Subject: [bug#42338] [PATCH v3 1/7] guix: import: Add composer importer.

From: Nicolas Graves <[email-masked]>
Date: Tue, 26 Sep 2023 12:43:39 +0200

I've just added some modernizations and fixes ontop of the :
- first patch which is the latest provided in the discussion between
Ludo' and Julien, with minimal fixes.
- second and third patch which are the versions from Adam Faiz.

The recursive import should work with these patches but often fails,
probably because it loops and we eventually get a gnu-tls error probably
from when github refuses to serve, because it doesn't stop on a specific
package. This probably will stop looping so much one phpunit is added,
with the later patches from Julien adding phpunit. In any case, it's
definitely a more robust recursive import, and the error Adam
experienced has been solved in the fifth patch. The sixth patch also
avoids some licensing-related failures.

On 2023-09-26 12:31, Nicolas Graves wrote:

> * guix/import/composer.scm: New file.
> * guix/scripts/import/composer.scm: New file.
> * guix/tests/composer.scm: New file.
> * Makefile.am: Add them.
> * guix/scripts/import.scm: Add composer importer.
> * doc/guix.texi (Invoking guix import): Mention it.
> ---
>  Makefile.am                      |   3 +
>  doc/guix.texi                    |  20 +++
>  guix/import/composer.scm         | 270 +++++++++++++++++++++++++++++++
>  guix/scripts/import.scm          |   2 +-
>  guix/scripts/import/composer.scm | 107 ++++++++++++
>  tests/composer.scm               |  92 +++++++++++
>  6 files changed, 493 insertions(+), 1 deletion(-)
>  create mode 100644 guix/import/composer.scm
>  create mode 100644 guix/scripts/import/composer.scm
>  create mode 100644 tests/composer.scm
>
> diff --git a/Makefile.am b/Makefile.am
> index 8924974e8a..3ce7ee832e 100644
> --- a/Makefile.am
> +++ b/Makefile.am
> @@ -274,6 +274,7 @@ MODULES =					\
>    guix/search-paths.scm				\
>    guix/packages.scm				\
>    guix/import/cabal.scm				\
> +  guix/import/composer.scm			\
>    guix/import/cpan.scm				\
>    guix/import/cran.scm				\
>    guix/import/crate.scm				\
> @@ -332,6 +333,7 @@ MODULES =					\
>    guix/scripts/home/import.scm			\
>    guix/scripts/lint.scm				\
>    guix/scripts/challenge.scm			\
> +  guix/scripts/import/composer.scm		\
>    guix/scripts/import/crate.scm			\
>    guix/scripts/import/cpan.scm			\
>    guix/scripts/import/cran.scm			\
> @@ -500,6 +502,7 @@ SCM_TESTS =					\
>    tests/challenge.scm				\
>    tests/channels.scm				\
>    tests/combinators.scm			\
> +  tests/composer.scm				\
>    tests/containers.scm				\
>    tests/cpan.scm				\
>    tests/cpio.scm				\
> diff --git a/doc/guix.texi b/doc/guix.texi
> index 46591b2f64..4d2fc11cd7 100644
> --- a/doc/guix.texi
> +++ b/doc/guix.texi
> @@ -14530,6 +14530,26 @@ Invoking guix import
>
>  Additional options include:
>
> +@table @code
> +@item --recursive
> +@itemx -r
> +Traverse the dependency graph of the given upstream package recursively
> +and generate package expressions for all those packages that are not yet
> +in Guix.
> +@end table
> +
> +@item composer
> +@cindex Composer
> +@cindex PHP
> +Import metadat from the @uref{https://getcomposer.org/, Composer} package
> +archive used by the PHP community, as in this example:
> +
> +@example
> +guix import composer phpunit/phpunit
> +@end example
> +
> +Additional options include:
> +
>  @table @code
>  @item --recursive
>  @itemx -r
> diff --git a/guix/import/composer.scm b/guix/import/composer.scm
> new file mode 100644
> index 0000000000..c152f402bb
> --- /dev/null
> +++ b/guix/import/composer.scm
> @@ -0,0 +1,270 @@
> +;;; GNU Guix --- Functional package management for GNU
> +;;; Copyright © 2019 Julien Lepiller <[email-masked]>
> +;;;
> +;;; 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 (guix import composer)
> +  #:use-module (ice-9 match)
> +  #:use-module (json)
> +  #:use-module (gcrypt hash)
> +  #:use-module (guix base32)
> +  #:use-module (guix build git)
> +  #:use-module (guix build utils)
> +  #:use-module (guix build-system)
> +  #:use-module (guix import json)
> +  #:use-module (guix import utils)
> +  #:use-module ((guix licenses) #:prefix license:)
> +  #:use-module (guix packages)
> +  #:use-module (guix serialization)
> +  #:use-module (guix upstream)
> +  #:use-module (guix utils)
> +  #:use-module (srfi srfi-1)
> +  #:use-module (srfi srfi-11)
> +  #:use-module (srfi srfi-26)
> +  #:export (composer->guix-package
> +            %composer-updater
> +            composer-recursive-import
> +
> +            %composer-base-url))
> +
> +(define %composer-base-url
> +  (make-parameter "https://repo.packagist.org"))
> +
> +;; XXX adapted from (guix scripts hash)
> +(define (file-hash file select? recursive?)
> +  ;; Compute the hash of FILE.
> +  (if recursive?
> +      (let-values (((port get-hash) (open-sha256-port)))
> +        (write-file file port #:select? select?)
> +        (force-output port)
> +        (get-hash))
> +      (call-with-input-file file port-sha256)))
> +
> +;; XXX taken from (guix scripts hash)
> +(define (vcs-file? file stat)
> +  (case (stat:type stat)
> +    ((directory)
> +     (member (basename file) '(".bzr" ".git" ".hg" ".svn" "CVS")))
> +    ((regular)
> +     ;; Git sub-modules have a '.git' file that is a regular text file.
> +     (string=? (basename file) ".git"))
> +    (else
> +     #f)))
> +
> +(define (fix-version version)
> +  "Return a fixed version from a version string.  For instance, v10.1 -> 10.1"
> +  (cond
> +    ((string-prefix? "version" version)
> +     (if (char-set-contains? char-set:digit (string-ref version 7))
> +         (substring version 7)
> +         (substring version 8)))
> +    ((string-prefix? "v" version)
> +     (substring version 1))
> +    (else version)))
> +
> +(define (latest-version versions)
> +  (fold (lambda (a b) (if (version>? (fix-version a) (fix-version b)) a b))
> +        (car versions) versions))
> +
> +(define (json->require dict)
> +  (if dict
> +      (let loop ((result '()) (require dict))
> +        (match require
> +          (() result)
> +          ((((? (cut string-contains <> "/") name) . _)
> +             require ...)
> +           (loop (cons name result) require))
> +          ((_ require ...) (loop result require))))
> +      '()))
> +
> +(define-json-mapping <composer-source> make-composer-source composer-source?
> +  json->composer-source
> +  (type      composer-source-type)
> +  (url       composer-source-url)
> +  (reference composer-source-reference))
> +
> +(define-json-mapping <composer-package> make-composer-package composer-package?
> +  json->composer-package
> +  (description composer-package-description)
> +  (homepage    composer-package-homepage)
> +  (source      composer-package-source "source" json->composer-source)
> +  (name        composer-package-name "name" php-package-name)
> +  (version     composer-package-version "version" fix-version)
> +  (require     composer-package-require "require" json->require)
> +  (dev-require composer-package-dev-require "require-dev" json->require)
> +  (license     composer-package-license "license"
> +               (lambda (vector)
> +                 (map string->license (vector->list vector)))))
> +
> +(define* (composer-fetch name #:optional version)
> +  "Return an alist representation of the Composer metadata for the package NAME,
> +or #f on failure."
> +  (let ((package (json-fetch
> +                   (string-append (%composer-base-url) "/p/" name ".json"))))
> +    (if package
> +        (let* ((packages (assoc-ref package "packages"))
> +               (package (or (assoc-ref packages name) package))
> +               (versions (filter
> +                           (lambda (version)
> +                             (and (not (string-contains version "dev"))
> +                                  (not (string-contains version "beta"))))
> +                           (map car package)))
> +               (version (or (if (null? version) #f version)
> +                            (latest-version versions))))
> +          (assoc-ref package version))
> +        #f)))
> +
> +(define (php-package-name name)
> +  "Given the NAME of a package on Packagist, return a Guix-compliant name for
> +the package."
> +  (let ((name (string-join (string-split name #\/) "-")))
> +    (if (string-prefix? "php-" name)
> +        (snake-case name)
> +        (string-append "php-" (snake-case name)))))
> +
> +(define (make-php-sexp composer-package)
> +  "Return the `package' s-expression for a PHP package for the given
> +COMPOSER-PACKAGE."
> +  (let* ((source (composer-package-source composer-package))
> +         (dependencies (map php-package-name
> +                            (composer-package-require composer-package)))
> +         (dev-dependencies (map php-package-name
> +                                (composer-package-dev-require composer-package)))
> +         (git? (equal? (composer-source-type source) "git")))
> +    ((if git? call-with-temporary-directory call-with-temporary-output-file)
> +     (lambda* (temp #:optional port)
> +       (and (if git?
> +                (begin
> +                  (mkdir-p temp)
> +                  (git-fetch (composer-source-url source)
> +                             (composer-source-reference source)
> +                             temp))
> +                (url-fetch (composer-source-url source) temp))
> +            `(package
> +               (name ,(composer-package-name composer-package))
> +               (version ,(composer-package-version composer-package))
> +               (source (origin
> +                         ,@(if git?
> +                               `((method git-fetch)
> +                                 (uri (git-reference
> +                                        (url ,(composer-source-url source))
> +                                        (commit ,(composer-source-reference source))))
> +                                 (file-name (git-file-name name version))
> +                                 (sha256
> +                                   (base32
> +                                     ,(bytevector->nix-base32-string
> +                                       (file-hash temp (negate vcs-file?) #t)))))
> +                               `((method url-fetch)
> +                                 (uri ,(composer-source-url source))
> +                                 (sha256 (base32 ,(guix-hash-url temp)))))))
> +               (build-system composer-build-system)
> +               ,@(if (null? dependencies)
> +                     '()
> +                     `((inputs
> +                        (,'quasiquote
> +                         ,(map (lambda (name)
> +                                 `(,name
> +                                   (,'unquote
> +                                    ,(string->symbol name))))
> +                               dependencies)))))
> +               ,@(if (null? dev-dependencies)
> +                     '()
> +                     `((native-inputs
> +                        (,'quasiquote
> +                         ,(map (lambda (name)
> +                                 `(,name
> +                                   (,'unquote
> +                                    ,(string->symbol name))))
> +                               dev-dependencies)))))
> +               (synopsis "")
> +               (description ,(composer-package-description composer-package))
> +               (home-page ,(composer-package-homepage composer-package))
> +               (license ,(match (composer-package-license composer-package)
> +                           (() #f)
> +                           ((license) license)
> +                           (_ license)))))))))
> +
> +(define* (composer->guix-package package-name #:optional version)
> +  "Fetch the metadata for PACKAGE-NAME from packagist.org, and return the
> +`package' s-expression corresponding to that package, or #f on failure."
> +  (let ((package (composer-fetch package-name version)))
> +    (and package
> +         (let* ((package (json->composer-package package))
> +                (dependencies-names (composer-package-require package))
> +                (dev-dependencies-names (composer-package-dev-require package)))
> +           (values (make-php-sexp package)
> +                   (append dependencies-names dev-dependencies-names))))))
> +
> +(define (guix-name->composer-name name)
> +  "Given a guix package name, return the name of the package in Packagist."
> +  (if (string-prefix? "php-" name)
> +      (let ((components (string-split (substring name 4) #\-)))
> +        (match components
> +          ((namespace name ...)
> +           (string-append namespace "/" (string-join name "-")))))
> +      name))
> +
> +(define (guix-package->composer-name package)
> +  "Given a Composer PACKAGE built from Packagist, return the name of the
> +package in Packagist."
> +  (let ((upstream-name (assoc-ref
> +                         (package-properties package)
> +                         'upstream-name))
> +        (name (package-name package)))
> +    (if upstream-name
> +      upstream-name
> +      (guix-name->composer-name name))))
> +
> +(define (string->license str)
> +  "Convert the string STR into a license object."
> +  (match str
> +    ("GNU LGPL" 'license:lgpl2.0)
> +    ("GPL" 'license:gpl3)
> +    ((or "BSD" "BSD License" "BSD-3-Clause") 'license:bsd-3)
> +    ((or "MIT" "MIT license" "Expat license") 'license:expat)
> +    ("Public domain" 'license:public-domain)
> +    ((or "Apache License, Version 2.0" "Apache 2.0") 'license:asl2.0)
> +    (_ #f)))
> +
> +(define (php-package? package)
> +  "Return true if PACKAGE is a PHP package from Packagist."
> +  (and
> +    (eq? (build-system-name (package-build-system package)) 'composer)
> +    (string-prefix? "php-" (package-name package))))
> +
> +(define (latest-release package)
> +  "Return an <upstream-source> for the latest release of PACKAGE."
> +  (let* ((php-name (guix-package->composer-name package))
> +         (metadata (composer-fetch php-name))
> +         (package (json->composer-package metadata))
> +         (version (composer-package-version package))
> +         (url (composer-source-url (composer-package-source package))))
> +    (upstream-source
> +     (package (package-name package))
> +     (version version)
> +     (urls (list url)))))
> +
> +(define %composer-updater
> +  (upstream-updater
> +   (name 'composer)
> +   (description "Updater for Composer packages")
> +   (pred php-package?)
> +   (import latest-release)))
> +
> +(define* (composer-recursive-import package-name #:optional version)
> +  (recursive-import package-name '()
> +                    #:repo->guix-package composer->guix-package
> +                    #:guix-name php-package-name))
> diff --git a/guix/scripts/import.scm b/guix/scripts/import.scm
> index 4ddd8d46a1..8c58dd35e2 100644
> --- a/guix/scripts/import.scm
> +++ b/guix/scripts/import.scm
> @@ -47,7 +47,7 @@ (define %standard-import-options '())
>
>  (define importers '("gnu" "pypi" "cpan" "hackage" "stackage" "egg" "elpa"
>                      "gem" "go" "cran" "crate" "texlive" "json" "opam"
> -                    "minetest" "elm" "hexpm"))
> +                    "minetest" "elm" "hexpm" "composer"))
>
>  (define (resolve-importer name)
>    (let ((module (resolve-interface
> diff --git a/guix/scripts/import/composer.scm b/guix/scripts/import/composer.scm
> new file mode 100644
> index 0000000000..412bae6318
> --- /dev/null
> +++ b/guix/scripts/import/composer.scm
> @@ -0,0 +1,107 @@
> +;;; GNU Guix --- Functional package management for GNU
> +;;; Copyright © 2015 David Thompson <[email-masked]>
> +;;; Copyright © 2018 Oleg Pykhalov <[email-masked]>
> +;;;
> +;;; 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 (guix scripts import composer)
> +  #:use-module (guix ui)
> +  #:use-module (guix utils)
> +  #:use-module (guix scripts)
> +  #:use-module (guix import composer)
> +  #:use-module (guix scripts import)
> +  #:use-module (srfi srfi-1)
> +  #:use-module (srfi srfi-11)
> +  #:use-module (srfi srfi-37)
> +  #:use-module (srfi srfi-41)
> +  #:use-module (ice-9 match)
> +  #:use-module (ice-9 format)
> +  #:export (guix-import-composer))
> +
> +
> +;;;
> +;;; Command-line options.
> +;;;
> +
> +(define %default-options
> +  '())
> +
> +(define (show-help)
> +  (display (G_ "Usage: guix import composer PACKAGE-NAME
> +Import and convert the Composer package for PACKAGE-NAME.\n"))
> +  (display (G_ "
> +  -h, --help             display this help and exit"))
> +  (display (G_ "
> +  -V, --version          display version information and exit"))
> +  (display (G_ "
> +  -r, --recursive        generate package expressions for all Composer packages\
> + that are not yet in Guix"))
> +  (newline)
> +  (show-bug-report-information))
> +
> +(define %options
> +  ;; Specification of the command-line options.
> +  (cons* (option '(#\h "help") #f #f
> +                 (lambda args
> +                   (show-help)
> +                   (exit 0)))
> +         (option '(#\V "version") #f #f
> +                 (lambda args
> +                   (show-version-and-exit "guix import composer")))
> +         (option '(#\r "recursive") #f #f
> +                 (lambda (opt name arg result)
> +                   (alist-cons 'recursive #t result)))
> +         %standard-import-options))
> +
> +
> +;;;
> +;;; Entry point.
> +;;;
> +
> +(define (guix-import-composer . args)
> +  (define (parse-options)
> +    ;; Return the alist of option values.
> +    (args-fold* args %options
> +                (lambda (opt name arg result)
> +                  (leave (G_ "~A: unrecognized option~%") name))
> +                (lambda (arg result)
> +                  (alist-cons 'argument arg result))
> +                %default-options))
> +
> +  (let* ((opts (parse-options))
> +         (args (filter-map (match-lambda
> +                            (('argument . value)
> +                             value)
> +                            (_ #f))
> +                           (reverse opts))))
> +    (match args
> +      ((package-name)
> +       (if (assoc-ref opts 'recursive)
> +           (map (match-lambda
> +                  ((and ('package ('name name) . rest) pkg)
> +                   `(define-public ,(string->symbol name)
> +                      ,pkg))
> +                  (_ #f))
> +                (composer-recursive-import package-name))
> +           (let ((sexp (composer->guix-package package-name)))
> +             (unless sexp
> +               (leave (G_ "failed to download meta-data for package '~a'~%")
> +                      package-name))
> +             sexp)))
> +      (()
> +       (leave (G_ "too few arguments~%")))
> +      ((many ...)
> +       (leave (G_ "too many arguments~%"))))))
> diff --git a/tests/composer.scm b/tests/composer.scm
> new file mode 100644
> index 0000000000..cefaf9f434
> --- /dev/null
> +++ b/tests/composer.scm
> @@ -0,0 +1,92 @@
> +;;; GNU Guix --- Functional package management for GNU
> +;;; Copyright © 2020 Julien Lepiller <[email-masked]>
> +;;;
> +;;; 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-composer)
> +  #:use-module (guix import composer)
> +  #:use-module (guix base32)
> +  #:use-module (gcrypt hash)
> +  #:use-module (guix tests http)
> +  #:use-module (guix grafts)
> +  #:use-module (srfi srfi-64)
> +  #:use-module (web client)
> +  #:use-module (ice-9 match))
> +
> +;; Globally disable grafts because they can trigger early builds.
> +(%graft? #f)
> +
> +(define test-json
> +  "{
> +  \"packages\": {
> +    \"foo/bar\": {
> +      \"0.1\": {
> +        \"name\": \"foo/bar\",
> +        \"description\": \"description\",
> +        \"keywords\": [\"testing\"],
> +        \"homepage\": \"http://example.com\",
> +        \"version\": \"0.1\",
> +        \"license\": [\"BSD-3-Clause\"],
> +        \"source\": {
> +          \"type\": \"url\",
> +          \"url\": \"http://example.com/Bar-0.1.tar.gz\"
> +        },
> +        \"require\": {},
> +        \"require-dev\": {\"phpunit/phpunit\": \"1.0.0\"}
> +      }
> +    }
> +  }
> +}")
> +
> +(define test-source
> +  "foobar")
> +
> +;; Avoid collisions with other tests.
> +(%http-server-port 10450)
> +
> +(test-begin "composer")
> +
> +(test-assert "composer->guix-package"
> +  ;; Replace network resources with sample data.
> +  (with-http-server `((200 ,test-json)
> +                      (200 ,test-source))
> +    (parameterize ((%composer-base-url (%local-url))
> +                   (current-http-proxy (%local-url)))
> +      (match (composer->guix-package "foo/bar")
> +        (('package
> +           ('name "php-foo-bar")
> +           ('version "0.1")
> +           ('source ('origin
> +                      ('method 'url-fetch)
> +                      ('uri "http://example.com/Bar-0.1.tar.gz")
> +                      ('sha256
> +                       ('base32
> +                        (? string? hash)))))
> +           ('build-system 'composer-build-system)
> +           ('native-inputs
> +            ('quasiquote
> +             (("php-phpunit-phpunit" ('unquote 'php-phpunit-phpunit)))))
> +           ('synopsis "")
> +           ('description "description")
> +           ('home-page "http://example.com")
> +           ('license 'license:bsd-3))
> +         (string=? (bytevector->nix-base32-string
> +                    (call-with-input-string test-source port-sha256))
> +                   hash))
> +        (x
> +         (pk 'fail x #f))))))
> +
> +(test-end "composer")
>
> base-commit: fafd3caef0d51811a5da81d6061789e2908b0dac
> prerequisite-patch-id: eb618ab7b10483d917c308a38792af98baa517e2
> prerequisite-patch-id: c12968d02d99c253f858586a86b16fa32d41f1c1
> prerequisite-patch-id: 09d995d48139f8e61183d5634cda13a01cdb50f7
> prerequisite-patch-id: 86baa45ec2aad977c8c8135f7613aa391155de6d
> prerequisite-patch-id: 3425fbbff6a603d60b4e143ea2141aabf4ddc92c
> prerequisite-patch-id: c373c01aab5dcba3503a97d51c62a595147a041c
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> prerequisite-patch-id: 8e234d0f4d93d2aad499eec8842be3d28da98707
> prerequisite-patch-id: 5f664cb2fd995a53765c5ffc19a708ac795cc0c4
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> prerequisite-patch-id: 34502820d8c0355b3ed2638c457084edeaba029d
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> prerequisite-patch-id: ada6a2d9427bff9dd7fd115a91300a1f7379995c
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> prerequisite-patch-id: c89b0fc7dadc53facc45ccf9991503430b7e7799
> prerequisite-patch-id: d62e2be8f9fd6a1d9ac8dfa2cdc4db6d4a4327ac
> prerequisite-patch-id: f8f4375b2b16ffae596d416607c00b374f485299
> prerequisite-patch-id: 36b1a9c3e0e9f91b7172e1211231759a6cb81473
> prerequisite-patch-id: 8cb6ac6a5188c817bb3a6a86920001de75bb7225
> prerequisite-patch-id: 17ef87336a8c664e0109a7466c9f7d37f5901167

-- 
Best regards,
Nicolas Graves