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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016-2017, 2019-2023 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2021 Marius Bakke <marius@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-transformations)
  #:use-module (guix tests)
  #:use-module (guix store)
  #:use-module ((guix gexp) #:select (lower-object))
  #:use-module ((guix profiles)
                #:select (package->manifest-entry
                          manifest-entry-properties))
  #:use-module (guix derivations)
  #:use-module (guix packages)
  #:use-module (guix git-download)
  #:use-module (guix build-system)
  #:use-module (guix build-system gnu)
  #:use-module (guix transformations)
  #:use-module ((guix gexp)
                #:select (local-file? local-file-file
                          computed-file? computed-file-gexp
                          gexp-input-thing gexp->approximate-sexp))
  #:use-module (guix ui)
  #:use-module (guix utils)
  #:use-module (guix git)
  #:use-module (guix upstream)
  #:use-module (guix diagnostics)
  #:use-module (gnu packages)
  #:use-module (gnu packages base)
  #:use-module (gnu packages busybox)
  #:use-module (ice-9 match)
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-26)
  #:use-module (srfi srfi-34)
  #:use-module (srfi srfi-64))


(test-begin "transformations")

(test-assert "options->transformation, no transformations"
  (let ((p (dummy-package "foo"))
        (t (options->transformation '())))
    (eq? (t p) p)))

(test-assert "options->transformation, with-source"
  ;; Our pseudo-package is called 'guix.scm' so the 'guix.scm' source should
  ;; be applicable.
  (let* ((p (dummy-package "guix.scm"))
         (s (search-path %load-path "guix.scm"))
         (t (options->transformation `((with-source . ,s)))))
    (with-store store
      (let* ((new (t p))
             (source (run-with-store store
                       (lower-object (package-source new)))))
        (and (not (eq? new p))
             (string=? source
                       (add-to-store store "guix.scm" #t
                                     "sha256" s)))))))

(test-assert "options->transformation, with-source, replacement"
  ;; Same, but this time the original package has a 'replacement' field.  We
  ;; expect that replacement to be set to #f in the new package.
  (let* ((p (dummy-package "guix.scm" (replacement coreutils)))
         (s (search-path %load-path "guix.scm"))
         (t (options->transformation `((with-source . ,s)))))
    (let ((new (t p)))
      (and (not (eq? new p))
           (not (package-replacement new))))))

(test-assert "options->transformation, with-source, with version"
  ;; Our pseudo-package is called 'guix.scm' so the 'guix.scm-2.0' source
  ;; should be applicable, and its version should be extracted.
  (let ((p (dummy-package "foo"))
        (s (search-path %load-path "guix.scm")))
    (call-with-temporary-directory
     (lambda (directory)
       (let* ((f (string-append directory "/foo-42.0.tar.gz"))
              (t (options->transformation `((with-source . ,f)))))
         (copy-file s f)
         (with-store store
           (let* ((new (t p))
                  (source (run-with-store store
                            (lower-object (package-source new)))))
             (and (not (eq? new p))
                  (string=? (package-name new) (package-name p))
                  (string=? (package-version new) "42.0")
                  (string=? source
                            (add-to-store store (basename f) #t
                                          "sha256" f))))))))))

(test-assert "options->transformation, with-source, no matches"
  (let* ((p (dummy-package "foobar"))
         (s (search-path %load-path "guix.scm"))
         (t (options->transformation `((with-source . ,s)))))
    (eq? (package-source (t p))
         (package-source p))))

(test-assert "options->transformation, with-source, PKG=URI"
  (let* ((p (dummy-package "foo"))
         (s (search-path %load-path "guix.scm"))
         (f (string-append "foo=" s))
         (t (options->transformation `((with-source . ,f)))))
    (with-store store
      (let* ((new (t p))
             (source (run-with-store store
                       (lower-object (package-source new)))))
        (and (not (eq? new p))
             (string=? (package-name new) (package-name p))
             (string=? (package-version new)
                       (package-version p))
             (string=? source
                       (add-to-store store (basename s) #t
                                     "sha256" s)))))))

(test-assert "options->transformation, with-source, PKG@VER=URI"
  (let* ((p (dummy-package "foo"))
         (s (search-path %load-path "guix.scm"))
         (f (string-append "foo@42.0=" s))
         (t (options->transformation `((with-source . ,f)))))
    (with-store store
      (let* ((new (t p))
             (source (run-with-store store
                       (lower-object (package-source new)))))
        (and (not (eq? new p))
             (string=? (package-name new) (package-name p))
             (string=? (package-version new) "42.0")
             (string=? source
                       (add-to-store store (basename s) #t
                                     "sha256" s)))))))

(test-assert "options->transformation, with-source, in depth"
  (let* ((p0 (dummy-package "foo" (version "0.0")))
         (s  (search-path %load-path "guix.scm"))
         (f  (string-append "foo@42.0=" s))
         (t  (options->transformation `((with-source . ,f))))
         (p1 (dummy-package "bar" (inputs (list p0))))
         (p2 (dummy-package "baz" (inputs (list p1)))))
    (with-store store
      (let ((new (t p2)))
        (and (not (eq? new p2))
             (match (package-inputs new)
               ((("bar" p1*))
                (match (package-inputs p1*)
                  ((("foo" p0*))
                   (and (not (eq? p0* p0))
                        (string=? (package-name p0*) (package-name p0))
                        (string=? (package-version p0*) "42.0")
                        (string=? (add-to-store store (basename s) #t
                                                "sha256" s)
                                  (run-with-store store
                                    (lower-object
                                     (package-source p0*))))))))))))))

(test-assert "options->transformation, with-input"
  (let* ((p (dummy-package "guix.scm"
              (inputs `(("foo" ,(specification->package "coreutils"))
                        ("bar" ,(specification->package "grep"))
                        ("baz" ,(dummy-package "chbouib"
                                  (native-inputs `(("x" ,grep)))))))))
         (t (options->transformation '((with-input . "coreutils=busybox")
                                       (with-input . "grep=findutils")))))
    (let ((new (t p)))
      (and (not (eq? new p))
           (match (package-inputs new)
             ((("foo" dep1) ("bar" dep2) ("baz" dep3))
              (and (string=? (package-full-name dep1)
                             (package-full-name busybox))
                   (string=? (package-full-name dep2)
                             (package-full-name findutils))
                   (string=? (package-name dep3) "chbouib")
                   (match (package-native-inputs dep3)
                     ((("x" dep))
                      (string=? (package-full-name dep)
                                (package-full-name findutils)))))))))))

;; The following test requires grafting enabled, but it becomes extremely
;; expensive if there's a graft on glibc or other package deep in the graph.
(when (package-replacement (@ (gnu packages commencement) glibc-final))
  (test-skip 1))

(test-assert "options->transformation, with-graft"
  (let* ((p (dummy-package "guix.scm"
              (inputs `(("foo" ,grep)
                        ("bar" ,(dummy-package "chbouib"
                                  (native-inputs `(("x" ,grep)))))))))
         (t (options->transformation '((with-graft . "grep=findutils")))))
    (let ((new (t p)))
      (and (not (eq? new p))
           (match (package-inputs new)
             ((("foo" dep1) ("bar" dep2))
              (and (string=? (package-full-name dep1)
                             (package-full-name grep))
                   (string=? (package-full-name (package-replacement dep1))
                             (package-full-name findutils))
                   (string=? (package-name dep2) "chbouib")
                   (match (package-native-inputs dep2)
                     ((("x" dep))
                      (with-store store
                        (string=? (derivation-file-name
                                   (package-derivation store findutils))
                                  (derivation-file-name
                                   (package-derivation store dep)))))))))))))

(test-equal "options->transformation, with-branch"
  (git-checkout (url "https://example.org")
                (branch "devel")
                (recursive? #t))
  (let* ((p (dummy-package "guix.scm"
              (inputs `(("foo" ,grep)
                        ("bar" ,(dummy-package "chbouib"
                                  (source (origin
                                            (method git-fetch)
                                            (uri (git-reference
                                                  (url "https://example.org")
                                                  (commit "cabba9e")))
                                            (sha256 #f)))))))))
         (t (options->transformation '((with-branch . "chbouib=devel")))))
    (let ((new (t p)))
      (and (not (eq? new p))
           (match (package-inputs new)
             ((("foo" dep1) ("bar" dep2))
              (and (string=? (package-full-name dep1)
                             (package-full-name grep))
                   (string=? (package-name dep2) "chbouib")
                   (package-source dep2))))))))

(test-equal "options->transformation, with-commit"
  (git-checkout (url "https://example.org")
                (commit "abcdef")
                (recursive? #t))
  (let* ((p (dummy-package "guix.scm"
              (inputs `(("foo" ,grep)
                        ("bar" ,(dummy-package "chbouib"
                                  (source (origin
                                            (method git-fetch)
                                            (uri (git-reference
                                                  (url "https://example.org")
                                                  (commit "cabba9e")))
                                            (sha256 #f)))))))))
         (t (options->transformation '((with-commit . "chbouib=abcdef")))))
    (let ((new (t p)))
      (and (not (eq? new p))
           (match (package-inputs new)
             ((("foo" dep1) ("bar" dep2))
              (and (string=? (package-full-name dep1)
                             (package-full-name grep))
                   (string=? (package-name dep2) "chbouib")
                   (package-source dep2))))))))

(test-equal "options->transformation, with-commit, version transformation"
  '("1.0" "1.0-rc1-2-gabc123" "git.abc123")
  (map (lambda (commit)
         (let* ((p (dummy-package "guix.scm"
                     (inputs `(("foo" ,(dummy-package "chbouib"
                                         (source (origin
                                                   (method git-fetch)
                                                   (uri (git-reference
                                                         (url "https://example.org")
                                                         (commit "cabba9e")))
                                                   (sha256 #f)))))))))
                (t (options->transformation
                    `((with-commit . ,(string-append "chbouib=" commit))))))
           (let ((new (t p)))
             (and (not (eq? new p))
                  (match (package-inputs new)
                    ((("foo" dep1))
                     (package-version dep1)))))))
       '("v1.0" "1.0-rc1-2-gabc123" "abc123")))

(test-equal "options->transformation, with-git-url"
  (let ((source (git-checkout (url "https://example.org")
                              (recursive? #t))))
    (list source source))
  (let* ((p (dummy-package "guix.scm"
              (inputs `(("foo" ,grep)
                        ("bar" ,(dummy-package "chbouib"
                                  (native-inputs `(("x" ,grep)))))))))
         (t (options->transformation '((with-git-url . "grep=https://example.org")))))
    (let ((new (t p)))
      (and (not (eq? new p))
           (match (package-inputs new)
             ((("foo" dep1) ("bar" dep2))
              (and (string=? (package-full-name dep1)
                             (package-full-name grep))
                   (string=? (package-name dep2) "chbouib")
                   (match (package-native-inputs dep2)
                     ((("x" dep3))
                      (map package-source (list dep1 dep3)))))))))))

(test-equal "options->transformation, with-git-url + with-branch"
  ;; Combine the two options and make sure the 'with-branch' transformation
  ;; comes after the 'with-git-url' transformation.
  (let ((source (git-checkout (url "https://example.org")
                              (branch "BRANCH")
                              (recursive? #t))))
    (list source source))
  (let* ((p (dummy-package "guix.scm"
              (inputs `(("foo" ,grep)
                        ("bar" ,(dummy-package "chbouib"
                                  (native-inputs `(("x" ,grep)))))))))
         (t (options->transformation
             (reverse '((with-git-url
                         . "grep=https://example.org")
                        (with-branch . "grep=BRANCH"))))))
    (let ((new (t p)))
      (and (not (eq? new p))
           (match (package-inputs new)
             ((("foo" dep1) ("bar" dep2))
              (and (string=? (package-name dep1) "grep")
                   (string=? (package-name dep2) "chbouib")
                   (match (package-native-inputs dep2)
                     ((("x" dep3))
                      (map package-source (list dep1 dep3)))))))))))

(define* (depends-on-toolchain? p #:optional (toolchain "gcc-toolchain"))
  "Return true if P depends on TOOLCHAIN instead of the default tool chain."
  (define toolchain-packages
    '("gcc" "binutils" "glibc" "ld-wrapper"))

  (define (package-name* obj)
    (and (package? obj) (package-name obj)))

  (match (bag-build-inputs (package->bag p))
    (((_ (= package-name* packages) . _) ...)
     (and (not (any (cut member <> packages) toolchain-packages))
          (member toolchain packages)))))

(test-assert "options->transformation, with-c-toolchain"
  (let* ((dep0 (dummy-package "chbouib"
                 (build-system gnu-build-system)
                 (native-inputs `(("y" ,grep)))))
         (dep1 (dummy-package "stuff"
                 (native-inputs `(("x" ,dep0)))))
         (p    (dummy-package "thingie"
                 (build-system gnu-build-system)
                 (inputs `(("foo" ,grep)
                           ("bar" ,dep1)))))
         (t    (options->transformation
                '((with-c-toolchain . "chbouib=gcc-toolchain")))))
    ;; Here we check that the transformation applies to DEP0 and all its
    ;; dependents: DEP0 must use GCC-TOOLCHAIN, DEP1 must use GCC-TOOLCHAIN
    ;; and the DEP0 that uses GCC-TOOLCHAIN, and so on.
    (let ((new (t p)))
      (and (depends-on-toolchain? new "gcc-toolchain")
           (match (bag-build-inputs (package->bag new))
             ((("foo" dep0) ("bar" dep1) _ ...)
              (and (depends-on-toolchain? dep1 "gcc-toolchain")
                   (not (depends-on-toolchain? dep0 "gcc-toolchain"))
                   (string=? (package-full-name dep0)
                             (package-full-name grep))
                   (match (bag-build-inputs (package->bag dep1))
                     ((("x" dep) _ ...)
                      (and (depends-on-toolchain? dep "gcc-toolchain")
                           (match (bag-build-inputs (package->bag dep))
                             ((("y" dep) _ ...)   ;this one is unchanged
                              (eq? dep grep)))))))))))))

(test-equal "options->transformation, with-c-toolchain twice"
  (package-full-name grep)
  (let* ((dep0 (dummy-package "chbouib"))
         (dep1 (dummy-package "stuff"))
         (p    (dummy-package "thingie"
                 (build-system gnu-build-system)
                 (inputs `(("foo" ,dep0)
                           ("bar" ,dep1)
                           ("baz" ,grep)))))
         (t    (options->transformation
                '((with-c-toolchain . "chbouib=clang-toolchain")
                  (with-c-toolchain . "stuff=clang-toolchain")))))
    (let ((new (t p)))
      (and (depends-on-toolchain? new "clang-toolchain")
           (match (bag-build-inputs (package->bag new))
             ((("foo" dep0) ("bar" dep1) ("baz" dep2) _ ...)
              (and (depends-on-toolchain? dep0 "clang-toolchain")
                   (depends-on-toolchain? dep1 "clang-toolchain")
                   (not (depends-on-toolchain? dep2 "clang-toolchain"))
                   (package-full-name dep2))))))))

(test-assert "options->transformation, with-c-toolchain, no effect"
  (let ((p (dummy-package "thingie"))
        (t (options->transformation
            '((with-c-toolchain . "does-not-exist=gcc-toolchain")))))
    ;; When it has no effect, '--with-c-toolchain' returns P.
    (eq? (t p) p)))

(test-equal "options->transformation, with-debug-info"
  '(#:strip-binaries? #f)
  (let* ((dep  (dummy-package "chbouib"))
         (p    (dummy-package "thingie"
                 (build-system gnu-build-system)
                 (inputs `(("foo" ,dep)
                           ("bar" ,grep)))))
         (t    (options->transformation
                '((with-debug-info . "chbouib")))))
    (let ((new (t p)))
      (match (package-inputs new)
        ((("foo" dep0) ("bar" dep1))
         (and (string=? (package-full-name dep1)
                        (package-full-name grep))
              (package-arguments (package-replacement dep0))))))))

(test-equal "options->transformation, with-configure-flag"
  '(append '() '("--flag=42"))
  (let* ((p   (dummy-package "foo"
                (build-system gnu-build-system)))
         (t   (options->transformation
               '((with-configure-flag . "foo=--flag=42")))))
    (let ((new (t p)))
      (match (package-arguments new)
        ((#:configure-flags flags)
         (gexp->approximate-sexp flags))))))

(test-assert "options->transformation, without-tests"
  (let* ((dep (dummy-package "dep"))
         (p   (dummy-package "foo"
                (inputs `(("dep" ,dep)))))
         (t   (options->transformation '((without-tests . "dep")
                                         (without-tests . "tar")))))
    (let ((new (t p)))
      (match (bag-direct-inputs (package->bag new))
        ((("dep" dep) ("tar" tar) _ ...)
         (and (equal? (package-arguments dep) '(#:tests? #f))
              (match (memq #:tests? (package-arguments tar))
                ((#:tests? #f _ ...) #t))))))))

(test-equal "options->transformation, with-patch"
  (search-patches "glibc-locales.patch" "guile-relocatable.patch")
  (let* ((dep    (dummy-package "dep"
                   (source (dummy-origin))))
         (p      (dummy-package "foo"
                   (inputs `(("dep" ,dep)))))
         (patch1 (search-patch "glibc-locales.patch"))
         (patch2 (search-patch "guile-relocatable.patch"))
         (t      (options->transformation
                  `((with-patch . ,(string-append "dep=" patch1))
                    (with-patch . ,(string-append "dep=" patch2))
                    (with-patch . ,(string-append "tar=" patch1))))))
    (let ((new (t p)))
      (match (bag-direct-inputs (package->bag new))
        ((("dep" dep) ("tar" tar) _ ...)
         (and (member patch1
                      (filter-map (lambda (patch)
                                    (and (local-file? patch)
                                         (local-file-file patch)))
                                  (origin-patches (package-source tar))))
              (map local-file-file
                   (origin-patches (package-source dep)))))))))

(test-equal "options->transformation, with-commit + with-patch"
  '(#t #t)
  (let* ((patch  (search-patch "glibc-locales.patch"))
         (commit "f8934ec94df5868ee8baf1fb0f8ed0f24e7e91eb")
         (t      (options->transformation
                  ;; Note: options are applied in reverse order, so
                  ;; 'with-patch' comes on top.
                  `((with-patch . ,(string-append "guile-gcrypt=" patch))
                    (with-commit
                     . ,(string-append "guile-gcrypt=" commit))))))
    (let ((new (t (@ (gnu packages gnupg) guile-gcrypt))))
      (match (package-source new)
        ((? computed-file? source)
         (let* ((gexp   (computed-file-gexp source))
                (inputs (map gexp-input-thing
                             ((@@ (guix gexp) gexp-inputs) gexp))))
           (list (any (lambda (input)
                        (and (git-checkout? input)
                             (string=? commit (git-checkout-commit input))))
                      inputs)
                 (any (lambda (input)
                        (and (local-file? input)
                             (string=? (local-file-file input) patch)))
                      inputs))))))))

(test-equal "options->transformation, property order"
  ;; See <https://issues.guix.gnu.org/54942>.
  '((with-debug-info . "does-not-exist")
    (with-commit . "does-not-exist=aaaaaaa")
    (without-tests . "does-not-exist"))
  (let* ((t (options->transformation
             '((with-debug-info . "does-not-exist")
               (with-commit . "does-not-exist=aaaaaaa")
               (without-tests . "does-not-exist")))))
    (let ((new (t coreutils)))
      (assq-ref (package-properties new) 'transformations))))

(test-equal "options->transformation, with-latest"
  "42.0"
  (mock ((guix upstream) %updaters
         (delay (list (upstream-updater
                       (name 'dummy)
                       (pred (const #t))
                       (description "")
                       (import (const (upstream-source
                                         (package "foo")
                                         (version "42.0")
                                         (urls '("http://example.org")))))))))
        (let* ((p (dummy-package "foo" (version "1.0")))
               (t (options->transformation
                   `((with-latest . "foo")))))
          (package-version (t p)))))

(test-equal "options->transformation, with-version"
  "1.0"
  (mock ((guix upstream) %updaters
         (delay (list (upstream-updater
                       (name 'dummy)
                       (pred (const #t))
                       (description "")
                       (import (const (upstream-source
                                         (package "foo")
                                         (version "1.0")
                                         (urls '("http://example.org")))))))))
        (let* ((p0 (dummy-package "foo" (version "7.7")))
               (p1 (dummy-package "bar" (inputs (list p0))))
               (t  (options->transformation
                    `((with-version . "foo=1.0")))))
          (package-version (lookup-package-input (t p1) "foo")))))

(test-equal "options->transformation, tune"
  '(cpu-tuning . "superfast")
  (let* ((p0 (dummy-package "p0"))
         (p1 (dummy-package "p1"
               (inputs `(("p0" ,p0)))
               (properties '((tunable? . #t)))))
         (p2 (dummy-package "p2"
               (inputs `(("p1" ,p1)))))
         (t  (options->transformation '((tune . "superfast"))))
         (p3 (t p2)))
    (and (not (package-replacement p3))
         (match (package-inputs p3)
           ((("p1" tuned))
            (match (package-inputs tuned)
              ((("p0" p0))
               (and (not (package-replacement p0))
                    (assq 'cpu-tuning
                          (package-properties
                           (package-replacement tuned)))))))))))

(test-assert "options->transformations, tune, wrong micro-architecture"
  (let ((p (dummy-package "tunable"
             (properties '((tunable? . #t)))))
        (t (options->transformation '((tune . "nonexistent-superfast")))))
    ;; Because GCC used by P's build system does not support
    ;; '-march=nonexistent-superfast', we should see an error when lowering
    ;; the tuned package.
    (guard (c ((formatted-message? c)
               (member "nonexistent-superfast"
                       (formatted-message-arguments c))))
      (package->bag (t p))
      #f)))

(test-equal "options->transformation + package->manifest-entry"
  '((transformations . ((without-tests . "foo"))))
  (let* ((p (dummy-package "foo"))
         (t (options->transformation '((without-tests . "foo"))))
         (e (package->manifest-entry (t p))))
    (manifest-entry-properties e)))

(test-end)

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