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utils: Make the second 'find-files' argument optional.

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* guix/build/utils.scm (find-files): Make 'pred' optional.
This commit is contained in:
Ludovic Courtès 2015-04-01 15:43:54 +02:00
parent 8ff3df5baa
commit 4ba3a84d07
1 changed files with 4 additions and 3 deletions
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7
guix/build/utils.scm
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@ -273,11 +273,12 @@ name matches REGEXP."
(lambda (file stat)
(regexp-exec file-rx (basename file)))))
(define (find-files dir pred)
(define* (find-files dir #:optional (pred (const #t)))
"Return the lexicographically sorted list of files under DIR for which PRED
returns true. PRED is passed two arguments: the absolute file name, and its
stat buffer. PRED can also be a regular expression, in which case it is
equivalent to (file-name-predicate PRED)."
stat buffer; the default predicate always returns true. PRED can also be a
regular expression, in which case it is equivalent to (file-name-predicate
PRED)."
(let ((pred (if (procedure? pred)
pred
(file-name-predicate pred))))