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-rw-r--r--gnu/services/herd.scm7
1 files changed, 6 insertions, 1 deletions
diff --git a/gnu/services/herd.scm b/gnu/services/herd.scm
index 2207b2d34b..112a7dc104 100644
--- a/gnu/services/herd.scm
+++ b/gnu/services/herd.scm
@@ -25,6 +25,7 @@
#:use-module (srfi srfi-35)
#:use-module (ice-9 match)
#:export (%shepherd-socket-file
+ shepherd-message-port
shepherd-error?
service-not-found-error?
@@ -140,8 +141,12 @@ does not denote an error."
(#f ;not an error
#t)))
+(define shepherd-message-port
+ ;; Port where messages coming from shepherd are printed.
+ (make-parameter (current-error-port)))
+
(define (display-message message)
- (format (current-error-port) "shepherd: ~a~%" message))
+ (format (shepherd-message-port) "shepherd: ~a~%" message))
(define* (invoke-action service action arguments cont)
"Invoke ACTION on SERVICE with ARGUMENTS. On success, call CONT with the