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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019 by Amar Singh <nly@disroot.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; This program 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.
;;;
;;; This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
(define-module (guix import golang))
(use-modules
(guix import github) ;; latest-release
(guix download) ;; download-to-store
((guix import utils) #:prefix utils:) ;; hash
(guix packages) ;; packages
(guix build-system go) ;; go-build-system
(guix store) ;; with-store
(gnu packages golang) ;; inherit (simple) go package
(ice-9 textual-ports) ;; to parse readme.md
)
(define go-name* "github.com/gohugoio/hugo") ;; for tests
(define (go-name->url go-name)
(string-append "https://" go-name))
(define (go-name->tarball go-name version)
(string-append (go-name->url go-name) "/archive/v" version
".tar.gz"))
;;; Possible remove @@ if upstream exports the symbols
(define (go-name->name go-name)
((@@ (guix import github) github-repository)
(go-name->url go-name)))
;;; Slow; accesses the network
(define (latest-release go-name)
((@@ (guix import github) latest-released-version)
(go-name->url go-name)
(go-name->name go-name)))
;;; Slow; downloads the url from network;
(define (url->store url)
(with-store store
(download-to-store store
url)))
;;; Slow; download the source tarball from network and returns base32
;;; nix-hash
(define (go-name->sha256 go-name version)
(utils:guix-hash-url (url->store (go-name->tarball go-name version))))
;;; Towards go-name->synopsis,description
(define (go-name->readme go-name)
(string-append "https://raw.githubusercontent.com"
(substring go-name
(string-length "github.com"))
"/master/"
"README.md"))
;;; Slow; network access
(define (go-name->readme-string go-name)
"Slow; network access."
(call-with-input-file (url->store (go-name->readme go-name))
(lambda (port) (get-string-n port 4096))))
;;; Maybe try to match the first sentence.
(define (go-name->synopsis go-name readme-string)
(string-append (go-name->name go-name)
(substring readme-string 0 100)))
;;; Maybe try to match the the next two sentences.
(define (go-name->description go-name readme-string)
(string-append (go-name->name go-name)
(substring readme-string 100 300)))
;;; go list -f '{{ join .Deps "\n" }}',recursively find dependencies
;;; go list -f '{{ join .Imports "\n" }}' ,non recursive
(define (go-name->inputs go-name)
(let ((tmp (tmpnam)))
(and (zero? (system (string-append "go list -f '{{ join .Deps \"\\n\" }}'" " "
go-name " > " tmp)))
(call-with-input-file tmp get-string-all))))
(define-public (make-go-package go-name)
;; Do the expensive operations only once; query network for latest version
(let* ((version (latest-release go-name))
(sha256 (go-name->sha256 go-name version))
(readme-string (go-name->readme-string go-name)))
(package (inherit go-github-com-alsm-ioprogress)
(name (string-append "go-"
(go-name->name go-name)))
(version version)
(source (origin (method url-fetch)
(uri (go-name->tarball go-name
version))
(sha256 (base32 sha256))))
(home-page (go-name->url go-name))
(build-system go-build-system)
(arguments
`(#:import-path ,go-name))
;; TODO: inputs
(synopsis
(go-name->synopsis go-name
readme-string))
(description (go-name->description go-name
readme-string))
;; TODO: license
)))
;;; STATUS
;;; 1. latest-release DONE
;;; 1.b latest-commit PENDING/STALLED
;;; 2. go-name->name DONE
;;; 4. go-name->url DONE
;;; 4.b go-name->tarball DONE
;;; 5. go-name->sha256 (go-name version) DONE
;;; 6. go-name->synopsis DONE
;;; 7. go-name->description DONE
;;; 6-7.b try to extract sentences. TODO
;;; 8. go-name->license TODO
;;; 9. go-name->inputs TODO
;;; 10. package-print TODO
;;; golang.scm ends here
|