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svn-download: Rewrite using gexps.

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* guix/svn-download.scm (subversion-package): New procedure.
  (svn-fetch): Use it.  Remove 'svn-for-build'.  Use a gexp and
  'gexp->derivation'.
This commit is contained in:
Ludovic Courtès 2014-08-23 20:52:25 +02:00
parent 6119ebf194
commit bc67269487
1 changed files with 29 additions and 29 deletions
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58
guix/svn-download.scm
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@ -19,7 +19,8 @@
(define-module (guix svn-download)
#:use-module (guix records)
#:use-module (guix derivations)
#:use-module (guix gexp)
#:use-module (guix monads)
#:use-module (guix packages)
#:use-module (ice-9 match)
#:export (svn-reference
@ -42,9 +43,15 @@ (define-record-type* <svn-reference>
(url svn-reference-url) ; string
(revision svn-reference-revision)) ; number
(define (subversion-package)
"Return the default Subversion package."
(let ((distro (resolve-interface '(gnu packages version-control))))
(module-ref distro 'subversion)))
(define* (svn-fetch store ref hash-algo hash
#:optional name
#:key (system (%current-system)) guile svn)
#:key (system (%current-system)) guile
(svn (subversion-package)))
"Return a fixed-output derivation in STORE 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
@ -58,33 +65,26 @@ (define guile-for-build
(guile (module-ref distro 'guile-final)))
(package-derivation store guile system)))))
(define svn-for-build
(match svn
((? package?)
(package-derivation store svn system))
(#f ; the default
(let* ((distro (resolve-interface '(gnu packages version-control)))
(svn (module-ref distro 'subversion)))
(package-derivation store svn system)))))
(define build
#~(begin
(use-modules (guix build svn))
(svn-fetch '#$(svn-reference-url ref)
'#$(svn-reference-revision ref)
#$output
#:svn-command (string-append #$svn "/bin/svn"))))
(let* ((command (string-append (derivation->output-path svn-for-build)
"/bin/svn"))
(builder `(begin
(use-modules (guix build svn))
(svn-fetch ',(svn-reference-url ref)
',(svn-reference-revision ref)
%output
#:svn-command ',command))))
(build-expression->derivation store (or name "svn-checkout") builder
#:system system
#:local-build? #t
#:inputs `(("svn" ,svn-for-build))
#:hash-algo hash-algo
#:hash hash
#:recursive? #t
#:modules '((guix build svn)
(guix build utils))
#:guile-for-build guile-for-build
#:local-build? #t)))
(run-with-store store
(gexp->derivation (or name "svn-checkout") build
#:system system
#:local-build? #t
#:hash-algo hash-algo
#:hash hash
#:recursive? #t
#:modules '((guix build svn)
(guix build utils))
#:guile-for-build guile-for-build
#:local-build? #t)
#:guile-for-build guile-for-build
#:system system))
;;; svn-download.scm ends here