Subject: [PATCH] machine: Add 'build-locally?' field for managed hosts.

From: [email-masked] (Jakob L. Kreuze)
Date: Wed, 07 Aug 2019 08:44:18 -0400

* gnu/machine/ssh.scm (machine-ssh-configuration-build-locally?): New
variable.
(managed-host-remote-eval): Pass 'build-locally?' to 'remote-eval'.
---
 gnu/machine/ssh.scm | 26 ++++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/gnu/machine/ssh.scm b/gnu/machine/ssh.scm
index ae312597dd..1f16d9a5ea 100644
--- a/gnu/machine/ssh.scm
+++ b/gnu/machine/ssh.scm
@@ -47,6 +47,7 @@
             machine-ssh-configuration
 
             machine-ssh-configuration-host-name
+            machine-ssh-configuration-build-locally?
             machine-ssh-configuration-port
             machine-ssh-configuration-user
             machine-ssh-configuration-session))
@@ -69,15 +70,17 @@
   make-machine-ssh-configuration
   machine-ssh-configuration?
   this-machine-ssh-configuration
-  (host-name machine-ssh-configuration-host-name) ; string
-  (port      machine-ssh-configuration-port       ; integer
-             (default 22))
-  (user      machine-ssh-configuration-user       ; string
-             (default "root"))
-  (identity  machine-ssh-configuration-identity   ; path to a private key
-             (default #f))
-  (session   machine-ssh-configuration-session    ; session
-             (default #f)))
+  (host-name      machine-ssh-configuration-host-name) ; string
+  (build-locally? machine-ssh-configuration-build-locally?
+                  (default #t))
+  (port           machine-ssh-configuration-port       ; integer
+                  (default 22))
+  (user           machine-ssh-configuration-user       ; string
+                  (default "root"))
+  (identity       machine-ssh-configuration-identity   ; path to a private key
+                  (default #f))
+  (session        machine-ssh-configuration-session    ; session
+                  (default #f)))
 
 (define (machine-ssh-session machine)
   "Return the SSH session that was given in MACHINE's configuration, or create
@@ -103,7 +106,10 @@ one from the configuration's parameters if one was not provided."
   "Internal implementation of 'machine-remote-eval' for MACHINE instances with
 an environment type of 'managed-host."
   (maybe-raise-unsupported-configuration-error machine)
-  (remote-eval exp (machine-ssh-session machine)))
+  (remote-eval exp (machine-ssh-session machine)
+               #:build-locally?
+               (machine-ssh-configuration-build-locally?
+                (machine-configuration machine))))
 
 
 ;;;
-- 
2.22.0