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packages: Sort Scheme file lists used by 'fold-packages'.

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* gnu/packages.scm (scheme-files): Call 'sort' on result.
This commit is contained in:
Ludovic Courtès 2014-12-21 12:28:10 +01:00
parent ce44657aab
commit d95523fb8b
1 changed files with 23 additions and 18 deletions
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41
gnu/packages.scm
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@ -105,24 +105,29 @@ (define %package-module-path
(append environment `((,%distro-root-directory . "gnu/packages"))))))
(define* (scheme-files directory)
"Return the list of Scheme files found under DIRECTORY."
(file-system-fold (const #t) ; enter?
(lambda (path stat result) ; leaf
(if (string-suffix? ".scm" path)
(cons path result)
result))
(lambda (path stat result) ; down
result)
(lambda (path stat result) ; up
result)
(const #f) ; skip
(lambda (path stat errno result)
(warning (_ "cannot access `~a': ~a~%")
path (strerror errno))
result)
'()
directory
stat))
"Return the list of Scheme files found under DIRECTORY, recursively. The
returned list is sorted in alphabetical order."
;; Sort entries so that 'fold-packages' works in a deterministic fashion
;; regardless of details of the underlying file system.
(sort (file-system-fold (const #t) ; enter?
(lambda (path stat result) ; leaf
(if (string-suffix? ".scm" path)
(cons path result)
result))
(lambda (path stat result) ; down
result)
(lambda (path stat result) ; up
result)
(const #f) ; skip
(lambda (path stat errno result)
(warning (_ "cannot access `~a': ~a~%")
path (strerror errno))
result)
'()
directory
stat)
string<?))
(define file-name->module-name
(let ((not-slash (char-set-complement (char-set #\/))))