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https://git.in.rschanz.org/ryan77627/guix.git
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681af17460
This separation between the code for dealing with narinfos from the code doing that for a purpose should make things clearer, and better support components other that the substitute script in using this code. This is just moving the code around, no code should have been significantly changed. * guix/scripts/substitute.scm (<narinfo>): Move record type to (guix narinfo). (fields->alist, narinfo-hash-algorithm+value, narinfo-hash->sha256, narinfo-signature->canonical-sexp, narinfo-maker, read-narinfo, narinfo-sha256, valid-narinfo?, write-narinfo, narinfo->string, string->narinfo, equivalent-narinfo?, supported-compression?, compresses-better?, narinfo-best-uri): Move procedures to (guix narinfo). (%compression-methods): Move variable to (guix narinfo). * guix/narinfo.scm: New file. * Makefile.am (MODULES): Add it. * po/guix/POTFILES.in: Add 'guix/narinfo.scm'.
241 lines
10 KiB
Scheme
241 lines
10 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2015, 2017, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (test-challenge)
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#:use-module (guix tests)
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#:use-module (guix tests http)
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#:use-module ((gcrypt hash) #:prefix gcrypt:)
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#:use-module (guix store)
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#:use-module (guix monads)
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#:use-module (guix derivations)
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#:use-module (guix serialization)
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#:use-module (guix packages)
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#:use-module (guix gexp)
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#:use-module (guix base32)
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#:use-module (guix narinfo)
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#:use-module (guix scripts challenge)
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#:use-module ((guix build utils) #:select (find-files))
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#:use-module (gnu packages bootstrap)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:use-module (srfi srfi-64)
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#:use-module (rnrs bytevectors)
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#:use-module (rnrs io ports)
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#:use-module (ice-9 match))
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(define query-path-hash*
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(store-lift query-path-hash))
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(define (query-path-size item)
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(mlet %store-monad ((info (query-path-info* item)))
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(return (path-info-nar-size info))))
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(define* (call-with-derivation-narinfo* drv thunk hash)
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(lambda (store)
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(with-derivation-narinfo drv (sha256 => hash)
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(values (run-with-store store (thunk)) store))))
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(define-syntax with-derivation-narinfo*
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(syntax-rules (sha256 =>)
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((_ drv (sha256 => hash) body ...)
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(call-with-derivation-narinfo* drv
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(lambda () body ...)
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hash))))
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(test-begin "challenge")
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(test-assertm "no discrepancies"
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(let ((text (random-text)))
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(mlet* %store-monad ((drv (gexp->derivation "something"
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#~(call-with-output-file
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#$output
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(lambda (port)
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(display #$text port)))))
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(out -> (derivation->output-path drv)))
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(mbegin %store-monad
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(built-derivations (list drv))
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(mlet %store-monad ((hash (query-path-hash* out)))
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(with-derivation-narinfo* drv (sha256 => hash)
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(>>= (compare-contents (list out) (%test-substitute-urls))
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(match-lambda
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((report)
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(return
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(and (string=? out (comparison-report-item report))
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(bytevector=?
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(comparison-report-local-sha256 report)
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hash)
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(comparison-report-match? report))))))))))))
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(test-assertm "one discrepancy"
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(let ((text (random-text)))
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(mlet* %store-monad ((drv (gexp->derivation "something"
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#~(call-with-output-file
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#$output
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(lambda (port)
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(display #$text port)))))
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(out -> (derivation->output-path drv)))
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(mbegin %store-monad
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(built-derivations (list drv))
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(mlet* %store-monad ((hash (query-path-hash* out))
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(wrong-hash
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-> (let* ((w (bytevector-copy hash))
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(b (bytevector-u8-ref w 0)))
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(bytevector-u8-set! w 0
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(modulo (+ b 1) 128))
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w)))
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(with-derivation-narinfo* drv (sha256 => wrong-hash)
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(>>= (compare-contents (list out) (%test-substitute-urls))
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(match-lambda
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((report)
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(return
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(and (string=? out (comparison-report-item (pk report)))
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(eq? 'mismatch (comparison-report-result report))
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(bytevector=? hash
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(comparison-report-local-sha256
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report))
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(match (comparison-report-narinfos report)
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((bad)
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(bytevector=? wrong-hash
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(narinfo-hash->sha256
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(narinfo-hash bad))))))))))))))))
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(test-assertm "inconclusive: no substitutes"
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(mlet* %store-monad ((drv (gexp->derivation "foo" #~(mkdir #$output)))
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(out -> (derivation->output-path drv))
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(_ (built-derivations (list drv)))
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(hash (query-path-hash* out)))
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(>>= (compare-contents (list out) (%test-substitute-urls))
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(match-lambda
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((report)
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(return
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(and (string=? out (comparison-report-item report))
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(comparison-report-inconclusive? report)
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(null? (comparison-report-narinfos report))
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(bytevector=? (comparison-report-local-sha256 report)
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hash))))))))
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(test-assertm "inconclusive: no local build"
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(let ((text (random-text)))
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(mlet* %store-monad ((drv (gexp->derivation "something"
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#~(list #$output #$text)))
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(out -> (derivation->output-path drv))
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(hash -> (gcrypt:sha256 #vu8())))
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(with-derivation-narinfo* drv (sha256 => hash)
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(>>= (compare-contents (list out) (%test-substitute-urls))
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(match-lambda
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((report)
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(return
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(and (string=? out (comparison-report-item report))
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(comparison-report-inconclusive? report)
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(not (comparison-report-local-sha256 report))
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(match (comparison-report-narinfos report)
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((narinfo)
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(bytevector=? (narinfo-hash->sha256
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(narinfo-hash narinfo))
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hash))))))))))))
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(define (make-narinfo item size hash)
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(format #f "StorePath: ~a
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Compression: none
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URL: nar/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo
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NarSize: ~d
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NarHash: sha256:~a
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References: ~%" item size (bytevector->nix-base32-string hash)))
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(define (call-mismatch-test proc)
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"Pass PROC a <comparison-report> for a mismatch and return its return
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value."
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;; Pretend we have two different results for the same store item, ITEM, with
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;; "/bin/guile" differing between the two nars.
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(mlet* %store-monad
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((drv1 (package->derivation %bootstrap-guile))
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(drv2 (gexp->derivation
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"broken-guile"
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(with-imported-modules '((guix build utils))
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#~(begin
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(use-modules (guix build utils))
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(copy-recursively #$drv1 #$output)
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(chmod (string-append #$output "/bin/guile")
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#o755)
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(call-with-output-file (string-append
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#$output
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"/bin/guile")
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(lambda (port)
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(display "corrupt!" port)))))))
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(out1 -> (derivation->output-path drv1))
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(out2 -> (derivation->output-path drv2))
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(item -> (string-append (%store-prefix) "/"
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(bytevector->nix-base32-string
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(random-bytevector 32))
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"-foo"
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(number->string (current-time) 16))))
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(mbegin %store-monad
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(built-derivations (list drv1 drv2))
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(mlet* %store-monad ((size1 (query-path-size out1))
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(size2 (query-path-size out2))
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(hash1 (query-path-hash* out1))
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(hash2 (query-path-hash* out2))
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(nar1 -> (call-with-bytevector-output-port
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(lambda (port)
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(write-file out1 port))))
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(nar2 -> (call-with-bytevector-output-port
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(lambda (port)
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(write-file out2 port)))))
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(parameterize ((%http-server-port 9000))
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(with-http-server `((200 ,(make-narinfo item size1 hash1))
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(200 ,nar1))
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(parameterize ((%http-server-port 9001))
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(with-http-server `((200 ,(make-narinfo item size2 hash2))
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(200 ,nar2))
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(mlet* %store-monad ((urls -> (list (%local-url 9000)
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(%local-url 9001)))
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(reports (compare-contents (list item)
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urls)))
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(pk 'report reports)
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(return (proc (car reports))))))))))))
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(test-assertm "differing-files"
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(call-mismatch-test
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(lambda (report)
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(equal? (differing-files report) '("/bin/guile")))))
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(test-assertm "call-with-mismatches"
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(call-mismatch-test
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(lambda (report)
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(call-with-mismatches
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report
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(lambda (directory1 directory2)
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(let* ((files1 (find-files directory1))
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(files2 (find-files directory2))
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(files (map (cute string-drop <> (string-length directory1))
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files1)))
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(and (equal? files
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(map (cute string-drop <> (string-length directory2))
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files2))
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(equal? (remove (lambda (file)
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(file=? (string-append directory1 "/" file)
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(string-append directory2 "/" file)))
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files)
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'("/bin/guile")))))))))
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(test-end)
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;;; Local Variables:
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;;; eval: (put 'with-derivation-narinfo* 'scheme-indent-function 2)
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;;; End:
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