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02/09: inferior: Adjust to protocol (0 1).


From: guix-commits
Subject: 02/09: inferior: Adjust to protocol (0 1).
Date: Thu, 19 Mar 2020 10:14:29 -0400 (EDT)

civodul pushed a commit to branch master
in repository guix.

commit ec0a8661728f915c21058076327b398ac5c38bbe
Author: Ludovic Court├Ęs <address@hidden>
AuthorDate: Sun Mar 15 14:34:01 2020 +0100

    inferior: Adjust to protocol (0 1).
    
    * guix/inferior.scm (port->inferior): For protocol (0 x ...), where x >= 1,
    send the (() repl-version ...) form.
---
 guix/inferior.scm | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/guix/inferior.scm b/guix/inferior.scm
index 6b685ec..ec8ff8d 100644
--- a/guix/inferior.scm
+++ b/guix/inferior.scm
@@ -159,6 +159,15 @@ inferior."
      (letrec ((result (inferior 'pipe pipe close (cons 0 rest)
                                 (delay (%inferior-packages result))
                                 (delay (%inferior-package-table result)))))
+
+       ;; For protocol (0 1) and later, send the protocol version we support.
+       (match rest
+         ((n _ ...)
+          (when (>= n 1)
+            (send-inferior-request '(() repl-version 0 1) result)))
+         (_
+          #t))
+
        (inferior-eval '(use-modules (guix)) result)
        (inferior-eval '(use-modules (gnu)) result)
        (inferior-eval '(use-modules (ice-9 match)) result)



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