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refactor: Move RFC 3339 date/time str gen to a separate function
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@kaushalmodi
kaushalmodi committed May 10, 2022
1 parent e6c78c4 commit 11aedff
Showing 1 changed file with 89 additions and 79 deletions.
168 changes: 89 additions & 79 deletions ox-hugo.el
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Expand Up @@ -1290,6 +1290,33 @@ INFO is a plist used as a communication channel."
(org-export-get-date info fmt))))

;;;; Format Dates
(defun org-hugo--org-date-time-to-rfc3339 (date-time info)
"Convert DATE-TIME to RFC 3339 format.
DATE-TIME can be either Emacs format time list (example: return
value of `current-time'), or an Org date/time string.
INFO is a plist used as a communication channel."
(let* ((date-time (if (stringp date-time)
(apply #'encode-time (org-parse-time-string date-time))
date-time))
(date-nocolon (format-time-string
(plist-get info :hugo-date-format)
date-time)))
;; Hugo expects the date stamp in this format (RFC3339 -- See
;; `org-hugo--date-time-regexp'.) i.e. if the date contains the
;; time-zone, a colon is required to separate the hours and
;; minutes in the time-zone section. 2017-07-06T14:59:45-04:00

;; But by default the "%z" placeholder for time-zone (see
;; `format-time-string') produces the zone time-string as "-0400"
;; (Note the missing colon). Below simply adds a colon between
;; "04" and "00" in that example.
(and (stringp date-nocolon)
(replace-regexp-in-string
"\\([0-9]\\{2\\}\\)\\([0-9]\\{2\\}\\)\\'" "\\1:\\2"
date-nocolon))))

(defun org-hugo--format-date (date-key info)
"Return a date string formatted in Hugo-compatible format.
Expand All @@ -1313,85 +1340,68 @@ cannot be formatted in Hugo-compatible format."
(org-entry-get (point) "SCHEDULED"))
(t ;:hugo-lastmod, :hugo-publishdate, :hugo-expirydate
(org-string-nw-p (plist-get info date-key)))))
(date-nocolon (cond
;; If the date set for the DATE-KEY parameter
;; is already in Hugo-compatible format, use
;; it.
((and (stringp date-raw)
(string-match-p org-hugo--date-time-regexp date-raw))
date-raw)
;; Else if it's any other string (like
;; "<2018-01-23 Tue>"), try to parse that
;; date.
((stringp date-raw)
(condition-case err
(format-time-string
date-fmt
(apply #'encode-time (org-parse-time-string date-raw)))
(error
;; Set date-nocolon to nil if error
;; happens. An example: If #+date is set
;; to 2012-2017 to set the copyright
;; years, just set the date to nil instead
;; of throwing an error like:
;; org-parse-time-string: Not a standard
;; Org time string: 2012-2017
(message
(format "[ox-hugo] Date will not be set in the front-matter: %s"
(nth 1 err)))
nil)))
;; Else (if nil) and user want to auto-set the
;; lastmod field.
((and (equal date-key :hugo-lastmod)
(org-hugo--plist-get-true-p info :hugo-auto-set-lastmod))
(let* ((curr-time (org-current-time))
(lastmod-str (format-time-string date-fmt curr-time)))
;; (message "[ox-hugo suppress-lastmod] current-time = %S (decoded = %S)"
;; curr-time (decode-time curr-time))
;; (message "[ox-hugo suppress-lastmod] lastmod-str = %S"
;; lastmod-str )
(if (= 0.0 org-hugo-suppress-lastmod-period)
(progn
;; (message "[ox-hugo suppress-lastmod] not suppressed")
lastmod-str)
(let ((date-str (org-string-nw-p (org-hugo--get-date info date-fmt))))
;; (message "[ox-hugo suppress-lastmod] date-str = %S"
;; date-str)
(when date-str
(let* ((date-time (apply #'encode-time
(mapcar (lambda (el) (or el 0))
(parse-time-string date-str))))
;; It's safe to assume that
;; `current-time' will always
;; be >= the post date.
(delta (float-time
(time-subtract curr-time date-time)))
(suppress-period (if (< 0.0 org-hugo-suppress-lastmod-period)
org-hugo-suppress-lastmod-period
(- org-hugo-suppress-lastmod-period))))
;; (message "[ox-hugo suppress-lastmod] date-time = %S (decoded = %S)"
;; date-time (decode-time date-time))
;; (message "[ox-hugo suppress-lastmod] delta = %S" delta)
;; (message "[ox-hugo suppress-lastmod] suppress-period = %S"
;; suppress-period)
(when (>= delta suppress-period)
lastmod-str)))))))
;; Else.. do nothing.
(t
nil)))
;; Hugo expects the date stamp in this format (RFC3339 -- See
;; `org-hugo--date-time-regexp'.) i.e. if the date contains
;; the time-zone, a colon is required to separate the hours
;; and minutes in the time-zone section.
;; 2017-07-06T14:59:45-04:00
;; But by default the "%z" placeholder for time-zone (see
;; `format-time-string') produces the zone time-string as
;; "-0400" (Note the missing colon). Below simply adds a
;; colon between "04" and "00" in that example.
(date-str (and (stringp date-nocolon)
(replace-regexp-in-string "\\([0-9]\\{2\\}\\)\\([0-9]\\{2\\}\\)\\'" "\\1:\\2"
date-nocolon))))
date-str))
(dt-rfc3339 (cond
;; If the date set for the DATE-KEY parameter is
;; already in Hugo-compatible format, use it.
((and (stringp date-raw)
(string-match-p org-hugo--date-time-regexp date-raw))
date-raw)
;; Else if it's any other string (like
;; "<2018-01-23 Tue>"), try to parse that date.
((stringp date-raw)
(condition-case err
(org-hugo--org-date-time-to-rfc3339 date-raw info)
(error
;; Set dt-rfc3339 to nil if error happens.
;; An example: If #+date is set to 2012-2017
;; to set the copyright years, just set the
;; date to nil instead of throwing an error
;; like: org-parse-time-string: Not a
;; standard Org time string: 2012-2017
(message
(format "[ox-hugo] Date will not be set in the front-matter: %s"
(nth 1 err)))
nil)))
;; Else (if nil) and user want to auto-set the
;; lastmod field.
((and (equal date-key :hugo-lastmod)
(org-hugo--plist-get-true-p info :hugo-auto-set-lastmod))
(let* ((curr-time (org-current-time))
(lastmod-str (org-hugo--org-date-time-to-rfc3339 curr-time info)))
;; (message "[ox-hugo suppress-lastmod] current-time = %S (decoded = %S)"
;; curr-time (decode-time curr-time))
;; (message "[ox-hugo suppress-lastmod] lastmod-str = %S"
;; lastmod-str )
(if (= 0.0 org-hugo-suppress-lastmod-period)
(progn
;; (message "[ox-hugo suppress-lastmod] not suppressed")
lastmod-str)
(let ((date-str (org-string-nw-p (org-hugo--get-date info date-fmt))))
;; (message "[ox-hugo suppress-lastmod] date-str = %S"
;; date-str)
(when date-str
(let* ((date-time (apply #'encode-time
(mapcar (lambda (el) (or el 0))
(parse-time-string date-str))))
;; It's safe to assume that
;; `current-time' will always
;; be >= the post date.
(delta (float-time
(time-subtract curr-time date-time)))
(suppress-period (if (< 0.0 org-hugo-suppress-lastmod-period)
org-hugo-suppress-lastmod-period
(- org-hugo-suppress-lastmod-period))))
;; (message "[ox-hugo suppress-lastmod] date-time = %S (decoded = %S)"
;; date-time (decode-time date-time))
;; (message "[ox-hugo suppress-lastmod] delta = %S" delta)
;; (message "[ox-hugo suppress-lastmod] suppress-period = %S"
;; suppress-period)
(when (>= delta suppress-period)
lastmod-str)))))))
;; Else.. do nothing.
(t
nil))))
dt-rfc3339))

;;;; Replace Front-matter Keys
(defun org-hugo--replace-keys-maybe (data info)
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