diff options
Diffstat (limited to 'guix/scripts/deploy.scm')
| -rw-r--r-- | guix/scripts/deploy.scm | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/guix/scripts/deploy.scm b/guix/scripts/deploy.scm index 27478eabc0..2c76645173 100644 --- a/guix/scripts/deploy.scm +++ b/guix/scripts/deploy.scm @@ -76,6 +76,9 @@ Perform the deployment specified by FILE.\n")) (lambda args (show-version-and-exit "guix deploy"))) + (option '(#\n "dry-run") #f #f + (lambda (opt name arg result) + (alist-cons 'dry-run? #t result))) (option '(#\x "execute") #f #f (lambda (opt name arg result) (alist-cons 'execute-command? #t result))) @@ -110,14 +113,20 @@ Perform the deployment specified by FILE.\n")) environment-modules)))) (load* file module))) -(define (show-what-to-deploy machines) +(define* (show-what-to-deploy machines #:key (dry-run? #f)) "Show the list of machines to deploy, MACHINES." (let ((count (length machines))) - (format (current-error-port) - (N_ "The following ~d machine will be deployed:~%" - "The following ~d machines will be deployed:~%" + (if dry-run? + (format (current-error-port) + (N_ "The following ~d machine would be deployed:~%" + "The following ~d machines would be deployed:~%" + count) count) - count) + (format (current-error-port) + (N_ "The following ~d machine will be deployed:~%" + "The following ~d machines will be deployed:~%" + count) + count)) (display (indented-string (fill-paragraph (string-join (map machine-display-name machines) ", ") @@ -241,6 +250,7 @@ otherwise." #:argument-handler handle-argument)) (file (assq-ref opts 'file)) (machines (and file (load-source-file file))) + (dry-run? (assoc-ref opts 'dry-run?)) (execute-command? (assoc-ref opts 'execute-command?))) (unless file (leave (G_ "missing deployment file argument~%"))) @@ -254,7 +264,8 @@ otherwise." (with-build-handler (build-notifier #:use-substitutes? (assoc-ref opts 'substitutes?) #:verbosity - (assoc-ref opts 'verbosity)) + (assoc-ref opts 'verbosity) + #:dry-run? dry-run?) (parameterize ((%graft? (assq-ref opts 'graft?))) (if execute-command? (match command @@ -270,7 +281,8 @@ otherwise." (_ (leave (G_ "'-x' specified but no command given~%")))) (begin - (show-what-to-deploy machines) - (map/accumulate-builds store - (cut deploy-machine* store <>) - machines)))))))))) + (show-what-to-deploy machines #:dry-run? dry-run?) + (unless dry-run? + (map/accumulate-builds store + (cut deploy-machine* store <>) + machines))))))))))) |