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-rw-r--r--guix/scripts/hash.scm21
1 files changed, 17 insertions, 4 deletions
diff --git a/guix/scripts/hash.scm b/guix/scripts/hash.scm
index b8b2158195..cfc4420260 100644
--- a/guix/scripts/hash.scm
+++ b/guix/scripts/hash.scm
@@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2016, 2017, 2020 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2018 Tim Gesthuizen <tim.gesthuizen@yahoo.de>
@@ -42,7 +42,8 @@
(define %default-options
;; Alist of default option values.
- `((format . ,bytevector->nix-base32-string)))
+ `((format . ,bytevector->nix-base32-string)
+ (hash-algorithm . ,(hash-algorithm sha256))))
(define (show-help)
(display (G_ "Usage: guix hash [OPTION] FILE
@@ -53,6 +54,8 @@ and 'hexadecimal' can be used as well).\n"))
(format #t (G_ "
-x, --exclude-vcs exclude version control directories"))
(format #t (G_ "
+ -H, --hash=ALGORITHM use the given hash ALGORITHM"))
+ (format #t (G_ "
-f, --format=FMT write the hash in the given format"))
(format #t (G_ "
-r, --recursive compute the hash on FILE recursively"))
@@ -69,6 +72,13 @@ and 'hexadecimal' can be used as well).\n"))
(list (option '(#\x "exclude-vcs") #f #f
(lambda (opt name arg result)
(alist-cons 'exclude-vcs? #t result)))
+ (option '(#\H "hash") #t #f
+ (lambda (opt name arg result)
+ (match (lookup-hash-algorithm (string->symbol arg))
+ (#f
+ (leave (G_ "~a: unknown hash algorithm~%") arg))
+ (algo
+ (alist-cons 'hash-algorithm algo result)))))
(option '(#\f "format") #t #f
(lambda (opt name arg result)
(define fmt-proc
@@ -139,8 +149,11 @@ and 'hexadecimal' can be used as well).\n"))
(force-output port)
(get-hash))
(match file
- ("-" (port-sha256 (current-input-port)))
- (_ (call-with-input-file file port-sha256))))))
+ ("-" (port-hash (assoc-ref opts 'hash-algorithm)
+ (current-input-port)))
+ (_ (call-with-input-file file
+ (cute port-hash (assoc-ref opts 'hash-algorithm)
+ <>)))))))
(match args
((file)