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ui: 'display-generation' emits a hyperlink for the generation.

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* guix/ui.scm (supports-hyperlinks?): Make 'port' optional.
(display-generation): Use 'file-hyperlink' for the heading when
'supports-hyperlinks?' returns true.
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Ludovic Courtès 2019-11-28 13:12:39 +01:00
parent fa983b8257
commit 055f052574
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1 changed files with 17 additions and 12 deletions
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29
guix/ui.scm
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@ -1247,7 +1247,7 @@ (define (hyperlink uri text)
(string-append "\x1b]8;;" uri "\x1b\\"
text "\x1b]8;;\x1b\\"))
(define (supports-hyperlinks? port)
(define* (supports-hyperlinks? #:optional (port (current-output-port)))
"Return true if PORT is a terminal that supports hyperlink escapes."
;; Note that terminals are supposed to ignore OSC escapes they don't
;; understand (this is the case of xterm as of version 349, for instance.)
@ -1613,17 +1613,22 @@ (define generation-ctime-alist
(define (display-generation profile number)
"Display a one-line summary of generation NUMBER of PROFILE."
(unless (zero? number)
(let ((header (format #f (highlight (G_ "Generation ~a\t~a")) number
(date->string
(time-utc->date
(generation-time profile number))
;; TRANSLATORS: This is a format-string for date->string.
;; Please choose a format that corresponds to the
;; usual way of presenting dates in your locale.
;; See https://www.gnu.org/software/guile/manual/html_node/SRFI_002d19-Date-to-string.html
;; for details.
(G_ "~b ~d ~Y ~T"))))
(current (generation-number profile)))
(let* ((file (generation-file-name profile number))
(link (if (supports-hyperlinks?)
(cut file-hyperlink file <>)
identity))
(header (format #f (link (highlight (G_ "Generation ~a\t~a")))
number
(date->string
(time-utc->date
(generation-time profile number))
;; TRANSLATORS: This is a format-string for date->string.
;; Please choose a format that corresponds to the
;; usual way of presenting dates in your locale.
;; See https://www.gnu.org/software/guile/manual/html_node/SRFI_002d19-Date-to-string.html
;; for details.
(G_ "~b ~d ~Y ~T"))))
(current (generation-number profile)))
(if (= number current)
;; TRANSLATORS: The word "current" here is an adjective for
;; "Generation", as in "current generation". Use the appropriate