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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014, 2015, 2017, 2018 Ludovic Courtès <ludo@gnu.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 (test-union)
#:use-module (guix tests)
#:use-module (guix store)
#:use-module (guix utils)
#:use-module (guix derivations)
#:use-module (guix packages)
#:use-module (guix build union)
#:use-module ((guix build utils)
#:select (with-directory-excursion directory-exists?))
#:use-module (gnu packages bootstrap)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-64)
#:use-module (rnrs io ports)
#:use-module (ice-9 match))
;; Exercise the (guix build union) module.
(define %store
(open-connection-for-tests))
(test-begin "union")
(test-assert "union-build with symlink to directory"
;; http://bugs.gnu.org/17083
;; Here both ONE and TWO provide an element called 'foo', but in ONE it's a
;; directory whereas in TWO it's a symlink to a directory.
(let* ((one (build-expression->derivation
%store "one"
'(begin
(use-modules (guix build utils) (srfi srfi-26))
(let ((foo (string-append %output "/foo")))
(mkdir-p foo)
(call-with-output-file (string-append foo "/one")
(cut display "one" <>))))
#:modules '((guix build utils))))
(two (build-expression->derivation
%store "two"
'(begin
(use-modules (guix build utils) (srfi srfi-26))
(let ((foo (string-append %output "/foo"))
(bar (string-append %output "/bar")))
(mkdir-p bar)
(call-with-output-file (string-append bar "/two")
(cut display "two" <>))
(symlink "bar" foo)))
#:modules '((guix build utils))))
(builder '(begin
(use-modules (guix build union))
(union-build (assoc-ref %outputs "out")
(list (assoc-ref %build-inputs "one")
(assoc-ref %build-inputs "two")))))
(drv
(build-expression->derivation %store "union-collision-symlink"
builder
#:inputs `(("one" ,one) ("two" ,two))
#:modules '((guix build union)))))
(and (build-derivations %store (list drv))
(with-directory-excursion (pk (derivation->output-path drv))
(and (string=? "one"
(call-with-input-file "foo/one" get-string-all))
(string=? "two"
(call-with-input-file "foo/two" get-string-all))
(string=? "two"
(call-with-input-file "bar/two" get-string-all))
(not (file-exists? "bar/one")))))))
(test-skip (if (and %store (network-reachable?))
0
1))
(test-assert "union-build"
(let* ((inputs (map (match-lambda
((name package)
`(,name ,(package-derivation %store package))))
;; Purposefully leave duplicate entries.
(filter (compose package? cadr)
(append (%bootstrap-inputs)
(take (%bootstrap-inputs) 3)))))
(builder `(begin
(use-modules (guix build union))
(union-build (assoc-ref %outputs "out")
(map cdr %build-inputs))))
(drv
(build-expression->derivation %store "union-test"
builder
#:inputs inputs
#:modules '((guix build union)))))
(and (build-derivations %store (list (pk 'drv drv)))
(with-directory-excursion (derivation->output-path drv)
(and (file-exists? "bin/touch")
(file-exists? "bin/gcc")
(file-exists? "bin/ld")
(file-exists? "lib/libc.so")
(directory-exists? "lib/gcc")
(file-exists? "include/unistd.h")
;; The 'include/c++' sub-directory is only found in
;; gcc-bootstrap, so it should be unified in a
;; straightforward way, without traversing it.
(eq? 'symlink (stat:type (lstat "include/c++")))
;; Conversely, several inputs have a 'bin' sub-directory, so
;; unifying it requires traversing them all, and creating a
;; new 'bin' sub-directory in the profile.
(eq? 'directory (stat:type (lstat "bin"))))))))
(test-assert "union-build collision first & last"
(let* ((guile (package-derivation %store %bootstrap-guile))
(fake (build-expression->derivation
%store "fake-guile"
'(begin
(use-modules (guix build utils))
(let ((out (assoc-ref %outputs "out")))
(mkdir-p (string-append out "/bin"))
(call-with-output-file (string-append out "/bin/guile")
(const #t))))
#:modules '((guix build utils))))
(builder (lambda (policy)
`(begin
(use-modules (guix build union)
(srfi srfi-1))
(union-build (assoc-ref %outputs "out")
(map cdr %build-inputs)
#:resolve-collision ,policy))))
(drv1
(build-expression->derivation %store "union-first"
(builder 'first)
#:inputs `(("guile" ,guile)
("fake" ,fake))
#:modules '((guix build union))))
(drv2
(build-expression->derivation %store "union-last"
(builder 'last)
#:inputs `(("guile" ,guile)
("fake" ,fake))
#:modules '((guix build union)))))
(and (build-derivations %store (list drv1 drv2))
(with-directory-excursion (derivation->output-path drv1)
(string=? (readlink "bin/guile")
(string-append (derivation->output-path guile)
"/bin/guile")))
(with-directory-excursion (derivation->output-path drv2)
(string=? (readlink "bin/guile")
(string-append (derivation->output-path fake)
"/bin/guile"))))))
(test-assert "union-build #:create-all-directories? #t"
(let* ((build `(begin
(use-modules (guix build union))
(union-build (assoc-ref %outputs "out")
(map cdr %build-inputs)
#:create-all-directories? #t)))
(input (package-derivation %store %bootstrap-guile))
(drv (build-expression->derivation %store "union-test-all-dirs"
build
#:modules '((guix build union))
#:inputs `(("g" ,input)))))
(and (build-derivations %store (list drv))
(with-directory-excursion (derivation->output-path drv)
;; Even though there's only one input to the union,
;; #:create-all-directories? #t must have created bin/ rather than
;; making it a symlink to Guile's bin/.
(and (file-exists? "bin/guile")
(file-is-directory? "bin")
(eq? 'symlink (stat:type (lstat "bin/guile"))))))))
(letrec-syntax ((test-relative-file-name
(syntax-rules (=>)
((_ (reference file => expected) rest ...)
(begin
(test-equal (string-append "relative-file-name "
reference " " file)
expected
(relative-file-name reference file))
(test-relative-file-name rest ...)))
((_)
#t))))
(test-relative-file-name
("/a/b" "/a/c/d" => "../c/d")
("/a/b" "/a/b" => "")
("/a/b" "/a" => "..")
("/a/b" "/a/b/c/d" => "c/d")
("/a/b/c" "/a/d/e/f" => "../../d/e/f")))
(test-end)
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