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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 Ben Woodcroft <donttrustben@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix 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.
;;;
;;; GNU Guix 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 GNU Guix. If not, see <http://www.gnu.org/licenses/>.
;; TODO: Are all of these imports used?
(define-module (guix import github)
#:use-module (ice-9 binary-ports)
#:use-module (ice-9 match)
#:use-module (ice-9 pretty-print)
#:use-module (ice-9 regex)
#:use-module ((ice-9 rdelim) #:select (read-line))
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (rnrs bytevectors)
#:use-module (json)
#:use-module (web uri)
#:use-module (guix ui)
#:use-module (guix utils)
#:use-module ((guix download) #:prefix download:)
#:use-module (guix import utils)
#:use-module (guix import json)
#:use-module (guix packages)
#:use-module (guix upstream)
#:use-module (gnu packages)
#:export (%github-updater))
(define (json-fetch* url)
"Return a list/hash representation of the JSON resource URL, or #f on
failure."
;; TODO: make silent
(call-with-temporary-output-file
(lambda (temp port)
(and (url-fetch url temp)
(call-with-input-file temp json->scm)))))
(define (github-package? package)
"Return true if PACKAGE is a package from GitHub."
;; TODO: currently requires the standard "v1.0" or "1.0" style tag names
;; TODO: currently only accepts .tar.gz downloads
;; TODO: should also accept alternative download URLs of style like
;; https://github.com/libical/libical/releases/download/v1.0.1/libical-1.0.1.tar.gz
(define (github-url? url)
(and
(string-prefix? "https://github.com/" url)
(or
(string-suffix?
(string-append "/archive/v" (package-version package) ".tar.gz") url)
(string-suffix?
(string-append "/archive/" (package-version package) ".tar.gz") url))))
(let ((source-url (and=> (package-source package) origin-uri))
(fetch-method (and=> (package-source package) origin-method)))
(display (list "testing" source-url))
(display "\n")
(and (eq? fetch-method download:url-fetch)
(match source-url
((? string?)
(github-url? source-url))
((source-url ...)
(any github-url? source-url))))))
(define (github-user-slash-repository url)
"Return a string e.g. arq5x/bedtools2 of the owner and the name of the
repository separated by a forward slash, from a string URL of the form
'https://github.com/arq5x/bedtools2/archive/v2.24.0.tar.gz'"
(let ((splits (string-split url #\/)))
(string-append (list-ref splits 3) "/" (list-ref splits 4))))
(define (latest-released-version url)
"Return a string of the newest released version name given a string URL like
'https://github.com/arq5x/bedtools2/archive/v2.24.0.tar.gz', or #f if there
is no releases"
;; TODO: don't return pre-release versions, can detect this from JSON field
;; 'prerelease'
(let ((json (json-fetch*
(string-append "https://api.github.com/repos/"
(github-user-slash-repository url)
"/releases"
;;"?access_token=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
))))
(if (eq? (length json) 0) #f
(let ((tag (assoc-ref (hash-table->alist (first json)) "tag_name")))
(if (eq? (string-ref tag 0) #\v)
(substring tag 1) tag)))))
(define (latest-release guix-package)
"Return an <upstream-source> for the latest release of GUIX-PACKAGE."
(let* ((pkg (specification->package guix-package))
(source-uri (origin-uri (package-source pkg)))
(version (latest-released-version source-uri)))
(if version
(upstream-source
(package guix-package)
(version version)
(urls (list source-uri)))
#f)))
(define %github-updater
(upstream-updater
(name 'github)
(description "Updater for GitHub packages")
(pred github-package?)
(latest latest-release)))
|