709 lines
28 KiB
Scheme
709 lines
28 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2013, 2014, 2015, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
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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 scripts pull)
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#:use-module (guix ui)
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#:use-module (guix utils)
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#:use-module ((guix status) #:select (with-status-verbosity))
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#:use-module (guix scripts)
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#:use-module (guix store)
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#:use-module (guix config)
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#:use-module (guix packages)
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#:use-module (guix derivations)
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#:use-module (guix profiles)
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#:use-module (guix gexp)
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#:use-module (guix grafts)
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#:use-module (guix memoization)
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#:use-module (guix monads)
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#:use-module (guix channels)
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#:autoload (guix inferior) (open-inferior)
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#:use-module (guix scripts build)
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#:autoload (guix build utils) (which)
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#:use-module (guix git)
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#:use-module (git)
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#:use-module (gnu packages)
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#:use-module ((guix scripts package) #:select (build-and-use-profile
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delete-matching-generations))
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#:use-module ((gnu packages base) #:select (canonical-package))
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#:use-module (gnu packages guile)
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#:use-module ((gnu packages bootstrap)
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#:select (%bootstrap-guile))
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#:use-module ((gnu packages certs) #:select (le-certs))
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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-34)
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#:use-module (srfi srfi-35)
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#:use-module (srfi srfi-37)
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#:use-module (ice-9 match)
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#:use-module (ice-9 vlist)
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#:use-module (ice-9 format)
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#:export (display-profile-content
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guix-pull))
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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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`((system . ,(%current-system))
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(substitutes? . #t)
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(build-hook? . #t)
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(print-build-trace? . #t)
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(print-extended-build-trace? . #t)
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(multiplexed-build-output? . #t)
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(graft? . #t)
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(debug . 0)
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(verbosity . 1)))
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(define (show-help)
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(display (G_ "Usage: guix pull [OPTION]...
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Download and deploy the latest version of Guix.\n"))
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(display (G_ "
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--verbose produce verbose output"))
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(display (G_ "
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-C, --channels=FILE deploy the channels defined in FILE"))
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(display (G_ "
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--url=URL download from the Git repository at URL"))
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(display (G_ "
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--commit=COMMIT download the specified COMMIT"))
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(display (G_ "
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--branch=BRANCH download the tip of the specified BRANCH"))
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(display (G_ "
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-N, --news display news compared to the previous generation"))
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(display (G_ "
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-l, --list-generations[=PATTERN]
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list generations matching PATTERN"))
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(display (G_ "
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--roll-back roll back to the previous generation"))
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(display (G_ "
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-d, --delete-generations[=PATTERN]
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delete generations matching PATTERN"))
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(display (G_ "
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-S, --switch-generation=PATTERN
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switch to a generation matching PATTERN"))
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(display (G_ "
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-p, --profile=PROFILE use PROFILE instead of ~/.config/guix/current"))
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(display (G_ "
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-v, --verbosity=LEVEL use the given verbosity LEVEL"))
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(display (G_ "
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-s, --system=SYSTEM attempt to build for SYSTEM--e.g., \"i686-linux\""))
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(display (G_ "
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--bootstrap use the bootstrap Guile to build the new Guix"))
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(newline)
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(show-build-options-help)
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(display (G_ "
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-h, --help display this help and exit"))
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(display (G_ "
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-V, --version display version information and exit"))
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(newline)
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(show-bug-report-information))
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(define %options
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;; Specifications of the command-line options.
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(cons* (option '("verbose") #f #f
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(lambda (opt name arg result)
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(alist-cons 'verbose? #t result)))
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(option '(#\C "channels") #t #f
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(lambda (opt name arg result)
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(alist-cons 'channel-file arg result)))
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(option '(#\l "list-generations") #f #t
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(lambda (opt name arg result)
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(cons `(query list-generations ,arg)
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result)))
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(option '("roll-back") #f #f
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(lambda (opt name arg result)
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(cons '(generation roll-back)
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result)))
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(option '(#\S "switch-generation") #t #f
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(lambda (opt name arg result)
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(cons `(generation switch ,arg)
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result)))
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(option '(#\d "delete-generations") #f #t
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(lambda (opt name arg result)
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(cons `(generation delete ,arg)
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result)))
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(option '(#\N "news") #f #f
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(lambda (opt name arg result)
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(cons '(query display-news) result)))
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(option '("url") #t #f
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(lambda (opt name arg result)
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(alist-cons 'repository-url arg
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(alist-delete 'repository-url result))))
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(option '("commit") #t #f
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(lambda (opt name arg result)
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(alist-cons 'ref `(commit . ,arg) result)))
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(option '("branch") #t #f
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(lambda (opt name arg result)
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(alist-cons 'ref `(branch . ,arg) result)))
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(option '(#\p "profile") #t #f
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(lambda (opt name arg result)
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(alist-cons 'profile (canonicalize-profile arg)
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result)))
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(option '(#\s "system") #t #f
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(lambda (opt name arg result)
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(alist-cons 'system arg
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(alist-delete 'system result eq?))))
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(option '(#\n "dry-run") #f #f
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(lambda (opt name arg result)
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(alist-cons 'dry-run? #t (alist-cons 'graft? #f result))))
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(option '(#\v "verbosity") #t #f
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(lambda (opt name arg result)
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(let ((level (string->number* arg)))
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(alist-cons 'verbosity level
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(alist-delete 'verbosity result)))))
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(option '("bootstrap") #f #f
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(lambda (opt name arg result)
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(alist-cons 'bootstrap? #t 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-and-exit "guix pull")))
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%standard-build-options))
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(define* (display-profile-news profile #:key concise?
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current-is-newer?)
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"Display what's up in PROFILE--new packages, and all that. If
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CURRENT-IS-NEWER? is true, assume that the current process represents the
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newest generation of PROFILE."
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(match (memv (generation-number profile)
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(reverse (profile-generations profile)))
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((current previous _ ...)
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(let ((these (fold-available-packages
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(lambda* (name version result
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#:key supported? deprecated?
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#:allow-other-keys)
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(if (and supported? (not deprecated?))
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(alist-cons name version result)
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result))
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'()))
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(those (profile-package-alist
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(generation-file-name profile
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(if current-is-newer?
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previous
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current)))))
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(let ((old (if current-is-newer? those these))
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(new (if current-is-newer? these those)))
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(display-new/upgraded-packages old new
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#:concise? concise?
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#:heading
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(G_ "New in this revision:\n")))))
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(_ #t)))
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(define (display-channel channel)
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"Display information about CHANNEL."
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(format (current-error-port)
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;; TRANSLATORS: This describes a "channel"; the first placeholder is
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;; the channel name (e.g., "guix") and the second placeholder is its
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;; URL.
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(G_ " ~a at ~a~%")
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(channel-name channel)
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(channel-url channel)))
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(define (channel=? channel1 channel2)
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"Return true if CHANNEL1 and CHANNEL2 are the same for all practical
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purposes."
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;; Assume that the URL matters less than the name.
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(eq? (channel-name channel1) (channel-name channel2)))
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(define (display-channel-news profile)
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"Display news about the channels of PROFILE "
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(define previous
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(and=> (relative-generation profile -1)
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(cut generation-file-name profile <>)))
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(when previous
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(let ((old-channels (profile-channels previous))
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(new-channels (profile-channels profile)))
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(and (pair? old-channels) (pair? new-channels)
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(begin
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(match (lset-difference channel=? new-channels old-channels)
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(()
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#t)
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(new
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(let ((count (length new)))
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(format (current-error-port)
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(N_ " ~*One new channel:~%"
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" ~a new channels:~%" count)
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count)
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(for-each display-channel new))))
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(match (lset-difference channel=? old-channels new-channels)
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(()
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#t)
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(removed
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(let ((count (length removed)))
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(format (current-error-port)
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(N_ " ~*One channel removed:~%"
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" ~a channels removed:~%" count)
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count)
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(for-each display-channel removed)))))))))
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(define (display-news profile)
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;; Display profile news, with the understanding that this process represents
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;; the newest generation.
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(display-profile-news profile
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#:current-is-newer? #t)
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(display-channel-news profile))
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(define* (build-and-install instances profile
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#:key use-substitutes? verbose? dry-run?)
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"Build the tool from SOURCE, and install it in PROFILE. When DRY-RUN? is
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true, display what would be built without actually building it."
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(define update-profile
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(store-lift build-and-use-profile))
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(define guix-command
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;; The 'guix' command before we've built the new profile.
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(which "guix"))
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(mlet %store-monad ((manifest (channel-instances->manifest instances)))
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(mbegin %store-monad
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(update-profile profile manifest
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#:use-substitutes? use-substitutes?
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#:hooks %channel-profile-hooks
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#:dry-run? dry-run?)
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(munless dry-run?
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(return (newline))
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(return (display-profile-news profile #:concise? #t))
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(if guix-command
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(let ((new (map (cut string-append <> "/bin/guix")
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(list (user-friendly-profile profile)
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profile))))
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;; Is the 'guix' command previously in $PATH the same as the new
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;; one? If the answer is "no", then suggest 'hash guix'.
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(unless (member guix-command new)
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(display-hint (format #f (G_ "After setting @code{PATH}, run
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@command{hash guix} to make sure your shell refers to @file{~a}.")
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(first new))))
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(return #f))
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(return #f))))))
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(define (honor-lets-encrypt-certificates! store)
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"Tell Guile-Git to use the Let's Encrypt certificates."
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(let* ((drv (package-derivation store le-certs))
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(certs (string-append (derivation->output-path drv)
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"/etc/ssl/certs")))
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(build-derivations store (list drv))
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(set-tls-certificate-locations! certs)))
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(define (honor-x509-certificates store)
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"Use the right X.509 certificates for Git checkouts over HTTPS."
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(unless (honor-system-x509-certificates!)
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(honor-lets-encrypt-certificates! store)))
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(define (report-git-error error)
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"Report the given Guile-Git error."
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;; Prior to Guile-Git commit b6b2760c2fd6dfaa5c0fedb43eeaff06166b3134,
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;; errors would be represented by integers.
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(match error
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((? integer? error) ;old Guile-Git
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(leave (G_ "Git error ~a~%") error))
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((? git-error? error) ;new Guile-Git
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(leave (G_ "Git error: ~a~%") (git-error-message error)))))
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(define-syntax-rule (with-git-error-handling body ...)
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(catch 'git-error
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(lambda ()
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body ...)
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(lambda (key err)
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(report-git-error err))))
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;;;
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;;; Profile.
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;;;
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(define %current-profile
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;; The "real" profile under /var/guix.
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(string-append %profile-directory "/current-guix"))
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(define %user-profile-directory
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;; The user-friendly name of %CURRENT-PROFILE.
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(string-append (config-directory #:ensure? #f) "/current"))
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(define (migrate-generations profile directory)
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"Migrate the generations of PROFILE to DIRECTORY."
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(format (current-error-port)
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(G_ "Migrating profile generations to '~a'...~%")
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%profile-directory)
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(let ((current (generation-number profile)))
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(for-each (lambda (generation)
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(let ((source (generation-file-name profile generation))
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(target (string-append directory "/current-guix-"
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(number->string generation)
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"-link")))
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;; Note: Don't use 'rename-file' as SOURCE and TARGET might
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;; live on different file systems.
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(symlink (readlink source) target)
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(delete-file source)))
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(profile-generations profile))
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(symlink (string-append "current-guix-"
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(number->string current) "-link")
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(string-append directory "/current-guix"))))
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(define (ensure-default-profile)
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(ensure-profile-directory)
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;; In 0.15.0+ we'd create ~/.config/guix/current-[0-9]*-link symlinks. Move
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;; them to %PROFILE-DIRECTORY.
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;;
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;; XXX: Ubuntu's 'sudo' preserves $HOME by default, and thus the second
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;; condition below is always false when one runs "sudo guix pull". As a
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;; workaround, skip this code when $SUDO_USER is set. See
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;; <https://bugs.gnu.org/36785>.
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(unless (or (getenv "SUDO_USER")
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(string=? %profile-directory
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(dirname
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(canonicalize-profile %user-profile-directory))))
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(migrate-generations %user-profile-directory %profile-directory))
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;; Make sure ~/.config/guix/current points to /var/guix/profiles/….
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(let ((link %user-profile-directory))
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(unless (equal? (false-if-exception (readlink link))
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%current-profile)
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(catch 'system-error
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(lambda ()
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(false-if-exception (delete-file link))
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(symlink %current-profile link))
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(lambda args
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(leave (G_ "while creating symlink '~a': ~a~%")
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link (strerror (system-error-errno args))))))))
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;;;
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;;; Queries.
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;;;
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(define (display-profile-content profile number)
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"Display the packages in PROFILE, generation NUMBER, in a human-readable
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way and displaying details about the channel's source code."
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(display-generation profile number)
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(for-each (lambda (entry)
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(format #t " ~a ~a~%"
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(manifest-entry-name entry)
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(manifest-entry-version entry))
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(match (assq 'source (manifest-entry-properties entry))
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(('source ('repository ('version 0)
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('url url)
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('branch branch)
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('commit commit)
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_ ...))
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(format #t (G_ " repository URL: ~a~%") url)
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(when branch
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(format #t (G_ " branch: ~a~%") branch))
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(format #t (G_ " commit: ~a~%") commit))
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(_ #f)))
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;; Show most recently installed packages last.
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(reverse
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(manifest-entries
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(profile-manifest (if (zero? number)
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profile
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(generation-file-name profile number)))))))
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(define (indented-string str indent)
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"Return STR with each newline preceded by IDENT spaces."
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(define indent-string
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(make-list indent #\space))
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(list->string
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(string-fold-right (lambda (chr result)
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(if (eqv? chr #\newline)
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(cons chr (append indent-string result))
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(cons chr result)))
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'()
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str)))
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(define profile-package-alist
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(mlambda (profile)
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"Return a name/version alist representing the packages in PROFILE."
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(let* ((inferior (open-inferior profile))
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(packages (inferior-available-packages inferior)))
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(close-inferior inferior)
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packages)))
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(define (new/upgraded-packages alist1 alist2)
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"Compare ALIST1 and ALIST2, both of which are lists of package name/version
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pairs, and return two values: the list of packages new in ALIST2, and the list
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of packages upgraded in ALIST2."
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(let* ((old (fold (match-lambda*
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(((name . version) table)
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(match (vhash-assoc name table)
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(#f
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(vhash-cons name version table))
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((_ . previous-version)
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(if (version>? version previous-version)
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(vhash-cons name version table)
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table)))))
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vlist-null
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alist1))
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(new (remove (match-lambda
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((name . _)
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(vhash-assoc name old)))
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alist2))
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(upgraded (filter-map (match-lambda
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((name . new-version)
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(match (vhash-assoc name old)
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(#f #f)
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((_ . old-version)
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(and (version>? new-version old-version)
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(string-append name "@"
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new-version))))))
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alist2)))
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(values new upgraded)))
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(define* (ellipsis #:optional (port (current-output-port)))
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"Return HORIZONTAL ELLIPSIS three dots if PORT's encoding cannot represent
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it."
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(match (port-encoding port)
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("UTF-8" "…")
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(_ "...")))
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(define* (display-new/upgraded-packages alist1 alist2
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||
#:key (heading "") concise?)
|
||
"Given the two package name/version alists ALIST1 and ALIST2, display the
|
||
list of new and upgraded packages going from ALIST1 to ALIST2. When ALIST1
|
||
and ALIST2 differ, display HEADING upfront. When CONCISE? is true, do not
|
||
display long package lists that would fill the user's screen."
|
||
(define (pretty str column)
|
||
(indented-string (fill-paragraph str (- (%text-width) 4)
|
||
column)
|
||
4))
|
||
|
||
(define concise/max-item-count
|
||
;; Maximum number of items to display when CONCISE? is true.
|
||
12)
|
||
|
||
(define list->enumeration
|
||
(if concise?
|
||
(lambda* (lst #:optional (max concise/max-item-count))
|
||
(if (> (length lst) max)
|
||
(string-append (string-join (take lst max) ", ")
|
||
", " (ellipsis))
|
||
(string-join lst ", ")))
|
||
(cut string-join <> ", ")))
|
||
|
||
(let-values (((new upgraded) (new/upgraded-packages alist1 alist2)))
|
||
(define new-count (length new))
|
||
(define upgraded-count (length upgraded))
|
||
|
||
(unless (and (null? new) (null? upgraded))
|
||
(display heading))
|
||
|
||
(match new-count
|
||
(0 #t)
|
||
(count
|
||
(format #t (N_ " ~h new package: ~a~%"
|
||
" ~h new packages: ~a~%" count)
|
||
count
|
||
(pretty (list->enumeration (sort (map first new) string<?))
|
||
30))))
|
||
(match upgraded-count
|
||
(0 #t)
|
||
(count
|
||
(format #t (N_ " ~h package upgraded: ~a~%"
|
||
" ~h packages upgraded: ~a~%" count)
|
||
count
|
||
(pretty (list->enumeration (sort upgraded string<?))
|
||
35))))
|
||
|
||
(when (and concise?
|
||
(or (> new-count concise/max-item-count)
|
||
(> upgraded-count concise/max-item-count)))
|
||
(display-hint (G_ "Run @command{guix pull --news} to view the complete
|
||
list of package changes.")))))
|
||
|
||
(define (display-profile-content-diff profile gen1 gen2)
|
||
"Display the changes in PROFILE GEN2 compared to generation GEN1."
|
||
(define (package-alist generation)
|
||
(profile-package-alist (generation-file-name profile generation)))
|
||
|
||
(display-profile-content profile gen2)
|
||
(display-new/upgraded-packages (package-alist gen1)
|
||
(package-alist gen2)))
|
||
|
||
(define (process-query opts profile)
|
||
"Process any query on PROFILE specified by OPTS."
|
||
(match (assoc-ref opts 'query)
|
||
(('list-generations pattern)
|
||
(define (list-generations profile numbers)
|
||
(match numbers
|
||
((first rest ...)
|
||
(display-profile-content profile first)
|
||
(let loop ((numbers numbers))
|
||
(match numbers
|
||
((first second rest ...)
|
||
(display-profile-content-diff profile
|
||
first second)
|
||
(loop (cons second rest)))
|
||
((_) #t)
|
||
(() #t))))))
|
||
|
||
(leave-on-EPIPE
|
||
(cond ((not (file-exists? profile)) ; XXX: race condition
|
||
(raise (condition (&profile-not-found-error
|
||
(profile profile)))))
|
||
((not pattern)
|
||
(list-generations profile (profile-generations profile)))
|
||
((matching-generations pattern profile)
|
||
=>
|
||
(match-lambda
|
||
(()
|
||
(exit 1))
|
||
((numbers ...)
|
||
(list-generations profile numbers)))))))
|
||
(('display-news)
|
||
(display-news profile))))
|
||
|
||
(define (process-generation-change opts profile)
|
||
"Process a request to change the current generation (roll-back, switch, delete)."
|
||
(unless (assoc-ref opts 'dry-run?)
|
||
(match (assoc-ref opts 'generation)
|
||
(('roll-back)
|
||
(with-store store
|
||
(roll-back* store profile)))
|
||
(('switch pattern)
|
||
(let ((number (relative-generation-spec->number profile pattern)))
|
||
(if number
|
||
(switch-to-generation* profile number)
|
||
(leave (G_ "cannot switch to generation '~a'~%") pattern))))
|
||
(('delete pattern)
|
||
(with-store store
|
||
(delete-matching-generations store profile pattern))))))
|
||
|
||
(define (channel-list opts)
|
||
"Return the list of channels to use. If OPTS specify a channel file,
|
||
channels are read from there; otherwise, if ~/.config/guix/channels.scm
|
||
exists, read it; otherwise %DEFAULT-CHANNELS is used. Apply channel
|
||
transformations specified in OPTS (resulting from '--url', '--commit', or
|
||
'--branch'), if any."
|
||
(define file
|
||
(assoc-ref opts 'channel-file))
|
||
|
||
(define default-file
|
||
(string-append (config-directory) "/channels.scm"))
|
||
|
||
(define (load-channels file)
|
||
(let ((result (load* file (make-user-module '((guix channels))))))
|
||
(if (and (list? result) (every channel? result))
|
||
result
|
||
(leave (G_ "'~a' did not return a list of channels~%") file))))
|
||
|
||
(define channels
|
||
(cond (file
|
||
(load-channels file))
|
||
((file-exists? default-file)
|
||
(load-channels default-file))
|
||
(else
|
||
%default-channels)))
|
||
|
||
(define (environment-variable)
|
||
(match (getenv "GUIX_PULL_URL")
|
||
(#f #f)
|
||
(url
|
||
(warning (G_ "The 'GUIX_PULL_URL' environment variable is deprecated.
|
||
Use '~/.config/guix/channels.scm' instead."))
|
||
url)))
|
||
|
||
(let ((ref (assoc-ref opts 'ref))
|
||
(url (or (assoc-ref opts 'repository-url)
|
||
(environment-variable))))
|
||
(if (or ref url)
|
||
(match (find guix-channel? channels)
|
||
((? channel? guix)
|
||
;; Apply '--url', '--commit', and '--branch' to the 'guix' channel.
|
||
(let ((url (or url (channel-url guix))))
|
||
(cons (match ref
|
||
(('commit . commit)
|
||
(channel (inherit guix)
|
||
(url url) (commit commit) (branch #f)))
|
||
(('branch . branch)
|
||
(channel (inherit guix)
|
||
(url url) (commit #f) (branch branch)))
|
||
(#f
|
||
(channel (inherit guix) (url url))))
|
||
(remove guix-channel? channels))))
|
||
(#f ;no 'guix' channel, failure will ensue
|
||
channels))
|
||
channels)))
|
||
|
||
|
||
(define (guix-pull . args)
|
||
(with-error-handling
|
||
(with-git-error-handling
|
||
(let* ((opts (parse-command-line args %options
|
||
(list %default-options)))
|
||
(cache (string-append (cache-directory) "/pull"))
|
||
(channels (channel-list opts))
|
||
(profile (or (assoc-ref opts 'profile) %current-profile)))
|
||
(cond ((assoc-ref opts 'query)
|
||
(process-query opts profile))
|
||
((assoc-ref opts 'generation)
|
||
(process-generation-change opts profile))
|
||
(else
|
||
(with-store store
|
||
(ensure-default-profile)
|
||
(with-status-verbosity (assoc-ref opts 'verbosity)
|
||
(parameterize ((%current-system (assoc-ref opts 'system))
|
||
(%graft? (assoc-ref opts 'graft?))
|
||
(%repository-cache-directory cache))
|
||
(set-build-options-from-command-line store opts)
|
||
(honor-x509-certificates store)
|
||
|
||
(let ((instances (latest-channel-instances store channels)))
|
||
(format (current-error-port)
|
||
(N_ "Building from this channel:~%"
|
||
"Building from these channels:~%"
|
||
(length instances)))
|
||
(for-each (lambda (instance)
|
||
(let ((channel
|
||
(channel-instance-channel instance)))
|
||
(format (current-error-port)
|
||
" ~10a~a\t~a~%"
|
||
(channel-name channel)
|
||
(channel-url channel)
|
||
(string-take
|
||
(channel-instance-commit instance)
|
||
7))))
|
||
instances)
|
||
(parameterize ((%guile-for-build
|
||
(package-derivation
|
||
store
|
||
(if (assoc-ref opts 'bootstrap?)
|
||
%bootstrap-guile
|
||
(canonical-package guile-2.2)))))
|
||
(run-with-store store
|
||
(build-and-install instances profile
|
||
#:dry-run?
|
||
(assoc-ref opts 'dry-run?)
|
||
#:use-substitutes?
|
||
(assoc-ref opts 'substitutes?)
|
||
#:verbose?
|
||
(assoc-ref opts 'verbose?))))))))))))))
|
||
|
||
;;; pull.scm ends here
|