69daee23af
This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
341 lines
14 KiB
Scheme
341 lines
14 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
|
;;; Copyright © 2014 David Thompson <davet@gnu.org>
|
|
;;; Copyright © 2015 Cyril Roelandt <tipecaml@gmail.com>
|
|
;;; Copyright © 2015, 2016, 2017 Ludovic Courtès <ludo@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 (guix import pypi)
|
|
#:use-module (ice-9 binary-ports)
|
|
#:use-module (ice-9 match)
|
|
#:use-module (ice-9 pretty-print)
|
|
#:use-module (ice-9 regex)
|
|
#:use-module ((ice-9 rdelim) #:select (read-line))
|
|
#:use-module (srfi srfi-1)
|
|
#:use-module (srfi srfi-26)
|
|
#:use-module (srfi srfi-34)
|
|
#:use-module (srfi srfi-35)
|
|
#:use-module (rnrs bytevectors)
|
|
#:use-module (json)
|
|
#:use-module (web uri)
|
|
#:use-module (guix ui)
|
|
#:use-module (guix utils)
|
|
#:use-module ((guix build utils)
|
|
#:select ((package-name->name+version
|
|
. hyphen-package-name->name+version)))
|
|
#:use-module (guix import utils)
|
|
#:use-module ((guix download) #:prefix download:)
|
|
#:use-module (guix import json)
|
|
#:use-module (guix packages)
|
|
#:use-module (guix upstream)
|
|
#:use-module ((guix licenses) #:prefix license:)
|
|
#:use-module (guix build-system python)
|
|
#:use-module (gnu packages python)
|
|
#:export (guix-package->pypi-name
|
|
pypi->guix-package
|
|
%pypi-updater))
|
|
|
|
(define (pypi-fetch name)
|
|
"Return an alist representation of the PyPI metadata for the package NAME,
|
|
or #f on failure."
|
|
(json-fetch (string-append "https://pypi.python.org/pypi/"
|
|
name "/json")))
|
|
|
|
;; For packages found on PyPI that lack a source distribution.
|
|
(define-condition-type &missing-source-error &error
|
|
missing-source-error?
|
|
(package missing-source-error-package))
|
|
|
|
(define (latest-source-release pypi-package)
|
|
"Return the latest source release for PYPI-PACKAGE."
|
|
(let ((releases (assoc-ref* pypi-package "releases"
|
|
(assoc-ref* pypi-package "info" "version"))))
|
|
(or (find (lambda (release)
|
|
(string=? "sdist" (assoc-ref release "packagetype")))
|
|
releases)
|
|
(raise (condition (&missing-source-error
|
|
(package pypi-package)))))))
|
|
|
|
(define (latest-wheel-release pypi-package)
|
|
"Return the url of the wheel for the latest release of pypi-package,
|
|
or #f if there isn't any."
|
|
(let ((releases (assoc-ref* pypi-package "releases"
|
|
(assoc-ref* pypi-package "info" "version"))))
|
|
(or (find (lambda (release)
|
|
(string=? "bdist_wheel" (assoc-ref release "packagetype")))
|
|
releases)
|
|
#f)))
|
|
|
|
(define (python->package-name name)
|
|
"Given the NAME of a package on PyPI, return a Guix-compliant name for the
|
|
package."
|
|
(if (string-prefix? "python-" name)
|
|
(snake-case name)
|
|
(string-append "python-" (snake-case name))))
|
|
|
|
(define (guix-package->pypi-name package)
|
|
"Given a Python PACKAGE built from pypi.python.org, return the name of the
|
|
package on PyPI."
|
|
(define (url->pypi-name url)
|
|
(hyphen-package-name->name+version
|
|
(basename (file-sans-extension url))))
|
|
|
|
(match (and=> (package-source package) origin-uri)
|
|
((? string? url)
|
|
(url->pypi-name url))
|
|
((lst ...)
|
|
(any url->pypi-name lst))
|
|
(#f #f)))
|
|
|
|
(define (wheel-url->extracted-directory wheel-url)
|
|
(match (string-split (basename wheel-url) #\-)
|
|
((name version _ ...)
|
|
(string-append name "-" version ".dist-info"))))
|
|
|
|
(define (maybe-inputs package-inputs)
|
|
"Given a list of PACKAGE-INPUTS, tries to generate the 'inputs' field of a
|
|
package definition."
|
|
(match package-inputs
|
|
(()
|
|
'())
|
|
((package-inputs ...)
|
|
`((propagated-inputs (,'quasiquote ,package-inputs))))))
|
|
|
|
(define (guess-requirements source-url wheel-url tarball)
|
|
"Given SOURCE-URL, WHEEL-URL and a TARBALL of the package, return a list of
|
|
the required packages specified in the requirements.txt file. TARBALL will be
|
|
extracted in the current directory, and will be deleted."
|
|
|
|
(define (tarball-directory url)
|
|
;; Given the URL of the package's tarball, return the name of the directory
|
|
;; that will be created upon decompressing it. If the filetype is not
|
|
;; supported, return #f.
|
|
;; TODO: Support more archive formats.
|
|
(let ((basename (substring url (+ 1 (string-rindex url #\/)))))
|
|
(cond
|
|
((string-suffix? ".tar.gz" basename)
|
|
(string-drop-right basename 7))
|
|
((string-suffix? ".tar.bz2" basename)
|
|
(string-drop-right basename 8))
|
|
(else
|
|
(begin
|
|
(warning (G_ "Unsupported archive format: \
|
|
cannot determine package dependencies"))
|
|
#f)))))
|
|
|
|
(define (clean-requirement s)
|
|
;; Given a requirement LINE, as can be found in a Python requirements.txt
|
|
;; file, remove everything other than the actual name of the required
|
|
;; package, and return it.
|
|
(string-take s
|
|
(or (string-index s #\space)
|
|
(string-length s))))
|
|
|
|
(define (comment? line)
|
|
;; Return #t if the given LINE is a comment, #f otherwise.
|
|
(eq? (string-ref (string-trim line) 0) #\#))
|
|
|
|
(define (read-requirements requirements-file)
|
|
;; Given REQUIREMENTS-FILE, a Python requirements.txt file, return a list
|
|
;; of name/variable pairs describing the requirements.
|
|
(call-with-input-file requirements-file
|
|
(lambda (port)
|
|
(let loop ((result '()))
|
|
(let ((line (read-line port)))
|
|
(if (eof-object? line)
|
|
result
|
|
(cond
|
|
((or (string-null? line) (comment? line))
|
|
(loop result))
|
|
(else
|
|
(loop (cons (python->package-name (clean-requirement line))
|
|
result))))))))))
|
|
|
|
(define (read-wheel-metadata wheel-archive)
|
|
;; Given WHEEL-ARCHIVE, a ZIP Python wheel archive, return the package's
|
|
;; requirements.
|
|
(let* ((dirname (wheel-url->extracted-directory wheel-url))
|
|
(json-file (string-append dirname "/metadata.json")))
|
|
(and (zero? (system* "unzip" "-q" wheel-archive json-file))
|
|
(dynamic-wind
|
|
(const #t)
|
|
(lambda ()
|
|
(call-with-input-file json-file
|
|
(lambda (port)
|
|
(let* ((metadata (json->scm port))
|
|
(run_requires (hash-ref metadata "run_requires"))
|
|
(requirements (if run_requires
|
|
(hash-ref (list-ref run_requires 0)
|
|
"requires")
|
|
'())))
|
|
(map (lambda (r)
|
|
(python->package-name (clean-requirement r)))
|
|
requirements)))))
|
|
(lambda ()
|
|
(delete-file json-file)
|
|
(rmdir dirname))))))
|
|
|
|
(define (guess-requirements-from-wheel)
|
|
;; Return the package's requirements using the wheel, or #f if an error
|
|
;; occurs.
|
|
(call-with-temporary-output-file
|
|
(lambda (temp port)
|
|
(if wheel-url
|
|
(and (url-fetch wheel-url temp)
|
|
(read-wheel-metadata temp))
|
|
#f))))
|
|
|
|
|
|
(define (guess-requirements-from-source)
|
|
;; Return the package's requirements by guessing them from the source.
|
|
(let ((dirname (tarball-directory source-url)))
|
|
(if (string? dirname)
|
|
(let* ((req-file (string-append dirname "/requirements.txt"))
|
|
(exit-code (system* "tar" "xf" tarball req-file)))
|
|
;; TODO: support more formats.
|
|
(if (zero? exit-code)
|
|
(dynamic-wind
|
|
(const #t)
|
|
(lambda ()
|
|
(read-requirements req-file))
|
|
(lambda ()
|
|
(delete-file req-file)
|
|
(rmdir dirname)))
|
|
(begin
|
|
(warning (G_ "'tar xf' failed with exit code ~a\n")
|
|
exit-code)
|
|
'())))
|
|
'())))
|
|
|
|
;; First, try to compute the requirements using the wheel, since that is the
|
|
;; most reliable option. If a wheel is not provided for this package, try
|
|
;; getting them by reading the "requirements.txt" file from the source. Note
|
|
;; that "requirements.txt" is not mandatory, so this is likely to fail.
|
|
(or (guess-requirements-from-wheel)
|
|
(guess-requirements-from-source)))
|
|
|
|
|
|
(define (compute-inputs source-url wheel-url tarball)
|
|
"Given the SOURCE-URL of an already downloaded TARBALL, return a list of
|
|
name/variable pairs describing the required inputs of this package."
|
|
(sort
|
|
(map (lambda (input)
|
|
(list input (list 'unquote (string->symbol input))))
|
|
(remove (cut string=? "python-argparse" <>)
|
|
(guess-requirements source-url wheel-url tarball)))
|
|
(lambda args
|
|
(match args
|
|
(((a _ ...) (b _ ...))
|
|
(string-ci<? a b))))))
|
|
|
|
(define (make-pypi-sexp name version source-url wheel-url home-page synopsis
|
|
description license)
|
|
"Return the `package' s-expression for a python package with the given NAME,
|
|
VERSION, SOURCE-URL, HOME-PAGE, SYNOPSIS, DESCRIPTION, and LICENSE."
|
|
(call-with-temporary-output-file
|
|
(lambda (temp port)
|
|
(and (url-fetch source-url temp)
|
|
`(package
|
|
(name ,(python->package-name name))
|
|
(version ,version)
|
|
(source (origin
|
|
(method url-fetch)
|
|
|
|
;; Sometimes 'pypi-uri' doesn't quite work due to mixed
|
|
;; cases in NAME, for instance, as is the case with
|
|
;; "uwsgi". In that case, fall back to a full URL.
|
|
(uri ,(if (equal? (pypi-uri name version) source-url)
|
|
`(pypi-uri ,name version)
|
|
`(string-append
|
|
,@(factorize-uri source-url version))))
|
|
|
|
(sha256
|
|
(base32
|
|
,(guix-hash-url temp)))))
|
|
(build-system python-build-system)
|
|
,@(maybe-inputs (compute-inputs source-url wheel-url temp))
|
|
(home-page ,home-page)
|
|
(synopsis ,synopsis)
|
|
(description ,description)
|
|
(license ,(license->symbol license)))))))
|
|
|
|
(define (pypi->guix-package package-name)
|
|
"Fetch the metadata for PACKAGE-NAME from pypi.python.org, and return the
|
|
`package' s-expression corresponding to that package, or #f on failure."
|
|
(let ((package (pypi-fetch package-name)))
|
|
(and package
|
|
(guard (c ((missing-source-error? c)
|
|
(let ((package (missing-source-error-package c)))
|
|
(leave (G_ "no source release for pypi package ~a ~a~%")
|
|
(assoc-ref* package "info" "name")
|
|
(assoc-ref* package "info" "version")))))
|
|
(let ((name (assoc-ref* package "info" "name"))
|
|
(version (assoc-ref* package "info" "version"))
|
|
(release (assoc-ref (latest-source-release package) "url"))
|
|
(wheel (assoc-ref (latest-wheel-release package) "url"))
|
|
(synopsis (assoc-ref* package "info" "summary"))
|
|
(description (assoc-ref* package "info" "summary"))
|
|
(home-page (assoc-ref* package "info" "home_page"))
|
|
(license (string->license (assoc-ref* package "info" "license"))))
|
|
(make-pypi-sexp name version release wheel home-page synopsis
|
|
description license))))))
|
|
|
|
(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") 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 (pypi-package? package)
|
|
"Return true if PACKAGE is a Python package from PyPI."
|
|
|
|
(define (pypi-url? url)
|
|
(or (string-prefix? "https://pypi.python.org/" url)
|
|
(string-prefix? "https://pypi.io/packages" url)))
|
|
|
|
(let ((source-url (and=> (package-source package) origin-uri))
|
|
(fetch-method (and=> (package-source package) origin-method)))
|
|
(and (eq? fetch-method download:url-fetch)
|
|
(match source-url
|
|
((? string?)
|
|
(pypi-url? source-url))
|
|
((source-url ...)
|
|
(any pypi-url? source-url))))))
|
|
|
|
(define (latest-release package)
|
|
"Return an <upstream-source> for the latest release of PACKAGE."
|
|
(guard (c ((missing-source-error? c) #f))
|
|
(let* ((pypi-name (guix-package->pypi-name package))
|
|
(metadata (pypi-fetch pypi-name))
|
|
(version (assoc-ref* metadata "info" "version"))
|
|
(url (assoc-ref (latest-source-release metadata) "url")))
|
|
(upstream-source
|
|
(package (package-name package))
|
|
(version version)
|
|
(urls (list url))))))
|
|
|
|
(define %pypi-updater
|
|
(upstream-updater
|
|
(name 'pypi)
|
|
(description "Updater for PyPI packages")
|
|
(pred pypi-package?)
|
|
(latest latest-release)))
|