6cca8f0694
* guix/scripts/weather.scm (show-help, %options): Add ‘-e’. (guix-weather): Handle it. * doc/guix.texi (Invoking guix weather): Document it. Change-Id: I6dc97ec2b8226b57be33247b05a34c23b573a64f
684 lines
27 KiB
Scheme
684 lines
27 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2017-2024 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
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;;; Copyright © 2018 Kyle Meyer <kyle@kyleam.com>
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;;; Copyright © 2020 Simon Tournier <zimon.toutoune@gmail.com>
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;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
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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 weather)
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#:use-module (guix ui)
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#:use-module (guix scripts)
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#:use-module (guix packages)
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#:use-module (guix profiles)
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#:use-module (guix derivations)
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#:use-module (guix progress)
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#:use-module (guix monads)
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#:use-module (guix store)
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#:use-module (guix gexp)
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#:use-module (guix colors)
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#:use-module ((guix build syscalls) #:select (terminal-columns))
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#:use-module ((guix build utils) #:select (every*))
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#:use-module (guix substitutes)
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#:use-module (guix narinfo)
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#:use-module (guix pki)
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#:autoload (gcrypt pk-crypto) (canonical-sexp->string)
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#:use-module (guix http-client)
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#:use-module (guix ci)
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#:use-module (guix sets)
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#:use-module (guix graph)
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#:use-module (guix scripts build)
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#:autoload (guix scripts graph) (%bag-node-type)
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#:use-module (gnu packages)
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#:use-module (web uri)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-19)
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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-37)
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#:use-module (ice-9 match)
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#:use-module (ice-9 format)
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#:use-module (ice-9 vlist)
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#:export (guix-weather))
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(define (all-packages)
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"Return the list of public packages we are going to query."
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(delete-duplicates
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(fold-packages (lambda (package result)
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(match (package-replacement package)
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((? package? replacement)
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(cons* replacement package result))
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(#f
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(cons package result))))
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'()
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;; Dismiss deprecated packages but keep hidden packages.
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#:select? (negate package-superseded))
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eq?))
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(define (call-with-progress-reporter reporter proc)
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"This is a variant of 'call-with-progress-reporter' that works with monadic
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scope."
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;; TODO: Move to a more appropriate place.
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(with-monad %store-monad
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(start-progress-reporter! reporter)
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(mlet* %store-monad ((report -> (lambda ()
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(progress-reporter-report! reporter)))
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(result (proc report)))
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(stop-progress-reporter! reporter)
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(return result))))
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(define* (package-outputs packages
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#:optional (system (%current-system)))
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"Return the list of outputs of all of PACKAGES for the given SYSTEM."
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(define (lower-object/no-grafts obj system)
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(mlet* %store-monad ((previous (set-grafting #f))
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(drv (lower-object obj system))
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(_ (set-grafting previous)))
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(return drv)))
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(let ((packages (filter (lambda (package)
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(or (not (package? package))
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(supported-package? package system)))
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packages)))
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(format (current-error-port)
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(G_ "computing ~h package derivations for ~a...~%")
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(length packages) system)
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(call-with-progress-reporter (progress-reporter/bar (length packages))
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(lambda (report)
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(foldm %store-monad
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(lambda (package result)
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;; PACKAGE could in fact be a non-package object, for example
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;; coming from a user-specified manifest. Thus, use
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;; 'lower-object' rather than 'package->derivation' here.
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(mlet %store-monad ((drv (lower-object/no-grafts package
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system)))
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(report)
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(match (derivation->output-paths drv)
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(((names . items) ...)
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(return (append items result))))))
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'()
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packages)))))
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(define (call-with-time thunk kont)
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"Call THUNK and pass KONT the elapsed time followed by THUNK's return
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values."
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(let* ((start (current-time time-monotonic))
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(result (call-with-values thunk list))
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(end (current-time time-monotonic)))
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(apply kont (time-difference end start) result)))
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(define-syntax-rule (let/time ((time result ... exp)) body ...)
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(call-with-time (lambda () exp) (lambda (time result ...) body ...)))
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(define (histogram field proc seed lst)
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"Return an alist giving a histogram of all the values of FIELD for elements
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of LST. FIELD must be a one element procedure that returns a field's value.
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For each FIELD value, call PROC with the previous field-specific result.
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Example:
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(histogram car (lambda (x n) (+ 1 n)) 0 '((a . x)(b . y)(a . z)))
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=> ((a . 2) (b . 1))
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meaning that we have two a's and one b."
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(let loop ((lst lst)
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(result '()))
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(match lst
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(()
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result)
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((head . tail)
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(let ((value (field head)))
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(loop tail
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(match (assoc-ref result value)
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(#f
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`((,value . ,(proc head seed)) ,@result))
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(previous
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`((,value . ,(proc head previous))
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,@(alist-delete value result))))))))))
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(define (throughput lst timestamp)
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"Return the throughput, in items per second, given the elements of LST,
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calling TIMESTAMP to get the \"timestamp\" of each item."
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(let ((oldest (reduce min +inf.0 (map build-timestamp lst)))
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(now (time-second (current-time time-utc))))
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(/ (length lst) (- now oldest) 1.)))
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(define (queued-subset queue items)
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"Return the subset of ITEMS, a list of store file names, that appears in
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QUEUE, a list of builds. Return #f if elements in QUEUE lack information
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about the derivations queued, as is the case with Hydra."
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(define queued
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(append-map (lambda (build)
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(match (false-if-exception
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(read-derivation-from-file (build-derivation build)))
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(#f
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'())
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(drv
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(match (derivation->output-paths drv)
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(((names . items) ...) items)))))
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queue))
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(if (any (negate build-derivation) queue)
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#f ;no derivation information
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(lset-intersection string=? queued items)))
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(define (store-item-system store item)
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"Return the system (a string such as \"aarch64-linux\")) ITEM targets,
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or #f if it could not be determined."
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(match (valid-derivers store item)
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((drv . _)
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(and=> (false-if-exception (read-derivation-from-file drv))
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derivation-system))
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(()
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#f)))
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(define (check-narinfo-authorization narinfo)
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"Print a warning when NARINFO is not signed by an authorized key."
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(define acl
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(catch 'system-error
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(lambda ()
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(current-acl))
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(lambda args
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(warning (G_ "could not read '~a': ~a~%")
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%acl-file (strerror (system-error-errno args)))
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(warning (G_ "'~a' is unreadable, cannot determine whether \
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substitutes are authorized~%")
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%acl-file)
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#f)))
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(unless (or (not acl) (valid-narinfo? narinfo acl))
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(warning (G_ "substitutes from '~a' are unauthorized~%")
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(narinfo-uri-base narinfo))
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;; The "all substitutes" below reflects the fact that, in reality, it *is*
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;; possible to download "unauthorized" substitutes, as long as they match
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;; authorized substitutes.
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(display-hint (G_ "To authorize all substitutes from @uref{~a} to be
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downloaded, the following command needs to be run as root:
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@example
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guix archive --authorize <<EOF
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~a
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EOF
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@end example
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Alternatively, on Guix System, you can add the signing key above to the
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@code{authorized-keys} field of @code{guix-configuration}.
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See \"Getting Substitutes from Other Servers\" in the manual for more
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information.")
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(narinfo-uri-base narinfo)
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(canonical-sexp->string
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(signature-subject (narinfo-signature narinfo))))))
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(define* (report-server-coverage server items
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#:key display-missing?)
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"Report the subset of ITEMS available as substitutes on SERVER.
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When DISPLAY-MISSING? is true, display the list of missing substitutes.
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Return the coverage ratio, an exact number between 0 and 1.
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In case ITEMS is an empty list, return 1 instead."
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(define MiB (* (expt 2 20) 1.))
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;; TRANSLATORS: it is quite possible zero store items are
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;; looked for.
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(format #t (G_ "looking for ~h store items on ~a...~%")
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(length items) server)
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(let/time ((time narinfos requests-made
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(lookup-narinfos
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server items
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#:make-progress-reporter
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(lambda* (total #:key url #:allow-other-keys)
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(progress-reporter/bar total)))))
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(match narinfos
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(() #f)
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((narinfo . _)
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;; Help diagnose missing substitute authorizations.
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(check-narinfo-authorization narinfo)))
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(let ((obtained (length narinfos))
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(requested (length items))
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(missing (lset-difference string=?
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items (map narinfo-path narinfos)))
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(sizes (append-map (lambda (narinfo)
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(filter integer?
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(narinfo-file-sizes narinfo)))
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narinfos))
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(time (+ (time-second time)
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(/ (time-nanosecond time) 1e9))))
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(when (> requested 0)
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(let* ((ratio (/ obtained requested 1.))
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(colorize (cond ((> ratio 0.80)
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(coloring-procedure (color BOLD GREEN)))
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((< ratio 0.50)
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(coloring-procedure (color BOLD RED)))
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(else
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highlight))))
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(format #t (highlight "~a ~a~%") server
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;; This requires a Unicode-capable encoding, which we
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;; restrict to UTF-8 for simplicity.
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(if (string=? (port-encoding (current-output-port)) "UTF-8")
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(cond ((> ratio 0.80) "☀")
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((< ratio 0.50) "⛈")
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(else "⛅"))
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""))
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(format #t
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(colorize (G_ " ~,1f% substitutes available (~h out of ~h)~%"))
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(* 100. ratio)
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obtained requested)))
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(let ((total (/ (reduce + 0 sizes) MiB)))
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(match (length sizes)
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((? zero?)
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(format #t (G_ " unknown substitute sizes~%")))
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(len
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(if (= len obtained)
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(format #t (G_ " ~,1h MiB of nars (compressed)~%") total)
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(format #t (G_ " at least ~,1h MiB of nars (compressed)~%")
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total)))))
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(format #t (G_ " ~,1h MiB on disk (uncompressed)~%")
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(/ (reduce + 0 (map narinfo-size narinfos)) MiB))
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(when (> requests-made 0)
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(format #t (G_ " ~,3h seconds per request (~,1h seconds in total)~%")
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(/ time requests-made 1.) time)
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(format #t (G_ " ~,1h requests per second~%")
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(/ requests-made time 1.)))
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(guard (c ((http-get-error? c)
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(if (= 404 (http-get-error-code c))
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(format (current-error-port)
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(G_ " (continuous integration information \
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unavailable)~%"))
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(format (current-error-port)
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(G_ " '~a' returned ~a (~s)~%")
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(uri->string (http-get-error-uri c))
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(http-get-error-code c)
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(http-get-error-reason c)))))
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(let* ((max %query-limit)
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(queue (queued-builds server max))
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(len (length queue))
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(histo (histogram build-system
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(lambda (build count)
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(+ 1 count))
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0 queue)))
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(newline)
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(unless (null? missing)
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(match (queued-subset queue missing)
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(#f #f)
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((= length queued)
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(let ((missing (length missing)))
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(format #t (G_ " ~,1f% (~h out of ~h) of the missing items \
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are queued~%")
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(* 100. (/ queued missing))
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queued missing)))))
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(if (>= len max)
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(format #t (G_ " at least ~h queued builds~%") len)
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(format #t (G_ " ~h queued builds~%") len))
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(for-each (match-lambda
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((system . count)
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(format #t (G_ " ~a: ~a (~0,1f%)~%")
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system count (* 100. (/ count len)))))
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histo))
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(let* ((latest (latest-builds server))
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(builds/sec (throughput latest build-timestamp)))
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(format #t (G_ " build rate: ~1,2f builds per hour~%")
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(* builds/sec 3600.))
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(for-each (match-lambda
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((system . builds)
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(format #t (G_ " ~a: ~,2f builds per hour~%")
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system
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(* (throughput builds build-timestamp)
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3600.))))
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(histogram build-system cons '() latest))))
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(when (and display-missing? (not (null? missing)))
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(newline)
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(format #t (G_ "Substitutes are missing for the following items:~%"))
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;; Display two columns: store items, and their system type.
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(format #t "~:{ ~a ~a~%~}"
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(zip (map (let ((width (max (- (current-terminal-columns)
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20)
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0)))
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(lambda (item)
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(if (> (string-length item) width)
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item
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(string-pad-right item width))))
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missing)
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(with-store store
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(map (lambda (item)
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(or (store-item-system store item)
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(G_ "unknown system")))
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missing)))))
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;; Return the coverage ratio.
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(let ((total (length items)))
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(if (> total 0)
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(/ (- total (length missing)) total)
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1)))))
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;;;
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;;; Command-line options.
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;;;
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(define (show-help)
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(display (G_ "Usage: guix weather [OPTIONS] [PACKAGES ...]
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Report the availability of substitutes.\n"))
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(display (G_ "
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--substitute-urls=URLS
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check for available substitutes at URLS"))
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(display (G_ "
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-m, --manifest=MANIFEST
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look up substitutes for packages specified in MANIFEST"))
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(display (G_ "
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-e, --expression=EXPR build the object EXPR evaluates to"))
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(display (G_ "
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-c, --coverage[=COUNT]
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show substitute coverage for packages with at least
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COUNT dependents"))
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(display (G_ "
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--display-missing display the list of missing substitutes"))
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(newline)
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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-native-build-options-help)
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(newline)
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(show-bug-report-information))
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(define %options
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(cons* (option '(#\h "help") #f #f
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(lambda args
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(leave-on-EPIPE (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 weather")))
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(option '("substitute-urls") #t #f
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(lambda (opt name arg result . rest)
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(let ((urls (string-tokenize arg)))
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(for-each (lambda (url)
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(unless (string->uri url)
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(leave (G_ "~a: invalid URL~%") url)))
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urls)
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(apply values
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(alist-cons 'substitute-urls urls
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(alist-delete 'substitute-urls result))
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rest))))
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(option '(#\m "manifest") #t #f
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(lambda (opt name arg result)
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(alist-cons 'manifest arg result)))
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(option '(#\e "expression") #t #f
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(lambda (opt name arg result)
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(alist-cons 'expression arg result)))
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(option '(#\c "coverage") #f #t
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(lambda (opt name arg result)
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(alist-cons 'coverage
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(if arg (string->number* arg) 0)
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result)))
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(option '("display-missing") #f #f
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(lambda (opt name arg result)
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(alist-cons 'display-missing? #t result)))
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%standard-native-build-options))
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(define %default-options
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'())
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(define (load-manifest file)
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"Load the manifest from FILE and return the list of packages it refers to."
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(let* ((user-module (make-user-module '((guix profiles) (gnu))))
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(manifest (load* file user-module)))
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(delete-duplicates (map manifest-entry-item
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(manifest-transitive-entries manifest))
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eq?)))
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;;;
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;;; Missing package substitutes.
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;;;
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(define* (package-partition-boundary pred packages
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#:key (system (%current-system)))
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"Return the subset of PACKAGES that are at the \"boundary\" between those
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that match PRED and those that don't. The returned packages themselves do not
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match PRED but they have at least one direct dependency that does.
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Note: The assumption is that, if P matches PRED, then all the dependencies of
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P match PRED as well."
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;; XXX: Graph theoreticians surely have something to teach us about this...
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(let loop ((packages packages)
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(result (setq))
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(visited vlist-null))
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(define (visited? package)
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(vhash-assq package visited))
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(match packages
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((package . rest)
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(cond ((visited? package)
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(loop rest result visited))
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((pred package)
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||
(loop rest result (vhash-consq package #t visited)))
|
||
(else
|
||
(let* ((bag (package->bag package system))
|
||
(deps (filter-map (match-lambda
|
||
((label (? package? package) . _)
|
||
(and (not (pred package))
|
||
package))
|
||
(_ #f))
|
||
(bag-direct-inputs bag))))
|
||
(loop (append deps rest)
|
||
(if (null? deps)
|
||
(set-insert package result)
|
||
result)
|
||
(vhash-consq package #t visited))))))
|
||
(()
|
||
(set->list result)))))
|
||
|
||
(define (package->output-mapping packages system)
|
||
"Return a vhash that maps each item of PACKAGES to its corresponding output
|
||
store file names for SYSTEM."
|
||
(foldm %store-monad
|
||
(lambda (package mapping)
|
||
(mlet %store-monad ((drv (package->derivation package system
|
||
#:graft? #f)))
|
||
(return (vhash-consq package
|
||
(match (derivation->output-paths drv)
|
||
(((names . outputs) ...)
|
||
outputs))
|
||
mapping))))
|
||
vlist-null
|
||
packages))
|
||
|
||
(define (substitute-oracle server items)
|
||
"Return a procedure that, when passed a store item (one of those listed in
|
||
ITEMS), returns true if SERVER has a substitute for it, false otherwise."
|
||
(define available
|
||
(fold (lambda (narinfo set)
|
||
(set-insert (narinfo-path narinfo) set))
|
||
(set)
|
||
(lookup-narinfos server items)))
|
||
|
||
(cut set-contains? available <>))
|
||
|
||
(define* (report-package-coverage-per-system server packages system
|
||
#:key (threshold 0))
|
||
"Report on the subset of PACKAGES that lacks SYSTEM substitutes on SERVER,
|
||
sorted by decreasing number of dependents. Do not display those with less
|
||
than THRESHOLD dependents."
|
||
(mlet* %store-monad ((packages -> (package-closure packages #:system system))
|
||
(mapping (package->output-mapping packages system))
|
||
(back-edges (node-back-edges %bag-node-type packages)))
|
||
(define items
|
||
(vhash-fold (lambda (package items result)
|
||
(append items result))
|
||
'()
|
||
mapping))
|
||
|
||
(define substitutable?
|
||
(substitute-oracle server items))
|
||
|
||
(define substitutable-package?
|
||
(lambda (package)
|
||
(match (vhash-assq package mapping)
|
||
((_ . items)
|
||
(find substitutable? items))
|
||
(#f
|
||
#f))))
|
||
|
||
(define missing
|
||
(package-partition-boundary substitutable-package? packages
|
||
#:system system))
|
||
|
||
(define missing-count
|
||
(length missing))
|
||
|
||
(if (zero? threshold)
|
||
(format #t (N_ "The following ~a package is missing from '~a' for \
|
||
'~a':~%"
|
||
"The following ~a packages are missing from '~a' for \
|
||
'~a':~%"
|
||
missing-count)
|
||
missing-count server system)
|
||
(format #t (N_ "~a package is missing from '~a' for '~a':~%"
|
||
"~a packages are missing from '~a' for '~a', among \
|
||
which:~%"
|
||
missing-count)
|
||
missing-count server system))
|
||
|
||
(for-each (match-lambda
|
||
((package count)
|
||
(match (vhash-assq package mapping)
|
||
((_ . items)
|
||
(when (>= count threshold)
|
||
(format #t " ~4d\t~a@~a\t~{~a ~}~%"
|
||
count
|
||
(package-name package) (package-version package)
|
||
items)))
|
||
(#f ;PACKAGE must be an internal thing
|
||
#f))))
|
||
(sort (zip missing
|
||
(map (lambda (package)
|
||
(node-reachable-count (list package)
|
||
back-edges))
|
||
missing))
|
||
(match-lambda*
|
||
(((_ count1) (_ count2))
|
||
(< count2 count1)))))
|
||
(return #t)))
|
||
|
||
(define* (report-package-coverage server packages systems
|
||
#:key (threshold 0))
|
||
"Report on the substitute coverage for PACKAGES, for each of SYSTEMS, on
|
||
SERVER. Display information for packages with at least THRESHOLD dependents."
|
||
(with-store store
|
||
(run-with-store store
|
||
(foldm %store-monad
|
||
(lambda (system _)
|
||
(report-package-coverage-per-system server packages system
|
||
#:threshold threshold))
|
||
#f
|
||
systems))))
|
||
|
||
|
||
;;;
|
||
;;; Entry point.
|
||
;;;
|
||
|
||
(define-command (guix-weather . args)
|
||
(synopsis "report on the availability of pre-built package binaries")
|
||
|
||
(define (package-list opts)
|
||
;; Return the package list specified by OPTS.
|
||
(let ((files (filter-map (match-lambda
|
||
(('manifest . file) file)
|
||
(_ #f))
|
||
opts))
|
||
(base (filter-map (match-lambda
|
||
(('argument . spec)
|
||
(specification->package spec))
|
||
(('expression . str)
|
||
(read/eval-package-expression str))
|
||
(_
|
||
#f))
|
||
opts)))
|
||
(if (and (null? files) (null? base))
|
||
(all-packages)
|
||
(append base (append-map load-manifest files)))))
|
||
|
||
(with-error-handling
|
||
(parameterize ((current-terminal-columns (terminal-columns))
|
||
|
||
;; Set grafting upfront in case the user's input depends on
|
||
;; it (e.g., a manifest or code snippet that calls
|
||
;; 'gexp->derivation').
|
||
(%graft? #f))
|
||
(let* ((opts (parse-command-line args %options
|
||
(list %default-options)
|
||
#:build-options? #f))
|
||
(urls (or (assoc-ref opts 'substitute-urls)
|
||
(with-store store
|
||
(substitute-urls store))
|
||
(begin
|
||
;; Could not determine the daemon's current
|
||
;; substitute URLs, presumably because it's too
|
||
;; old.
|
||
(warning (G_ "using default \
|
||
substitute URLs~%"))
|
||
%default-substitute-urls)))
|
||
(systems (match (filter-map (match-lambda
|
||
(('system . system) system)
|
||
(_ #f))
|
||
opts)
|
||
(() (list (%current-system)))
|
||
(systems systems)))
|
||
(packages (package-list opts))
|
||
(items (with-store store
|
||
(concatenate
|
||
(run-with-store store
|
||
(mapm %store-monad
|
||
(lambda (system)
|
||
(package-outputs packages system))
|
||
systems))))))
|
||
(exit
|
||
(every* (lambda (server)
|
||
(define coverage
|
||
(report-server-coverage server items
|
||
#:display-missing?
|
||
(assoc-ref opts 'display-missing?)))
|
||
(match (assoc-ref opts 'coverage)
|
||
(#f #f)
|
||
(threshold
|
||
;; PACKAGES may include non-package objects coming from a
|
||
;; manifest. Filter them out.
|
||
(report-package-coverage server
|
||
(filter package? packages)
|
||
systems
|
||
#:threshold threshold)))
|
||
|
||
(= 1 coverage))
|
||
urls))))))
|
||
|
||
;;; Local Variables:
|
||
;;; eval: (put 'let/time 'scheme-indent-function 1)
|
||
;;; End:
|