102 lines
3.7 KiB
Scheme
102 lines
3.7 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix git-download)
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#:use-module (guix gexp)
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#:use-module (guix store)
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#:use-module (guix monads)
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#:use-module (guix records)
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#:use-module (guix packages)
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#:autoload (guix build-system gnu) (standard-packages)
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#:use-module (ice-9 match)
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#:export (git-reference
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git-reference?
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git-reference-url
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git-reference-commit
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git-reference-recursive?
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git-fetch))
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;;; Commentary:
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;;;
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;;; An <origin> method that fetches a specific commit from a Git repository.
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;;; The repository URL and commit hash are specified with a <git-reference>
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;;; object.
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;;;
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;;; Code:
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(define-record-type* <git-reference>
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git-reference make-git-reference
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git-reference?
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(url git-reference-url)
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(commit git-reference-commit)
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(recursive? git-reference-recursive? ; whether to recurse into sub-modules
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(default #f)))
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(define (git-package)
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"Return the default Git package."
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(let ((distro (resolve-interface '(gnu packages version-control))))
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(module-ref distro 'git)))
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(define* (git-fetch ref hash-algo hash
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#:optional name
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#:key (system (%current-system)) (guile (default-guile))
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(git (git-package)))
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"Return a fixed-output derivation that fetches REF, a <git-reference>
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object. The output is expected to have recursive hash HASH of type
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HASH-ALGO (a symbol). Use NAME as the file name, or a generic name if #f."
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(define inputs
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;; When doing 'git clone --recursive', we need sed, grep, etc. to be
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;; available so that 'git submodule' works.
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(if (git-reference-recursive? ref)
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(standard-packages)
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'()))
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(define build
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#~(begin
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(use-modules (guix build git)
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(guix build utils)
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(ice-9 match))
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;; The 'git submodule' commands expects Coreutils, sed,
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;; grep, etc. to be in $PATH.
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(set-path-environment-variable "PATH" '("bin")
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(match '#+inputs
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(((names dirs) ...)
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dirs)))
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(git-fetch '#$(git-reference-url ref)
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'#$(git-reference-commit ref)
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#$output
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#:recursive? '#$(git-reference-recursive? ref)
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#:git-command (string-append #+git "/bin/git"))))
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(mlet %store-monad ((guile (package->derivation guile system)))
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(gexp->derivation (or name "git-checkout") build
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#:system system
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#:local-build? #t ;don't offload repo cloning
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#:hash-algo hash-algo
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#:hash hash
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#:recursive? #t
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#:modules '((guix build git)
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(guix build utils))
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#:guile-for-build guile
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#:local-build? #t)))
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;;; git-download.scm ends here
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