d921c742b7
Reported by Christopher Baines <guix@cbaines.net>.
* guix/cache.scm (maybe-remove-expired-cache-entries): Define
‘expiry-port’; create it with ‘lock-file’. Change ‘last-expiry-date’
accordingly. Write timestamp straight to ‘expiry-port’.
* tests/cache.scm ("maybe-remove-expired-cache-entries, cleanup needed
but lock taken"): New test.
Change-Id: I22441d9d2c4a339d3d3878de131864db5a0ae826
125 lines
4.4 KiB
Scheme
125 lines
4.4 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2017, 2020, 2024 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2022 Simon Tournier <zimon.toutoune@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (test-cache)
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#:use-module (guix cache)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-19)
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#:use-module (srfi srfi-64)
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#:use-module ((guix build syscalls) #:select (lock-file))
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#:use-module ((guix utils) #:select (call-with-temporary-directory))
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#:use-module ((rnrs io ports) #:select (get-string-all))
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#:use-module (ice-9 match))
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(test-begin "cache")
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(test-equal "remove-expired-cache-entries"
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'("o" "l" "d")
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(let* ((removed '())
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(now (time-second (current-time time-monotonic)))
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(ttl 100)
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(stamp (match-lambda
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((or "n" "e" "w") (+ now 100))
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((or "o" "l" "d") (- now 100))))
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(delete (lambda (entry)
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(set! removed (cons entry removed)))))
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(remove-expired-cache-entries (reverse '("n" "e" "w"
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"o" "l" "d"))
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#:entry-expiration stamp
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#:delete-entry delete)
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removed))
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(define-syntax-rule (test-cache-cleanup cache exp ...)
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(call-with-temporary-directory
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(lambda (cache)
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(let* ((deleted '())
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(delete! (lambda (entry)
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(set! deleted (cons entry deleted)))))
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exp ...
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(maybe-remove-expired-cache-entries cache
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(const '("a" "b" "c"))
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#:entry-expiration (const 0)
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#:delete-entry delete!)
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(reverse deleted)))))
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(test-equal "maybe-remove-expired-cache-entries, first cleanup"
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'("a" "b" "c")
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(test-cache-cleanup cache))
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(test-equal "maybe-remove-expired-cache-entries, no cleanup needed"
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'()
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(test-cache-cleanup cache
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(call-with-output-file (string-append cache "/last-expiry-cleanup")
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(lambda (port)
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(display (+ (time-second (current-time time-monotonic)) 100)
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port)))))
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(test-equal "maybe-remove-expired-cache-entries, cleanup needed"
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'("a" "b" "c")
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(test-cache-cleanup cache
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(call-with-output-file (string-append cache "/last-expiry-cleanup")
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(lambda (port)
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(display 0 port)))))
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(let ((pid #f))
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(test-equal "maybe-remove-expired-cache-entries, cleanup needed but lock taken"
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'()
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(test-cache-cleanup cache
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(let ((in+out (pipe)))
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(match (primitive-fork)
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(0 (dynamic-wind
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(const #t)
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(lambda ()
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(close-port (car in+out))
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(let ((port (lock-file
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(string-append cache "/last-expiry-cleanup"))))
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(display 0 port)
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(display "done!\n" (cdr in+out))
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(close-port (cdr in+out))
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(sleep 100)))
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(lambda ()
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(primitive-exit 0))))
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(n
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(set! pid n)
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(close-port (cdr in+out))
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(pk 'chr (get-string-all (car in+out)))
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(close-port (car in+out)))))))
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(when pid (kill pid SIGKILL)))
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(test-equal "maybe-remove-expired-cache-entries, empty cache"
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'("a" "b" "c")
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(test-cache-cleanup cache
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(call-with-output-file (string-append cache "/last-expiry-cleanup")
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(lambda (port)
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(display "" port)))))
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(test-equal "maybe-remove-expired-cache-entries, corrupted cache"
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'("a" "b" "c")
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(test-cache-cleanup cache
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(call-with-output-file (string-append cache "/last-expiry-cleanup")
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(lambda (port)
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(display "1\"34657890" port)))))
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(test-end "cache")
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;;; Local Variables:
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;;; eval: (put 'test-cache-cleanup 'scheme-indent-function 1)
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;;; End:
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