guix/tests/profiles.scm
Ludovic Courtès 36c99429a3
union: Gracefully handle dangling symlinks in the input.
Fixes <http://bugs.gnu.org/26949>.
Reported by Pjotr Prins <pjotr.public12@thebird.nl>.

* guix/build/union.scm (file-is-directory?): Return #f when FILE does
not exist or is a dangling symlink.
(file=?): Pass #f as a second argument to 'stat'; return #f when both
ST1 or ST2 is #f.
* tests/profiles.scm (test-equalm): New macro.
("union vs. dangling symlink"): New test.
2017-05-20 10:17:14 +02:00

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2014 Alex Kost <alezost@gmail.com>
;;;
;;; 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-profiles)
#:use-module (guix tests)
#:use-module (guix profiles)
#:use-module (guix store)
#:use-module (guix monads)
#:use-module (guix grafts)
#:use-module (guix packages)
#:use-module (guix derivations)
#:use-module (guix build-system trivial)
#:use-module (gnu packages bootstrap)
#:use-module ((gnu packages base) #:prefix packages:)
#:use-module ((gnu packages guile) #:prefix packages:)
#:use-module (ice-9 match)
#:use-module (ice-9 regex)
#:use-module (ice-9 popen)
#:use-module (rnrs io ports)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-64))
;; Test the (guix profiles) module.
(define %store
(open-connection-for-tests))
;; Globally disable grafts because they can trigger early builds.
(%graft? #f)
(define-syntax-rule (test-assertm name exp)
(test-assert name
(run-with-store %store exp
#:guile-for-build (%guile-for-build))))
(define-syntax-rule (test-equalm name value exp)
(test-equal name
value
(run-with-store %store exp
#:guile-for-build (%guile-for-build))))
;; Example manifest entries.
(define guile-1.8.8
(manifest-entry
(name "guile")
(version "1.8.8")
(item "/gnu/store/...")
(output "out")))
(define guile-2.0.9
(manifest-entry
(name "guile")
(version "2.0.9")
(item "/gnu/store/...")
(output "out")))
(define guile-2.0.9:debug
(manifest-entry (inherit guile-2.0.9)
(output "debug")))
(define glibc
(manifest-entry
(name "glibc")
(version "2.19")
(item "/gnu/store/...")
(output "out")))
(test-begin "profiles")
(test-assert "manifest-installed?"
(let ((m (manifest (list guile-2.0.9 guile-2.0.9:debug))))
(and (manifest-installed? m (manifest-pattern (name "guile")))
(manifest-installed? m (manifest-pattern
(name "guile") (output "debug")))
(manifest-installed? m (manifest-pattern
(name "guile") (output "out")
(version "2.0.9")))
(not (manifest-installed?
m (manifest-pattern (name "guile") (version "1.8.8"))))
(not (manifest-installed?
m (manifest-pattern (name "guile") (output "foobar")))))))
(test-assert "manifest-matching-entries"
(let* ((e (list guile-2.0.9 guile-2.0.9:debug))
(m (manifest e)))
(and (null? (manifest-matching-entries m
(list (manifest-pattern
(name "python")))))
(equal? e
(manifest-matching-entries m
(list (manifest-pattern
(name "guile")
(output #f)))))
(equal? (list guile-2.0.9)
(manifest-matching-entries m
(list (manifest-pattern
(name "guile")
(version "2.0.9"))))))))
(test-assert "manifest-remove"
(let* ((m0 (manifest (list guile-2.0.9 guile-2.0.9:debug)))
(m1 (manifest-remove m0
(list (manifest-pattern (name "guile")))))
(m2 (manifest-remove m1
(list (manifest-pattern (name "guile"))))) ; same
(m3 (manifest-remove m2
(list (manifest-pattern
(name "guile") (output "debug")))))
(m4 (manifest-remove m3
(list (manifest-pattern (name "guile"))))))
(match (manifest-entries m2)
((($ <manifest-entry> "guile" "2.0.9" "debug"))
(and (equal? m1 m2)
(null? (manifest-entries m3))
(null? (manifest-entries m4)))))))
(test-assert "manifest-add"
(let* ((m0 (manifest '()))
(m1 (manifest-add m0 (list guile-1.8.8)))
(m2 (manifest-add m1 (list guile-2.0.9)))
(m3 (manifest-add m2 (list guile-2.0.9:debug)))
(m4 (manifest-add m3 (list guile-2.0.9:debug))))
(and (match (manifest-entries m1)
((($ <manifest-entry> "guile" "1.8.8" "out")) #t)
(_ #f))
(match (manifest-entries m2)
((($ <manifest-entry> "guile" "2.0.9" "out")) #t)
(_ #f))
(equal? m3 m4))))
(test-assert "manifest-perform-transaction"
(let* ((m0 (manifest (list guile-2.0.9 guile-2.0.9:debug)))
(t1 (manifest-transaction
(install (list guile-1.8.8))
(remove (list (manifest-pattern (name "guile")
(output "debug"))))))
(t2 (manifest-transaction
(remove (list (manifest-pattern (name "guile")
(version "2.0.9")
(output #f))))))
(m1 (manifest-perform-transaction m0 t1))
(m2 (manifest-perform-transaction m1 t2))
(m3 (manifest-perform-transaction m0 t2)))
(and (match (manifest-entries m1)
((($ <manifest-entry> "guile" "1.8.8" "out")) #t)
(_ #f))
(equal? m1 m2)
(null? (manifest-entries m3)))))
(test-assert "manifest-transaction-effects"
(let* ((m0 (manifest (list guile-1.8.8)))
(t (manifest-transaction
(install (list guile-2.0.9 glibc))
(remove (list (manifest-pattern (name "coreutils")))))))
(let-values (((remove install upgrade downgrade)
(manifest-transaction-effects m0 t)))
(and (null? remove) (null? downgrade)
(equal? (list glibc) install)
(equal? (list (cons guile-1.8.8 guile-2.0.9)) upgrade)))))
(test-assert "manifest-transaction-effects and downgrades"
(let* ((m0 (manifest (list guile-2.0.9)))
(t (manifest-transaction (install (list guile-1.8.8)))))
(let-values (((remove install upgrade downgrade)
(manifest-transaction-effects m0 t)))
(and (null? remove) (null? install) (null? upgrade)
(equal? (list (cons guile-2.0.9 guile-1.8.8)) downgrade)))))
(test-assert "manifest-transaction-effects and pseudo-upgrades"
(let* ((m0 (manifest (list guile-2.0.9)))
(t (manifest-transaction (install (list guile-2.0.9)))))
(let-values (((remove install upgrade downgrade)
(manifest-transaction-effects m0 t)))
(and (null? remove) (null? install) (null? downgrade)
(equal? (list (cons guile-2.0.9 guile-2.0.9)) upgrade)))))
(test-assert "manifest-transaction-null?"
(manifest-transaction-null? (manifest-transaction)))
(test-assertm "profile-derivation"
(mlet* %store-monad
((entry -> (package->manifest-entry %bootstrap-guile))
(guile (package->derivation %bootstrap-guile))
(drv (profile-derivation (manifest (list entry))
#:hooks '()
#:locales? #f))
(profile -> (derivation->output-path drv))
(bindir -> (string-append profile "/bin"))
(_ (built-derivations (list drv))))
(return (and (file-exists? (string-append bindir "/guile"))
(string=? (dirname (readlink bindir))
(derivation->output-path guile))))))
(test-assertm "profile-derivation, inputs"
(mlet* %store-monad
((entry -> (package->manifest-entry packages:glibc "debug"))
(drv (profile-derivation (manifest (list entry))
#:hooks '()
#:locales? #f)))
(return (derivation-inputs drv))))
(test-assertm "profile-derivation, cross-compilation"
(mlet* %store-monad
((manifest -> (packages->manifest (list packages:sed packages:grep)))
(target -> "arm-linux-gnueabihf")
(grep (package->cross-derivation packages:grep target))
(sed (package->cross-derivation packages:sed target))
(locales (package->derivation packages:glibc-utf8-locales))
(drv (profile-derivation manifest
#:hooks '()
#:locales? #t
#:target target)))
(define (find-input name)
(let ((name (string-append name ".drv")))
(any (lambda (input)
(let ((input (derivation-input-path input)))
(and (string-suffix? name input) input)))
(derivation-inputs drv))))
;; The inputs for grep and sed should be cross-build derivations, but that
;; for the glibc-utf8-locales should be a native build.
(return (and (string=? (derivation-system drv) (%current-system))
(string=? (find-input (package-full-name packages:grep))
(derivation-file-name grep))
(string=? (find-input (package-full-name packages:sed))
(derivation-file-name sed))
(string=? (find-input
(package-full-name packages:glibc-utf8-locales))
(derivation-file-name locales))))))
(test-assert "package->manifest-entry defaults to \"out\""
(let ((outputs (package-outputs packages:glibc)))
(equal? (manifest-entry-output
(package->manifest-entry (package
(inherit packages:glibc)
(outputs (reverse outputs)))))
(manifest-entry-output
(package->manifest-entry packages:glibc))
"out")))
(test-assertm "profile-manifest, search-paths"
(mlet* %store-monad
((guile -> (package
(inherit %bootstrap-guile)
(native-search-paths
(package-native-search-paths packages:guile-2.0))))
(entry -> (package->manifest-entry guile))
(drv (profile-derivation (manifest (list entry))
#:hooks '()
#:locales? #f))
(profile -> (derivation->output-path drv)))
(mbegin %store-monad
(built-derivations (list drv))
;; Read the manifest back and make sure search paths are preserved.
(let ((manifest (profile-manifest profile)))
(match (manifest-entries manifest)
((result)
(return (equal? (manifest-entry-search-paths result)
(manifest-entry-search-paths entry)
(package-native-search-paths
packages:guile-2.0)))))))))
(test-assert "package->manifest-entry, search paths"
;; See <http://bugs.gnu.org/22073>.
(let ((mpl (@ (gnu packages python) python2-matplotlib)))
(lset= eq?
(package-transitive-native-search-paths mpl)
(manifest-entry-search-paths
(package->manifest-entry mpl)))))
(test-assertm "etc/profile"
;; Make sure we get an 'etc/profile' file that at least defines $PATH.
(mlet* %store-monad
((guile -> (package
(inherit %bootstrap-guile)
(native-search-paths
(package-native-search-paths packages:guile-2.0))))
(entry -> (package->manifest-entry guile))
(drv (profile-derivation (manifest (list entry))
#:hooks '()
#:locales? #f))
(profile -> (derivation->output-path drv)))
(mbegin %store-monad
(built-derivations (list drv))
(let* ((pipe (open-input-pipe
(string-append "unset GUIX_PROFILE; "
;; 'source' is a Bashism; use '.' (dot).
". " profile "/etc/profile; "
;; Don't try to parse set(1) output because
;; it differs among shells; just use echo.
"echo $PATH")))
(path (get-string-all pipe)))
(return
(and (zero? (close-pipe pipe))
(string-contains path (string-append profile "/bin"))))))))
(test-assertm "etc/profile when etc/ already exists"
;; Here 'union-build' makes the profile's etc/ a symlink to the package's
;; etc/ directory, which makes it read-only. Make sure the profile build
;; handles that.
(mlet* %store-monad
((thing -> (dummy-package "dummy"
(build-system trivial-build-system)
(arguments
`(#:guile ,%bootstrap-guile
#:builder
(let ((out (assoc-ref %outputs "out")))
(mkdir out)
(mkdir (string-append out "/etc"))
(call-with-output-file (string-append out "/etc/foo")
(lambda (port)
(display "foo!" port))))))))
(entry -> (package->manifest-entry thing))
(drv (profile-derivation (manifest (list entry))
#:hooks '()
#:locales? #f))
(profile -> (derivation->output-path drv)))
(mbegin %store-monad
(built-derivations (list drv))
(return (and (file-exists? (string-append profile "/etc/profile"))
(string=? (call-with-input-file
(string-append profile "/etc/foo")
get-string-all)
"foo!"))))))
(test-assertm "etc/profile when etc/ is a symlink"
;; When etc/ is a symlink, the unsymlink code in 0.8.2 would fail
;; gracelessly because 'scandir' would return #f.
(mlet* %store-monad
((thing -> (dummy-package "dummy"
(build-system trivial-build-system)
(arguments
`(#:guile ,%bootstrap-guile
#:builder
(let ((out (assoc-ref %outputs "out")))
(mkdir out)
(mkdir (string-append out "/foo"))
(symlink "foo" (string-append out "/etc"))
(call-with-output-file (string-append out "/etc/bar")
(lambda (port)
(display "foo!" port))))))))
(entry -> (package->manifest-entry thing))
(drv (profile-derivation (manifest (list entry))
#:hooks '()
#:locales? #f))
(profile -> (derivation->output-path drv)))
(mbegin %store-monad
(built-derivations (list drv))
(return (and (file-exists? (string-append profile "/etc/profile"))
(string=? (call-with-input-file
(string-append profile "/etc/bar")
get-string-all)
"foo!"))))))
(test-equalm "union vs. dangling symlink" ;<https://bugs.gnu.org/26949>
"does-not-exist"
(mlet* %store-monad
((thing1 -> (dummy-package "dummy"
(build-system trivial-build-system)
(arguments
`(#:guile ,%bootstrap-guile
#:builder
(let ((out (assoc-ref %outputs "out")))
(mkdir out)
(symlink "does-not-exist"
(string-append out "/dangling"))
#t)))))
(thing2 -> (package (inherit thing1) (name "dummy2")))
(drv (profile-derivation (packages->manifest
(list thing1 thing2))
#:hooks '()
#:locales? #f))
(profile -> (derivation->output-path drv)))
(mbegin %store-monad
(built-derivations (list drv))
(return (readlink (readlink (string-append profile "/dangling")))))))
(test-end "profiles")
;;; Local Variables:
;;; eval: (put 'dummy-package 'scheme-indent-function 1)
;;; End: