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(define-module (src urls)
#:use-module (srfi srfi-19)
#:use-module (src date-utils)
#:export (gnu-url
weekly-news-post-url
weekly-news-post-slug
data-guix-gnu-org-compare-by-datetime-url))
(define* (gnu-url #:optional (path ""))
"Append PATH to GNU.org URL.
PATH (string)
An optional relative URL path to a resource. For example:
'software/guile/'.
RETURN VALUE (string)
A URL. For example: https://gnu.org/software/guile/."
(string-append "https://gnu.org/" path))
(define* (weekly-news-post-url . args)
(string-append
"/"
(apply weekly-news-post-slug args)
".html"))
(define (is-year-and-week-a-draft? year week)
(time>? (date->time-utc
(lookup-end-date-for-week year week))
(current-time)))
(define* (weekly-news-post-slug year week #:key (locale "en_US"))
(string-append
(if (is-year-and-week-a-draft? year week)
"drafts/"
"")
(format #f "~a/~d/~2,'0d" locale year week)))
(define* (data-guix-gnu-org-compare-by-datetime-url
base-datetime
target-datetime
#:key (json #f))
(define (date->string* date)
(date->string date "~1%20~T"))
(string-append
"http://data.guix.gnu.org/compare-by-datetime"
(if json ".json" "")
"?base_branch=master"
"&base_datetime=" (date->string* base-datetime)
"&target_branch=master"
"&target_datetime=" (date->string* target-datetime)))
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