gexp: Move 'file-mapping->tree' to (guix store).

* guix/gexp.scm (%not-slash): Remove.
(file-mapping->tree): Move to...
* guix/store.scm (file-mapping->tree): ... here.

1 files changed, 0 insertions, 43 deletions

diff --git a/guix/gexp.scm b/guix/gexp.scm
index 8fea42c757..0a9d56c0e8 100644
--- a/guix/gexp.scm
+++ b/guix/gexp.scm
@@ -1239,49 +1239,6 @@ execution environment."
 ;;; Module handling.
 ;;;
 
-(define %not-slash
-  (char-set-complement (char-set #\/)))
-
-(define (file-mapping->tree mapping)
-  "Convert MAPPING, an alist like:
-
-  ((\"guix/build/utils.scm\" . \"…/utils.scm\"))
-
-to a tree suitable for 'interned-file-tree'."
-  (let ((mapping (map (match-lambda
-                        ((destination . source)
-                         (cons (string-tokenize destination
-                                                %not-slash)
-                               source)))
-                      mapping)))
-    (fold (lambda (pair result)
-            (match pair
-              ((destination . source)
-               (let loop ((destination destination)
-                          (result result))
-                 (match destination
-                   ((file)
-                    (let* ((mode (stat:mode (stat source)))
-                           (type (if (zero? (logand mode #o100))
-                                     'regular
-                                     'executable)))
-                      (alist-cons file
-                                  `(,type (file ,source))
-                                  result)))
-                   ((file rest ...)
-                    (let ((directory (assoc-ref result file)))
-                      (alist-cons file
-                                  `(directory
-                                    ,@(loop rest
-                                            (match directory
-                                              (('directory . entries) entries)
-                                              (#f '()))))
-                                  (if directory
-                                      (alist-delete file result)
-                                      result)))))))))
-          '()
-          mapping)))
-
 (define %utils-module
   ;; This file provides 'mkdir-p', needed to implement 'imported-files' and
   ;; other primitives below.  Note: We give the file name relative to this