tests/union.scm

   1 ;;; GNU Guix --- Functional package management for GNU
   2 ;;; Copyright © 2012, 2013, 2014, 2015, 2017 Ludovic Courtès <ludo@gnu.org>
   3 ;;;
   4 ;;; This file is part of GNU Guix.
   5 ;;;
   6 ;;; GNU Guix is free software; you can redistribute it and/or modify it
   7 ;;; under the terms of the GNU General Public License as published by
   8 ;;; the Free Software Foundation; either version 3 of the License, or (at
   9 ;;; your option) any later version.
  10 ;;;
  11 ;;; GNU Guix is distributed in the hope that it will be useful, but
  12 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 ;;; GNU General Public License for more details.
  15 ;;;
  16 ;;; You should have received a copy of the GNU General Public License
  17 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 (define-module (test-union)
  20   #:use-module (guix tests)
  21   #:use-module (guix store)
  22   #:use-module (guix utils)
  23   #:use-module (guix derivations)
  24   #:use-module (guix packages)
  25   #:use-module (guix build union)
  26   #:use-module ((guix build utils)
  27                 #:select (with-directory-excursion directory-exists?))
  28   #:use-module (gnu packages bootstrap)
  29   #:use-module (srfi srfi-1)
  30   #:use-module (srfi srfi-64)
  31   #:use-module (rnrs io ports)
  32   #:use-module (ice-9 match))
  33
  34 ;; Exercise the (guix build union) module.
  35
  36 (define %store
  37   (open-connection-for-tests))
  38
  39 \f
  40 (test-begin "union")
  41
  42 (test-assert "union-build with symlink to directory"
  43   ;; http://bugs.gnu.org/17083
  44   ;; Here both ONE and TWO provide an element called 'foo', but in ONE it's a
  45   ;; directory whereas in TWO it's a symlink to a directory.
  46   (let* ((one     (build-expression->derivation
  47                    %store "one"
  48                    '(begin
  49                       (use-modules (guix build utils) (srfi srfi-26))
  50                       (let ((foo (string-append %output "/foo")))
  51                         (mkdir-p foo)
  52                         (call-with-output-file (string-append foo "/one")
  53                           (cut display "one" <>))))
  54                    #:modules '((guix build utils))))
  55          (two     (build-expression->derivation
  56                    %store "two"
  57                    '(begin
  58                       (use-modules (guix build utils) (srfi srfi-26))
  59                       (let ((foo (string-append %output "/foo"))
  60                             (bar (string-append %output "/bar")))
  61                         (mkdir-p bar)
  62                         (call-with-output-file (string-append bar "/two")
  63                           (cut display "two" <>))
  64                         (symlink "bar" foo)))
  65                    #:modules '((guix build utils))))
  66          (builder '(begin
  67                      (use-modules (guix build union))
  68
  69                      (union-build (assoc-ref %outputs "out")
  70                                   (list (assoc-ref %build-inputs "one")
  71                                         (assoc-ref %build-inputs "two")))))
  72          (drv
  73           (build-expression->derivation %store "union-collision-symlink"
  74                                         builder
  75                                         #:inputs `(("one" ,one) ("two" ,two))
  76                                         #:modules '((guix build union)))))
  77     (and (build-derivations %store (list drv))
  78          (with-directory-excursion (pk (derivation->output-path drv))
  79            (and (string=? "one"
  80                           (call-with-input-file "foo/one" get-string-all))
  81                 (string=? "two"
  82                           (call-with-input-file "foo/two" get-string-all))
  83                 (string=? "two"
  84                           (call-with-input-file "bar/two" get-string-all))
  85                 (not (file-exists? "bar/one")))))))
  86
  87 (test-skip (if (and %store (network-reachable?))
  88                0
  89                1))
  90
  91 (test-assert "union-build"
  92   (let* ((inputs  (map (match-lambda
  93                         ((name package)
  94                          `(,name ,(package-derivation %store package))))
  95
  96                        ;; Purposefully leave duplicate entries.
  97                        (append %bootstrap-inputs
  98                                (take %bootstrap-inputs 3))))
  99          (builder `(begin
 100                      (use-modules (guix build union))
 101                      (union-build (assoc-ref %outputs "out")
 102                                   (map cdr %build-inputs))))
 103          (drv
 104           (build-expression->derivation %store "union-test"
 105                                         builder
 106                                         #:inputs inputs
 107                                         #:modules '((guix build union)))))
 108     (and (build-derivations %store (list (pk 'drv drv)))
 109          (with-directory-excursion (derivation->output-path drv)
 110            (and (file-exists? "bin/touch")
 111                 (file-exists? "bin/gcc")
 112                 (file-exists? "bin/ld")
 113                 (file-exists? "lib/libc.so")
 114                 (directory-exists? "lib/gcc")
 115                 (file-exists? "include/unistd.h")
 116
 117                 ;; The 'include/c++' sub-directory is only found in
 118                 ;; gcc-bootstrap, so it should be unified in a
 119                 ;; straightforward way, without traversing it.
 120                 (eq? 'symlink (stat:type (lstat "include/c++")))
 121
 122                 ;; Conversely, several inputs have a 'bin' sub-directory, so
 123                 ;; unifying it requires traversing them all, and creating a
 124                 ;; new 'bin' sub-directory in the profile.
 125                 (eq? 'directory (stat:type (lstat "bin"))))))))
 126
 127 (test-assert "union-build #:create-all-directories? #t"
 128   (let* ((build  `(begin
 129                     (use-modules (guix build union))
 130                     (union-build (assoc-ref %outputs "out")
 131                                  (map cdr %build-inputs)
 132                                  #:create-all-directories? #t)))
 133          (input  (package-derivation %store %bootstrap-guile))
 134          (drv    (build-expression->derivation %store "union-test-all-dirs"
 135                                                build
 136                                                #:modules '((guix build union))
 137                                                #:inputs `(("g" ,input)))))
 138     (and (build-derivations %store (list drv))
 139          (with-directory-excursion (derivation->output-path drv)
 140            ;; Even though there's only one input to the union,
 141            ;; #:create-all-directories? #t must have created bin/ rather than
 142            ;; making it a symlink to Guile's bin/.
 143            (and (file-exists? "bin/guile")
 144                 (file-is-directory? "bin")
 145                 (eq? 'symlink (stat:type (lstat "bin/guile"))))))))
 146
 147 (test-end)