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authorzimoun <zimon.toutoune@gmail.com>2022-05-30 15:07:14 +0200
committerLudovic Courtès <ludo@gnu.org>2022-06-04 12:04:23 +0200
commit104b4e25ab7da5697f2f6f1ddfdd4955f05afece (patch)
tree108b8d74c15c383ca4d26c04b09e13568971012f
parentc332f1f4fbe8c743a2ca3c5c6fcec042e98a503e (diff)
downloadguix-patches-104b4e25ab7da5697f2f6f1ddfdd4955f05afece.tar
guix-patches-104b4e25ab7da5697f2f6f1ddfdd4955f05afece.tar.gz
cache: Catch invalid 'last-expiry-cleanup'.
Fixes <http://issues.guix.gnu.org/55638>. * guix/cache.scm (maybe-remove-expired-cache-entries)[last-expiry-date]: Use 'get-string-all' + 'string->number' instead of 'read'; ignore invalid numbers. * tests/cache.scm ("maybe-remove-expired-cache-entries, empty cache") ("maybe-remove-expired-cache-entries, corrupted cache"): New tests. Co-authored-by: Ludovic Courtès <ludo@gnu.org>
-rw-r--r--guix/cache.scm9
-rw-r--r--tests/cache.scm15
2 files changed, 22 insertions, 2 deletions
diff --git a/guix/cache.scm b/guix/cache.scm
index 51009809bd..be0de90e67 100644
--- a/guix/cache.scm
+++ b/guix/cache.scm
@@ -1,5 +1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2022 Simon Tournier <zimon.toutoune@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -17,9 +18,11 @@
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix cache)
+ #:use-module ((guix utils) #:select (with-atomic-file-output))
#:use-module (srfi srfi-19)
#:use-module (srfi srfi-26)
#:use-module (ice-9 match)
+ #:use-module ((ice-9 textual-ports) #:select (get-string-all))
#:export (obsolete?
delete-file*
file-expiration-time
@@ -93,7 +96,9 @@ CLEANUP-PERIOD denotes the minimum time between two cache cleanups."
(define last-expiry-date
(catch 'system-error
(lambda ()
- (call-with-input-file expiry-file read))
+ (or (string->number
+ (call-with-input-file expiry-file get-string-all))
+ 0))
(const 0)))
(when (obsolete? last-expiry-date now cleanup-period)
@@ -103,7 +108,7 @@ CLEANUP-PERIOD denotes the minimum time between two cache cleanups."
#:delete-entry delete-entry)
(catch 'system-error
(lambda ()
- (call-with-output-file expiry-file
+ (with-atomic-file-output expiry-file
(cute write (time-second now) <>)))
(lambda args
;; ENOENT means CACHE does not exist.
diff --git a/tests/cache.scm b/tests/cache.scm
index 80b44d69aa..d495ace2bd 100644
--- a/tests/cache.scm
+++ b/tests/cache.scm
@@ -1,5 +1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2022 Simon Tournier <zimon.toutoune@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -74,6 +75,20 @@
(lambda (port)
(display 0 port)))))
+(test-equal "maybe-remove-expired-cache-entries, empty cache"
+ '("a" "b" "c")
+ (test-cache-cleanup cache
+ (call-with-output-file (string-append cache "/last-expiry-cleanup")
+ (lambda (port)
+ (display "" port)))))
+
+(test-equal "maybe-remove-expired-cache-entries, corrupted cache"
+ '("a" "b" "c")
+ (test-cache-cleanup cache
+ (call-with-output-file (string-append cache "/last-expiry-cleanup")
+ (lambda (port)
+ (display "1\"34657890" port)))))
+
(test-end "cache")
;;; Local Variables: