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authorLudovic Courtès <ludo@gnu.org>2017-05-10 15:25:59 +0200
committerLudovic Courtès <ludo@gnu.org>2017-05-10 22:09:08 +0200
commit7fd952e05203d975fcb6cdabd2f742ade1b31b66 (patch)
treef4c56daa415e6b8aaf5b9e4f46ae9ab009dc8dfd
parent30d2397f73d6fa9e77eed70ec6df8afd3b9f5f5e (diff)
scripts: Warn about old distro.
Fixes <http://bugs.gnu.org/25852>. Suggested by Mark H Weaver <mhw@netris.org>. * guix/scripts.scm (%distro-age-warning): New variable. (warn-about-old-distro): New procedure. * guix/scripts/package.scm (process-actions): Call 'warn-about-old-distro'. * guix/scripts/system.scm (process-action): Likewise.
-rw-r--r--guix/scripts.scm49
-rw-r--r--guix/scripts/package.scm2
-rw-r--r--guix/scripts/system.scm2
3 files changed, 51 insertions, 2 deletions
diff --git a/guix/scripts.scm b/guix/scripts.scm
index da35e71ac2..8c8c8ef9c9 100644
--- a/guix/scripts.scm
+++ b/guix/scripts.scm
@@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2017 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2014 Deck Pickard <deck.r.pickard@gmail.com>
;;; Copyright © 2015, 2016 Alex Kost <alezost@gmail.com>
;;;
@@ -27,13 +27,16 @@
#:use-module (guix packages)
#:use-module (guix derivations)
#:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-19)
#:use-module (srfi srfi-37)
#:use-module (ice-9 match)
#:export (args-fold*
parse-command-line
maybe-build
build-package
- build-package-source))
+ build-package-source
+ %distro-age-warning
+ warn-about-old-distro))
;;; Commentary:
;;;
@@ -136,4 +139,46 @@ Show what and how will/would be built."
#:dry-run? dry-run?)
(return (show-derivation-outputs derivation))))))
+(define %distro-age-warning
+ ;; The age (in seconds) above which we warn that the distro is too old.
+ (make-parameter (match (and=> (getenv "GUIX_DISTRO_AGE_WARNING")
+ string->duration)
+ (#f (* 7 24 3600))
+ (age (time-second age)))))
+
+(define* (warn-about-old-distro #:optional (old (%distro-age-warning))
+ #:key (suggested-command
+ "guix package -u"))
+ "Emit a warning if Guix is older than OLD seconds."
+ (let-syntax ((false-if-not-found
+ (syntax-rules ()
+ ((_ exp)
+ (catch 'system-error
+ (lambda ()
+ exp)
+ (lambda args
+ (if (= ENOENT (system-error-errno args))
+ #f
+ (apply throw args))))))))
+ (define (seconds->days seconds)
+ (round (/ seconds (* 3600 24))))
+
+ (define age
+ (match (false-if-not-found
+ (lstat (string-append (config-directory) "/latest")))
+ (#f #f)
+ (stat (- (time-second (current-time time-utc))
+ (stat:mtime stat)))))
+
+ (when (and age (>= age old))
+ (warning (N_ "Your Guix installation is ~a days old.\n"
+ "Your Guix installation is ~a day old.\n"
+ (seconds->days age))
+ (seconds->days age)))
+ (when (or (not age) (>= age old))
+ (warning (G_ "Consider running 'guix pull' followed by
+'~a' to get up-to-date packages and security updates.\n")
+ suggested-command)
+ (newline (guix-warning-port)))))
+
;;; scripts.scm ends here
diff --git a/guix/scripts/package.scm b/guix/scripts/package.scm
index 92676c2228..1f3f49fc6f 100644
--- a/guix/scripts/package.scm
+++ b/guix/scripts/package.scm
@@ -859,6 +859,8 @@ processed, #f otherwise."
(manifest-transaction-install step2)))))
(new (manifest-perform-transaction manifest step3)))
+ (warn-about-old-distro)
+
(unless (manifest-transaction-null? step3)
(show-manifest-transaction store manifest step3
#:dry-run? dry-run?)
diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm
index 2872bcae6b..9c09767508 100644
--- a/guix/scripts/system.scm
+++ b/guix/scripts/system.scm
@@ -847,6 +847,8 @@ resulting from command-line parsing."
((shepherd-graph)
(export-shepherd-graph os (current-output-port)))
(else
+ (warn-about-old-distro #:suggested-command
+ "guix system reconfigure")
(perform-action action os
#:dry-run? dry?
#:derivations-only? (assoc-ref opts