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b96a0640a3
* guix/scripts/graph.scm (%reverse-package-node-type): New variable.
(%node-types): Add it.
* tests/graph.scm ("reverse package DAG"): New test.
* doc/guix.texi (Invoking guix refresh): Add cross-reference to
"Invoking guix graph".
(Invoking guix graph): Document 'reverse-package'.
326 lines
14 KiB
Scheme
326 lines
14 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2015, 2016, 2017 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-graph)
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#:use-module (guix tests)
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#:use-module (guix graph)
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#:use-module (guix scripts graph)
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#:use-module (guix packages)
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#:use-module (guix derivations)
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#:use-module (guix store)
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#:use-module (guix monads)
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#:use-module (guix grafts)
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#:use-module (guix build-system gnu)
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#:use-module (guix build-system trivial)
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#:use-module (guix gexp)
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#:use-module (guix utils)
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#:use-module (gnu packages)
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#:use-module (gnu packages base)
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#:use-module (gnu packages guile)
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#:use-module (gnu packages libunistring)
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#:use-module (gnu packages bootstrap)
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#:use-module (ice-9 match)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-11)
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#:use-module (srfi srfi-26)
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#:use-module (srfi srfi-64))
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(define %store
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(open-connection-for-tests))
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;; Globally disable grafts because they can trigger early builds.
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(%graft? #f)
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(define (make-recording-backend)
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"Return a <graph-backend> and a thunk that returns the recorded nodes and
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edges."
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(let ((nodes '())
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(edges '()))
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(define (record-node id label port)
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(set! nodes (cons (list id label) nodes)))
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(define (record-edge source target port)
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(set! edges (cons (list source target) edges)))
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(define (return)
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(values (reverse nodes) (reverse edges)))
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(values (graph-backend "test" "This is the test backend."
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(const #t) (const #t)
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record-node record-edge)
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return)))
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(define (package->tuple package)
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"Return a tuple representing PACKAGE as produced by %PACKAGE-NODE-TYPE."
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(list (object-address package)
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(package-full-name package)))
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(define (edge->tuple source target)
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"Likewise for an edge from SOURCE to TARGET."
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(list (object-address source)
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(object-address target)))
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(test-begin "graph")
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(test-assert "package DAG"
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(let-values (((backend nodes+edges) (make-recording-backend)))
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(let* ((p1 (dummy-package "p1"))
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(p2 (dummy-package "p2" (inputs `(("p1" ,p1)))))
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(p3 (dummy-package "p3" (inputs `(("p2" ,p2) ("p1", p1))))))
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(run-with-store %store
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(export-graph (list p3) 'port
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#:node-type %package-node-type
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#:backend backend))
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;; We should see nothing more than these 3 packages.
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(let-values (((nodes edges) (nodes+edges)))
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(and (equal? nodes (map package->tuple (list p3 p2 p1)))
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(equal? edges
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(map edge->tuple
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(list p3 p3 p2)
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(list p2 p1 p1))))))))
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(test-assert "reverse package DAG"
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(let-values (((backend nodes+edges) (make-recording-backend)))
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(run-with-store %store
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(export-graph (list libunistring) 'port
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#:node-type %reverse-package-node-type
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#:backend backend))
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;; We should see nothing more than these 3 packages.
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(let-values (((nodes edges) (nodes+edges)))
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(and (member (package->tuple guile-2.0) nodes)
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(->bool (member (edge->tuple libunistring guile-2.0) edges))))))
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(test-assert "bag-emerged DAG"
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(let-values (((backend nodes+edges) (make-recording-backend)))
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(let* ((o (dummy-origin (method (lambda _
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(text-file "foo" "bar")))))
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(p (dummy-package "p" (source o)))
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(implicit (map (match-lambda
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((label package) package))
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(standard-packages))))
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(run-with-store %store
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(export-graph (list p) 'port
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#:node-type %bag-emerged-node-type
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#:backend backend))
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;; We should see exactly P and IMPLICIT, with one edge from P to each
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;; element of IMPLICIT. O must not appear among NODES.
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(let-values (((nodes edges) (nodes+edges)))
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(and (equal? (match nodes
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(((labels names) ...)
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names))
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(map package-full-name (cons p implicit)))
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(equal? (match edges
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(((sources destinations) ...)
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(zip (map store-path-package-name sources)
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(map store-path-package-name destinations))))
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(map (lambda (destination)
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(list "p-0.drv"
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(string-append
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(package-full-name destination)
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".drv")))
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implicit)))))))
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(test-assert "bag DAG" ;a big town in Iraq
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(let-values (((backend nodes+edges) (make-recording-backend)))
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(let ((p (dummy-package "p")))
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(run-with-store %store
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(export-graph (list p) 'port
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#:node-type %bag-node-type
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#:backend backend))
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;; We should see P, its implicit inputs as well as the whole DAG, which
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;; should include bootstrap binaries.
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(let-values (((nodes edges) (nodes+edges)))
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(every (lambda (name)
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(find (cut string=? name <>)
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(match nodes
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(((labels names) ...)
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names))))
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(match %bootstrap-inputs
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(((labels packages) ...)
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(map package-full-name packages))))))))
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(test-assert "bag DAG, including origins"
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(let-values (((backend nodes+edges) (make-recording-backend)))
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(let* ((m (lambda* (uri hash-type hash name #:key system)
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(text-file "foo-1.2.3.tar.gz" "This is a fake!")))
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(o (origin (method m) (uri "the-uri") (sha256 #vu8(0 1 2))))
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(p (dummy-package "p" (source o))))
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(run-with-store %store
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(export-graph (list p) 'port
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#:node-type %bag-with-origins-node-type
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#:backend backend))
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;; We should see O among the nodes, with an edge coming from P.
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(let-values (((nodes edges) (nodes+edges)))
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(run-with-store %store
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(mlet %store-monad ((o* (lower-object o))
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(p* (lower-object p))
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(g (lower-object (default-guile))))
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(return
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(and (find (match-lambda
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((file "the-uri") #t)
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(_ #f))
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nodes)
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(find (match-lambda
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((source target)
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(and (string=? source (derivation-file-name p*))
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(string=? target o*))))
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edges)
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;; There must also be an edge from O to G.
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(find (match-lambda
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((source target)
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(and (string=? source o*)
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(string=? target (derivation-file-name g)))))
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edges)))))))))
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(test-assert "derivation DAG"
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(let-values (((backend nodes+edges) (make-recording-backend)))
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(run-with-store %store
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(mlet* %store-monad ((txt (text-file "text-file" "Hello!"))
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(guile (package->derivation %bootstrap-guile))
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(drv (gexp->derivation "output"
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#~(symlink #$txt #$output)
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#:guile-for-build
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guile)))
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;; We should get at least these 3 nodes and corresponding edges.
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(mbegin %store-monad
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(export-graph (list drv) 'port
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#:node-type %derivation-node-type
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#:backend backend)
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(let-values (((nodes edges) (nodes+edges)))
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;; XXX: For some reason we need to throw in some 'basename'.
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(return (and (match nodes
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(((ids labels) ...)
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(let ((ids (map basename ids)))
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(every (lambda (item)
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(member (basename item) ids))
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(list txt
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(derivation-file-name drv)
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(derivation-file-name guile))))))
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(every (cut member <>
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(map (lambda (edge)
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(map basename edge))
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edges))
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(list (map (compose basename derivation-file-name)
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(list drv guile))
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(list (basename (derivation-file-name drv))
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(basename txt))))))))))))
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(test-assert "reference DAG"
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(let-values (((backend nodes+edges) (make-recording-backend)))
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(run-with-store %store
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(mlet* %store-monad ((txt (text-file "text-file" "Hello!"))
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(guile (package->derivation %bootstrap-guile))
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(drv (gexp->derivation "output"
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#~(symlink #$txt #$output)
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#:guile-for-build
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guile))
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(out -> (derivation->output-path drv)))
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;; We should see only OUT and TXT, with an edge from the former to the
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;; latter.
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(mbegin %store-monad
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(built-derivations (list drv))
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(export-graph (list (derivation->output-path drv)) 'port
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#:node-type %reference-node-type
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#:backend backend)
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(let-values (((nodes edges) (nodes+edges)))
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(return
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(and (equal? (match nodes
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(((ids labels) ...)
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ids))
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(list out txt))
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(equal? edges `((,out ,txt)))))))))))
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(test-assert "referrer DAG"
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(let-values (((backend nodes+edges) (make-recording-backend)))
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(run-with-store %store
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(mlet* %store-monad ((txt (text-file "referrer-node" (random-text)))
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(drv (gexp->derivation "referrer"
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#~(symlink #$txt #$output)))
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(out -> (derivation->output-path drv)))
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;; We should see only TXT and OUT, with an edge from the former to the
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;; latter.
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(mbegin %store-monad
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(built-derivations (list drv))
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(export-graph (list txt) 'port
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#:node-type %referrer-node-type
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#:backend backend)
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(let-values (((nodes edges) (nodes+edges)))
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(return
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(and (equal? (match nodes
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(((ids labels) ...)
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ids))
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(list txt out))
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(equal? edges `((,txt ,out)))))))))))
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(test-assert "node-edges"
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(run-with-store %store
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(let ((packages (fold-packages cons '())))
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(mlet %store-monad ((edges (node-edges %package-node-type packages)))
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(return (and (null? (edges sed))
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(lset= eq?
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(edges guile-2.0)
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(match (package-direct-inputs guile-2.0)
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(((labels packages _ ...) ...)
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packages)))))))))
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(test-assert "node-transitive-edges + node-back-edges"
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(run-with-store %store
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(let ((packages (fold-packages cons '()))
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(bootstrap? (lambda (package)
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(string-contains
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(location-file (package-location package))
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"bootstrap.scm")))
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(trivial? (lambda (package)
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(eq? (package-build-system package)
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trivial-build-system))))
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(mlet %store-monad ((edges (node-back-edges %bag-node-type packages)))
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(let* ((glibc (canonical-package glibc))
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(dependents (node-transitive-edges (list glibc) edges))
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(diff (lset-difference eq? packages dependents)))
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;; All the packages depend on libc, except bootstrap packages and
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;; some that use TRIVIAL-BUILD-SYSTEM.
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(return (null? (remove (lambda (package)
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(or (trivial? package)
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(bootstrap? package)))
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diff))))))))
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(test-assert "node-transitive-edges, no duplicates"
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(run-with-store %store
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(let* ((p0 (dummy-package "p0"))
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(p1a (dummy-package "p1a" (inputs `(("p0" ,p0)))))
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(p1b (dummy-package "p1b" (inputs `(("p0" ,p0)))))
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(p2 (dummy-package "p2" (inputs `(("p1a" ,p1a) ("p1b" ,p1b))))))
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(mlet %store-monad ((edges (node-edges %package-node-type
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(list p2 p1a p1b p0))))
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(return (lset= eq? (node-transitive-edges (list p2) edges)
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(list p1a p1b p0)))))))
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(test-equal "node-reachable-count"
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'(3 3)
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(run-with-store %store
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(let* ((p0 (dummy-package "p0"))
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(p1a (dummy-package "p1a" (inputs `(("p0" ,p0)))))
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(p1b (dummy-package "p1b" (inputs `(("p0" ,p0)))))
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(p2 (dummy-package "p2" (inputs `(("p1a" ,p1a) ("p1b" ,p1b))))))
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(mlet* %store-monad ((all -> (list p2 p1a p1b p0))
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(edges (node-edges %package-node-type all))
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(back (node-back-edges %package-node-type all)))
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(return (list (node-reachable-count (list p2) edges)
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(node-reachable-count (list p0) back)))))))
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(test-end "graph")
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