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;;; Guile-Git --- GNU Guile bindings of libgit2
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2018 Jelle Licht <jlicht@fsfe.org>
;;; Copyright © 2021, 2024 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2022 Maxime Devos <maximedevos@telenet.be>
;;;
;;; This file is part of Guile-Git.
;;;
;;; Guile-Git 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.
;;;
;;; Guile-Git 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 Guile-Git. If not, see <http://www.gnu.org/licenses/>.
(define-module (git remote)
#:use-module (srfi srfi-9 gnu)
#:use-module (system foreign)
#:use-module (git bindings)
#:use-module (git fetch)
#:use-module (git structs)
#:use-module (git types)
#:export (remote-name
remote-url
remote-set-url!
remote-lookup
remote-fetch
remote-create-anonymous
remote-create-detached
remote-connected?
remote-connect
remote-connect/detached
remote-disconnect
remote-ls
remote-default-branch))
(define %remote-free (libgit2->pointer "git_remote_free"))
(define (pointer->remote! pointer)
(set-pointer-finalizer! pointer %remote-free)
(pointer->remote pointer))
(define remote-name
(let ((proc (libgit2->procedure '* "git_remote_name" '(*))))
(lambda (remote)
(pointer->string (proc (remote->pointer remote))))))
(define remote-url
(let ((proc (libgit2->procedure '* "git_remote_url" '(*))))
(lambda (remote)
"Return the URL of REMOTE, a \"remote\" as returned by
'remote-lookup'."
(pointer->string (proc (remote->pointer remote))))))
(define remote-set-url!
(let ((proc (libgit2->procedure* "git_remote_set_url" '(* * *))))
(lambda (repository remote url)
"Change the URL of REMOTE, a string, to URL."
(proc (repository->pointer repository) (string->pointer remote)
(string->pointer url)))))
(define remote-lookup
(let ((proc (libgit2->procedure* "git_remote_lookup" '(* * *))))
(lambda* (repository remote-name)
(let ((out (make-double-pointer)))
(proc out
(repository->pointer repository)
(string->pointer remote-name))
(pointer->remote! (dereference-pointer out))))))
(define remote-create-anonymous
(let ((proc (libgit2->procedure* "git_remote_create_anonymous" '(* * *))))
(lambda* (repository url)
(let ((out (make-double-pointer)))
(proc out
(repository->pointer repository)
(string->pointer url))
(pointer->remote! (dereference-pointer out))))))
(define remote-create-detached
(let ((proc (libgit2->procedure* "git_remote_create_detached" '(* *))))
(lambda* (url)
"Return an in-memory remote for URL without a connected local repository."
(let ((out (make-double-pointer)))
(proc out
(string->pointer url))
(pointer->remote! (dereference-pointer out))))))
(define remote-connected?
(let ((proc (libgit2->procedure int "git_remote_connected" '(*))))
(lambda* (remote)
(case (proc (remote->pointer remote))
((1) #t)
(else #f)))))
(define GIT_DIRECTION_FETCH 0)
(define remote-connect
;; TODO: calling this on detached remotes causes segfaults,
;; hence the remote-connect/detached work-around
(let ((proc (libgit2->procedure* "git_remote_connect" `(* ,int * * * )))) ;; XXX: actual types
(lambda* (remote)
(let ((remote-callbacks (make-remote-callbacks)))
(set-remote-callbacks-version! remote-callbacks 1)
(proc (remote->pointer remote)
GIT_DIRECTION_FETCH
(remote-callbacks->pointer remote-callbacks)
%null-pointer
%null-pointer)))))
(define remote-connect/detached
(let ((proc (libgit2->procedure* "git_remote_connect" `(* ,int * * * )))) ;; XXX: actual types
(lambda* (remote)
"Connect the detached remote."
(proc (remote->pointer remote)
GIT_DIRECTION_FETCH
%null-pointer
%null-pointer
%null-pointer))))
(define remote-disconnect
(let ((proc (libgit2->procedure void "git_remote_disconnect" '(*))))
(lambda (remote)
(proc (remote->pointer remote)))))
(define remote-ls
(let ((proc (libgit2->procedure* "git_remote_ls" '(* * *))))
(lambda* (remote)
(let ((out (make-double-pointer))
(size-ptr (make-size_t-pointer)))
(proc out size-ptr
(remote->pointer remote))
(pointer->remote-head-list (dereference-pointer out)
(pointer->size_t size-ptr))))))
(define remote-fetch
(let ((proc (libgit2->procedure* "git_remote_fetch" '(* * * *))))
(lambda* (remote #:key
(reflog-message "")
(fetch-options (make-fetch-options)))
(proc (remote->pointer remote)
;; FIXME https://libgit2.github.com/libgit2/#HEAD/type/git_strarray
%null-pointer
(fetch-options->pointer fetch-options)
(string->pointer reflog-message)))))
(define remote-default-branch
(let ((proc (libgit2->procedure* "git_remote_default_branch" '(* *))))
(lambda (remote)
"Return the name of REMOTE's default branch.
The default branch of a repository is the branch which HEAD points to. If
the remote does not support reporting this information directly, it performs
the guess as git does; that is, if there are multiple branches which point to
the same commit, the first one is chosen. If the master branch is a
candidate, it wins.
This procedure must be called after connecting REMOTE."
(let ((buffer (make-buffer)))
(proc buffer (remote->pointer remote))
(buffer-content/string buffer)))))
;; FIXME https://libgit2.github.com/libgit2/#HEAD/group/reset/git_reset_default
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