(: config-get (Symbol -> String))
(define (config-get key)
((config-parameter key)))
@ -56,18 +65,24 @@
(define env-alist
(let ([e-names (environment-variables-names (current-environment-variables))]
[e-ref (λ (name) (bytes->string/latin-1 (environment-variables-ref (current-environment-variables) name)))])
(map (λ (name) (cons (string->symbol (string-downcase (substring (bytes->string/latin-1 name) 3)))
[e-ref (λ ([name : Bytes])
(bytes->string/latin-1
(cast (environment-variables-ref (current-environment-variables) name)
Bytes)))])
(map (λ ([name : Bytes])
(cons (string->symbol (string-downcase (substring (bytes->string/latin-1 name) 3)))
(e-ref name)))
(filter (λ (name) (string-prefix? (string-downcase (bytes->string/latin-1 name)) "bw_")) e-names))))
(filter (λ ([name : Bytes]) (string-prefix? (string-downcase (bytes->string/latin-1 name))
"bw_"))
e-names))))
(when (> (length env-alist) 0)
(printf "note: ~a items loaded from environment variables~n" (length env-alist)))
(define combined-alist (append default-config loaded-alist env-alist))
(define config
(make-hasheq
(map (λ (pair)
(make-immutable-hasheq
(map (λ ([pair : (Pairof Symbol String)])
(cons (car pair) (make-parameter (cdr pair))))
combined-alist)))
@ -75,8 +90,8 @@
; all values here are optimised for maximum prettiness
(parameterize ([pretty-print-columns 80])
(display "config: ")
(pretty-write (sort
(hash->list (make-hasheq combined-alist))
(pretty-write ((inst sort (Pairof Symbol String))
(hash->list (make-immutable-hasheq combined-alist))
symbol<?
#:key car))))
@ -85,3 +100,10 @@
(displayln
(string-append "warning: configuring canonical_origin is highly recommended for production!\n"
" see https://docs.breezewiki.com/Configuration.html"))))
(module+ test
; this is just a sanity check
(parameterize ([(config-parameter 'application_name) "JeffWiki"]
[(config-parameter 'strict_proxy) ""])
(check-equal? (config-get 'application_name) "JeffWiki")
(check-false (config-true? 'strict_proxy))))

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@ -1,7 +1,7 @@
#lang typed/racket/base
(require racket/string
"config.rkt"
"pure-utils.rkt")
(require/typed "config.rkt" [config-true? (Symbol -> Boolean)])
(provide
; regex to match wiki names