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utils: Make the buffer size of `dump-port' a parameter. 

* guix/build/utils.scm (dump-port): Make `buffer-size' a keyword
  parameter.
This commit is contained in:
Ludovic Courtès 2012-12-15 15:54:29 +01:00
parent a784c3077e
commit 74baf333bf
1 changed files with 3 additions and 3 deletions
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6
guix/build/utils.scm
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@ -364,9 +364,9 @@ all subject to the substitutions."
;;; Patching shebangs---e.g., /bin/sh -> /nix/store/xyz...-bash/bin/sh.
;;;
(define (dump-port in out)
"Read as much data as possible from IN and write it to OUT."
(define buffer-size 4096)
(define* (dump-port in out #:key (buffer-size 16384))
"Read as much data as possible from IN and write it to OUT, using
chunks of BUFFER-SIZE bytes."
(define buffer
(make-bytevector buffer-size))