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Add `guix-download'.
* guix-download.in: New file. * configure.ac: Emit `guix-download' and make it executable. * Makefile.am (bin_SCRIPTS): Add `guix-download'. * po/POTFILES.in: Add `guix-download.in'.
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parent
82058eff59
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5 changed files with 192 additions and 2 deletions
1
.gitignore
vendored
1
.gitignore
vendored
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@ -45,3 +45,4 @@ config.cache
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/doc/stamp-vti
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/doc/stamp-vti
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/doc/version.texi
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/doc/version.texi
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/distro/packages/bootstrap/x86_64-linux/guile-bootstrap-2.0.6.tar.xz
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/distro/packages/bootstrap/x86_64-linux/guile-bootstrap-2.0.6.tar.xz
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/guix-download
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@ -16,7 +16,9 @@
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# You should have received a copy of the GNU General Public License
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# You should have received a copy of the GNU General Public License
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# along with Guix. If not, see <http://www.gnu.org/licenses/>.
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# along with Guix. If not, see <http://www.gnu.org/licenses/>.
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bin_SCRIPTS = guix-build
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bin_SCRIPTS = \
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guix-build \
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guix-download
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MODULES = \
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MODULES = \
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guix/utils.scm \
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guix/utils.scm \
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@ -81,8 +81,10 @@ AC_SUBST([LIBGCRYPT])
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AC_CONFIG_FILES([Makefile
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AC_CONFIG_FILES([Makefile
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po/Makefile.in
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po/Makefile.in
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guix-build
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guix-build
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guix-download
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pre-inst-env])
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pre-inst-env])
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AC_CONFIG_COMMANDS([commands-exec], [chmod +x guix-build pre-inst-env])
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AC_CONFIG_COMMANDS([commands-exec],
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[chmod +x guix-build guix-download pre-inst-env])
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AC_OUTPUT
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AC_OUTPUT
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184
guix-download.in
Normal file
184
guix-download.in
Normal file
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@ -0,0 +1,184 @@
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#!/bin/sh
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# aside from this initial boilerplate, this is actually -*- scheme -*- code
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GUILE_LOAD_COMPILED_PATH="@guilemoduledir@:$GUILE_LOAD_COMPILED_PATH"
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export GUILE_LOAD_COMPILED_PATH
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main='(module-ref (resolve-interface '\''(guix-download)) '\'guix-download')'
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exec ${GUILE-@GUILE@} -L "@guilemoduledir@" -l "$0" \
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-c "(apply $main (cdr (command-line)))" "$@"
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!#
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;;; Guix --- Nix package management from Guile.
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;;; Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of Guix.
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;;;
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;;; 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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;;; 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 Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix-download)
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#:use-module (web uri)
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#:use-module (web client)
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#:use-module (guix store)
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#:use-module (guix utils)
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#:use-module (guix ftp-client)
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#:use-module (ice-9 match)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-11)
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#:use-module (srfi srfi-26)
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#:use-module (srfi srfi-37)
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#:use-module (rnrs bytevectors)
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#:use-module (rnrs io ports)
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#:export (guix-download))
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(define _ (cut gettext <> "guix"))
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(define N_ (cut ngettext <> <> <> "guix"))
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(define (call-with-temporary-output-file proc)
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(let* ((template (string-copy "guix-download.XXXXXX"))
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(out (mkstemp! template)))
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(dynamic-wind
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(lambda ()
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#t)
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(lambda ()
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(proc template out))
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(lambda ()
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(false-if-exception (delete-file template))))))
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(define (http-fetch url port)
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"Fetch from URL over HTTP and write the result to PORT."
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(let-values (((response data) (http-get url #:decode-body? #f)))
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(put-bytevector port data)))
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(define (ftp-fetch url port)
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"Fetch from URL over FTP and write the result to PORT."
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(let* ((conn (ftp-open (uri-host url)
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(or (uri-port url) 21)))
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(dir (dirname (uri-path url)))
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(file (basename (uri-path url)))
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(in (ftp-retr conn file dir)))
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(define len 65536)
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(define buffer
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(make-bytevector len))
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(let loop ((count (get-bytevector-n! in buffer 0 len)))
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(if (eof-object? count)
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(ftp-close conn)
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(begin
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(put-bytevector port buffer 0 count)
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(loop (get-bytevector-n! in buffer 0 len)))))))
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;;;
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;;; Command-line options.
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;;;
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(define %default-options
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;; Alist of default option values.
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`((format . ,bytevector->nix-base32-string)))
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(define-syntax-rule (leave fmt args ...)
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"Format FMT and ARGS to the error port and exit."
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(begin
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(format (current-error-port) fmt args ...)
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(exit 1)))
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(define (show-version)
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(display "guix-download (@PACKAGE_NAME@) @PACKAGE_VERSION@\n"))
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(define (show-help)
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(display (_ "Usage: guix-download [OPTION]... URL
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Download the file at URL, add it to the store, and print its store path
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and the hash of its contents.\n"))
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(format #t (_ "
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-f, --format=FMT write the hash in the given format (default: `nix-base32')"))
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(newline)
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(display (_ "
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-h, --help display this help and exit"))
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(display (_ "
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-V, --version display version information and exit"))
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(newline)
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(format #t (_ "
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Report bugs to: ~a.~%") "@PACKAGE_BUGREPORT@"))
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(define %options
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;; Specifications of the command-line options.
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(list (option '(#\f "format") #t #f
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(lambda (opt name arg result)
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(define fmt-proc
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(match arg
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("nix-base32"
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bytevector->nix-base32-string)
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("base32"
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bytevector->base32-string)
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((or "base16" "hex" "hexadecimal")
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bytevector->base16-string)
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(x
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(format (current-error-port)
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"unsupported hash format: ~a~%" arg))))
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(alist-cons 'format fmt-proc
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(alist-delete 'format result))))
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(option '(#\h "help") #f #f
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(lambda args
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(show-help)
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(exit 0)))
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(option '(#\V "version") #f #f
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(lambda args
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(show-version)
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(exit 0)))))
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;;;
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;;; Entry point.
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;;;
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(define (guix-download . args)
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(define (parse-options)
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;; Return the alist of option values.
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(args-fold args %options
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(lambda (opt name arg result)
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(leave (_ "~A: unrecognized option~%") name))
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(lambda (arg result)
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(alist-cons 'argument arg result))
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%default-options))
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(setlocale LC_ALL "")
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(textdomain "guix")
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(setvbuf (current-output-port) _IOLBF)
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(setvbuf (current-error-port) _IOLBF)
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(let* ((opts (parse-options))
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(store (open-connection))
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(uri (string->uri (assq-ref opts 'argument)))
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(fetch (case (uri-scheme uri)
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((http) http-fetch)
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((ftp) ftp-fetch)
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(else
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(begin
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(format (current-error-port)
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(_ "guix-download: ~a: unsupported URI scheme~%")
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(uri-scheme uri))
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(exit 1)))))
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(path (call-with-temporary-output-file
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(lambda (name port)
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(fetch uri port)
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(close port)
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(add-to-store store (basename (uri-path uri))
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#f #f "sha256" name))))
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(fmt (assq-ref opts 'format)))
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(format #t "~a~%~a~%"
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path
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(fmt (query-path-hash store path)))
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#t))
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@ -5,3 +5,4 @@ distro/packages/databases.scm
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distro/packages/guile.scm
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distro/packages/guile.scm
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distro/packages/typesetting.scm
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distro/packages/typesetting.scm
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guix-build.in
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guix-build.in
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guix-download.in
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