bf5bf5778c
* guix/store/database.scm (register-path): Add #:deduplicate? and call 'deduplicate' when it's true. (counting-wrapper-port, nar-sha256): Move to... * guix/store/deduplication.scm: ... here. New file. * tests/store-deduplication.scm: New file. * Makefile.am (STORE_MODULES): Add deduplication.scm. (SCM_TESTS) [HAVE_GUILE_SQLITE3]: Add store-deduplication.scm. Co-authored-by: Ludovic Courtès <ludo@gnu.org>
65 lines
2.5 KiB
Scheme
65 lines
2.5 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
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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-store-deduplication)
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#:use-module (guix tests)
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#:use-module (guix store deduplication)
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#:use-module (guix hash)
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#:use-module ((guix utils) #:select (call-with-temporary-directory))
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#:use-module (guix build utils)
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#:use-module (rnrs bytevectors)
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#:use-module (ice-9 binary-ports)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-64))
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(test-begin "store-deduplication")
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(test-equal "deduplicate"
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(cons* #t #f ;inode comparisons
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2 (make-list 5 6)) ;'nlink' values
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(call-with-temporary-directory
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(lambda (store)
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(let ((data (string->utf8 "Hello, world!"))
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(identical (map (lambda (n)
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(string-append store "/" (number->string n)))
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(iota 5)))
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(unique (string-append store "/unique")))
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(for-each (lambda (file)
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(call-with-output-file file
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(lambda (port)
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(put-bytevector port data))))
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identical)
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(call-with-output-file unique
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(lambda (port)
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(put-bytevector port (string->utf8 "This is unique."))))
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(for-each (lambda (file)
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(deduplicate file (sha256 data) #:store store))
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identical)
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(deduplicate unique (nar-sha256 unique) #:store store)
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;; (system (string-append "ls -lRia " store))
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(cons* (apply = (map (compose stat:ino stat) identical))
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(= (stat:ino (stat unique))
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(stat:ino (stat (car identical))))
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(stat:nlink (stat unique))
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(map (compose stat:nlink stat) identical))))))
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(test-end "store-deduplication")
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