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Add (guix git-download). 

* guix/git-download.scm, guix/build/git.scm: New files.
* Makefile.am (MODULES): Add them.
* guix/packages.scm (<origin>): Fix comment for 'method' field.
This commit is contained in:
Ludovic Courtès 2014-02-21 23:41:11 +01:00
parent 0dbd88db39
commit 9b5b5c1740
4 changed files with 138 additions and 2 deletions
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2
Makefile.am
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@ -34,6 +34,7 @@ MODULES = \
guix/pki.scm \
guix/utils.scm \
guix/download.scm \
guix/git-download.scm \
guix/monads.scm \
guix/profiles.scm \
guix/serialization.scm \
@ -54,6 +55,7 @@ MODULES = \
guix/ui.scm \
guix/build/download.scm \
guix/build/cmake-build-system.scm \
guix/build/git.scm \
guix/build/gnome.scm \
guix/build/gnu-build-system.scm \
guix/build/gnu-dist.scm \

45
guix/build/git.scm Normal file
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@ -0,0 +1,45 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 build git)
#:use-module (guix build utils)
#:export (git-fetch))
;;; Commentary:
;;;
;;; This is the build-side support code of (guix git-download). It allows a
;;; Git repository to be cloned and checked out at a specific commit.
;;;
;;; Code:
(define* (git-fetch url commit directory
#:key (git-command "git"))
"Fetch COMMIT from URL into DIRECTORY. COMMIT must be a valid Git commit
identifier. Return #t on success, #f otherwise."
(and (zero? (system* git-command "clone" url directory))
(with-directory-excursion directory
(system* git-command "tag" "-l")
(and (zero? (system* git-command "checkout" commit))
(begin
;; The contents of '.git' vary as a function of the current
;; status of the Git repo. Since we want a fixed output, this
;; directory needs to be taken out.
(delete-file-recursively ".git")
#t)))))
;;; git.scm ends here

89
guix/git-download.scm Normal file
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@ -0,0 +1,89 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 git-download)
#:use-module (guix records)
#:use-module (guix derivations)
#:use-module (guix packages)
#:use-module (ice-9 match)
#:export (git-reference
git-reference?
git-reference-url
git-reference-commit
git-fetch))
;;; Commentary:
;;;
;;; An <origin> method that fetches a specific commit from a Git repository.
;;; The repository URL and commit hash are specified with a <git-reference>
;;; object.
;;;
;;; Code:
(define-record-type* <git-reference>
git-reference make-git-reference
git-reference?
(url git-reference-url)
(commit git-reference-commit))
(define* (git-fetch store ref hash-algo hash
#:optional name
#:key (system (%current-system)) guile git)
"Return a fixed-output derivation in STORE that fetches REF, a
<git-reference> object. The output is expected to have recursive hash HASH of
type HASH-ALGO (a symbol). Use NAME as the file name, or a generic name if
#f."
(define guile-for-build
(match guile
((? package?)
(package-derivation store guile system))
(#f ; the default
(let* ((distro (resolve-interface '(gnu packages base)))
(guile (module-ref distro 'guile-final)))
(package-derivation store guile system)))))
(define git-for-build
(match git
((? package?)
(package-derivation store git system))
(#f ; the default
(let* ((distro (resolve-interface '(gnu packages version-control)))
(git (module-ref distro 'git)))
(package-derivation store git system)))))
(let* ((command (string-append (derivation->output-path git-for-build)
"/bin/git"))
(builder `(begin
(use-modules (guix build git))
(git-fetch ',(git-reference-url ref)
',(git-reference-commit ref)
%output
#:git-command ',command))))
(build-expression->derivation store (or name "git-checkout") builder
#:system system
#:local-build? #t
#:inputs `(("git" ,git-for-build))
#:hash-algo hash-algo
#:hash hash
#:recursive? #t
#:modules '((guix build git)
(guix build utils))
#:guile-for-build guile-for-build)))
;;; git-download.scm ends here

4
guix/packages.scm
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@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -106,7 +106,7 @@
origin make-origin
origin?
(uri origin-uri) ; string
(method origin-method) ; symbol
(method origin-method) ; procedure
(sha256 origin-sha256) ; bytevector
(file-name origin-file-name (default #f)) ; optional file name
(patches origin-patches (default '())) ; list of file names