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-rw-r--r--guix/store.scm25
1 files changed, 25 insertions, 0 deletions
diff --git a/guix/store.scm b/guix/store.scm
index 8ad32b2fd5..393eee8d1b 100644
--- a/guix/store.scm
+++ b/guix/store.scm
@@ -33,6 +33,7 @@
#:use-module (ice-9 match)
#:use-module (ice-9 regex)
#:use-module (ice-9 vlist)
+ #:use-module (ice-9 popen)
#:export (%daemon-socket-file
nix-server?
@@ -85,6 +86,8 @@
current-build-output-port
+ register-path
+
%store-prefix
store-path?
direct-store-path?
@@ -694,6 +697,28 @@ is true."
(and (export-path server head port #:sign? sign?)
(loop tail)))))))
+(define* (register-path path
+ #:key (references '()) deriver)
+ "Register PATH as a valid store file, with REFERENCES as its list of
+references, and DERIVER as its deriver (.drv that led to it.) Return #t on
+success.
+
+Use with care as it directly modifies the store! This is primarily meant to
+be used internally by the daemon's build hook."
+ ;; Currently this is implemented by calling out to the fine C++ blob.
+ (catch 'system-error
+ (lambda ()
+ (let ((pipe (open-pipe* OPEN_WRITE %guix-register-program)))
+ (and pipe
+ (begin
+ (format pipe "~a~%~a~%~a~%"
+ path (or deriver "") (length references))
+ (for-each (cut format pipe "~a~%" <>) references)
+ (zero? (close-pipe pipe))))))
+ (lambda args
+ ;; Failed to run %GUIX-REGISTER-PROGRAM.
+ #f)))
+
;;;
;;; Store paths.