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guix/tests/store.scm
Ludovic Courtès c63d94035f store: Add 'verify-store' RPC. 
* guix/store.scm (operation-id): Add 'verify-store'.
  (verify-store): New procedure.
  (set-build-options): Adjust comment.
* tests/store.scm ("verify-store", "verify-store + check-contents"): New
  tests.
2015-06-06 19:05:25 +02:00

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014, 2015 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-store)
#:use-module (guix tests)
#:use-module (guix store)
#:use-module (guix utils)
#:use-module (guix hash)
#:use-module (guix base32)
#:use-module (guix packages)
#:use-module (guix derivations)
#:use-module (guix serialization)
#:use-module (guix gexp)
#:use-module (gnu packages)
#:use-module (gnu packages bootstrap)
#:use-module (ice-9 match)
#:use-module (rnrs bytevectors)
#:use-module (rnrs io ports)
#:use-module (web uri)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-64))
;; Test the (guix store) module.
(define %store
(open-connection-for-tests))
(test-begin "store")
(test-equal "store-path-hash-part"
"283gqy39v3g9dxjy26rynl0zls82fmcg"
(store-path-hash-part
(string-append (%store-prefix)
"/283gqy39v3g9dxjy26rynl0zls82fmcg-guile-2.0.7")))
(test-equal "store-path-hash-part #f"
#f
(store-path-hash-part
(string-append (%store-prefix)
"/foo/bar/283gqy39v3g9dxjy26rynl0zls82fmcg-guile-2.0.7")))
(test-equal "store-path-package-name"
"guile-2.0.7"
(store-path-package-name
(string-append (%store-prefix)
"/283gqy39v3g9dxjy26rynl0zls82fmcg-guile-2.0.7")))
(test-equal "store-path-package-name #f"
#f
(store-path-package-name
"/foo/bar/283gqy39v3g9dxjy26rynl0zls82fmcg-guile-2.0.7"))
(test-assert "direct-store-path?"
(and (direct-store-path?
(string-append (%store-prefix)
"/283gqy39v3g9dxjy26rynl0zls82fmcg-guile-2.0.7"))
(not (direct-store-path?
(string-append
(%store-prefix)
"/283gqy39v3g9dxjy26rynl0zls82fmcg-guile-2.0.7/bin/guile")))
(not (direct-store-path? (%store-prefix)))))
(test-skip (if %store 0 13))
(test-assert "valid-path? live"
(let ((p (add-text-to-store %store "hello" "hello, world")))
(valid-path? %store p)))
(test-assert "valid-path? false"
(not (valid-path? %store
(string-append (%store-prefix) "/"
(make-string 32 #\e) "-foobar"))))
(test-assert "valid-path? error"
(with-store s
(guard (c ((nix-protocol-error? c) #t))
(valid-path? s "foo")
#f)))
(test-assert "valid-path? recovery"
;; Prior to Nix commit 51800e0 (18 Mar. 2014), the daemon would immediately
;; close the connection after receiving a 'valid-path?' RPC with a non-store
;; file name. See
;; <http://article.gmane.org/gmane.linux.distributions.nixos/12411> for
;; details.
(with-store s
(let-syntax ((true-if-error (syntax-rules ()
((_ exp)
(guard (c ((nix-protocol-error? c) #t))
exp #f)))))
(and (true-if-error (valid-path? s "foo"))
(true-if-error (valid-path? s "bar"))
(true-if-error (valid-path? s "baz"))
(true-if-error (valid-path? s "chbouib"))
(valid-path? s (add-text-to-store s "valid" "yeah"))))))
(test-assert "hash-part->path"
(let ((p (add-text-to-store %store "hello" "hello, world")))
(equal? (hash-part->path %store (store-path-hash-part p))
p)))
(test-assert "dead-paths"
(let ((p (add-text-to-store %store "random-text" (random-text))))
(->bool (member p (dead-paths %store)))))
;; FIXME: Find a test for `live-paths'.
;;
;; (test-assert "temporary root is in live-paths"
;; (let* ((p1 (add-text-to-store %store "random-text"
;; (random-text) '()))
;; (b (add-text-to-store %store "link-builder"
;; (format #f "echo ~a > $out" p1)
;; '()))
;; (d1 (derivation %store "link"
;; "/bin/sh" `("-e" ,b)
;; #:inputs `((,b) (,p1))))
;; (p2 (derivation->output-path d1)))
;; (and (add-temp-root %store p2)
;; (build-derivations %store (list d1))
;; (valid-path? %store p1)
;; (member (pk p2) (live-paths %store)))))
(test-assert "permanent root"
(let* ((p (with-store store
(let ((p (add-text-to-store store "random-text"
(random-text))))
(add-permanent-root p)
(add-permanent-root p) ; should not throw
p))))
(and (member p (live-paths %store))
(begin
(remove-permanent-root p)
(->bool (member p (dead-paths %store)))))))
(test-assert "dead path can be explicitly collected"
(let ((p (add-text-to-store %store "random-text"
(random-text) '())))
(let-values (((paths freed) (delete-paths %store (list p))))
(and (equal? paths (list p))
(> freed 0)
(not (file-exists? p))))))
(test-assert "add-text-to-store vs. delete-paths"
;; Before, 'add-text-to-store' would return PATH2 without noticing that it
;; is no longer valid.
(with-store store
(let* ((text (random-text))
(path (add-text-to-store store "delete-me" text))
(deleted (delete-paths store (list path)))
(path2 (add-text-to-store store "delete-me" text)))
(and (string=? path path2)
(equal? deleted (list path))
(valid-path? store path)
(file-exists? path)))))
(test-assert "add-to-store vs. delete-paths"
;; Same as above.
(with-store store
(let* ((file (search-path %load-path "guix.scm"))
(path (add-to-store store "delete-me" #t "sha256" file))
(deleted (delete-paths store (list path)))
(path2 (add-to-store store "delete-me" #t "sha256" file)))
(and (string=? path path2)
(equal? deleted (list path))
(valid-path? store path)
(file-exists? path)))))
(test-assert "references"
(let* ((t1 (add-text-to-store %store "random1"
(random-text)))
(t2 (add-text-to-store %store "random2"
(random-text) (list t1))))
(and (equal? (list t1) (references %store t2))
(equal? (list t2) (referrers %store t1))
(null? (references %store t1))
(null? (referrers %store t2)))))
(test-assert "requisites"
(let* ((t1 (add-text-to-store %store "random1"
(random-text) '()))
(t2 (add-text-to-store %store "random2"
(random-text) (list t1)))
(t3 (add-text-to-store %store "random3"
(random-text) (list t2)))
(t4 (add-text-to-store %store "random4"
(random-text) (list t1 t3))))
(define (same? x y)
(and (= (length x) (length y))
(lset= equal? x y)))
(and (same? (requisites %store t1) (list t1))
(same? (requisites %store t2) (list t1 t2))
(same? (requisites %store t3) (list t1 t2 t3))
(same? (requisites %store t4) (list t1 t2 t3 t4)))))
(test-assert "derivers"
(let* ((b (add-text-to-store %store "build" "echo $foo > $out" '()))
(s (add-to-store %store "bash" #t "sha256"
(search-bootstrap-binary "bash"
(%current-system))))
(d (derivation %store "the-thing"
s `("-e" ,b)
#:env-vars `(("foo" . ,(random-text)))
#:inputs `((,b) (,s))))
(o (derivation->output-path d)))
(and (build-derivations %store (list d))
(equal? (query-derivation-outputs %store (derivation-file-name d))
(list o))
(equal? (valid-derivers %store o)
(list (derivation-file-name d))))))
(test-assert "topologically-sorted, one item"
(let* ((a (add-text-to-store %store "a" "a"))
(b (add-text-to-store %store "b" "b" (list a)))
(c (add-text-to-store %store "c" "c" (list b)))
(d (add-text-to-store %store "d" "d" (list c)))
(s (topologically-sorted %store (list d))))
(equal? s (list a b c d))))
(test-assert "topologically-sorted, several items"
(let* ((a (add-text-to-store %store "a" "a"))
(b (add-text-to-store %store "b" "b" (list a)))
(c (add-text-to-store %store "c" "c" (list b)))
(d (add-text-to-store %store "d" "d" (list c)))
(s1 (topologically-sorted %store (list d a c b)))
(s2 (topologically-sorted %store (list b d c a b d))))
(equal? s1 s2 (list a b c d))))
(test-assert "topologically-sorted, more difficult"
(let* ((a (add-text-to-store %store "a" "a"))
(b (add-text-to-store %store "b" "b" (list a)))
(c (add-text-to-store %store "c" "c" (list b)))
(d (add-text-to-store %store "d" "d" (list c)))
(w (add-text-to-store %store "w" "w"))
(x (add-text-to-store %store "x" "x" (list w)))
(y (add-text-to-store %store "y" "y" (list x d)))
(s1 (topologically-sorted %store (list y)))
(s2 (topologically-sorted %store (list c y)))
(s3 (topologically-sorted %store (cons y (references %store y)))))
;; The order in which 'references' returns the references of Y is
;; unspecified, so accommodate.
(let* ((x-then-d? (equal? (references %store y) (list x d))))
(and (equal? s1
(if x-then-d?
(list w x a b c d y)
(list a b c d w x y)))
(equal? s2
(if x-then-d?
(list a b c w x d y)
(list a b c d w x y)))
(lset= string=? s1 s3)))))
(test-assert "current-build-output-port, UTF-8"
;; Are UTF-8 strings in the build log properly interpreted?
(string-contains
(with-fluids ((%default-port-encoding "UTF-8")) ;for the string port
(call-with-output-string
(lambda (port)
(parameterize ((current-build-output-port port))
(let* ((s "Here’s a Greek letter: λ.")
(d (build-expression->derivation
%store "foo" `(display ,s)
#:guile-for-build
(package-derivation s %bootstrap-guile (%current-system)))))
(guard (c ((nix-protocol-error? c) #t))
(build-derivations %store (list d))))))))
"Here’s a Greek letter: λ."))
(test-assert "current-build-output-port, UTF-8 + garbage"
;; What about a mixture of UTF-8 + garbage?
(string-contains
(with-fluids ((%default-port-encoding "UTF-8")) ;for the string port
(call-with-output-string
(lambda (port)
(parameterize ((current-build-output-port port))
(let ((d (build-expression->derivation
%store "foo"
`(begin
(use-modules (rnrs io ports))
(display "garbage: ")
(put-bytevector (current-output-port) #vu8(128))
(display "lambda: λ\n"))
#:guile-for-build
(package-derivation %store %bootstrap-guile))))
(guard (c ((nix-protocol-error? c) #t))
(build-derivations %store (list d))))))))
"garbage: ?lambda: λ"))
(test-assert "log-file, derivation"
(let* ((b (add-text-to-store %store "build" "echo $foo > $out" '()))
(s (add-to-store %store "bash" #t "sha256"
(search-bootstrap-binary "bash"
(%current-system))))
(d (derivation %store "the-thing"
s `("-e" ,b)
#:env-vars `(("foo" . ,(random-text)))
#:inputs `((,b) (,s)))))
(and (build-derivations %store (list d))
(file-exists? (pk (log-file %store (derivation-file-name d)))))))
(test-assert "log-file, output file name"
(let* ((b (add-text-to-store %store "build" "echo $foo > $out" '()))
(s (add-to-store %store "bash" #t "sha256"
(search-bootstrap-binary "bash"
(%current-system))))
(d (derivation %store "the-thing"
s `("-e" ,b)
#:env-vars `(("foo" . ,(random-text)))
#:inputs `((,b) (,s))))
(o (derivation->output-path d)))
(and (build-derivations %store (list d))
(file-exists? (pk (log-file %store o)))
(string=? (log-file %store (derivation-file-name d))
(log-file %store o)))))
(test-assert "no substitutes"
(with-store s
(let* ((d1 (package-derivation s %bootstrap-guile (%current-system)))
(d2 (package-derivation s %bootstrap-glibc (%current-system)))
(o (map derivation->output-path (list d1 d2))))
(set-build-options s #:use-substitutes? #f)
(and (not (has-substitutes? s (derivation-file-name d1)))
(not (has-substitutes? s (derivation-file-name d2)))
(null? (substitutable-paths s o))
(null? (substitutable-path-info s o))))))
(test-assert "build-things with output path"
(with-store s
(let* ((c (random-text)) ;contents of the output
(d (build-expression->derivation
s "substitute-me"
`(call-with-output-file %output
(lambda (p)
(display ,c p)))
#:guile-for-build
(package-derivation s %bootstrap-guile (%current-system))))
(o (derivation->output-path d)))
(set-build-options s #:use-substitutes? #f)
;; Pass 'build-things' the output file name, O. However, since there
;; are no substitutes for O, it will just do nothing.
(build-things s (list o))
(not (valid-path? s o)))))
(test-skip (if (getenv "GUIX_BINARY_SUBSTITUTE_URL") 0 1))
(test-assert "substitute query"
(with-store s
(let* ((d (package-derivation s %bootstrap-guile (%current-system)))
(o (derivation->output-path d)))
;; Create fake substituter data, to be read by 'guix substitute'.
(with-derivation-narinfo d
;; Remove entry from the local cache.
(false-if-exception
(delete-file (string-append (getenv "XDG_CACHE_HOME")
"/guix/substitute/"
(store-path-hash-part o))))
;; Make sure 'guix substitute' correctly communicates the above
;; data.
(set-build-options s #:use-substitutes? #t)
(and (has-substitutes? s o)
(equal? (list o) (substitutable-paths s (list o)))
(match (pk 'spi (substitutable-path-info s (list o)))
(((? substitutable? s))
(and (string=? (substitutable-deriver s)
(derivation-file-name d))
(null? (substitutable-references s))
(equal? (substitutable-nar-size s) 1234)))))))))
(test-assert "substitute"
(with-store s
(let* ((c (random-text)) ; contents of the output
(d (build-expression->derivation
s "substitute-me"
`(call-with-output-file %output
(lambda (p)
(exit 1) ; would actually fail
(display ,c p)))
#:guile-for-build
(package-derivation s %bootstrap-guile (%current-system))))
(o (derivation->output-path d)))
(with-derivation-substitute d c
(set-build-options s #:use-substitutes? #t)
(and (has-substitutes? s o)
(build-derivations s (list d))
(equal? c (call-with-input-file o get-string-all)))))))
(test-assert "substitute + build-things with output path"
(with-store s
(let* ((c (random-text)) ;contents of the output
(d (build-expression->derivation
s "substitute-me"
`(call-with-output-file %output
(lambda (p)
(exit 1) ;would actually fail
(display ,c p)))
#:guile-for-build
(package-derivation s %bootstrap-guile (%current-system))))
(o (derivation->output-path d)))
(with-derivation-substitute d c
(set-build-options s #:use-substitutes? #t)
(and (has-substitutes? s o)
(build-things s (list o)) ;give the output path
(valid-path? s o)
(equal? c (call-with-input-file o get-string-all)))))))
(test-assert "substitute, corrupt output hash"
;; Tweak the substituter into installing a substitute whose hash doesn't
;; match the one announced in the narinfo. The daemon must notice this and
;; raise an error.
(with-store s
(let* ((c "hello, world") ; contents of the output
(d (build-expression->derivation
s "corrupt-substitute"
`(mkdir %output)
#:guile-for-build
(package-derivation s %bootstrap-guile (%current-system))))
(o (derivation->output-path d)))
(with-derivation-substitute d c
(sha256 => (make-bytevector 32 0)) ;select a hash that doesn't match C
;; Make sure we use 'guix substitute'.
(set-build-options s
#:use-substitutes? #t
#:fallback? #f)
(and (has-substitutes? s o)
(guard (c ((nix-protocol-error? c)
;; XXX: the daemon writes "hash mismatch in downloaded
;; path", but the actual error returned to the client
;; doesn't mention that.
(pk 'corrupt c)
(not (zero? (nix-protocol-error-status c)))))
(build-derivations s (list d))
#f))))))
(test-assert "substitute --fallback"
(with-store s
(let* ((t (random-text)) ; contents of the output
(d (build-expression->derivation
s "substitute-me-not"
`(call-with-output-file %output
(lambda (p)
(display ,t p)))
#:guile-for-build
(package-derivation s %bootstrap-guile (%current-system))))
(o (derivation->output-path d)))
;; Create fake substituter data, to be read by 'guix substitute'.
(with-derivation-narinfo d
;; Make sure we use 'guix substitute'.
(set-build-options s #:use-substitutes? #t)
(and (has-substitutes? s o)
(guard (c ((nix-protocol-error? c)
;; The substituter failed as expected. Now make
;; sure that #:fallback? #t works correctly.
(set-build-options s
#:use-substitutes? #t
#:fallback? #t)
(and (build-derivations s (list d))
(equal? t (call-with-input-file o
get-string-all)))))
;; Should fail.
(build-derivations s (list d))
#f))))))
(test-assert "export/import several paths"
(let* ((texts (unfold (cut >= <> 10)
(lambda _ (random-text))
1+
0))
(files (map (cut add-text-to-store %store "text" <>) texts))
(dump (call-with-bytevector-output-port
(cut export-paths %store files <>))))
(delete-paths %store files)
(and (every (negate file-exists?) files)
(let* ((source (open-bytevector-input-port dump))
(imported (import-paths %store source)))
(and (equal? imported files)
(every file-exists? files)
(equal? texts
(map (lambda (file)
(call-with-input-file file
get-string-all))
files)))))))
(test-assert "export/import paths, ensure topological order"
(let* ((file0 (add-text-to-store %store "baz" (random-text)))
(file1 (add-text-to-store %store "foo" (random-text)
(list file0)))
(file2 (add-text-to-store %store "bar" (random-text)
(list file1)))
(files (list file1 file2))
(dump1 (call-with-bytevector-output-port
(cute export-paths %store (list file1 file2) <>)))
(dump2 (call-with-bytevector-output-port
(cute export-paths %store (list file2 file1) <>))))
(delete-paths %store files)
(and (every (negate file-exists?) files)
(bytevector=? dump1 dump2)
(let* ((source (open-bytevector-input-port dump1))
(imported (import-paths %store source)))
;; DUMP1 should contain exactly FILE1 and FILE2, not FILE0.
(and (equal? imported (list file1 file2))
(every file-exists? files)
(equal? (list file0) (references %store file1))
(equal? (list file1) (references %store file2)))))))
(test-assert "export/import incomplete"
(let* ((file0 (add-text-to-store %store "baz" (random-text)))
(file1 (add-text-to-store %store "foo" (random-text)
(list file0)))
(file2 (add-text-to-store %store "bar" (random-text)
(list file1)))
(dump (call-with-bytevector-output-port
(cute export-paths %store (list file2) <>))))
(delete-paths %store (list file0 file1 file2))
(guard (c ((nix-protocol-error? c)
(and (not (zero? (nix-protocol-error-status c)))
(string-contains (nix-protocol-error-message c)
"not valid"))))
;; Here we get an exception because DUMP does not include FILE0 and
;; FILE1, which are dependencies of FILE2.
(import-paths %store (open-bytevector-input-port dump)))))
(test-assert "export/import recursive"
(let* ((file0 (add-text-to-store %store "baz" (random-text)))
(file1 (add-text-to-store %store "foo" (random-text)
(list file0)))
(file2 (add-text-to-store %store "bar" (random-text)
(list file1)))
(dump (call-with-bytevector-output-port
(cute export-paths %store (list file2) <>
#:recursive? #t))))
(delete-paths %store (list file0 file1 file2))
(let ((imported (import-paths %store (open-bytevector-input-port dump))))
(and (equal? imported (list file0 file1 file2))
(every file-exists? (list file0 file1 file2))
(equal? (list file0) (references %store file1))
(equal? (list file1) (references %store file2))))))
(test-assert "import corrupt path"
(let* ((text (random-text))
(file (add-text-to-store %store "text" text))
(dump (call-with-bytevector-output-port
(cut export-paths %store (list file) <>))))
(delete-paths %store (list file))
;; Flip a bit in the stream's payload.
(let* ((index (quotient (bytevector-length dump) 4))
(byte (bytevector-u8-ref dump index)))
(bytevector-u8-set! dump index (logxor #xff byte)))
(and (not (file-exists? file))
(guard (c ((nix-protocol-error? c)
(pk 'c c)
(and (not (zero? (nix-protocol-error-status c)))
(string-contains (nix-protocol-error-message c)
"corrupt"))))
(let* ((source (open-bytevector-input-port dump))
(imported (import-paths %store source)))
(pk 'corrupt-imported imported)
#f)))))
(test-assert "register-path"
(let ((file (string-append (%store-prefix) "/" (make-string 32 #\f)
"-fake")))
(when (valid-path? %store file)
(delete-paths %store (list file)))
(false-if-exception (delete-file file))
(let ((ref (add-text-to-store %store "ref-of-fake" (random-text)))
(drv (string-append file ".drv")))
(call-with-output-file file
(cut display "This is a fake store item.\n" <>))
(register-path file
#:references (list ref)
#:deriver drv)
(and (valid-path? %store file)
(equal? (references %store file) (list ref))
(null? (valid-derivers %store file))
(null? (referrers %store file))))))
(test-assert "verify-store"
(let* ((text (random-text))
(file1 (add-text-to-store %store "foo" text))
(file2 (add-text-to-store %store "bar" (random-text)
(list file1))))
(and (pk 'verify1 (verify-store %store)) ;hopefully OK ;
(begin
(delete-file file1)
(not (pk 'verify2 (verify-store %store)))) ;bad! ;
(begin
;; Using 'add-text-to-store' here wouldn't work: It would succeed ;
;; without actually creating the file. ;
(call-with-output-file file1
(lambda (port)
(display text port)))
(pk 'verify3 (verify-store %store)))))) ;OK again
(test-assert "verify-store + check-contents"
;; XXX: This test is I/O intensive.
(with-store s
(let* ((text (random-text))
(drv (build-expression->derivation
s "corrupt"
`(let ((out (assoc-ref %outputs "out")))
(call-with-output-file out
(lambda (port)
(display ,text port)))
#t)
#:guile-for-build
(package-derivation s %bootstrap-guile (%current-system))))
(file (derivation->output-path drv)))
(with-derivation-substitute drv text
(and (build-derivations s (list drv))
(verify-store s #:check-contents? #t) ;should be OK
(begin
(chmod file #o644)
(call-with-output-file file
(lambda (port)
(display "corrupt!" port)))
#t)
;; Make sure the corruption is detected. We don't test repairing
;; because only "trusted" users are allowed to do it, but we
;; don't expose that notion of trusted users that nix-daemon
;; supports because it seems dubious and redundant with what the
;; OS provides (in Nix "trusted" users have additional
;; privileges, such as overriding the set of substitute URLs, but
;; we instead want to allow anyone to modify them, provided
;; substitutes are signed by a root-approved key.)
(not (verify-store s #:check-contents? #t))
;; Delete the corrupt item to leave the store in a clean state.
(delete-paths s (list file)))))))
(test-equal "store-lower"
"Lowered."
(let* ((add (store-lower text-file))
(file (add %store "foo" "Lowered.")))
(call-with-input-file file get-string-all)))
(test-assert "query-path-info"
(let* ((ref (add-text-to-store %store "ref" "foo"))
(item (add-text-to-store %store "item" "bar" (list ref)))
(info (query-path-info %store item)))
(and (equal? (path-info-references info) (list ref))
(equal? (path-info-hash info)
(sha256
(string->utf8
(call-with-output-string (cut write-file item <>))))))))
(test-end "store")
(exit (= (test-runner-fail-count (test-runner-current)) 0))
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