guix-devel/guix/svn-download.scm

162 lines
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Scheme

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2015, 2016, 2019 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2014 Sree Harsha Totakura <sreeharsha@totakura.in>
;;; Copyright © 2017, 2019 Ricardo Wurmus <rekado@elephly.net>
;;;
;;; 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 svn-download)
#:use-module (guix records)
#:use-module (guix gexp)
#:use-module (guix store)
#:use-module (guix monads)
#:use-module (guix packages)
#:use-module (guix utils)
#:use-module ((guix build svn) #:prefix build:)
#:use-module (ice-9 match)
#:export (svn-reference
svn-reference?
svn-reference-url
svn-reference-revision
svn-fetch
download-svn-to-store
svn-multi-reference
svn-multi-reference?
svn-multi-reference-url
svn-multi-reference-revision
svn-multi-reference-locations
svn-multi-fetch))
;;; Commentary:
;;;
;;; An <origin> method that fetches a specific revision from a Subversion
;;; repository. The repository URL and REVISION are specified with a
;;; <svn-reference> object. REVISION should be specified as a number.
;;;
;;; Code:
(define-record-type* <svn-reference>
svn-reference make-svn-reference
svn-reference?
(url svn-reference-url) ; string
(revision svn-reference-revision) ; number
(user-name svn-reference-user-name (default #f))
(password svn-reference-password (default #f)))
(define (subversion-package)
"Return the default Subversion package."
(let ((distro (resolve-interface '(gnu packages version-control))))
(module-ref distro 'subversion)))
(define* (svn-fetch ref hash-algo hash
#:optional name
#:key (system (%current-system)) (guile (default-guile))
(svn (subversion-package)))
"Return a fixed-output derivation that fetches REF, a <svn-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 build
(with-imported-modules '((guix build svn)
(guix build utils))
#~(begin
(use-modules (guix build svn))
(svn-fetch '#$(svn-reference-url ref)
'#$(svn-reference-revision ref)
#$output
#:svn-command (string-append #+svn "/bin/svn")
#:user-name #$(svn-reference-user-name ref)
#:password #$(svn-reference-password ref)))))
(mlet %store-monad ((guile (package->derivation guile system)))
(gexp->derivation (or name "svn-checkout") build
#:system system
#:hash-algo hash-algo
#:hash hash
#:recursive? #t
#:guile-for-build guile
#:local-build? #t)))
(define-record-type* <svn-multi-reference>
svn-multi-reference make-svn-multi-reference
svn-multi-reference?
(url svn-multi-reference-url) ; string
(revision svn-multi-reference-revision) ; number
(locations svn-multi-reference-locations) ; list of strings
(user-name svn-multi-reference-user-name (default #f))
(password svn-multi-reference-password (default #f)))
(define* (svn-multi-fetch ref hash-algo hash
#:optional name
#:key (system (%current-system)) (guile (default-guile))
(svn (subversion-package)))
"Return a fixed-output derivation that fetches REF, a <svn-multi-reference>
object. The output is expected to have recursive hash HASH of type
HASH-ALGO (a symbol). Use NAME as the file name, or a generic name if #f."
(define build
(with-imported-modules '((guix build svn)
(guix build utils))
#~(begin
(use-modules (guix build svn)
(guix build utils)
(srfi srfi-1))
(every (lambda (location)
;; The directory must exist if we are to fetch only a
;; single file.
(unless (string-suffix? "/" location)
(mkdir-p (string-append #$output "/" (dirname location))))
(svn-fetch (string-append '#$(svn-multi-reference-url ref)
"/" location)
'#$(svn-multi-reference-revision ref)
(if (string-suffix? "/" location)
(string-append #$output "/" location)
(string-append #$output "/" (dirname location)))
#:svn-command (string-append #+svn "/bin/svn")
#:user-name #$(svn-multi-reference-user-name ref)
#:password #$(svn-multi-reference-password ref)))
'#$(svn-multi-reference-locations ref)))))
(mlet %store-monad ((guile (package->derivation guile system)))
(gexp->derivation (or name "svn-checkout") build
#:leaked-env-vars '("http_proxy" "https_proxy"
"LC_ALL" "LC_MESSAGES" "LANG"
"COLUMNS")
#:system system
#:hash-algo hash-algo
#:hash hash
#:recursive? #t
#:guile-for-build guile
#:local-build? #t)))
(define* (download-svn-to-store store ref
#:optional (name (basename (svn-reference-url ref)))
#:key (log (current-error-port)))
"Download from REF, a <svn-reference> object to STORE. Write progress
reports to LOG."
(call-with-temporary-directory
(lambda (temp)
(let ((result
(parameterize ((current-output-port log))
(build:svn-fetch (svn-reference-url ref)
(svn-reference-revision ref)
temp
#:user-name (svn-reference-user-name ref)
#:password (svn-reference-password ref)))))
(and result
(add-to-store store name #t "sha256" temp))))))
;;; svn-download.scm ends here