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time-machine: Add '--disable-authentication'.

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* guix/inferior.scm (cached-channel-instance): Add #:authenticate? and
pass it to 'latest-channel-instances'.
* guix/scripts/time-machine.scm (show-help, %options): Add
'--disable-authentication'.
(%default-options): Add 'authenticate-channels?'.
(guix-time-machine): Honor it.
This commit is contained in:
Ludovic Courtès 2020-06-16 15:33:57 +02:00
parent a9eeeaa6ae
commit 838ac881ec
No known key found for this signature in database
GPG Key ID: 090B11993D9AEBB5
2 changed files with 19 additions and 5 deletions
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9
guix/inferior.scm
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@ -687,13 +687,16 @@ failing when GUIX is too old and lacks the 'guix repl' command."
(define* (cached-channel-instance store
channels
#:key
(authenticate? #t)
(cache-directory (%inferior-cache-directory))
(ttl (* 3600 24 30)))
"Return a directory containing a guix filetree defined by CHANNELS, a list of channels.
The directory is a subdirectory of CACHE-DIRECTORY, where entries can be reclaimed after TTL seconds.
This procedure opens a new connection to the build daemon."
This procedure opens a new connection to the build daemon. AUTHENTICATE?
determines whether CHANNELS are authenticated."
(define instances
(latest-channel-instances store channels))
(latest-channel-instances store channels
#:authenticate? authenticate?))
(define key
(bytevector->base32-string
@ -732,6 +735,8 @@ This procedure opens a new connection to the build daemon."
(mbegin %store-monad
(show-what-to-build* (list profile))
(built-derivations (list profile))
;; Note: Caching is fine even when AUTHENTICATE? is false because
;; we always call 'latest-channel-instances?'.
(symlink* (derivation->output-path profile) cached)
(add-indirect-root* cached)
(return cached))))))

15
guix/scripts/time-machine.scm
View File

@ -1,6 +1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019 Konrad Hinsen <konrad.hinsen@fastmail.net>
;;; Copyright © 2019 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2019, 2020 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -55,6 +55,9 @@ Execute COMMAND ARGS... in an older version of Guix.\n"))
--commit=COMMIT use the specified COMMIT"))
(display (G_ "
--branch=BRANCH use the tip of the specified BRANCH"))
(display (G_ "
--disable-authentication
disable channel authentication"))
(newline)
(show-build-options-help)
(newline)
@ -80,6 +83,9 @@ Execute COMMAND ARGS... in an older version of Guix.\n"))
(option '("branch") #t #f
(lambda (opt name arg result)
(alist-cons 'ref `(branch . ,arg) result)))
(option '("disable-authentication") #f #f
(lambda (opt name arg result)
(alist-cons 'authenticate-channels? #f result)))
(option '(#\h "help") #f #f
(lambda args
(show-help)
@ -98,6 +104,7 @@ Execute COMMAND ARGS... in an older version of Guix.\n"))
(print-build-trace? . #t)
(print-extended-build-trace? . #t)
(multiplexed-build-output? . #t)
(authenticate-channels? . #t)
(graft? . #t)
(debug . 0)
(verbosity . 1)))
@ -124,12 +131,14 @@ Execute COMMAND ARGS... in an older version of Guix.\n"))
(with-git-error-handling
(let* ((opts (parse-args args))
(channels (channel-list opts))
(command-line (assoc-ref opts 'exec)))
(command-line (assoc-ref opts 'exec))
(authenticate? (assoc-ref opts 'authenticate-channels?)))
(when command-line
(let* ((directory
(with-store store
(with-status-verbosity (assoc-ref opts 'verbosity)
(set-build-options-from-command-line store opts)
(cached-channel-instance store channels))))
(cached-channel-instance store channels
#:authenticate? authenticate?))))
(executable (string-append directory "/bin/guix")))
(apply execl (cons* executable executable command-line))))))))