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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012 Nikita Karetnikov <nikita@karetnikov.org>
;;;
;;; 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 <http://www.gnu.org/licenses/>.

(define-module (gnu packages check)
  #:use-module (gnu packages)
  #:use-module (guix licenses)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix build-system gnu))

(define-public check
  (package
    (name "check")
    (version "0.9.9")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "mirror://sourceforge/check/check/"
                          version "/check-" version ".tar.gz"))
      (sha256
       (base32
        "1jcahzrvxcnp5chdn2x46l0y4aba8d8yd70lljfin7h5knxrlyhs"))))
    (build-system gnu-build-system)
    (home-page "http://check.sourceforge.net/")
    (synopsis "Check, a unit testing framework for C")
    (description
     "Check is a unit testing framework for C. It features a simple
interface for defining unit tests, putting little in the way of the
developer.  Tests are run in a separate address space, so Check can
catch both assertion failures and code errors that cause segmentation
faults or other signals. The output from unit tests can be used within
source code editors and IDEs.")
    (license lgpl2.1+)))
error-on-dangling-symlink? ;; When the symbolic link points to a relative path, ;; checking if its target exists must be done relatively ;; to the link location. (unless (if (string-prefix? "/" old) (file-exists? old) (with-directory-excursion (dirname new*) (file-exists? old))) (error (format #f "symlink `~a' points to nonexistent \ file `~a'" new* old)))) (symlink old new*)) (lambda args ;; When doing 'guix system init' on the current '/', some ;; symlinks may already exists. Override them. (if (= EEXIST (system-error-errno args)) (begin (delete-file new*) (try)) (apply throw args))))))))) (lambda args ;; Usually we can only get here when installing to an existing root, ;; as with 'guix system init foo.scm /'. (format (current-error-port) "error: failed to evaluate directive: ~s~%" directive) (apply throw args))))) (define (directives store) "Return a list of directives to populate the root file system that will host STORE." `((directory ,store 0 0 #o1775) (directory "/etc") (directory "/var/log") ; for shepherd (directory "/var/guix/gcroots") (directory "/var/empty") ; for no-login accounts (directory "/var/db") ; for dhclient, etc. (directory "/mnt") (directory "/var/guix/profiles/per-user/root" 0 0) ;; Link to the initial system generation. ("/var/guix/profiles/system" -> "system-1-link") ("/var/guix/gcroots/booted-system" -> "/run/booted-system") ("/var/guix/gcroots/current-system" -> "/run/current-system") ("/var/guix/gcroots/profiles" -> "/var/guix/profiles") (directory "/bin") (directory "/tmp" 0 0 #o1777) ; sticky bit (directory "/var/tmp" 0 0 #o1777) (directory "/var/lock" 0 0 #o1777) (directory "/home" 0 0))) (define* (populate-root-file-system system target #:key (extras '())) "Make the essential non-store files and directories on TARGET. This includes /etc, /var, /run, /bin/sh, etc., and all the symlinks to SYSTEM. EXTRAS is a list of directives appended to the built-in directives to populate TARGET." ;; It's expected that some symbolic link targets do not exist yet, so do not ;; error on dangling links. (for-each (cut evaluate-populate-directive <> target #:error-on-dangling-symlink? #f) (append (directives (%store-directory)) extras)) ;; Add system generation 1. (let ((generation-1 (string-append target "/var/guix/profiles/system-1-link"))) (let try () (catch 'system-error (lambda () (symlink system generation-1)) (lambda args ;; If GENERATION-1 already exists, overwrite it. (if (= EEXIST (system-error-errno args)) (begin (delete-file generation-1) (try)) (apply throw args))))))) (define %root-profile "/var/guix/profiles/per-user/root") (define* (install-database-and-gc-roots root database profile #:key (profile-name "guix-profile")) "Install DATABASE, the store database, under directory ROOT. Create PROFILE-NAME and have it link to PROFILE, a store item." (define (scope file) (string-append root "/" file)) (define (mkdir-p* dir) (mkdir-p (scope dir))) (define (symlink* old new) (symlink old (scope new))) (install-file database (scope "/var/guix/db/")) (chmod (scope "/var/guix/db/db.sqlite") #o644) (mkdir-p* "/var/guix/profiles") (mkdir-p* "/var/guix/gcroots") (symlink* "/var/guix/profiles" "/var/guix/gcroots/profiles") ;; Make root's profile, which makes it a GC root. (mkdir-p* %root-profile) (symlink* profile (string-append %root-profile "/" profile-name "-1-link")) (symlink* (string-append profile-name "-1-link") (string-append %root-profile "/" profile-name))) (define* (populate-single-profile-directory directory #:key profile closure (profile-name "guix-profile") database) "Populate DIRECTORY with a store containing PROFILE, whose closure is given in the file called CLOSURE (as generated by #:references-graphs.) DIRECTORY is initialized to contain a single profile under /root pointing to PROFILE. When DATABASE is true, copy it to DIRECTORY/var/guix/db and create DIRECTORY/var/guix/gcroots and friends. PROFILE-NAME is the name of the profile being created under /var/guix/profiles, typically either \"guix-profile\" or \"current-guix\". This is used to create the self-contained tarballs with 'guix pack'." (define (scope file) (string-append directory "/" file)) (define (mkdir-p* dir) (mkdir-p (scope dir))) (define (symlink* old new) (symlink old (scope new))) ;; Populate the store. (populate-store (list closure) directory #:deduplicate? #f) (when database (install-database-and-gc-roots directory database profile #:profile-name profile-name)) (match profile-name ("guix-profile" (mkdir-p* "/root") (symlink* (string-append %root-profile "/guix-profile") "/root/.guix-profile")) ("current-guix" (mkdir-p* "/root/.config/guix") (symlink* (string-append %root-profile "/current-guix") "/root/.config/guix/current")) (_ #t))) (define (mount-cow-store target backing-directory) "Make the store copy-on-write, using TARGET as the backing store. This is useful when TARGET is on a hard disk, whereas the current store is on a RAM disk." (define (set-store-permissions directory) "Set the right perms on DIRECTORY to use it as the store." (chown directory 0 30000) ;use the fixed 'guixbuild' GID (chmod directory #o1775)) (let ((tmpdir (string-append target "/tmp"))) (mkdir-p tmpdir) (mount tmpdir "/tmp" "none" MS_BIND)) (let* ((rw-dir (string-append target backing-directory)) (work-dir (string-append rw-dir "/../.overlayfs-workdir"))) (mkdir-p rw-dir) (mkdir-p work-dir) (mkdir-p "/.rw-store") (set-store-permissions rw-dir) (set-store-permissions "/.rw-store") ;; Mount the overlay, then atomically make it the store. (mount "none" "/.rw-store" "overlay" 0 (string-append "lowerdir=" (%store-directory) "," "upperdir=" rw-dir "," "workdir=" work-dir)) (mount "/.rw-store" (%store-directory) "" MS_MOVE) (rmdir "/.rw-store"))) (define (umount* directory) "Unmount DIRECTORY, but retry a few times upon EBUSY." (let loop ((attempts 5)) (catch 'system-error (lambda () (umount directory)) (lambda args (if (and (= EBUSY (system-error-errno args)) (> attempts 0)) (begin (sleep 1) (loop (- attempts 1))) (apply throw args)))))) (define (unmount-cow-store target backing-directory) "Unmount copy-on-write store." (let ((tmp-dir "/remove")) (mkdir-p tmp-dir) (mount (%store-directory) tmp-dir "" MS_MOVE) ;; We might get EBUSY at this point, possibly because of lingering ;; processes with open file descriptors. Use 'umount*' to retry upon ;; EBUSY, leaving a bit of time. See <https://issues.guix.gnu.org/59884>. (umount* tmp-dir) (rmdir tmp-dir) (delete-file-recursively (string-append target backing-directory)))) ;;; install.scm ends here