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79 lines
2.8 KiB
Racket
79 lines
2.8 KiB
Racket
#lang racket/base
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(require (for-syntax racket/base racket/syntax))
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(require racket/date racket/string)
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(require sugar/debug sugar/define)
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(provide (all-from-out sugar/debug))
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; todo: contracts, tests, docs
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; debug utilities
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(define months (list "Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"))
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(define last-message-time #f)
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(define (seconds-since-last-message)
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(define now (current-seconds))
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(define then last-message-time)
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(set! last-message-time now)
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(if then
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(- now then)
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"0"))
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(define (zero-fill str count)
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(set! str (format "~a" str))
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(if (> (string-length str) count)
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str
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(string-append (make-string (- count (string-length str)) #\0) str)))
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(define+provide (make-datestamp)
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(define date (current-date))
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(define date-fields (map (λ(x) (zero-fill x 2))
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(list
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(date-day date)
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(list-ref months (sub1 (date-month date)))
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(date-year date)
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)))
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(string-join date-fields "-"))
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(define+provide (make-timestamp)
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(define date (current-date))
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(define time-fields (map (λ(x) (zero-fill x 2))
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(list
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; (date-day date)
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; (list-ref months (sub1 (date-month date)))
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(if (<= (date-hour date) 12)
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(date-hour date) ; am hours + noon hour
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(modulo (date-hour date) 12)) ; pm hours after noon hour
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(date-minute date)
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(date-second date))))
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(string-append (string-join time-fields ":") (if (< (date-hour date) 12) "am" "pm")))
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(define (make-debug-timestamp)
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(format "[~a ∆~as]" (make-timestamp) (seconds-since-last-message)))
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;; creates pollen-logger and associated functions:
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;; log-pollen-fatal, log-pollen-error, log-pollen-warning,
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;; log-pollen-info, and log-pollen-debug
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(define-logger pollen)
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(define-syntax (make-message-logger-functions stx)
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(syntax-case stx ()
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[(_ stem)
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(with-syntax ([message-stem (format-id stx "message-~a" #'stem)]
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[log-pollen-stem (format-id stx "log-pollen-~a" #'stem)])
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#'(begin
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;; does file have particular extension
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(define+provide (message-stem . items)
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(log-pollen-stem (string-join `(,(make-debug-timestamp) ,@(map (λ(x)(if (string? x) x (format "~v" x))) items)))))))]))
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(make-message-logger-functions fatal)
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(make-message-logger-functions error)
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(make-message-logger-functions warning)
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(make-message-logger-functions info)
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(make-message-logger-functions debug)
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(define+provide (message . items)
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(displayln (string-join `(,@(map (λ(x)(if (string? x) x (format "~v" x))) items)))))
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