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authorLudovic Courtès <ludo@gnu.org>2015-04-06 23:09:54 +0200
committerLudovic Courtès <ludo@gnu.org>2015-04-06 23:09:54 +0200
commit347f54ed33a0b9a4e234d18dadf950f055e16554 (patch)
tree3478fc0053e0b8ac1d48edde3e80daf29e0c44a0
parente081385af289da4c330511aa5adac8078fbd5074 (diff)
downloadguix-347f54ed33a0b9a4e234d18dadf950f055e16554.tar.gz
utils: 'find-files' does not follow symlinks by default.
Fixes <http://bugs.gnu.org/20081>.
Reported by Tomáš Čech <sleep_walker@suse.cz>.

* guix/build/utils.scm (find-files): Add #:stat parameter.  Pass it as
  last argument to 'file-system-fold'.
-rw-r--r--guix/build/utils.scm9
1 files changed, 6 insertions, 3 deletions
diff --git a/guix/build/utils.scm b/guix/build/utils.scm
index fbd5d54da5..676a0120e3 100644
--- a/guix/build/utils.scm
+++ b/guix/build/utils.scm
@@ -278,12 +278,14 @@ name matches REGEXP."
     (lambda (file stat)
       (regexp-exec file-rx (basename file)))))
 
-(define* (find-files dir #:optional (pred (const #t)))
+(define* (find-files dir #:optional (pred (const #t))
+                     #:key (stat lstat))
   "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; the default predicate always returns true.  PRED can also be a
 regular expression, in which case it is equivalent to (file-name-predicate
-PRED)."
+PRED).  STAT is used to obtain file information; using 'lstat' means that
+symlinks are not followed."
   (let ((pred (if (procedure? pred)
                   pred
                   (file-name-predicate pred))))
@@ -304,7 +306,8 @@ PRED)."
                                       file (strerror errno))
                               result)
                             '()
-                            dir)
+                            dir
+                            stat)
           string<?)))