02/02: graft: Graft files in parallel.

[Ludovic Courtès]

civodul pushed a commit to branch master
in repository guix.

commit 333c376c4586d16b215b994240ad4a5ddaa74d03
Author: Ludovic Courtès <address@hidden>
Date:   Mon Nov 16 14:22:13 2015 +0100

    graft: Graft files in parallel.
    
    * guix/build/graft.scm (rewrite-directory): Use 'n-par-for-each' instead
      of 'for-each'.
---
 guix/build/graft.scm |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/guix/build/graft.scm b/guix/build/graft.scm
index d29e671..0a9cd32 100644
--- a/guix/build/graft.scm
+++ b/guix/build/graft.scm
@@ -21,6 +21,7 @@
   #:use-module (rnrs bytevectors)
   #:use-module (rnrs io ports)
   #:use-module (ice-9 match)
+  #:use-module (ice-9 threads)
   #:export (replace-store-references
             rewrite-directory))
 
@@ -117,6 +118,7 @@ file name pairs."
         (else
          (error "unsupported file type" stat)))))
 
-  (for-each rewrite-leaf (find-files directory)))
+  (n-par-for-each (parallel-job-count)
+                  rewrite-leaf (find-files directory)))
 
 ;;; graft.scm ends here