diff options
| -rw-r--r-- | doc/guix.texi | 4 | ||||
| -rw-r--r-- | guix/scripts/download.scm | 58 | ||||
| -rw-r--r-- | tests/guix-download.sh | 9 |
3 files changed, 51 insertions, 20 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index a3eba5811e..1a809c340d 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -4836,6 +4836,10 @@ When using this option, you have @emph{absolutely no guarantee} that you are communicating with the authentic server responsible for the given URL, which makes you vulnerable to ``man-in-the-middle'' attacks. +@item --output=@var{file} +@itemx -o @var{file} +Save the downloaded file to @var{file} instead of adding it to the +store. @end table @node Invoking guix hash diff --git a/guix/scripts/download.scm b/guix/scripts/download.scm index ec30b05ac0..dffff79729 100644 --- a/guix/scripts/download.scm +++ b/guix/scripts/download.scm @@ -23,12 +23,15 @@ #:use-module (guix hash) #:use-module (guix utils) #:use-module (guix base32) - #:use-module (guix download) - #:use-module ((guix build download) #:select (current-terminal-columns)) - #:use-module ((guix build syscalls) #:select (terminal-columns)) + #:use-module ((guix download) #:hide (url-fetch)) + #:use-module ((guix build download) + #:select (url-fetch current-terminal-columns)) + #:use-module ((guix build syscalls) + #:select (terminal-columns)) #:use-module (web uri) #:use-module (ice-9 match) #:use-module (srfi srfi-1) + #:use-module (srfi srfi-26) #:use-module (srfi srfi-37) #:use-module (rnrs bytevectors) #:use-module (ice-9 binary-ports) @@ -39,15 +42,31 @@ ;;; Command-line options. ;;; +(define (download-to-file url file) + "Download the file at URI to FILE. Return FILE." + (let ((uri (string->uri url))) + (match (uri-scheme uri) + ((or 'file #f) + (copy-file (uri-path uri) file)) + (_ + (url-fetch url file))) + file)) + +(define* (download-to-store* url #:key (verify-certificate? #t)) + (with-store store + (download-to-store store url + #:verify-certificate? verify-certificate?))) + (define %default-options ;; Alist of default option values. `((format . ,bytevector->nix-base32-string) - (verify-certificate? . #t))) + (verify-certificate? . #t) + (download-proc . ,download-to-store*))) (define (show-help) (display (_ "Usage: guix download [OPTION] URL -Download the file at URL, add it to the store, and print its store path -and the hash of its contents. +Download the file at URL to the store or to the given file, and print its +file name and the hash of its contents. Supported formats: 'nix-base32' (default), 'base32', and 'base16' ('hex' and 'hexadecimal' can be used as well).\n")) @@ -56,6 +75,8 @@ Supported formats: 'nix-base32' (default), 'base32', and 'base16' (format #t (_ " --no-check-certificate do not validate the certificate of HTTPS servers ")) + (format #f (_ " + -o, --output=FILE download to FILE")) (newline) (display (_ " -h, --help display this help and exit")) @@ -84,6 +105,12 @@ Supported formats: 'nix-base32' (default), 'base32', and 'base16' (option '("no-check-certificate") #f #f (lambda (opt name arg result) (alist-cons 'verify-certificate? #f result))) + (option '(#\o "output") #t #f + (lambda (opt name arg result) + (alist-cons 'download-proc + (lambda* (url #:key verify-certificate?) + (download-to-file url arg)) + (alist-delete 'download result)))) (option '(#\h "help") #f #f (lambda args @@ -113,24 +140,17 @@ Supported formats: 'nix-base32' (default), 'base32', and 'base16' (with-error-handling (let* ((opts (parse-options)) - (store (open-connection)) (arg (or (assq-ref opts 'argument) (leave (_ "no download URI was specified~%")))) (uri (or (string->uri arg) (leave (_ "~a: failed to parse URI~%") arg))) - (path (case (uri-scheme uri) - ((file) - (add-to-store store (basename (uri-path uri)) - #f "sha256" (uri-path uri))) - (else - (parameterize ((current-terminal-columns - (terminal-columns))) - (download-to-store store (uri->string uri) - (basename (uri-path uri)) - #:verify-certificate? - (assoc-ref opts - 'verify-certificate?)))))) + (fetch (assq-ref opts 'download-proc)) + (path (parameterize ((current-terminal-columns + (terminal-columns))) + (fetch arg + #:verify-certificate? + (assq-ref opts 'verify-certificate?)))) (hash (call-with-input-file (or path (leave (_ "~a: download failed~%") diff --git a/tests/guix-download.sh b/tests/guix-download.sh index 6283772c48..ebc853c7fa 100644 --- a/tests/guix-download.sh +++ b/tests/guix-download.sh @@ -1,5 +1,5 @@ # GNU Guix --- Functional package management for GNU -# Copyright © 2012, 2015 Ludovic Courtès <ludo@gnu.org> +# Copyright © 2012, 2015, 2016 Ludovic Courtès <ludo@gnu.org> # # This file is part of GNU Guix. # @@ -35,6 +35,13 @@ then false; else true; fi # This one should succeed. guix download "file://$abs_top_srcdir/README" +# This one too, even if it cannot talk to the daemon. +output="t-download-$$" +trap 'rm -f "$output"' EXIT +GUIX_DAEMON_SOCKET="/nowhere" guix download -o "$output" \ + "file://$abs_top_srcdir/README" +cmp "$output" "$abs_top_srcdir/README" + # This one should fail. if guix download "file:///does-not-exist" "file://$abs_top_srcdir/README" then false; else true; fi |