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;;; Guile-Git --- GNU Guile bindings of libgit2
;;; Copyright © 2016 Amirouche Boubekki <amirouche@hypermove.net>
;;; Copyright © 2016, 2017 Erik Edrosa <erik.edrosa@gmail.com>
;;; Copyright © 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 object)
#:use-module (system foreign)
#:use-module (rnrs bytevectors)
#:use-module (git bindings)
#:use-module (git configuration)
#:use-module (git types)
#:use-module (git structs)
#:export (OBJ-ANY
OBJ-BAD
OBJ-EXT1
OBJ-COMMIT
OBJ-TREE
OBJ-BLOB
OBJ-TAG
OBJ-EXT2
OBJ-OFS-DELTA
OBJ-REF-DELTA
object-id
object-lookup
object-lookup-prefix
object-owner
object-short-id
object-type))
;; Git Object types
(define OBJ-ANY -2)
(define OBJ-BAD -1)
(define OBJ-EXT1 0)
(define OBJ-COMMIT 1)
(define OBJ-TREE 2)
(define OBJ-BLOB 3)
(define OBJ-TAG 4)
(define OBJ-EXT2 5)
(define OBJ-OFS-DELTA 6)
(define OBJ-REF-DELTA 7)
;; FIXME: https://libgit2.github.com/libgit2/#HEAD/group/object/git_object__size
(define object-dup
(let ((proc (libgit2->procedure* "git_object_dup" '(* *))))
(lambda (object)
(let ((out (make-double-pointer)))
(proc out (object->pointer object))
(pointer->object! (dereference-pointer out))))))
(define object-id
(let ((proc (libgit2->procedure '* "git_object_id" '(*))))
(lambda (object)
(pointer->oid (proc (object->pointer object))))))
(define object-lookup
(let ((proc (libgit2->procedure* "git_object_lookup" `(* * * ,int))))
(lambda* (repository oid #:optional (type OBJ-ANY))
(let ((out (bytevector->pointer (make-bytevector (sizeof '*)))))
(proc out (repository->pointer repository) (oid->pointer oid)
type)
(pointer->object! (dereference-pointer out))))))
(define object-lookup-prefix
(let ((proc (libgit2->procedure* "git_object_lookup_prefix"
`(* * * ,size_t ,int))))
(lambda* (repository oid length #:optional (type OBJ-ANY))
(let ((out (bytevector->pointer (make-bytevector (sizeof '*)))))
(proc out (repository->pointer repository) (oid->pointer oid)
length type)
(pointer->object! (dereference-pointer out))))))
;; FIXME https://libgit2.github.com/libgit2/#HEAD/group/object/git_object_lookup_bypath
(define object-owner
(let ((proc (libgit2->procedure '* "git_object_owner" '(*))))
(lambda (object)
(pointer->repository (proc (object->pointer object))))))
;; FIXME https://libgit2.github.com/libgit2/#HEAD/group/object/git_object_peel
(define object-short-id
(let ((proc (libgit2->procedure* "git_object_short_id" '(* *))))
(lambda (object)
(let ((out (make-buffer)))
(proc out (object->pointer object))
(let ((out* (buffer-content/string out)))
(free-buffer out)
out*)))))
;; FIXME: https://libgit2.github.com/libgit2/#HEAD/group/object/git_object_string2type
(define object-type
(let ((proc (libgit2->procedure int "git_object_type" '(*))))
(lambda (object)
(proc (object->pointer object)))))
;; FIXME: https://libgit2.github.com/libgit2/#HEAD/group/object/git_object_type2string
;; FIXME: https://libgit2.github.com/libgit2/#HEAD/group/object/git_object_typeisloose
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