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style: Make 'safe' policy less conservative. 

Previously, a mere (arguments '(#:tests? #f)) would lead

  guix style -S inputs --input-simplification=safe

to bail out.  It now recognizes such trivial argument lists and
proceeds.

* guix/scripts/style.scm (trivial-package-arguments?): New procedure.
(simplify-package-inputs): Use it in the 'safe case instead of 'null?'.
* tests/style.scm ("input labels, 'safe' policy, trivial arguments"):
New test.
master
Ludovic Courtès 2023-05-04 16:41:40 +02:00
parent f0a51a2bda
commit 68fa28b3c3
No known key found for this signature in database
GPG Key ID: 090B11993D9AEBB5
2 changed files with 34 additions and 3 deletions
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15
guix/scripts/style.scm
View File

@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2021-2022 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2021-2023 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -242,6 +242,17 @@ doing it."
(location-line loc)
(location-column loc)))
(define (trivial-package-arguments? package)
"Return true if PACKAGE has zero arguments or only \"trivial\" arguments
guaranteed not to refer to input labels."
(let loop ((arguments (package-arguments package)))
(match arguments
(()
#t)
(((? keyword?) value rest ...)
(and (or (boolean? value) (number? value) (string? value))
(loop rest))))))
(define* (simplify-package-inputs package
#:key (policy 'silent)
(edit-expression edit-expression))
@ -276,7 +287,7 @@ PACKAGE."
;; If PACKAGE has no arguments, labels are known
;; to have no effect: this is a "safe" change, but
;; it may change the derivation.
(if (null? (package-arguments package))
(if (trivial-package-arguments? package)
(const #t)
label-matches?))
('always

22
tests/style.scm
View File

@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2021-2022 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2021-2023 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -234,6 +234,26 @@
(list (package-inputs (@ (my-packages) my-coreutils))
(read-package-field (@ (my-packages) my-coreutils) 'inputs)))))
(test-equal "input labels, 'safe' policy, trivial arguments"
(list `(("gmp" ,gmp) ("mpfr" ,mpfr))
"\
(inputs (list gmp mpfr))\n")
(call-with-test-package '((inputs `(("GMP" ,gmp) ("Mpfr" ,mpfr)))
(arguments ;"trivial" arguments
'(#:tests? #f
#:test-target "whatever")))
(lambda (directory)
(define file
(string-append directory "/my-packages.scm"))
(system* "guix" "style" "-L" directory "my-coreutils"
"-S" "inputs"
"--input-simplification=safe")
(load file)
(list (package-inputs (@ (my-packages) my-coreutils))
(read-package-field (@ (my-packages) my-coreutils) 'inputs)))))
(test-equal "input labels, 'safe' policy, nothing changed"
(list `(("GMP" ,gmp) ("ACL" ,acl))
"\