c1f7156d55
Delete the output so that download-nar doesn't error when trying to restore. * guix/svn-download.scm (svn-multi-fetch): Delete the output if it exists prior to calling download-nar.
288 lines
13 KiB
Scheme
288 lines
13 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2014-2016, 2019, 2021-2023 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2014 Sree Harsha Totakura <sreeharsha@totakura.in>
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;;; Copyright © 2017, 2019, 2021 Ricardo Wurmus <rekado@elephly.net>
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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 svn-download)
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#:use-module (guix records)
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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 modules)
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#:use-module (guix packages)
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#:use-module (guix utils)
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#:use-module ((guix build svn) #:prefix build:)
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#:use-module ((guix build utils) #:select (mkdir-p))
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#:use-module (ice-9 match)
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#:use-module (srfi srfi-1)
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#:export (svn-reference
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svn-reference?
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svn-reference-url
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svn-reference-revision
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svn-reference-recursive?
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svn-reference-user-name
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svn-reference-password
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svn-fetch
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download-svn-to-store
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svn-multi-reference
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svn-multi-reference?
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svn-multi-reference-url
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svn-multi-reference-revision
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svn-multi-reference-locations
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svn-multi-reference-recursive?
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svn-multi-reference-user-name
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svn-multi-reference-password
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svn-multi-fetch
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download-multi-svn-to-store))
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;;; Commentary:
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;;;
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;;; An <origin> method that fetches a specific revision from a Subversion
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;;; repository. The repository URL and REVISION are specified with a
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;;; <svn-reference> object. REVISION should be specified as a number.
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;;;
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;;; Code:
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(define-record-type* <svn-reference>
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svn-reference make-svn-reference
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svn-reference?
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(url svn-reference-url) ; string
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(revision svn-reference-revision) ; number
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(recursive? svn-reference-recursive? (default #f))
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(user-name svn-reference-user-name (default #f))
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(password svn-reference-password (default #f)))
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(define (subversion-package)
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"Return the default Subversion package."
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(let ((distro (resolve-interface '(gnu packages version-control))))
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(module-ref distro 'subversion)))
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(define* (svn-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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(svn (subversion-package)))
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"Return a fixed-output derivation that fetches REF, a <svn-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 guile-json
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(module-ref (resolve-interface '(gnu packages guile)) 'guile-json-4))
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(define guile-lzlib
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(module-ref (resolve-interface '(gnu packages guile)) 'guile-lzlib))
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(define guile-gnutls
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(module-ref (resolve-interface '(gnu packages tls)) 'guile-gnutls))
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(define build
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(with-imported-modules
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(source-module-closure '((guix build svn)
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(guix build download-nar)
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(guix build utils)))
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(with-extensions (list guile-json guile-gnutls ;for (guix swh)
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guile-lzlib)
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#~(begin
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(use-modules (guix build svn)
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(guix build download-nar)
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(ice-9 match))
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(or (svn-fetch (getenv "svn url")
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(string->number (getenv "svn revision"))
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#$output
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#:svn-command #+(file-append svn "/bin/svn")
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#:recursive? (match (getenv "svn recursive?")
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("yes" #t)
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(_ #f))
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#:user-name (getenv "svn user name")
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#:password (getenv "svn password"))
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(download-nar #$output))))))
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(mlet %store-monad ((guile (package->derivation guile system)))
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(gexp->derivation (or name "svn-checkout") build
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;; Use environment variables and a fixed script name so
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;; there's only one script in store for all the
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;; downloads.
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#:script-name "svn-download"
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#:env-vars
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`(("svn url" . ,(svn-reference-url ref))
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("svn revision"
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. ,(number->string (svn-reference-revision ref)))
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,@(if (svn-reference-recursive? ref)
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`(("svn recursive?" . "yes"))
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'())
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,@(if (svn-reference-user-name ref)
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`(("svn user name"
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. ,(svn-reference-user-name ref)))
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'())
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,@(if (svn-reference-password ref)
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`(("svn password"
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. ,(svn-reference-password ref)))
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'()))
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#:system system
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#:hash-algo hash-algo
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#:hash hash
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#:recursive? #t
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#:guile-for-build guile
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#:local-build? #t)))
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(define-record-type* <svn-multi-reference>
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svn-multi-reference make-svn-multi-reference
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svn-multi-reference?
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(url svn-multi-reference-url) ; string
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(revision svn-multi-reference-revision) ; number
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(locations svn-multi-reference-locations) ; list of strings
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(recursive? svn-multi-reference-recursive? (default #f))
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(user-name svn-multi-reference-user-name (default #f))
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(password svn-multi-reference-password (default #f)))
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(define* (svn-multi-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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(svn (subversion-package)))
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"Return a fixed-output derivation that fetches REF, a <svn-multi-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 guile-json
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(module-ref (resolve-interface '(gnu packages guile)) 'guile-json-4))
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(define guile-lzlib
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(module-ref (resolve-interface '(gnu packages guile)) 'guile-lzlib))
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(define guile-gnutls
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(module-ref (resolve-interface '(gnu packages tls)) 'guile-gnutls))
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(define build
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(with-imported-modules
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(source-module-closure '((guix build svn)
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(guix build download-nar)
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(guix build utils)))
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(with-extensions (list guile-json guile-gnutls ;for (guix swh)
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guile-lzlib)
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#~(begin
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(use-modules (guix build svn)
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(guix build utils)
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(guix build download-nar)
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(srfi srfi-1)
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(ice-9 match))
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(or (every
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(lambda (location)
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;; The directory must exist if we are to fetch only a
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;; single file.
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(unless (string-suffix? "/" location)
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(mkdir-p (string-append #$output "/" (dirname location))))
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(svn-fetch (string-append (getenv "svn url") "/" location)
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(string->number (getenv "svn revision"))
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(if (string-suffix? "/" location)
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(string-append #$output "/" location)
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(string-append #$output "/" (dirname location)))
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#:svn-command #+(file-append svn "/bin/svn")
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#:recursive? (match (getenv "svn recursive?")
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("yes" #t)
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(_ #f))
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#:user-name (getenv "svn user name")
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#:password (getenv "svn password")))
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(call-with-input-string (getenv "svn locations")
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read))
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(begin
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(when (file-exists? #$output)
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(delete-file-recursively #$output))
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(download-nar #$output)))))))
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(mlet %store-monad ((guile (package->derivation guile system)))
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(gexp->derivation (or name "svn-checkout") build
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;; Use environment variables and a fixed script name so
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;; there's only one script in store for all the
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;; downloads.
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#:script-name "svn-multi-download"
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#:env-vars
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`(("svn url" . ,(svn-multi-reference-url ref))
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("svn locations"
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. ,(object->string (svn-multi-reference-locations ref)))
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("svn revision"
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. ,(number->string (svn-multi-reference-revision ref)))
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,@(if (svn-multi-reference-recursive? ref)
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`(("svn recursive?" . "yes"))
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'())
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,@(if (svn-multi-reference-user-name ref)
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`(("svn user name"
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. ,(svn-multi-reference-user-name ref)))
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'())
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,@(if (svn-multi-reference-password ref)
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`(("svn password"
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. ,(svn-multi-reference-password ref)))
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'()))
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#:leaked-env-vars '("http_proxy" "https_proxy"
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"LC_ALL" "LC_MESSAGES" "LANG"
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"COLUMNS")
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#:system system
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#:hash-algo hash-algo
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#:hash hash
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#:recursive? #t
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#:guile-for-build guile
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#:local-build? #t)))
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(define* (download-svn-to-store store ref
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#:optional (name (basename (svn-reference-url ref)))
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#:key (log (current-error-port)))
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"Download from REF, a <svn-reference> object to STORE. Write progress
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reports to LOG."
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(call-with-temporary-directory
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(lambda (temp)
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(let ((result
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(parameterize ((current-output-port log))
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(build:svn-fetch (svn-reference-url ref)
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(svn-reference-revision ref)
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(string-append temp "/svn")
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#:user-name (svn-reference-user-name ref)
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#:password (svn-reference-password ref)))))
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(and result
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(add-to-store store name #t "sha256"
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(string-append temp "/svn")))))))
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(define* (download-multi-svn-to-store store ref
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#:optional (name (basename (svn-multi-reference-url ref)))
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#:key (log (current-error-port)))
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"Download from REF, a <svn-multi-reference> object to STORE. Write progress
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reports to LOG."
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(call-with-temporary-directory
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(lambda (temp)
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(and (every (lambda (location)
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(let ((dir (string-append temp "/" (dirname location))))
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(mkdir-p dir))
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(parameterize ((current-output-port log))
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(build:svn-fetch (string-append (svn-multi-reference-url ref)
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"/" location)
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(svn-multi-reference-revision ref)
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(if (string-suffix? "/" location)
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(string-append temp "/" location)
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(string-append temp "/" (dirname location)))
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#:recursive?
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(svn-multi-reference-recursive? ref)
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#:user-name (svn-multi-reference-user-name ref)
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#:password (svn-multi-reference-password ref))))
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(svn-multi-reference-locations ref))
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(add-to-store store name #t "sha256" temp)))))
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;;; svn-download.scm ends here
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