69b0a847fb
* guix/import/hackage.scm (hackage-module->sexp): Do not repeat inputs again in native-inputs. native-inputs should only contain packages that are not already listed in inputs.
352 lines
13 KiB
Scheme
352 lines
13 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
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;;; Copyright © 2016 Eric Bavier <bavier@member.fsf.org>
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;;; Copyright © 2016 Nils Gillmann <ng0@n0.is>
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;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
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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 hackage)
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#:use-module (ice-9 match)
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#:use-module (ice-9 regex)
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#:use-module (srfi srfi-34)
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#:use-module (srfi srfi-26)
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#:use-module (srfi srfi-11)
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#:use-module (srfi srfi-1)
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#:use-module ((guix download) #:select (download-to-store url-fetch))
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#:use-module ((guix utils) #:select (package-name->name+version
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canonical-newline-port))
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#:use-module (guix http-client)
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#:use-module ((guix import utils) #:select (factorize-uri recursive-import))
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#:use-module (guix import cabal)
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#:use-module (guix store)
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#:use-module (gcrypt hash)
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#:use-module (guix base32)
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#:use-module (guix memoization)
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#:use-module (guix upstream)
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#:use-module (guix packages)
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#:use-module ((guix utils) #:select (call-with-temporary-output-file))
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#:export (hackage->guix-package
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hackage-recursive-import
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%hackage-updater
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guix-package->hackage-name
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hackage-name->package-name
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hackage-fetch
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hackage-source-url
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hackage-cabal-url
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hackage-package?))
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(define ghc-standard-libraries
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;; List of libraries distributed with ghc (7.10.2). We include GHC itself as
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;; some packages list it.
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'("array"
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"base"
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"bin-package-db"
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"binary"
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"bytestring"
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"cabal" ;; in the output of `ghc-pkg list` Cabal is uppercased, but
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;; hackage-name->package-name takes this into account.
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"containers"
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"deepseq"
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"directory"
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"filepath"
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"ghc"
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"ghc-prim"
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"haskeline"
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"hoopl"
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"hpc"
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"integer-gmp"
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"pretty"
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"process"
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"rts"
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"template-haskell"
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"terminfo"
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"time"
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"transformers"
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"unix"
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"win32"
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"xhtml"))
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(define package-name-prefix "ghc-")
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(define (hackage-source-url name version)
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"Given a Hackage package NAME and VERSION, return a url to the source
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tarball."
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(string-append "https://hackage.haskell.org/package/" name
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"/" name "-" version ".tar.gz"))
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(define* (hackage-cabal-url name #:optional version)
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"Given a Hackage package NAME and VERSION, return a url to the corresponding
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.cabal file on Hackage. If VERSION is #f or missing, the url for the latest
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version is returned."
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(if version
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(string-append "https://hackage.haskell.org/package/"
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name "-" version "/" name ".cabal")
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(string-append "https://hackage.haskell.org/package/"
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name "/" name ".cabal")))
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(define (hackage-name->package-name name)
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"Given the NAME of a Cabal package, return the corresponding Guix name."
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(if (string-prefix? package-name-prefix name)
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(string-downcase name)
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(string-append package-name-prefix (string-downcase name))))
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(define guix-package->hackage-name
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(let ((uri-rx (make-regexp "https?://hackage.haskell.org/package/([^/]+)/.*"))
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(name-rx (make-regexp "(.*)-[0-9\\.]+")))
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(lambda (package)
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"Given a Guix package name, return the corresponding Hackage name."
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(let* ((source-url (and=> (package-source package) origin-uri))
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(name (match:substring (regexp-exec uri-rx source-url) 1)))
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(match (regexp-exec name-rx name)
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(#f name)
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(m (match:substring m 1)))))))
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(define (hackage-fetch name-version)
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"Return the Cabal file for the package NAME-VERSION, or #f on failure. If
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the version part is omitted from the package name, then return the latest
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version."
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(guard (c ((and (http-get-error? c)
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(= 404 (http-get-error-code c)))
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#f)) ;"expected" if package is unknown
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(let-values (((name version) (package-name->name+version name-version)))
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(let* ((url (hackage-cabal-url name version))
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(port (http-fetch url))
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(result (read-cabal (canonical-newline-port port))))
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(close-port port)
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result))))
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(define string->license
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;; List of valid values from
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;; https://www.haskell.org
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;; /cabal/release/cabal-latest/doc/API/Cabal/Distribution-License.html.
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(match-lambda
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("GPL-2" 'gpl2)
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("GPL-3" 'gpl3)
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("GPL" "'gpl??")
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("AGPL-3" 'agpl3)
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("AGPL" "'agpl??")
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("LGPL-2.1" 'lgpl2.1)
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("LGPL-3" 'lgpl3)
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("LGPL" "'lgpl??")
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("BSD2" 'bsd-2)
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("BSD3" 'bsd-3)
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("MIT" 'expat)
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("ISC" 'isc)
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("MPL" 'mpl2.0)
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("Apache-2.0" 'asl2.0)
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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 (cabal-dependencies->names cabal)
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"Return the list of dependencies names from the CABAL package object,
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not including test suite dependencies or custom-setup dependencies."
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(let* ((lib (cabal-package-library cabal))
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(lib-deps (if (pair? lib)
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(map cabal-dependency-name
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(append-map cabal-library-dependencies lib))
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'()))
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(exe (cabal-package-executables cabal))
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(exe-deps (if (pair? exe)
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(map cabal-dependency-name
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(append-map cabal-executable-dependencies exe))
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'())))
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(delete-duplicates (append lib-deps exe-deps))))
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(define (cabal-test-dependencies->names cabal)
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"Return the list of test suite dependencies from the CABAL package
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object."
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(let* ((ts (cabal-package-test-suites cabal))
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(ts-deps (if (pair? ts)
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(map cabal-dependency-name
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(append-map cabal-test-suite-dependencies ts))
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'())))
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ts-deps))
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(define (cabal-custom-setup-dependencies->names cabal)
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"Return the list of custom-setup dependencies from the CABAL package
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object."
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(let* ((custom-setup-dependencies (or (and=> (cabal-package-custom-setup cabal)
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cabal-custom-setup-dependencies)
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'())))
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(map cabal-dependency-name custom-setup-dependencies)))
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(define (filter-dependencies dependencies own-name)
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"Filter the dependencies included with the GHC compiler from DEPENDENCIES, a
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list with the names of dependencies. OWN-NAME is the name of the Cabal
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package being processed and is used to filter references to itself."
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(filter (lambda (d) (not (member (string-downcase d)
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(cons own-name ghc-standard-libraries))))
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dependencies))
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(define* (hackage-module->sexp cabal #:key (include-test-dependencies? #t))
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"Return the `package' S-expression for a Cabal package. CABAL is the
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representation of a Cabal file as produced by 'read-cabal'."
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(define name
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(cabal-package-name cabal))
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(define version
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(cabal-package-version cabal))
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(define source-url
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(hackage-source-url name version))
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(define hackage-dependencies
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((compose (cut filter-dependencies <>
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(cabal-package-name cabal))
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(cut cabal-dependencies->names <>))
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cabal))
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(define hackage-native-dependencies
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(lset-difference
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equal?
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((compose (cut filter-dependencies <>
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(cabal-package-name cabal))
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;; FIXME: Check include-test-dependencies?
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(lambda (cabal)
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(append (if include-test-dependencies?
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(cabal-test-dependencies->names cabal)
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'())
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(cabal-custom-setup-dependencies->names cabal))))
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cabal)
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hackage-dependencies))
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(define dependencies
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(map (lambda (name)
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(list name (list 'unquote (string->symbol name))))
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(map hackage-name->package-name
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hackage-dependencies)))
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(define native-dependencies
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(map (lambda (name)
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(list name (list 'unquote (string->symbol name))))
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(map hackage-name->package-name
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hackage-native-dependencies)))
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(define (maybe-inputs input-type inputs)
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(match inputs
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(()
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'())
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((inputs ...)
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(list (list input-type
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(list 'quasiquote inputs))))))
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(define (maybe-arguments)
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(if (not include-test-dependencies?)
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'((arguments `(#:tests? #f)))
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'()))
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(let ((tarball (with-store store
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(download-to-store store source-url))))
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(values
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`(package
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(name ,(hackage-name->package-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 (string-append ,@(factorize-uri source-url version)))
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(sha256
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(base32
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,(if tarball
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(bytevector->nix-base32-string (file-sha256 tarball))
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"failed to download tar archive")))))
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(build-system haskell-build-system)
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,@(maybe-inputs 'inputs dependencies)
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,@(maybe-inputs 'native-inputs native-dependencies)
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,@(maybe-arguments)
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(home-page ,(cabal-package-home-page cabal))
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(synopsis ,(cabal-package-synopsis cabal))
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(description ,(cabal-package-description cabal))
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(license ,(string->license (cabal-package-license cabal))))
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(append hackage-dependencies hackage-native-dependencies))))
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(define hackage->guix-package
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(memoize
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(lambda* (package-name #:key
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(include-test-dependencies? #t)
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(port #f)
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(cabal-environment '()))
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"Fetch the Cabal file for PACKAGE-NAME from hackage.haskell.org, or, if the
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called with keyword parameter PORT, from PORT. Return the `package'
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S-expression corresponding to that package, or #f on failure.
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CABAL-ENVIRONMENT is an alist defining the environment in which the Cabal
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conditionals are evaluated. The accepted keys are: \"os\", \"arch\", \"impl\"
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and the name of a flag. The value associated with a flag has to be either the
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symbol 'true' or 'false'. The value associated with other keys has to conform
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to the Cabal file format definition. The default value associated with the
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keys \"os\", \"arch\" and \"impl\" is \"linux\", \"x86_64\" and \"ghc\"
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respectively."
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(let ((cabal-meta (if port
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(read-cabal (canonical-newline-port port))
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(hackage-fetch package-name))))
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(and=> cabal-meta (compose (cut hackage-module->sexp <>
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#:include-test-dependencies?
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include-test-dependencies?)
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(cut eval-cabal <> cabal-environment)))))))
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(define* (hackage-recursive-import package-name . args)
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(recursive-import package-name #f
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#:repo->guix-package (lambda (name repo)
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(apply hackage->guix-package (cons name args)))
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#:guix-name hackage-name->package-name))
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(define (hackage-package? package)
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"Return #t if PACKAGE is a Haskell package from Hackage."
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(define haskell-url?
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(let ((hackage-rx (make-regexp "https?://hackage.haskell.org")))
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(lambda (url)
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(regexp-exec hackage-rx url))))
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(let ((source-url (and=> (package-source package) origin-uri))
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(fetch-method (and=> (package-source package) origin-method)))
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(and (eq? fetch-method url-fetch)
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(match source-url
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((? string?)
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(haskell-url? source-url))
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((source-url ...)
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(any haskell-url? source-url))))))
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(define (latest-release package)
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"Return an <upstream-source> for the latest release of PACKAGE."
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(let* ((hackage-name (guix-package->hackage-name package))
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(cabal-meta (hackage-fetch hackage-name)))
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(match cabal-meta
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(#f
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(format (current-error-port)
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"warning: failed to parse ~a~%"
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(hackage-cabal-url hackage-name))
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#f)
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((_ *** ("version" (version)))
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(let ((url (hackage-source-url hackage-name version)))
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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 url))))))))
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(define %hackage-updater
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(upstream-updater
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(name 'hackage)
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(description "Updater for Hackage packages")
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(pred hackage-package?)
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(latest latest-release)))
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;;; cabal.scm ends here
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