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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
(srfi srfi-1) ;; fold
(ice-9 rdelim) ;; read-string
(guix import github) ;; latest-release
(guix utils) ;; string-replace-substring
(guix memoization) ;; memoize network operations
(guix download) ;; download-to-store
((guix import utils) #:prefix utils:) ;; hash
(guix packages) ;; packages
(guix build-system) ;; build-system printer
(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
(ice-9 popen) ;; open-input-ouput-pipe
(web uri) ;; uri->string
(srfi srfi-26) ;; cut
)
(define-public go-name* "github.com/gohugoio/hugo") ;; for tests
(define* (go-name->url go-name #:rest args)
(if (string-contains go-name ".")
(uri->string (string->uri (apply string-append
"https://" go-name args)))
#f))
(define (go-name->tarball go-name version)
(go-name->url go-name "/archive/v"
version ".tar.gz"))
(define* (string-replace-substrings string substrings
#:optional (replacement "-"))
(if (null-list? substrings)
string
((cut string-replace-substring <> (car substrings) replacement)
(string-replace-substrings string (cdr substrings)))))
;;; Possible remove @@ if upstream exports the symbols
(define (go-name->guix-name go-name)
(string-append "go-"
(string-replace-substrings go-name '("." "/") "-")))
;;; Slow; accesses the network; memoized
(define latest-release
(memoize
(lambda (go-name)
((@@ (guix import github) latest-released-version)
(go-name->url go-name)
(go-name->guix-name go-name)))))
;;; Slow; downloads the url from network; memoized
(define url->store
(@@ (guix import cran) download))
;;; Slow; download src tarball from network, returns base32 nix-hash;
;;; memoized
(define (go-name->sha256 go-name version)
(utils:guix-hash-url (url->store (go-name->tarball go-name version))))
;;; Slow; network access; memoized
(define go-name->readme-string
(memoize
(lambda (go-name)
(define (go-name->readme go-name)
(go-name->url "raw.githubusercontent.com"
;; TODO, detect the domain
(substring go-name
(string-length "github.com"))
"/master/"
"README.md"))
(call-with-input-file (url->store (go-name->readme go-name))
read-string))))
;;; Maybe try to match the first sentence.
(define (go-name->synopsis go-name)
(substring (go-name->readme-string go-name) 0 100))
;;; Maybe try to match the the next two sentences.
(define (go-name->description go-name)
(substring (go-name->readme-string go-name) 100 300))
(go-name->description go-name*)
(define shell-command
(lambda* (command #:rest args)
(let* ((cmd (string-join (cons command (delete #f (delete '() args))) " "))
(port (open-input-output-pipe cmd))
(result (read-string port))
(exit-code (close-pipe port)))
(and (zero? exit-code)
(string-split (string-trim-right result) #\newline)))))
(define go-name->inputs
(lambda (go-name)
(let ((recursive-depends "-f '{{ join .Deps \"\\n\" }}'")
(direct-depends "-f '{{ join .Imports \"\\n\" }}'")
(go-command (car (shell-command "which go"))))
(shell-command go-command "list" direct-depends go-name))))
;;; License
(define (string->license license-string)
((@@ (guix import cran) string->license) (string-upcase license-string)))
;;; For inputs
(define format-inputs
(@@ (guix import cran) format-inputs))
(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))
(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: make inputs into (unquote ..) form
(inputs
(format-inputs (map go-name->guix-name (go-name->inputs go-name))))
(synopsis (go-name->synopsis go-name))
(description (go-name->description go-name))
;; TODO: license
)))
(define (filter-newlines string)
(string-filter (lambda (x) (not (equal? x #\newline))) string))
;;; Ask the upstream to export variable?
(define bv->nix-base32 (@@ (guix packages)
bytevector->nix-base32-string))
(define (origin-sexp origin)
`(origin
(method url-fetch)
(uri ,(origin-uri origin))
(sha256 (base32 ,(bv->nix-base32 (origin-sha256 origin))))
(file-name ,(origin-file-name origin))
(patches ,(origin-patches origin))
(snippet ,(origin-snippet origin))
(patch-flags ,(origin-patch-flags origin))
(patch-inputs ,(origin-patch-inputs origin))
(modules ,(origin-modules origin))
(patch-guile ,(origin-patch-guile origin))))
(define (build-system-sexp build-system)
(symbol-append (build-system-name build-system) '-build-system))
(define-public (package-sexp package)
`(package
(name ,(package-name package))
(version ,(package-version package))
(source ,(origin-sexp (package-source package)))
(home-page ,(package-home-page package))
(build-system ,(build-system-sexp (package-build-system package)))
(arguments ,(package-arguments package))
(synopsis ,(filter-newlines (package-synopsis package)))
(description ,(filter-newlines (package-description package)))
(inputs ,(alist-sexp (package-inputs package)))
(native-inputs ,(alist-sexp (package-native-inputs package)))
(propagated-inputs ,(alist-sexp (package-propagated-inputs package)))))
;;; 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 DONE
;;; 9.b. inputs alist TODO
;;; 10. package-sexp DONE
;;; 10.a origin-sexp DONE
;;; golang.scm ends here
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