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deprecation: Use the 'warning' procedure for diagnostics.

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Until now, (guix deprecation) had its own warning mechanism, which was
inconsistent (it did not use colors, etc.)

* guix/deprecation.scm (deprecation-warning-port): Remove
(source-properties->location-string): Remove.
(warn-about-deprecation): Use 'warning' instead of 'format'.
(define-deprecated, define-deprecated/alias): Adjust docstring.
* guix/channels.scm (build-from-source): Refer to 'guix-warning-port'
instead of 'deprecation-warning-port'.
This commit is contained in:
Ludovic Courtès 2019-06-03 23:00:42 +02:00
parent 1b5ee3bdaa
commit 69962ab7a8
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GPG Key ID: 090B11993D9AEBB5
2 changed files with 13 additions and 27 deletions
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4
guix/channels.scm
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@ -27,7 +27,7 @@
#:use-module (guix profiles)
#:use-module (guix derivations)
#:use-module (guix combinators)
#:use-module (guix deprecation)
#:use-module (guix diagnostics)
#:use-module (guix store)
#:use-module (guix i18n)
#:use-module ((guix utils)
@ -280,7 +280,7 @@ package modules under SOURCE using CORE, an instance of Guix."
;; Disable deprecation warnings; it's OK for SCRIPT to
;; use deprecated APIs and the user doesn't have to know
;; about it.
(parameterize ((deprecation-warning-port
(parameterize ((guix-warning-port
(%make-void-port "w")))
(primitive-load script))))))
;; BUILD must be a monadic procedure of at least one argument: the

36
guix/deprecation.scm
View File

@ -18,40 +18,26 @@
(define-module (guix deprecation)
#:use-module (guix i18n)
#:use-module (ice-9 format)
#:use-module (guix diagnostics)
#:autoload (guix utils) (source-properties->location)
#:export (define-deprecated
define-deprecated/alias
warn-about-deprecation
deprecation-warning-port))
warn-about-deprecation))
;;; Commentary:
;;;
;;; Provide a mechanism to mark bindings as deprecated.
;;;
;;; We don't reuse (guix ui) mostly to avoid pulling in too many things.
;;;
;;; Code:
(define deprecation-warning-port
;; Port where deprecation warnings go.
(make-parameter (current-error-port)))
(define (source-properties->location-string properties)
"Return a human-friendly, GNU-standard representation of PROPERTIES, a
source property alist."
(let ((file (assq-ref properties 'filename))
(line (assq-ref properties 'line))
(column (assq-ref properties 'column)))
(if (and file line column)
(format #f "~a:~a:~a" file (+ 1 line) column)
(G_ "<unknown location>"))))
(define* (warn-about-deprecation variable properties
#:key replacement)
(format (deprecation-warning-port)
(G_ "~a: warning: '~a' is deprecated~@[, use '~a' instead~]~%")
(source-properties->location-string properties)
variable replacement))
(let ((location (and properties (source-properties->location properties))))
(if replacement
(warning location (G_ "'~a' is deprecated, use '~a' instead~%")
variable replacement)
(warning location (G_ "'~a' is deprecated~%")
variable))))
(define-syntax define-deprecated
(lambda (s)
@ -60,7 +46,7 @@ source property alist."
(define-deprecated foo bar 42)
(define-deprecated (baz x y) qux (qux y x))
This will write a deprecation warning to DEPRECATION-WARNING-PORT."
This will write a deprecation warning to GUIX-WARNING-PORT."
(syntax-case s ()
((_ (proc formals ...) replacement body ...)
#'(define-deprecated proc replacement
@ -97,7 +83,7 @@ these lines:
where 'nix-server?' is the deprecated name for 'store-connection?'.
This will write a deprecation warning to DEPRECATION-WARNING-PORT."
This will write a deprecation warning to GUIX-WARNING-PORT."
(define-syntax deprecated
(lambda (s)
(warn-about-deprecation 'deprecated (syntax-source s)