diff options
| -rw-r--r-- | doc/guix.texi | 24 | ||||
| -rw-r--r-- | guix/scripts/challenge.scm | 156 | ||||
| -rw-r--r-- | guix/tests/http.scm | 6 | ||||
| -rw-r--r-- | tests/challenge.scm | 67 |
4 files changed, 242 insertions, 11 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index cb51878004..80d67a44fa 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -10321,14 +10321,23 @@ updating list of substitutes from 'https://guix.example.org'... 100.0% local hash: 0725l22r5jnzazaacncwsvp9kgf42266ayyp814v7djxs7nk963q https://@value{SUBSTITUTE-SERVER}/nar/@dots{}-openssl-1.0.2d: 0725l22r5jnzazaacncwsvp9kgf42266ayyp814v7djxs7nk963q https://guix.example.org/nar/@dots{}-openssl-1.0.2d: 1zy4fmaaqcnjrzzajkdn3f5gmjk754b43qkq47llbyak9z0qjyim + differing files: + /lib/libcrypto.so.1.1 + /lib/libssl.so.1.1 + /gnu/store/@dots{}-git-2.5.0 contents differ: local hash: 00p3bmryhjxrhpn2gxs2fy0a15lnip05l97205pgbk5ra395hyha https://@value{SUBSTITUTE-SERVER}/nar/@dots{}-git-2.5.0: 069nb85bv4d4a6slrwjdy8v1cn4cwspm3kdbmyb81d6zckj3nq9f https://guix.example.org/nar/@dots{}-git-2.5.0: 0mdqa9w1p6cmli6976v4wi0sw9r4p5prkj7lzfd1877wk11c9c73 + differing file: + /libexec/git-core/git-fsck + /gnu/store/@dots{}-pius-2.1.1 contents differ: local hash: 0k4v3m9z1zp8xzzizb7d8kjj72f9172xv078sq4wl73vnq9ig3ax https://@value{SUBSTITUTE-SERVER}/nar/@dots{}-pius-2.1.1: 0k4v3m9z1zp8xzzizb7d8kjj72f9172xv078sq4wl73vnq9ig3ax https://guix.example.org/nar/@dots{}-pius-2.1.1: 1cy25x1a4fzq5rk0pmvc8xhwyffnqz95h2bpvqsz2mpvlbccy0gs + differing file: + /share/man/man1/pius.1.gz @dots{} @@ -10414,6 +10423,21 @@ The one option that matters is: Consider @var{urls} the whitespace-separated list of substitute source URLs to compare to. +@item --diff=@var{mode} +Upon mismatches, show differences according to @var{mode}, one of: + +@table @asis +@item @code{simple} (the default) +Show the list of files that differ. + +@item @code{none} +Do not show further details about the differences. +@end table + +Thus, unless @code{--diff=none} is passed, @command{guix challenge} +downloads the store items from the given substitute servers so that it +can compare them. + @item --verbose @itemx -v Show details about matches (identical contents) in addition to diff --git a/guix/scripts/challenge.scm b/guix/scripts/challenge.scm index aabb2ee549..277eec9a5d 100644 --- a/guix/scripts/challenge.scm +++ b/guix/scripts/challenge.scm @@ -25,17 +25,23 @@ #:use-module (guix monads) #:use-module (guix base32) #:use-module (guix packages) + #:use-module (guix progress) #:use-module (guix serialization) #:use-module (guix scripts substitute) #:use-module (rnrs bytevectors) + #:autoload (guix http-client) (http-fetch) + #:use-module ((guix build syscalls) #:select (terminal-columns)) + #:use-module (gcrypt hash) #:use-module (srfi srfi-1) #:use-module (srfi srfi-9) + #:use-module (srfi srfi-11) #:use-module (srfi srfi-26) #:use-module (srfi srfi-34) #:use-module (srfi srfi-37) #:use-module (ice-9 match) #:use-module (ice-9 vlist) #:use-module (ice-9 format) + #:use-module (ice-9 ftw) #:use-module (web uri) #:export (compare-contents @@ -49,6 +55,8 @@ comparison-report-mismatch? comparison-report-inconclusive? + differing-files + guix-challenge)) ;;; Commentary: @@ -179,13 +187,128 @@ taken since we do not import the archives." items local)))) + +;;; +;;; Reporting. +;;; + +(define dump-port* ;FIXME: deduplicate + (@@ (guix serialization) dump)) + +(define (port-sha256* port size) + ;; Like 'port-sha256', but limited to SIZE bytes. + (let-values (((out get) (open-sha256-port))) + (dump-port* port out size) + (close-port out) + (get))) + +(define (archive-contents port) + "Return a list representing the files contained in the nar read from PORT." + (fold-archive (lambda (file type contents result) + (match type + ((or 'regular 'executable) + (match contents + ((port . size) + (cons `(,file ,type ,(port-sha256* port size)) + result)))) + ('directory result) + ('symlink + (cons `(,file ,type ,contents) result)))) + '() + port + "")) + +(define (store-item-contents item) + "Return a list of files and contents for ITEM in the same format as +'archive-contents'." + (file-system-fold (const #t) ;enter? + (lambda (file stat result) ;leaf + (define short + (string-drop file (string-length item))) + + (match (stat:type stat) + ('regular + (let ((size (stat:size stat)) + (type (if (zero? (logand (stat:mode stat) + #o100)) + 'regular + 'executable))) + (cons `(,short ,type + ,(call-with-input-file file + (cut port-sha256* <> size))) + result))) + ('symlink + (cons `(,short symlink ,(readlink file)) + result)))) + (lambda (directory stat result) result) ;down + (lambda (directory stat result) result) ;up + (lambda (file stat result) result) ;skip + (lambda (file stat errno result) result) ;error + '() + item + lstat)) + +(define (narinfo-contents narinfo) + "Fetch the nar described by NARINFO and return a list representing the file +it contains." + (let*-values (((uri compression size) + (narinfo-best-uri narinfo)) + ((port response) + (http-fetch uri))) + (define reporter + (progress-reporter/file (narinfo-path narinfo) size + #:abbreviation (const (uri-host uri)))) + + (define result + (call-with-decompressed-port (string->symbol compression) + (progress-report-port reporter port) + archive-contents)) + + (close-port port) + (erase-current-line (current-output-port)) + result)) + +(define (differing-files comparison-report) + "Return a list of files that differ among the nars and possibly the local +store item specified in COMPARISON-REPORT." + (define contents + (map narinfo-contents + (comparison-report-narinfos comparison-report))) + + (define local-contents + (and (comparison-report-local-sha256 comparison-report) + (store-item-contents (comparison-report-item comparison-report)))) + + (match (apply lset-difference equal? + (take (delete-duplicates + (if local-contents + (cons local-contents contents) + contents)) + 2)) + (((files _ ...) ...) + files))) + +(define (report-differing-files comparison-report) + "Report differences among the nars and possibly the local store item +specified in COMPARISON-REPORT." + (match (differing-files comparison-report) + (() + #t) + ((files ...) + (format #t (N_ " differing file:~%" + " differing files:~%" + (length files))) + (format #t "~{ ~a~%~}" files)))) + (define* (summarize-report comparison-report #:key + (report-differences (const #f)) (hash->string bytevector->nix-base32-string) verbose?) - "Write to the current error port a summary of REPORT, a <comparison-report> -object. When VERBOSE?, display matches in addition to mismatches and -inconclusive reports." + "Write to the current error port a summary of COMPARISON-REPORT, a +<comparison-report> object. When VERBOSE?, display matches in addition to +mismatches and inconclusive reports. Upon mismatch, call REPORT-DIFFERENCES +with COMPARISON-REPORT." (define (report-hashes item local narinfos) (if local (report (G_ " local hash: ~a~%") (hash->string local)) @@ -200,7 +323,8 @@ inconclusive reports." (match comparison-report (($ <comparison-report> item 'mismatch local (narinfos ...)) (report (G_ "~a contents differ:~%") item) - (report-hashes item local narinfos)) + (report-hashes item local narinfos) + (report-differences comparison-report)) (($ <comparison-report> item 'inconclusive #f narinfos) (warning (G_ "could not challenge '~a': no local build~%") item)) (($ <comparison-report> item 'inconclusive locals ()) @@ -237,6 +361,8 @@ Challenge the substitutes for PACKAGE... provided by one or more servers.\n")) compare build results with those at URLS")) (display (G_ " -v, --verbose show details about successful comparisons")) + (display (G_ " + --diff=MODE show differences according to MODE")) (newline) (display (G_ " -h, --help display this help and exit")) @@ -254,6 +380,18 @@ Challenge the substitutes for PACKAGE... provided by one or more servers.\n")) (lambda args (show-version-and-exit "guix challenge"))) + (option '("diff") #t #f + (lambda (opt name arg result . rest) + (define mode + (match arg + ("none" (const #t)) + ("simple" report-differing-files) + (_ (leave (G_ "~a: unknown diff mode~%") arg)))) + + (apply values + (alist-cons 'difference-report mode result) + rest))) + (option '("substitute-urls") #t #f (lambda (opt name arg result . rest) (apply values @@ -269,7 +407,8 @@ Challenge the substitutes for PACKAGE... provided by one or more servers.\n")) (define %default-options `((system . ,(%current-system)) - (substitute-urls . ,%default-substitute-urls))) + (substitute-urls . ,%default-substitute-urls) + (difference-report . ,report-differing-files))) ;;; @@ -286,12 +425,14 @@ Challenge the substitutes for PACKAGE... provided by one or more servers.\n")) opts)) (system (assoc-ref opts 'system)) (urls (assoc-ref opts 'substitute-urls)) + (diff (assoc-ref opts 'difference-report)) (verbose? (assoc-ref opts 'verbose?))) (leave-on-EPIPE (with-store store ;; Disable grafts since substitute servers normally provide only ;; ungrafted stuff. - (parameterize ((%graft? #f)) + (parameterize ((%graft? #f) + (current-terminal-columns (terminal-columns))) (let ((files (match files (() (filter (cut locally-built? store <>) @@ -305,7 +446,8 @@ Challenge the substitutes for PACKAGE... provided by one or more servers.\n")) (mlet* %store-monad ((items (mapm %store-monad ensure-store-item files)) (reports (compare-contents items urls))) - (for-each (cut summarize-report <> #:verbose? verbose?) + (for-each (cut summarize-report <> #:verbose? verbose? + #:report-differences diff) reports) (report "\n") (summarize-report-list reports) diff --git a/guix/tests/http.scm b/guix/tests/http.scm index 05ce39bca2..4119e9ce01 100644 --- a/guix/tests/http.scm +++ b/guix/tests/http.scm @@ -65,14 +65,14 @@ needed." (close-port socket) #t))) -(define (%local-url) +(define* (%local-url #:optional (port (%http-server-port))) ;; URL to use for 'home-page' tests. - (string-append "http://localhost:" (number->string (%http-server-port)) + (string-append "http://localhost:" (number->string port) "/foo/bar")) (define* (call-with-http-server responses+data thunk) "Call THUNK with an HTTP server running and returning RESPONSES+DATA on HTTP -requests. Each elements of RESPONSES+DATA must be a tuple containing a +requests. Each element of RESPONSES+DATA must be a tuple containing a response and a string, or an HTTP response code and a string." (define responses (map (match-lambda diff --git a/tests/challenge.scm b/tests/challenge.scm index c962800f3f..a2782abcbd 100644 --- a/tests/challenge.scm +++ b/tests/challenge.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2015, 2017 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2015, 2017, 2019 Ludovic Courtès <ludo@gnu.org> ;;; ;;; This file is part of GNU Guix. ;;; @@ -18,22 +18,32 @@ (define-module (test-challenge) #:use-module (guix tests) + #:use-module (guix tests http) #:use-module (gcrypt hash) #:use-module (guix store) #:use-module (guix monads) #:use-module (guix derivations) + #:use-module (guix serialization) + #:use-module (guix packages) #:use-module (guix gexp) + #:use-module (guix base32) #:use-module (guix scripts challenge) #:use-module (guix scripts substitute) + #:use-module (gnu packages bootstrap) #:use-module (srfi srfi-1) #:use-module (srfi srfi-26) #:use-module (srfi srfi-64) #:use-module (rnrs bytevectors) + #:use-module (rnrs io ports) #:use-module (ice-9 match)) (define query-path-hash* (store-lift query-path-hash)) +(define (query-path-size item) + (mlet %store-monad ((info (query-path-info* item))) + (return (path-info-nar-size info)))) + (define* (call-with-derivation-narinfo* drv thunk hash) (lambda (store) (with-derivation-narinfo drv (sha256 => hash) @@ -138,7 +148,62 @@ (bytevector=? (narinfo-hash->sha256 (narinfo-hash narinfo)) hash)))))))))))) +(define (make-narinfo item size hash) + (format #f "StorePath: ~a +Compression: none +URL: nar/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo +NarSize: ~d +NarHash: sha256:~a +References: ~%" item size (bytevector->nix-base32-string hash))) +(test-assertm "differing-files" + ;; Pretend we have two different results for the same store item, ITEM, + ;; with "/bin/guile" differing between the two nars, and make sure + ;; 'differing-files' returns it. + (mlet* %store-monad + ((drv1 (package->derivation %bootstrap-guile)) + (drv2 (gexp->derivation + "broken-guile" + (with-imported-modules '((guix build utils)) + #~(begin + (use-modules (guix build utils)) + (copy-recursively #$drv1 #$output) + (chmod (string-append #$output "/bin/guile") + #o755) + (call-with-output-file (string-append + #$output + "/bin/guile") + (lambda (port) + (display "corrupt!" port))))))) + (out1 -> (derivation->output-path drv1)) + (out2 -> (derivation->output-path drv2)) + (item -> (string-append (%store-prefix) "/" + (make-string 32 #\a) "-foo"))) + (mbegin %store-monad + (built-derivations (list drv1 drv2)) + (mlet* %store-monad ((size1 (query-path-size out1)) + (size2 (query-path-size out2)) + (hash1 (query-path-hash* out1)) + (hash2 (query-path-hash* out2)) + (nar1 -> (call-with-bytevector-output-port + (lambda (port) + (write-file out1 port)))) + (nar2 -> (call-with-bytevector-output-port + (lambda (port) + (write-file out2 port))))) + (parameterize ((%http-server-port 9000)) + (with-http-server `((200 ,(make-narinfo item size1 hash1)) + (200 ,nar1)) + (parameterize ((%http-server-port 9001)) + (with-http-server `((200 ,(make-narinfo item size2 hash2)) + (200 ,nar2)) + (mlet* %store-monad ((urls -> (list (%local-url 9000) + (%local-url 9001))) + (reports (compare-contents (list item) + urls))) + (pk 'report reports) + (return (equal? (differing-files (car reports)) + '("/bin/guile")))))))))))) (test-end) |