df8b3821a8
Fixes the "haskell-stackage" test in 'tests/lint.scm', which started
failing with e6223017d9 because the extra
HTTP GETs induced by the 'haskell-fetch' calls would fail.
* guix/import/stackage.scm (latest-lts-release): Call 'hackage-fetch'
and its continuation from within 'inputs', which is delayed. Pass it
NAME-VERSION instead of HACKAGE-NAME-VERSION.
189 lines
7.1 KiB
Scheme
189 lines
7.1 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2017 Federico Beffa <beffa@fbengineering.ch>
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;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
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;;; Copyright © 2020 Martin Becze <mjbecze@riseup.net>
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;;; Copyright © 2021 Xinglu Chem <public@yoctocell.xyz>
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;;; Copyright © 2021, 2023, 2023 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2022 Hartmut Goebel <h.goebel@crazy-compilers.com>
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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 stackage)
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#:use-module (ice-9 match)
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#:use-module (json)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-34)
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#:use-module (srfi srfi-35)
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#:use-module (guix import json)
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#:use-module (guix import hackage)
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#:autoload (guix import cabal) (eval-cabal)
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#:use-module (guix import utils)
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#:use-module (guix memoization)
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#:use-module (guix packages)
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#:use-module (guix upstream)
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#:use-module (guix diagnostics)
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#:use-module (guix i18n)
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#:export (%stackage-url
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stackage->guix-package
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stackage-recursive-import
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%stackage-updater))
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;;;
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;;; Stackage info fetcher and access functions
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;;;
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(define %stackage-url
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(make-parameter "https://www.stackage.org"))
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;; Latest LTS version compatible with current GHC.
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(define %default-lts-version "20.5")
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(define-json-mapping <stackage-lts> make-stackage-lts
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stackage-lts?
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json->stackage-lts
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(snapshot stackage-lts-snapshot "snapshot" json->snapshot)
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(packages stackage-lts-packages "packages"
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(lambda (vector)
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(map json->stackage-package (vector->list vector)))))
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(define-json-mapping <snapshot> make-snapshot
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stackage-snapshot?
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json->snapshot
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(name snapshot-name)
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(ghc-version snapshot-ghc-version)
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(compiler snapshot-compiler))
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(define-json-mapping <stackage-package> make-stackage-package
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stackage-package?
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json->stackage-package
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(origin stackage-package-origin)
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(name stackage-package-name)
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(version stackage-package-version)
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(synopsis stackage-package-synopsis))
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(define stackage-lts-info-fetch
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;; "Retrieve the information about the LTS Stackage release VERSION."
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(memoize
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(lambda* (#:optional (version ""))
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(let* ((url (string-append (%stackage-url)
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"/lts-" (if (string-null? version)
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%default-lts-version
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version)))
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(lts-info (and=> (json-fetch url) json->stackage-lts)))
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(or lts-info
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(raise (formatted-message (G_ "LTS release version not found: ~a")
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version)))))))
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(define (lts-package-version packages name)
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"Return the version of the package with upstream NAME included in PACKAGES."
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(let ((pkg (find (lambda (pkg) (string=? (stackage-package-name pkg) name))
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packages)))
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(stackage-package-version pkg)))
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;;;
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;;; Importer entry point
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;;;
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(define (hackage-name-version name version)
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(and version (string-append name "@" version)))
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(define stackage->guix-package
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(memoize
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(lambda* (package-name ; upstream name
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#:key
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(include-test-dependencies? #t)
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(lts-version %default-lts-version)
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(packages
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(stackage-lts-packages
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(stackage-lts-info-fetch lts-version)))
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#:allow-other-keys)
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"Fetch Cabal file for PACKAGE-NAME from hackage.haskell.org. The retrieved
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version corresponds to the version of PACKAGE-NAME specified in the LTS-VERSION
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release at stackage.org. Return the `package' S-expression corresponding to
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that package, or #f on failure. PACKAGES-INFO is the alist with the packages
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included in the Stackage LTS release."
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(let* ((version (lts-package-version packages package-name))
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(name-version (hackage-name-version package-name version)))
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(if name-version
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(hackage->guix-package name-version
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#:include-test-dependencies?
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include-test-dependencies?)
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(raise (formatted-message (G_ "~a: Stackage package not found")
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package-name)))))))
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(define (stackage-recursive-import package-name . args)
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(recursive-import package-name
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#:repo->guix-package (lambda* (name #:key version #:allow-other-keys)
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(apply stackage->guix-package (cons name args)))
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#:guix-name hackage-name->package-name))
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;;;
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;;; Updater
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;;;
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(define latest-lts-release
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(let ((packages
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(mlambda ()
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(stackage-lts-packages
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(stackage-lts-info-fetch %default-lts-version)))))
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(lambda* (pkg #:key (version #f))
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"Return an <upstream-source> for the latest Stackage LTS release of
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PACKAGE or #f if the package is not included in the Stackage LTS release."
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(when version
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(raise
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(formatted-message
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(G_ "~a updater doesn't support updating to a specific version, sorry.")
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"stackage")))
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(let* ((hackage-name (package-upstream-name* pkg))
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(version (lts-package-version (packages) hackage-name))
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(name-version (hackage-name-version hackage-name version)))
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(match (and=> name-version hackage-fetch)
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(#f
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(warning (G_ "failed to parse ~a~%")
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(hackage-cabal-url hackage-name))
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#f)
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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 pkg))
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(version version)
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(urls (list url))
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(inputs
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(let ((cabal (eval-cabal (hackage-fetch name-version) '())))
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(cabal-package-inputs cabal)))))))))))
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(define (stackage-lts-package? package)
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"Return whether PACKAGE is available on the default Stackage LTS release."
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(and (hackage-package? package)
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(false-if-networking-error
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(let ((packages (stackage-lts-packages
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(stackage-lts-info-fetch %default-lts-version)))
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(hackage-name (package-upstream-name* package)))
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(find (lambda (package)
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(string=? (stackage-package-name package) hackage-name))
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packages)))))
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(define %stackage-updater
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(upstream-updater
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(name 'stackage)
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(description "Updater for Stackage LTS packages")
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(pred stackage-lts-package?)
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(import latest-lts-release)))
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;;; stackage.scm ends here
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