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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2022 Maxime Devos <maximedevos@telenet.be>
;;;
;;; 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 latest-git)
#:use-module (guix packages)
#:use-module (guix upstream)
#:use-module (guix ui)
#:use-module (guix git)
#:use-module (guix git-download)
#:use-module (ice-9 match)
#:use-module (srfi srfi-26)
#:export (%latest-git-updater))
(define (check-valid-with-latest-git-commit? package value)
"Verify that VALUE is a valid value for the 'with-latest-git-commit'
package property of PACKAGE. If so, return #true. Otherwise, emit a
warning and return #false. It is assumed VALUE is not false."
(or (string? value)
(eq? #true value)
(begin
(warning (or (package-field-location package 'properties)
(package-location package))
(G_ "Package ~a has an invalid 'with-latest-git-commit' \
property.~%")
(package-name package))
#false)))
(define (with-latest-git-commit? package)
"Return true if PACKAGE is hosted on a Git repository and it is requested
that the latest Git commit is used even when not formally released."
(match (package-source package)
((? origin? origin)
(and (decompose-git-version (package-version package))
(eq? (origin-method origin) git-fetch)
(git-reference? (origin-uri origin))
(and=> (assq-ref (package-properties package)
'with-latest-git-commit)
(cut check-valid-with-latest-git-commit? package <>))))
(_ #f)))
(define (latest-commit-reference-name package)
"Return the name of the reference that is expected to hold the latest Git
commit to use as source code."
(match (assq-ref (package-properties package) 'with-latest-git-commit)
('#true "HEAD")
((? string? reference) reference)))
(define (latest-git-upstream package)
"Return an <upstream-source> for the latest git commit of PACKAGE.
If the reference pointing to the latest git commit has been deleted,
return #false instead."
(let* ((name (package-name package))
(old-version (package-version package))
(old-reference (origin-uri (package-source package)))
(reference-name (latest-commit-reference-name package))
(commit (lookup-reference (git-reference-url old-reference)
reference-name)))
(if commit
(upstream-source
(package name)
(version
;; See 'oid->commit' in (guix git) for why not string=?.
;; Don't increment the revision if the commit remains the same.
(if (string-prefix? commit (git-reference-commit old-reference))
old-version
(increment-git-version old-version commit)))
(urls (git-reference
(inherit old-reference)
(commit commit))))
(begin
(warning (package-location package)
(G_ "Cannot update ~a because the reference ~a of ~a has \
disappeared.~%")
(package-name package)
reference-name
(let ((maybe-hyperlink
(if (supports-hyperlinks? (guix-warning-port))
hyperlink
(lambda (x y) x)))
(url (git-reference-url old-reference)))
(maybe-hyperlink url url)))
#false))))
(define %latest-git-updater
(upstream-updater
(name 'latest-git)
(description "Updater for packages using latest Git commit")
(pred with-latest-git-commit?)
(latest latest-git-upstream)))
|