From ed7b44370f71126087eb953f36aad8dc4c44109f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= Date: Mon, 24 Dec 2018 15:40:04 +0100 Subject: offload: Use (guix inferior) instead of (ssh dist node). Using inferiors and thus 'guix repl' simplifies setup on build machines (no need to worry about GUILE_LOAD_PATH etc.) Furthermore, the 'guix repl -t machine' protocol running in a remote pipe addresses several issues with the current implementation of nodes and RREPLs in Guile-SSH: fewer round trips, doesn't leave a 'guile --listen' process behind it, stateless (since a new process is started each time), more efficient (the SSH channel can be reused), more reliable (no 'pgrep', 'pkill', and shellology; see as an example.) * guix/ssh.scm (inferior-remote-eval): New procedure. (send-files): Use it instead of 'make-node' and 'node-eval'. * guix/scripts/offload.scm (node-guile-version): New procedure. (node-free-disk-space, transfer-and-offload, node-load) (choose-build-machine, assert-node-has-guix): Use 'remote-inferior' instead of 'make-node' and 'inferior-eval' instead of 'node-eval'. (assert-node-can-import, assert-node-can-export): Likewise, and add 'session' parameter. (check-machine-availability): Likewise, and add calls to 'close-inferior' and 'disconnect!'. (check-machine-status): Likewise. * doc/guix.texi (Daemon Offload Setup): Remove bit related to 'guile' in $PATH and $GUILE_LOAD_PATH; mention 'guix' alone. --- doc/guix.texi | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'doc/guix.texi') diff --git a/doc/guix.texi b/doc/guix.texi index f86a2885a7..c182995b2b 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -1051,13 +1051,11 @@ name, and they will be scheduled on matching build machines. @end table @end deftp -The @code{guile} command must be in the search path on the build -machines. In addition, the Guix modules must be in -@code{$GUILE_LOAD_PATH} on the build machine---you can check whether -this is the case by running: +The @command{guix} command must be in the search path on the build +machines. You can check whether this is the case by running: @example -ssh build-machine guile -c "'(use-modules (guix config))'" +ssh build-machine guix repl --version @end example There is one last thing to do once @file{machines.scm} is in place. As -- cgit v1.2.3