;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2015, 2017 Ludovic Courtès ;;; Copyright © 2020 Maxim Cournoyer ;;; ;;; This file is part of GNU Guix. ;;; ;;; GNU Guix is free software; you can redistribute it and/or modify it ;;; under the terms of the GNU General Public License as published by ;;; the Free Software Foundation; either version 3 of the License, or (at ;;; your option) any later version. ;;; ;;; GNU Guix is distributed in the hope that it will be useful, but ;;; WITHOUT ANY WARRANTY; without even the implied warranty of ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;;; GNU General Public License for more details. ;;; ;;; You should have received a copy of the GNU General Public License ;;; along with GNU Guix. If not, see . (define-module (test-file-systems) #:use-module (guix store) #:use-module (guix modules) #:use-module (gnu system file-systems) #:use-module (srfi srfi-1) #:use-module (srfi srfi-64) #:use-module (ice-9 match)) ;; Test the (gnu system file-systems) module. (test-begin "file-systems") (test-assert "file-system-needed-for-boot?" (let-syntax ((dummy-fs (syntax-rules () ((_ directory) (file-system (device "foo") (mount-point directory) (type "ext4")))))) (parameterize ((%store-prefix "/gnu/guix/store")) (and (file-system-needed-for-boot? (dummy-fs "/")) (file-system-needed-for-boot? (dummy-fs "/gnu")) (file-system-needed-for-boot? (dummy-fs "/gnu/guix")) (file-system-needed-for-boot? (dummy-fs "/gnu/guix/store")) (not (file-system-needed-for-boot? (dummy-fs "/gnu/guix/store/foo"))) (not (file-system-needed-for-boot? (dummy-fs "/gn"))) (not (file-system-needed-for-boot? (file-system (inherit (dummy-fs (%store-prefix))) (device "/foo") (flags '(bind-mount read-only))))))))) (test-assert "does not pull (guix config)" ;; This module is meant both for the host side and "build side", so make ;; sure it doesn't pull in (guix config), which depends on the user's ;; config. (not (member '(guix config) (source-module-closure '((gnu system file-systems)))))) (test-equal "does not pull (gnu packages …)" ;; Same story: (gnu packages …) should not be pulled. #f (find (match-lambda (('gnu 'packages _ ..1) #t) (_ #f)) (source-module-closure '((gnu system file-systems))))) (test-equal "file-system-options->alist" '("autodefrag" ("subvol" . "home") ("compress" . "lzo")) (file-system-options->alist "autodefrag,subvol=home,compress=lzo")) (test-equal "file-system-options->alist (#f)" '() (file-system-options->alist #f)) (test-equal "alist->file-system-options" "autodefrag,subvol=root,compress=lzo" (alist->file-system-options '("autodefrag" ("subvol" . "root") ("compress" . "lzo")))) (test-equal "alist->file-system-options (null)" #f (alist->file-system-options '())) ;;; ;;; Btrfs related. ;;; (define %btrfs-root-subvolume (file-system (device (file-system-label "btrfs-pool")) (mount-point "/") (type "btrfs") (options "subvol=rootfs,compress=zstd"))) (define %btrfs-store-subvolid (file-system (device (file-system-label "btrfs-pool")) (mount-point "/gnu/store") (type "btrfs") (options "subvolid=10,compress=zstd") (dependencies (list %btrfs-root-subvolume)))) (define %btrfs-store-subvolume (file-system (device (file-system-label "btrfs-pool")) (mount-point "/gnu/store") (type "btrfs") (options "subvol=/some/nested/file/name") (dependencies (list %btrfs-root-subvolume)))) (test-assert "btrfs-subvolume? (subvol)" (btrfs-subvolume? %btrfs-root-subvolume)) (test-assert "btrfs-subvolume? (subvolid)" (btrfs-subvolume? %btrfs-store-subvolid)) (test-equal "btrfs-store-subvolume-file-name" "/some/nested/file/name" (parameterize ((%store-prefix "/gnu/store")) (btrfs-store-subvolume-file-name (list %btrfs-root-subvolume %btrfs-store-subvolume)))) (test-error "btrfs-store-subvolume-file-name (subvolid)" (parameterize ((%store-prefix "/gnu/store")) (btrfs-store-subvolume-file-name (list %btrfs-root-subvolume %btrfs-store-subvolid)))) (test-end) 2020-12-15nar: Deduplicate files right as they are restored.Ludovic Courtès This avoids having to traverse and re-read the files that we have just restored, thereby reducing I/O. * guix/serialization.scm (dump-file): New procedure. (restore-file): Add #:dump-file parameter and honor it. * guix/store/deduplication.scm (tee, dump-file/deduplicate): New procedures. * guix/nar.scm (restore-one-item): Pass #:dump-file to 'restore-file'. (finalize-store-file): Pass #:deduplicate? #f to 'register-items'. * tests/nar.scm <top level>: Call 'setenv' to set "NIX_STORE". 2020-12-15serialization: 'restore-file' sets canonical timestamp and permissions.Ludovic Courtès * guix/serialization.scm (restore-file): Set the permissions and mtime of FILE. * guix/nar.scm (finalize-store-file): Pass #:reset-timestamps? #f to 'register-items'. * tests/nar.scm (rm-rf): Add 'chmod' calls to ensure files are writable. ("write-file + restore-file with symlinks"): Ensure every file in OUTPUT passes 'canonical-file?'. * tests/guix-archive.sh: Run "chmod -R +w" before "rm -rf". 2020-12-15serialization: 'fold-archive' notifies about directory processing completion.Ludovic Courtès * guix/serialization.scm (fold-archive): Call PROC with a 'directory-complete tag when done with a directory. (restore-file): Handle it. * guix/scripts/archive.scm (list-contents): Likewise. * guix/scripts/challenge.scm (archive-contents): Likewise. * tests/nar.scm ("write-file-tree + fold-archive"): Adjust accordingly.