9916ae15bb
* guix/import/cran.scm (latest-bioconductor-release): Wrap Bioconductor URL in list in the "urls" field of the "upstream-source" value.
307 lines
12 KiB
Scheme
307 lines
12 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2015, 2016 Ricardo Wurmus <rekado@elephly.net>
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;;; Copyright © 2015, 2016 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 (guix import cran)
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#:use-module (ice-9 match)
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#:use-module (ice-9 regex)
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#:use-module ((ice-9 rdelim) #:select (read-string))
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:use-module (guix http-client)
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#:use-module (guix hash)
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#:use-module (guix store)
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#:use-module (guix base32)
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#:use-module ((guix download) #:select (download-to-store))
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#:use-module (guix import utils)
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#:use-module ((guix build-system r) #:select (cran-uri bioconductor-uri))
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#:use-module (guix upstream)
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#:use-module (guix packages)
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#:export (cran->guix-package
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bioconductor->guix-package
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%cran-updater
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%bioconductor-updater))
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;;; Commentary:
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;;;
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;;; Generate a package declaration template for the latest version of an R
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;;; package on CRAN, using the DESCRIPTION file downloaded from
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;;; cran.r-project.org.
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;;;
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;;; Code:
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(define string->license
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(match-lambda
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("AGPL-3" 'agpl3+)
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("Artistic-2.0" 'artistic2.0)
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("Apache License 2.0" 'asl2.0)
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("BSD_2_clause" 'bsd-2)
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("BSD_3_clause" 'bsd-3)
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("GPL" (list 'gpl2+ 'gpl3+))
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("GPL (>= 2)" 'gpl2+)
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("GPL (>= 3)" 'gpl3+)
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("GPL-2" 'gpl2+)
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("GPL-3" 'gpl3+)
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("LGPL-2" 'lgpl2.0+)
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("LGPL-2.1" 'lgpl2.1+)
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("LGPL-3" 'lgpl3+)
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("LGPL (>= 2)" 'lgpl2.0+)
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("LGPL (>= 3)" 'lgpl3+)
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("MIT" 'x11)
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("MIT + file LICENSE" 'x11)
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((x) (string->license x))
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((lst ...) `(list ,@(map string->license lst)))
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(_ #f)))
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(define (description->alist description)
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"Convert a DESCRIPTION string into an alist."
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(let ((lines (string-split description #\newline))
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(parse (lambda (line acc)
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(if (string-null? line) acc
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;; Keys usually start with a capital letter and end with
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;; ":". There are some exceptions, unfortunately (such
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;; as "biocViews"). There are no blanks in a key.
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(if (string-match "^[A-Za-z][^ :]+:( |\n|$)" line)
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;; New key/value pair
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(let* ((pos (string-index line #\:))
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(key (string-take line pos))
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(value (string-drop line (+ 1 pos))))
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(cons (cons key
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(string-trim-both value))
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acc))
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;; This is a continuation of the previous pair
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(match-let ((((key . value) . rest) acc))
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(cons (cons key (string-join
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(list value
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(string-trim-both line))))
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rest)))))))
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(fold parse '() lines)))
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(define (format-inputs names)
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"Generate a sorted list of package inputs from a list of package NAMES."
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(map (lambda (name)
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(list name (list 'unquote (string->symbol name))))
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(sort names string-ci<?)))
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(define* (maybe-inputs package-inputs #:optional (type 'inputs))
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"Given a list of PACKAGE-INPUTS, tries to generate the TYPE field of a
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package definition."
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(match package-inputs
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(()
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'())
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((package-inputs ...)
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`((,type (,'quasiquote ,(format-inputs package-inputs)))))))
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(define %cran-url "http://cran.r-project.org/web/packages/")
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(define %bioconductor-url "http://bioconductor.org/packages/")
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;; The latest Bioconductor release is 3.3. Bioconductor packages should be
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;; updated together.
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(define %bioconductor-svn-url
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(string-append "https://readonly:readonly@"
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"hedgehog.fhcrc.org/bioconductor/branches/RELEASE_3_3/"
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"madman/Rpacks/"))
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(define (fetch-description base-url name)
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"Return an alist of the contents of the DESCRIPTION file for the R package
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NAME, or #f on failure. NAME is case-sensitive."
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;; This API always returns the latest release of the module.
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(let ((url (string-append base-url name "/DESCRIPTION")))
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(description->alist (read-string (http-fetch url)))))
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(define (listify meta field)
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"Look up FIELD in the alist META. If FIELD contains a comma-separated
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string, turn it into a list and strip off parenthetic expressions. Return the
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empty list when the FIELD cannot be found."
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(let ((value (assoc-ref meta field)))
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(if (not value)
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'()
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;; Strip off parentheses
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(let ((items (string-split (regexp-substitute/global
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#f "( *\\([^\\)]+\\)) *"
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value 'pre 'post)
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#\,)))
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(remove (lambda (item)
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(or (string-null? item)
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;; When there is whitespace inside of items it is
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;; probably because this was not an actual list to
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;; begin with.
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(string-any char-set:whitespace item)))
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(map string-trim-both items))))))
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(define (description->package repository meta)
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"Return the `package' s-expression for an R package published on REPOSITORY
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from the alist META, which was derived from the R package's DESCRIPTION file."
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(define (guix-name name)
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(if (string-prefix? "r-" name)
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(string-downcase name)
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(string-append "r-" (string-downcase name))))
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(let* ((base-url (case repository
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((cran) %cran-url)
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((bioconductor) %bioconductor-url)))
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(uri-helper (case repository
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((cran) cran-uri)
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((bioconductor) bioconductor-uri)))
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(name (assoc-ref meta "Package"))
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(synopsis (assoc-ref meta "Title"))
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(version (assoc-ref meta "Version"))
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(license (string->license (assoc-ref meta "License")))
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;; Some packages have multiple home pages. Some have none.
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(home-page (match (listify meta "URL")
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((url rest ...) url)
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(_ (string-append base-url name))))
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(source-url (match (uri-helper name version)
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((url rest ...) url)
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((? string? url) url)
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(_ #f)))
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(tarball (with-store store (download-to-store store source-url)))
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(sysdepends (map string-downcase (listify meta "SystemRequirements")))
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(propagate (map guix-name (lset-union equal?
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(listify meta "Imports")
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(listify meta "LinkingTo")
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(delete "R"
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(listify meta "Depends"))))))
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`(package
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(name ,(guix-name name))
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(version ,version)
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(source (origin
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(method url-fetch)
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(uri (,(procedure-name uri-helper) ,name version))
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(sha256
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(base32
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,(bytevector->nix-base32-string (file-sha256 tarball))))))
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,@(if (not (equal? (string-append "r-" name)
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(guix-name name)))
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`((properties ,`(,'quasiquote ((,'upstream-name . ,name)))))
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'())
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(build-system r-build-system)
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,@(maybe-inputs sysdepends)
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,@(maybe-inputs propagate 'propagated-inputs)
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(home-page ,(if (string-null? home-page)
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(string-append base-url name)
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home-page))
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(synopsis ,synopsis)
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(description ,(beautify-description (assoc-ref meta "Description")))
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(license ,license))))
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(define* (cran->guix-package package-name #:optional (repo 'cran))
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"Fetch the metadata for PACKAGE-NAME from REPO and return the `package'
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s-expression corresponding to that package, or #f on failure."
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(let* ((url (case repo
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((cran) %cran-url)
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((bioconductor) %bioconductor-svn-url)))
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(module-meta (fetch-description url package-name)))
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(and=> module-meta (cut description->package repo <>))))
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;;;
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;;; Updater.
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;;;
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(define (package->upstream-name package)
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"Return the upstream name of the PACKAGE."
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(let* ((properties (package-properties package))
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(upstream-name (and=> properties
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(cut assoc-ref <> 'upstream-name))))
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(if upstream-name
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upstream-name
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(match (package-source package)
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((? origin? origin)
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(match (origin-uri origin)
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((or (? string? url) (url _ ...))
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(let ((end (string-rindex url #\_))
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(start (string-rindex url #\/)))
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;; The URL ends on
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;; (string-append "/" name "_" version ".tar.gz")
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(substring url start end)))
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(_ #f)))
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(_ #f)))))
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(define (latest-cran-release package)
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"Return an <upstream-source> for the latest release of PACKAGE."
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(define upstream-name
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(package->upstream-name package))
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(define meta
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(fetch-description %cran-url upstream-name))
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(and meta
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(let ((version (assoc-ref meta "Version")))
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;; CRAN does not provide signatures.
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(upstream-source
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(package (package-name package))
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(version version)
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(urls (cran-uri upstream-name version))))))
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(define (latest-bioconductor-release package)
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"Return an <upstream-source> for the latest release of PACKAGE."
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(define upstream-name
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(package->upstream-name package))
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(define meta
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(fetch-description %bioconductor-svn-url upstream-name))
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(and meta
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(let ((version (assoc-ref meta "Version")))
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;; Bioconductor does not provide signatures.
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(upstream-source
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(package (package-name package))
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(version version)
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(urls (list (bioconductor-uri upstream-name version)))))))
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(define (cran-package? package)
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"Return true if PACKAGE is an R package from CRAN."
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(and (string-prefix? "r-" (package-name package))
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(match (and=> (package-source package) origin-uri)
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((? string? uri)
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(string-prefix? "mirror://cran" uri))
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((? list? uris)
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(any (cut string-prefix? "mirror://cran" <>) uris))
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(_ #f))))
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(define (bioconductor-package? package)
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"Return true if PACKAGE is an R package from Bioconductor."
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(and (string-prefix? "r-" (package-name package))
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(match (and=> (package-source package) origin-uri)
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((? string? uri)
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(string-prefix? "http://bioconductor.org" uri))
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((? list? uris)
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(any (cut string-prefix? "http://bioconductor.org" <>) uris))
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(_ #f))))
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(define %cran-updater
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(upstream-updater
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(name 'cran)
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(description "Updater for CRAN packages")
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(pred cran-package?)
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(latest latest-cran-release)))
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(define %bioconductor-updater
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(upstream-updater
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(name 'bioconductor)
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(description "Updater for Bioconductor packages")
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(pred bioconductor-package?)
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(latest latest-bioconductor-release)))
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;;; cran.scm ends here
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