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-rw-r--r--guix/scripts/hash.scm25
1 files changed, 20 insertions, 5 deletions
diff --git a/guix/scripts/hash.scm b/guix/scripts/hash.scm
index d44095377b..a57602ab51 100644
--- a/guix/scripts/hash.scm
+++ b/guix/scripts/hash.scm
@@ -1,6 +1,7 @@
;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2016 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
+;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -49,6 +50,8 @@ Return the cryptographic hash of FILE.
Supported formats: 'nix-base32' (default), 'base32', and 'base16' ('hex'
and 'hexadecimal' can be used as well).\n"))
(format #t (_ "
+ -x, --exclude-vcs exclude version control directories"))
+ (format #t (_ "
-f, --format=FMT write the hash in the given format"))
(format #t (_ "
-r, --recursive compute the hash on FILE recursively"))
@@ -62,7 +65,10 @@ and 'hexadecimal' can be used as well).\n"))
(define %options
;; Specification of the command-line options.
- (list (option '(#\f "format") #t #f
+ (list (option '(#\x "exclude-vcs") #f #f
+ (lambda (opt name arg result)
+ (alist-cons 'exclude-vcs? #t result)))
+ (option '(#\f "format") #t #f
(lambda (opt name arg result)
(define fmt-proc
(match arg
@@ -81,7 +87,6 @@ and 'hexadecimal' can be used as well).\n"))
(option '(#\r "recursive") #f #f
(lambda (opt name arg result)
(alist-cons 'recursive? #t result)))
-
(option '(#\h "help") #f #f
(lambda args
(show-help)
@@ -107,13 +112,23 @@ and 'hexadecimal' can be used as well).\n"))
(alist-cons 'argument arg result))
%default-options))
+ (define (vcs-file? file stat)
+ (case (stat:type stat)
+ ((directory)
+ (member (basename file) '(".bzr" ".git" ".hg" ".svn" "CVS")))
+ (else
+ #f)))
+
(let* ((opts (parse-options))
(args (filter-map (match-lambda
(('argument . value)
value)
(_ #f))
(reverse opts)))
- (fmt (assq-ref opts 'format)))
+ (fmt (assq-ref opts 'format))
+ (select? (if (assq-ref opts 'exclude-vcs?)
+ (negate vcs-file?)
+ (const #t))))
(define (file-hash file)
;; Compute the hash of FILE.
@@ -121,7 +136,7 @@ and 'hexadecimal' can be used as well).\n"))
(with-error-handling
(if (assoc-ref opts 'recursive?)
(let-values (((port get-hash) (open-sha256-port)))
- (write-file file port)
+ (write-file file port #:select? select?)
(flush-output-port port)
(get-hash))
(call-with-input-file file port-sha256))))