From 9c70c460a05b2bc60f3f3602f0a2dba0f79ce86c Mon Sep 17 00:00:00 2001 From: "Jakob L. Kreuze" Date: Thu, 15 Aug 2019 04:05:57 -0400 Subject: machine: Implement 'roll-back-machine'. * gnu/machine.scm (roll-back-machine, &deploy-error, deploy-error?) (deploy-error-should-roll-back) (deploy-error-captured-args): New variable. * gnu/machine/ssh.scm (roll-back-managed-host): New variable. * guix/scripts/deploy.scm (guix-deploy): Roll-back systems when a deployment fails. --- guix/scripts/deploy.scm | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) (limited to 'guix') diff --git a/guix/scripts/deploy.scm b/guix/scripts/deploy.scm index 81f2b33260..6a67985c8b 100644 --- a/guix/scripts/deploy.scm +++ b/guix/scripts/deploy.scm @@ -28,6 +28,8 @@ #:use-module (guix grafts) #:use-module (ice-9 format) #:use-module (srfi srfi-1) + #:use-module (srfi srfi-34) + #:use-module (srfi srfi-35) #:use-module (srfi srfi-37) #:export (guix-deploy)) @@ -88,7 +90,18 @@ Perform the deployment specified by FILE.\n")) (with-store store (set-build-options-from-command-line store opts) (for-each (lambda (machine) - (info (G_ "deploying to ~a...") (machine-display-name machine)) + (info (G_ "deploying to ~a...~%") + (machine-display-name machine)) (parameterize ((%graft? (assq-ref opts 'graft?))) - (run-with-store store (deploy-machine machine)))) + (guard (c ((message-condition? c) + (report-error (G_ "failed to deploy ~a: '~a'~%") + (machine-display-name machine) + (condition-message c))) + ((deploy-error? c) + (when (deploy-error-should-roll-back c) + (info (G_ "rolling back ~a...~%") + (machine-display-name machine)) + (run-with-store store (roll-back-machine machine))) + (apply throw (deploy-error-captured-args c)))) + (run-with-store store (deploy-machine machine))))) machines)))) -- cgit v1.2.3