Merge branch 'master' into core-updates

1 files changed, 18 insertions, 1 deletions

diff --git a/gnu/build/vm.scm b/gnu/build/vm.scm
index 5579886264..746808515f 100644
--- a/gnu/build/vm.scm
+++ b/gnu/build/vm.scm
@@ -25,7 +25,7 @@
   #:use-module (guix build utils)
   #:use-module (guix build store-copy)
   #:use-module (guix build syscalls)
-  #:use-module ((guix store database) #:select (reset-timestamps))
+  #:use-module (guix store database)
   #:use-module (gnu build linux-boot)
   #:use-module (gnu build install)
   #:use-module (gnu system uuid)
@@ -191,6 +191,23 @@ the #:references-graphs parameter of 'derivation'."
           (mkdir output)
           (copy-recursively "xchg" output)))))
 
+(define* (register-closure prefix closure
+                           #:key
+                           (deduplicate? #t) (reset-timestamps? #t)
+                           (schema (sql-schema)))
+  "Register CLOSURE in PREFIX, where PREFIX is the directory name of the
+target store and CLOSURE is the name of a file containing a reference graph as
+produced by #:references-graphs..  As a side effect, if RESET-TIMESTAMPS? is
+true, reset timestamps on store files and, if DEDUPLICATE? is true,
+deduplicates files common to CLOSURE and the rest of PREFIX."
+  (let ((items (call-with-input-file closure read-reference-graph)))
+    (register-items items
+                    #:prefix prefix
+                    #:deduplicate? deduplicate?
+                    #:reset-timestamps? reset-timestamps?
+                    #:registration-time %epoch
+                    #:schema schema)))
+
 
 ;;;
 ;;; Partitions.