diff options
Diffstat (limited to 'guix/import/pypi.scm')
| -rw-r--r-- | guix/import/pypi.scm | 173 |
1 files changed, 99 insertions, 74 deletions
diff --git a/guix/import/pypi.scm b/guix/import/pypi.scm index 25560bac46..87b047bdac 100644 --- a/guix/import/pypi.scm +++ b/guix/import/pypi.scm @@ -3,6 +3,7 @@ ;;; Copyright © 2015 Cyril Roelandt <tipecaml@gmail.com> ;;; Copyright © 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com> +;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net> ;;; ;;; This file is part of GNU Guix. ;;; @@ -24,6 +25,7 @@ #:use-module (ice-9 match) #:use-module (ice-9 pretty-print) #:use-module (ice-9 regex) + #:use-module (ice-9 receive) #:use-module ((ice-9 rdelim) #:select (read-line)) #:use-module (srfi srfi-1) #:use-module (srfi srfi-26) @@ -36,7 +38,8 @@ #:use-module (guix utils) #:use-module ((guix build utils) #:select ((package-name->name+version - . hyphen-package-name->name+version))) + . hyphen-package-name->name+version) + find-files)) #:use-module (guix import utils) #:use-module ((guix download) #:prefix download:) #:use-module (guix import json) @@ -45,6 +48,7 @@ #:use-module ((guix licenses) #:prefix license:) #:use-module (guix build-system python) #:export (guix-package->pypi-name + pypi-recursive-import pypi->guix-package %pypi-updater)) @@ -114,9 +118,9 @@ package definition." `((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." + "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 a temporary directory." (define (tarball-directory url) ;; Given the URL of the package's tarball, return the name of the directory @@ -140,8 +144,8 @@ cannot determine package dependencies")) ;; 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)))) + (or (string-index s (lambda (chr) (member chr '(#\space #\> #\= #\<)))) + (string-length s)))) (define (comment? line) ;; Return #t if the given LINE is a comment, #f otherwise. @@ -160,7 +164,7 @@ cannot determine package dependencies")) ((or (string-null? line) (comment? line)) (loop result)) (else - (loop (cons (python->package-name (clean-requirement line)) + (loop (cons (clean-requirement line) result)))))))))) (define (read-wheel-metadata wheel-archive) @@ -180,9 +184,7 @@ cannot determine package dependencies")) (hash-ref (list-ref run_requires 0) "requires") '()))) - (map (lambda (r) - (python->package-name (clean-requirement r))) - requirements))))) + (map clean-requirement requirements))))) (lambda () (delete-file json-file) (rmdir dirname)))))) @@ -197,31 +199,37 @@ cannot determine package dependencies")) (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) - '()))) + (call-with-temporary-directory + (lambda (dir) + (let* ((pypi-name (string-take dirname (string-rindex dirname #\-))) + (req-files (list (string-append dirname "/requirements.txt") + (string-append dirname "/" pypi-name ".egg-info" + "/requires.txt"))) + (exit-codes (map (lambda (file-name) + (parameterize ((current-error-port (%make-void-port "rw+")) + (current-output-port (%make-void-port "rw+"))) + (system* "tar" "xf" tarball "-C" dir file-name))) + req-files))) + ;; Only one of these files needs to exist. + (if (any zero? exit-codes) + (match (find-files dir) + ((file . _) + (read-requirements file)) + (() + (warning (G_ "No requirements file found.\n")))) + (begin + (warning (G_ "Failed to extract requirements files\n")) + '()))))) '()))) ;; 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 + ;; getting them by reading either the "requirements.txt" file or the + ;; "requires.txt" from the egg-info directory from the source tarball. Note ;; that "requirements.txt" is not mandatory, so this is likely to fail. (or (guess-requirements-from-wheel) (guess-requirements-from-source))) @@ -229,16 +237,21 @@ cannot determine package dependencies")) (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)))))) +name/variable pairs describing the required inputs of this package. Also +return the unaltered list of upstream dependency names." + (let ((dependencies + (remove (cut string=? "argparse" <>) + (guess-requirements source-url wheel-url tarball)))) + (values (sort + (map (lambda (input) + (let ((guix-name (python->package-name input))) + (list guix-name (list 'unquote (string->symbol guix-name))))) + dependencies) + (lambda args + (match args + (((a _ ...) (b _ ...)) + (string-ci<? a b))))) + dependencies))) (define (make-pypi-sexp name version source-url wheel-url home-page synopsis description license) @@ -247,46 +260,58 @@ 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) + (receive (input-package-names upstream-dependency-names) + (compute-inputs source-url wheel-url temp) + (values + `(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 (pypi-uri ,(string-downcase name) 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))))))) + ;; 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 (pypi-uri ,(string-downcase name) version)) + (sha256 + (base32 + ,(guix-hash-url temp))))) + (build-system python-build-system) + ,@(maybe-inputs input-package-names) + (home-page ,home-page) + (synopsis ,synopsis) + (description ,description) + (license ,(license->symbol license))) + upstream-dependency-names)))))) -(define (pypi->guix-package package-name) - "Fetch the metadata for PACKAGE-NAME from pypi.org, and return the +(define pypi->guix-package + (memoize + (lambda* (package-name) + "Fetch the metadata for PACKAGE-NAME from pypi.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)))))) + (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 (pypi-recursive-import package-name) + (recursive-import package-name #f + #:repo->guix-package (lambda (name repo) + (pypi->guix-package name)) + #:guix-name python->package-name)) (define (string->license str) "Convert the string STR into a license object." |