197 lines
8.5 KiB
Scheme
197 lines
8.5 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
|
;;; Copyright © 2016 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/>.
|
|
|
|
(define-module (guix import github)
|
|
#:use-module (ice-9 match)
|
|
#:use-module (srfi srfi-1)
|
|
#:use-module (json)
|
|
#:use-module (guix utils)
|
|
#:use-module ((guix download) #:prefix download:)
|
|
#:use-module (guix import utils)
|
|
#:use-module (guix packages)
|
|
#:use-module (guix upstream)
|
|
#:use-module (web uri)
|
|
#:export (%github-updater))
|
|
|
|
(define (json-fetch* url)
|
|
"Return a list/hash representation of the JSON resource URL, or #f on
|
|
failure."
|
|
(call-with-output-file "/dev/null"
|
|
(lambda (null)
|
|
(with-error-to-port null
|
|
(lambda ()
|
|
(call-with-temporary-output-file
|
|
(lambda (temp port)
|
|
(and (url-fetch url temp)
|
|
(call-with-input-file temp json->scm)))))))))
|
|
|
|
(define (find-extension url)
|
|
"Return the extension of the archive e.g. '.tar.gz' given a URL, or
|
|
false if none is recognized"
|
|
(find (lambda (x) (string-suffix? x url))
|
|
(list ".tar.gz" ".tar.bz2" ".tar.xz" ".zip" ".tar" ".tgz")))
|
|
|
|
(define (updated-github-url old-package new-version)
|
|
;; Return a url for the OLD-PACKAGE with NEW-VERSION. If no source url in
|
|
;; the OLD-PACKAGE is a GitHub url, then return false.
|
|
|
|
(define (updated-url url)
|
|
(if (string-prefix? "https://github.com/" url)
|
|
(let ((ext (find-extension url))
|
|
(name (package-name old-package))
|
|
(version (package-version old-package))
|
|
(prefix (string-append "https://github.com/"
|
|
(github-user-slash-repository url)))
|
|
(repo (github-repository url)))
|
|
(cond
|
|
((string-suffix? (string-append "/tarball/v" version) url)
|
|
(string-append prefix "/tarball/v" new-version))
|
|
((string-suffix? (string-append "/tarball/" version) url)
|
|
(string-append prefix "/tarball/" new-version))
|
|
((string-suffix? (string-append "/archive/v" version ext) url)
|
|
(string-append prefix "/archive/v" new-version ext))
|
|
((string-suffix? (string-append "/archive/" version ext) url)
|
|
(string-append prefix "/archive/" new-version ext))
|
|
((string-suffix? (string-append "/archive/" name "-" version ext)
|
|
url)
|
|
(string-append prefix "/archive/" name "-" new-version ext))
|
|
((string-suffix? (string-append "/releases/download/v" version "/"
|
|
name "-" version ext)
|
|
url)
|
|
(string-append prefix "/releases/download/v" new-version "/" name
|
|
"-" new-version ext))
|
|
((string-suffix? (string-append "/releases/download/" version "/"
|
|
name "-" version ext)
|
|
url)
|
|
(string-append prefix "/releases/download/" new-version "/" name
|
|
"-" new-version ext))
|
|
((string-suffix? (string-append "/releases/download/" version "/"
|
|
repo "-" version ext)
|
|
url)
|
|
(string-append prefix "/releases/download/" new-version "/" repo
|
|
"-" new-version ext))
|
|
((string-suffix? (string-append "/releases/download/" repo "-"
|
|
version "/" repo "-" version ext)
|
|
url)
|
|
(string-append "/releases/download/" repo "-" version "/" repo "-"
|
|
version ext))
|
|
(#t #f))) ; Some URLs are not recognised.
|
|
#f))
|
|
|
|
(let ((source-url (and=> (package-source old-package) origin-uri))
|
|
(fetch-method (and=> (package-source old-package) origin-method)))
|
|
(if (eq? fetch-method download:url-fetch)
|
|
(match source-url
|
|
((? string?)
|
|
(updated-url source-url))
|
|
((source-url ...)
|
|
(find updated-url source-url)))
|
|
#f)))
|
|
|
|
(define (github-package? package)
|
|
"Return true if PACKAGE is a package from GitHub, else false."
|
|
(not (eq? #f (updated-github-url package "dummy"))))
|
|
|
|
(define (github-repository url)
|
|
"Return a string e.g. bedtools2 of the name of the repository, from a string
|
|
URL of the form 'https://github.com/arq5x/bedtools2/archive/v2.24.0.tar.gz'"
|
|
(match (string-split (uri-path (string->uri url)) #\/)
|
|
((_ owner project . rest)
|
|
(string-append project))))
|
|
|
|
(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'"
|
|
(match (string-split (uri-path (string->uri url)) #\/)
|
|
((_ owner project . rest)
|
|
(string-append owner "/" project))))
|
|
|
|
(define %github-token
|
|
;; Token to be passed to Github.com to avoid the 60-request per hour
|
|
;; limit, or #f.
|
|
(make-parameter (getenv "GUIX_GITHUB_TOKEN")))
|
|
|
|
(define (latest-released-version url package-name)
|
|
"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' and the name of
|
|
the package e.g. 'bedtools2'. Return #f if there is no releases"
|
|
(let* ((token (%github-token))
|
|
(api-url (string-append
|
|
"https://api.github.com/repos/"
|
|
(github-user-slash-repository url)
|
|
"/releases"))
|
|
(json (json-fetch*
|
|
(if token
|
|
(string-append api-url "?access_token=" token)
|
|
api-url))))
|
|
(if (eq? json #f)
|
|
(if token
|
|
(error "Error downloading release information through the GitHub
|
|
API when using a GitHub token")
|
|
(error "Error downloading release information through the GitHub
|
|
API. This may be fixed by using an access token and setting the environment
|
|
variable GUIX_GITHUB_TOKEN, for instance one procured from
|
|
https://github.com/settings/tokens"))
|
|
(let ((proper-releases
|
|
(filter
|
|
(lambda (x)
|
|
;; example pre-release:
|
|
;; https://github.com/wwood/OrfM/releases/tag/v0.5.1
|
|
;; or an all-prerelease set
|
|
;; https://github.com/powertab/powertabeditor/releases
|
|
(not (hash-ref x "prerelease")))
|
|
json)))
|
|
(match proper-releases
|
|
(() ;empty release list
|
|
#f)
|
|
((release . rest) ;one or more releases
|
|
(let ((tag (hash-ref release "tag_name"))
|
|
(name-length (string-length package-name)))
|
|
;; some tags include the name of the package e.g. "fdupes-1.51"
|
|
;; so remove these
|
|
(if (and (< name-length (string-length tag))
|
|
(string=? (string-append package-name "-")
|
|
(substring tag 0 (+ name-length 1))))
|
|
(substring tag (+ name-length 1))
|
|
;; some tags start with a "v" e.g. "v0.25.0"
|
|
;; where some are just the version number
|
|
(if (eq? (string-ref tag 0) #\v)
|
|
(substring tag 1) tag)))))))))
|
|
|
|
(define (latest-release pkg)
|
|
"Return an <upstream-source> for the latest release of PKG."
|
|
(let* ((source-uri (origin-uri (package-source pkg)))
|
|
(name (package-name pkg))
|
|
(newest-version (latest-released-version source-uri name)))
|
|
(if newest-version
|
|
(upstream-source
|
|
(package name)
|
|
(version newest-version)
|
|
(urls (list (updated-github-url pkg newest-version))))
|
|
#f))) ; On GitHub but no proper releases
|
|
|
|
(define %github-updater
|
|
(upstream-updater
|
|
(name 'github)
|
|
(description "Updater for GitHub packages")
|
|
(pred github-package?)
|
|
(latest latest-release)))
|
|
|
|
|