7f2583cf55
* guix/deprecation.scm (define-deprecated/public): Fix docstring. Change-Id: I895b1a86654b2756a9f98e858c622e8e7a6e2c27 Signed-off-by: Ludovic Courtès <ludo@gnu.org>
135 lines
5.0 KiB
Scheme
135 lines
5.0 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
|
;;; Copyright © 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
|
|
;;; Copyright © 2021 Mathieu Othacehe <othacehe@gnu.org>
|
|
;;;
|
|
;;; This file is part of GNU Guix.
|
|
;;;
|
|
;;; GNU Guix is free software; you can redistribute it and/or modify it
|
|
;;; under the terms of the GNU General Public License as published by
|
|
;;; the Free Software Foundation; either version 3 of the License, or (at
|
|
;;; your option) any later version.
|
|
;;;
|
|
;;; GNU Guix is distributed in the hope that it will be useful, but
|
|
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;;; GNU General Public License for more details.
|
|
;;;
|
|
;;; You should have received a copy of the GNU General Public License
|
|
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
(define-module (guix deprecation)
|
|
#:use-module (guix i18n)
|
|
#:use-module (guix diagnostics)
|
|
#:autoload (guix utils) (source-properties->location)
|
|
#:export (define-deprecated
|
|
|
|
define-deprecated/public
|
|
define-deprecated/alias
|
|
define-deprecated/public-alias
|
|
|
|
warn-about-old-daemon
|
|
warn-about-deprecation))
|
|
|
|
;;; Commentary:
|
|
;;;
|
|
;;; Provide a mechanism to mark bindings as deprecated.
|
|
;;;
|
|
;;; Code:
|
|
|
|
(define (warn-about-old-daemon)
|
|
(warning (G_ "Your Guix daemon is severely outdated, and will soon cease to
|
|
be able to download binary substitutes. To upgrade it, refer to the
|
|
'Upgrading Guix' section in the manual.~%")))
|
|
|
|
(define* (warn-about-deprecation variable properties
|
|
#:key 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 public (syntax-rules ())) ;private syntactic keyword
|
|
|
|
(define-syntax define-deprecated
|
|
(lambda (s)
|
|
"Define a deprecated variable or procedure, along these lines:
|
|
|
|
(define-deprecated foo bar 42)
|
|
(define-deprecated old new)
|
|
(define-deprecated (baz x y) qux (qux y x))
|
|
|
|
This will write a deprecation warning to GUIX-WARNING-PORT."
|
|
(syntax-case s ()
|
|
((_ (proc formals ...) replacement body ...)
|
|
#'(define-deprecated proc replacement
|
|
(lambda* (formals ...) body ...)))
|
|
((_ variable replacement exp)
|
|
#'(define-deprecated private variable replacement exp))
|
|
((_ visibility variable replacement exp)
|
|
(identifier? #'variable)
|
|
(with-syntax ((real (datum->syntax
|
|
#'variable
|
|
(symbol-append '%
|
|
(syntax->datum #'variable)
|
|
'/deprecated))))
|
|
#`(begin
|
|
(define real
|
|
(begin
|
|
(lambda () replacement) ;just to ensure it's bound
|
|
exp))
|
|
|
|
(define-syntax variable
|
|
(lambda (s)
|
|
(warn-about-deprecation 'variable (syntax-source s)
|
|
#:replacement 'replacement)
|
|
(syntax-case s ()
|
|
((_ args (... ...))
|
|
#'(real args (... ...)))
|
|
(id
|
|
(identifier? #'id)
|
|
#'real))))
|
|
|
|
;; When asking for public visibility, export both REAL and
|
|
;; VARIABLE. Exporting REAL is useful when defining deprecated
|
|
;; packages: there must be a public variable bound to a package
|
|
;; so that the (guix discover) machinery finds it.
|
|
#,(if (free-identifier=? #'visibility #'public)
|
|
#'(export real variable)
|
|
#'(begin)))))
|
|
((_ variable alias)
|
|
(identifier? #'alias)
|
|
#'(define-deprecated variable alias alias)))))
|
|
|
|
(define-syntax-rule (define-deprecated/public body ...)
|
|
"Like 'define-deprecated', but export all the newly introduced bindings."
|
|
(define-deprecated public body ...))
|
|
|
|
(define-syntax-rule (define-deprecated/alias deprecated replacement)
|
|
"Define as an alias a deprecated variable, procedure, or macro, along
|
|
these lines:
|
|
|
|
(define-deprecated/alias nix-server? store-connection?)
|
|
|
|
where 'nix-server?' is the deprecated name for 'store-connection?'.
|
|
|
|
This will write a deprecation warning to GUIX-WARNING-PORT."
|
|
(define-syntax deprecated
|
|
(lambda (s)
|
|
(warn-about-deprecation 'deprecated (syntax-source s)
|
|
#:replacement 'replacement)
|
|
(syntax-case s ()
|
|
((_ args (... ...))
|
|
#'(replacement args (... ...)))
|
|
(id
|
|
(identifier? #'id)
|
|
#'replacement)))))
|
|
|
|
(define-syntax-rule (define-deprecated/public-alias deprecated replacement)
|
|
"Like define-deprecated/alias, but exporting DEPRECATED.
|
|
It is assumed, that REPLACEMENT is already public."
|
|
(begin
|
|
(define-deprecated/alias deprecated replacement)
|
|
(export deprecated)))
|