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694e10af63
* guix/ui.scm (load*): Fix comment line length. (leave-on-EPIPE): Fix typo in docstring. (substitutable-info): Fix typo in comment. (indented-string): Fix typo in docstring. (%package-metrics): Fix typo in comment. (run-guix): Fix grammar in docstring. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
1979 lines
78 KiB
Scheme
1979 lines
78 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2013, 2018 Mark H Weaver <mhw@netris.org>
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;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
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;;; Copyright © 2014 Cyril Roelandt <tipecaml@gmail.com>
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;;; Copyright © 2014 Cyrill Schenkel <cyrill.schenkel@gmail.com>
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;;; Copyright © 2014, 2015, 2017 Alex Kost <alezost@gmail.com>
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;;; Copyright © 2015 David Thompson <davet@gnu.org>
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;;; Copyright © 2015, 2016 Mathieu Lirzin <mthl@gnu.org>
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;;; Copyright © 2016 Roel Janssen <roel@gnu.org>
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;;; Copyright © 2016 Benz Schenk <benz.schenk@uzh.ch>
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;;; Copyright © 2018 Kyle Meyer <kyle@kyleam.com>
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;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
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;;; Copyright © 2019 Chris Marusich <cmmarusich@gmail.com>
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;;; Copyright © 2019 Tobias Geerinckx-Rice <me@tobias.gr>
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;;; Copyright © 2019 Simon Tournier <zimon.toutoune@gmail.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 ui)
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#:use-module (guix i18n)
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#:use-module (guix colors)
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#:use-module (guix diagnostics)
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#:use-module (guix gexp)
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#:use-module (guix sets)
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#:use-module (guix utils)
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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 profiles)
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#:use-module (guix derivations)
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#:use-module (guix build-system)
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#:use-module (guix serialization)
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#:use-module ((guix licenses)
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#:select (license? license-name license-uri))
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#:use-module ((guix build syscalls)
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#:select (free-disk-space terminal-columns terminal-rows
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with-file-lock/no-wait))
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#:use-module ((guix build utils)
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;; XXX: All we need are the bindings related to
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;; '&invoke-error'. However, to work around the bug described
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;; in 5d669883ecc104403c5d3ba7d172e9c02234577c, #:hide
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;; unwanted bindings instead of #:select'ing the needed
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;; bindings.
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#:hide (package-name->name+version
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;; Avoid "overrides core binding" warning.
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delete))
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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-19)
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#:use-module (srfi srfi-26)
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#:use-module (srfi srfi-31)
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#:use-module (srfi srfi-34)
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#:use-module (srfi srfi-35)
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#:autoload (ice-9 ftw) (scandir)
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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 regex)
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#:autoload (system base compile) (compile-file)
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#:autoload (system repl repl) (start-repl)
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#:autoload (system repl debug) (make-debug stack->vector)
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#:autoload (web uri) (encode-and-join-uri-path)
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#:use-module (texinfo)
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#:use-module (texinfo plain-text)
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#:use-module (texinfo string-utils)
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;; Re-exports for backward compatibility.
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#:re-export (G_ N_ P_ ;now in (guix i18n)
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warning info report-error leave ;now in (guix diagnostics)
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location->string
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guix-warning-port program-name)
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#:export (display-hint
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make-user-module
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load*
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warn-about-load-error
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show-version-and-exit
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show-bug-report-information
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make-regexp*
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string->number*
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size->number
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show-derivation-outputs
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build-notifier
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show-what-to-build
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show-what-to-build*
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show-manifest-transaction
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call-with-error-handling
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with-error-handling
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with-unbound-variable-handling
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leave-on-EPIPE
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read/eval
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read/eval-package-expression
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check-available-space
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indented-string
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fill-paragraph
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%text-width
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texi->plain-text
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package-description-string
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package-synopsis-string
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string->recutils
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package->recutils
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package-specification->name+version+output
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supports-hyperlinks?
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hyperlink
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file-hyperlink
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location->hyperlink
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relevance
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package-relevance
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display-search-results
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with-profile-lock
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string->generations
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string->duration
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matching-generations
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display-generation
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display-profile-content
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display-profile-content-diff
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roll-back*
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switch-to-generation*
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delete-generation*
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%default-message-language
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current-message-language
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run-guix-command
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run-guix
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guix-main))
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;;; Commentary:
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;;;
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;;; User interface facilities for command-line tools.
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;;;
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;;; Code:
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(define (print-unbound-variable-error port key args default-printer)
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;; Print unbound variable errors more nicely, and in the right language.
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(match args
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((proc message (variable) _ ...)
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;; We can always omit PROC because when it's useful (i.e., different from
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;; "module-lookup"), it gets displayed before.
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(format port (G_ "error: ~a: unbound variable") variable))
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(_
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(default-printer))))
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(set-exception-printer! 'unbound-variable print-unbound-variable-error)
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(define (make-user-module modules)
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"Return a new user module with the additional MODULES loaded."
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;; Module in which the machine description file is loaded.
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(let ((module (make-fresh-user-module)))
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(for-each (lambda (iface)
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(module-use! module (resolve-interface iface)))
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modules)
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module))
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(define (last-frame-with-source stack)
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"Walk stack upwards and return the last frame that has source location
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information, or #f if it could not be found."
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(define (frame-with-source frame)
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;; Walk from FRAME upwards until source location information is found.
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(let loop ((frame frame)
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(previous frame))
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(if (not frame)
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previous
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;; On Guile 3, the latest frame with source may be that of
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;; 'raise-exception' in boot-9.scm. Skip it.
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(if (and (frame-source frame)
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(not (eq? 'raise-exception (frame-procedure-name frame))))
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frame
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(loop (frame-previous frame) frame)))))
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(let* ((depth (stack-length stack))
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(last (and (> depth 0) (stack-ref stack 0))))
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(frame-with-source (if (> depth 1)
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(stack-ref stack 1) ;skip the 'throw' frame
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last))))
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(define* (load* file user-module
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#:key (on-error 'nothing-special))
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"Load the user provided Scheme source code FILE."
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(define (error-string frame args)
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(call-with-output-string
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(lambda (port)
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(apply display-error frame port (cdr args)))))
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(define tag
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(make-prompt-tag "user-code"))
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(catch #t
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(lambda ()
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;; XXX: Force a recompilation to avoid ABI issues.
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;;
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;; In 2.2.3, the bogus answer to <https://bugs.gnu.org/29226> was to
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;; ignore all available .go, not just those from ~/.cache, which in turn
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;; meant that we had to rebuild *everything*. Since this is too costly,
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;; we have to turn off '%fresh-auto-compile' with that version, so to
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;; avoid ABI breakage in the user's config file, we explicitly compile
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;; it (the problem remains if the user's config is spread on several
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;; modules.) See <https://bugs.gnu.org/29881>.
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(unless (string=? (version) "2.2.3")
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(set! %fresh-auto-compile #t))
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(set! %load-should-auto-compile #t)
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(save-module-excursion
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(lambda ()
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(set-current-module user-module)
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;; Hide the "auto-compiling" messages.
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(parameterize ((current-warning-port (%make-void-port "w")))
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(call-with-prompt tag
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(lambda ()
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(when (string=? (version) "2.2.3")
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(catch 'system-error
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(lambda ()
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(compile-file file #:env user-module))
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(const #f))) ;EACCES maybe, let's interpret it
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;; Give 'load' an absolute file name so that it doesn't try to
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;; search for FILE in %LOAD-PATH. Note: use 'load', not
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;; 'primitive-load', so that FILE is compiled, which then allows
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;; us to provide better error reporting with source line numbers.
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(load (canonicalize-path file)))
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(const #f))))))
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(lambda _
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;; XXX: Errors are reported from the pre-unwind handler below, but
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;; calling 'exit' from there has no effect, so we call it here.
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(exit 1))
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(rec (handle-error . args)
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;; Capture the stack up to this procedure call, excluded, and pass
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;; the faulty stack frame to 'report-load-error'.
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(let* ((stack (make-stack #t handle-error tag))
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(frame (last-frame-with-source stack)))
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(report-load-error file args frame)
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(case on-error
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((debug)
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(newline)
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(display (G_ "entering debugger; type ',bt' for a backtrace\n"))
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(start-repl #:debug (make-debug (stack->vector stack) 0
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(error-string frame args)
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#f)))
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((backtrace)
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(newline (current-error-port))
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(display-backtrace stack (current-error-port)))
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(else
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#t))))))
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(define (known-variable-definition variable)
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"Search among the currently loaded modules one that defines a variable named
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VARIABLE and return it, or #f if none was found."
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(define (module<? m1 m2)
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(match (module-name m2)
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(('gnu _ ...) #t)
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(('guix _ ...)
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(match (module-name m1)
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(('gnu _ ...) #f)
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(_ #t)))
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(_ #f)))
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(let loop ((modules (list (resolve-module '() #f #f #:ensure #f)))
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(suggestions '())
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(visited (setq)))
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(match modules
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(()
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;; Pick the "best" suggestion.
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(match (sort suggestions module<?)
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(() #f)
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((first _ ...) first)))
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((head tail ...)
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(if (set-contains? visited head)
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(loop tail suggestions visited)
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(let ((visited (set-insert head visited))
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(next (append tail
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(hash-map->list (lambda (name module)
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module)
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(module-submodules head)))))
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(match (module-local-variable head variable)
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(#f (loop next suggestions visited))
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(_
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(match (module-name head)
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(('gnu _ ...) head) ;must be that one
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(_ (loop next (cons head suggestions) visited)))))))))))
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(define %hint-color (color BOLD CYAN))
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(define* (display-hint message #:optional (port (current-error-port)))
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"Display MESSAGE, a l10n message possibly containing Texinfo markup, to
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PORT."
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(define colorize
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(if (color-output? port)
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(lambda (str)
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(colorize-string str %hint-color))
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identity))
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(display (colorize (G_ "hint: ")) port)
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(display
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;; XXX: We should arrange so that the initial indent is wider.
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(parameterize ((%text-width (max 15 (- (terminal-columns) 5))))
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(texi->plain-text message))
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port))
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(define* (report-unbound-variable-error args #:key frame)
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"Return the given unbound-variable error, where ARGS is the list of 'throw'
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arguments."
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(match args
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((key . args)
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(print-exception (current-error-port) frame key args)))
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(match args
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(('unbound-variable proc message (variable) _ ...)
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(match (known-variable-definition variable)
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(#f
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(display-hint (G_ "Did you forget a @code{use-modules} form?")))
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((? module? module)
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(display-hint (format #f (G_ "Did you forget @code{(use-modules ~a)}?")
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(module-name module))))))))
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(define (check-module-matches-file module file)
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"Check whether FILE starts with 'define-module MODULE' and print a hint if
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it doesn't."
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;; This is a common mistake when people start writing their own package
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;; definitions and try loading them with 'guix build -L …', so help them
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;; diagnose the problem.
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(define (hint)
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(display-hint (format #f (G_ "File @file{~a} should probably start with:
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@example\n(define-module ~a)\n@end example")
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file module)))
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(catch 'system-error
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(lambda ()
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(let* ((sexp (call-with-input-file file read))
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(loc (and (pair? sexp)
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(source-properties->location (source-properties sexp)))))
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(match sexp
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(('define-module (names ...) _ ...)
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(unless (equal? module names)
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(warning loc
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(G_ "module name ~a does not match file name '~a'~%")
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names (module->source-file-name module))
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(hint)))
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((? eof-object?)
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(warning (G_ "~a: file is empty~%") file))
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(else
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(hint)))))
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(const #f)))
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(define* (report-load-error file args #:optional frame)
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"Report the failure to load FILE, a user-provided Scheme file.
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ARGS is the list of arguments received by the 'throw' handler."
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(match args
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(('system-error . rest)
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(let ((err (system-error-errno args)))
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(report-error (G_ "failed to load '~a': ~a~%") file (strerror err))))
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(('read-error "scm_i_lreadparen" message _ ...)
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;; Guile's missing-paren messages are obscure so we make them more
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;; intelligible here.
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(if (string-suffix? "end of file" message)
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(let ((location (string-drop-right message
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(string-length "end of file"))))
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(format (current-error-port) (G_ "~amissing closing parenthesis~%")
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location))
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(apply throw args)))
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(('syntax-error proc message properties form subform . rest)
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(let ((loc (source-properties->location properties)))
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(report-error loc (G_ "~s: ~a~%")
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(or subform form) message)))
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(('unbound-variable _ ...)
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(report-unbound-variable-error args #:frame frame))
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(((or 'srfi-34 '%exception) obj)
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(if (message-condition? obj)
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(report-error (and (error-location? obj)
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(error-location obj))
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(G_ "~a~%")
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(gettext (condition-message obj) %gettext-domain))
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(report-error (G_ "exception thrown: ~s~%") obj))
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(when (fix-hint? obj)
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(display-hint (condition-fix-hint obj))))
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((key args ...)
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(report-error (G_ "failed to load '~a':~%") file)
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(match args
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(((? symbol? proc) (? string? message) (args ...) . rest)
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(display-error frame (current-error-port) proc message
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args rest))
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(_
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;; Some exceptions like 'git-error' do not follow Guile's convention
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;; above and need to be printed with 'print-exception'.
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(print-exception (current-error-port) frame key args))))))
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(define (warn-about-load-error file module args) ;FIXME: factorize with ↑
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"Report the failure to load FILE, a user-provided Scheme file, without
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exiting. ARGS is the list of arguments received by the 'throw' handler."
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(match args
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(('system-error . rest)
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(let ((err (system-error-errno args)))
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(warning (G_ "failed to load '~a': ~a~%") module (strerror err))))
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(('syntax-error proc message properties form . rest)
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(let ((loc (source-properties->location properties)))
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(warning loc (G_ "~a~%") message)))
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(('unbound-variable _ ...)
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(report-unbound-variable-error args))
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(((or 'srfi-34 '%exception) obj)
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(if (message-condition? obj)
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(warning (G_ "failed to load '~a': ~a~%")
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file
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(gettext (condition-message obj) %gettext-domain))
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(warning (G_ "failed to load '~a': exception thrown: ~s~%")
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file obj)))
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((error args ...)
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(warning (G_ "failed to load '~a':~%") module)
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(apply display-error #f (current-error-port) args)
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(check-module-matches-file module file))))
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(define (call-with-unbound-variable-handling thunk)
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(define tag
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(make-prompt-tag "user-code"))
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(catch 'unbound-variable
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(lambda ()
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(call-with-prompt tag
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thunk
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(const #f)))
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(const #t)
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(rec (handle-error . args)
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(let* ((stack (make-stack #t handle-error tag))
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(frame (and stack (last-frame-with-source stack))))
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(report-unbound-variable-error args #:frame frame)
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(exit 1)))))
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(define-syntax-rule (with-unbound-variable-handling exp ...)
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"Capture 'unbound-variable' exceptions in the dynamic extent of EXP... and
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report them in a user-friendly way."
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(call-with-unbound-variable-handling (lambda () exp ...)))
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(define %default-message-language
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;; Default language to use for messages.
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(make-parameter "en"))
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(define (current-message-language)
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"Return the language used for messages according to the current locale.
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Return %DEFAULT-MESSAGE-LANGUAGE if that information could not be obtained. The
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result is an ISO-639-2 language code such as \"ar\", without the territory
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part."
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(let ((locale (setlocale LC_MESSAGES)))
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(match (string-index locale #\_)
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(#f locale)
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(index (string-take locale index)))))
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(define (install-locale)
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"Install the current locale settings."
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(catch 'system-error
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(lambda _
|
||
(setlocale LC_ALL ""))
|
||
(lambda args
|
||
(display-hint (G_ "Consider installing the @code{glibc-utf8-locales} or
|
||
@code{glibc-locales} package and defining @code{GUIX_LOCPATH}, along these
|
||
lines:
|
||
|
||
@example
|
||
guix package -i glibc-utf8-locales
|
||
export GUIX_LOCPATH=\"$HOME/.guix-profile/lib/locale\"
|
||
@end example
|
||
|
||
See the \"Application Setup\" section in the manual, for more info.\n")))))
|
||
|
||
(define (initialize-guix)
|
||
"Perform the usual initialization for stand-alone Guix commands."
|
||
;; By default don't annoy users with deprecation warnings. In practice,
|
||
;; 'define-deprecated' in (ice-9 deprecated) arranges so that those warnings
|
||
;; are emitted at expansion-time only, but there are cases where they could
|
||
;; slip through, for instance when interpreting code.
|
||
(unless (getenv "GUILE_WARN_DEPRECATED")
|
||
(debug-disable 'warn-deprecated))
|
||
|
||
(install-locale)
|
||
(textdomain %gettext-domain)
|
||
|
||
;; Ignore SIGPIPE. If the daemon closes the connection, we prefer to be
|
||
;; notified via an EPIPE later.
|
||
(sigaction SIGPIPE SIG_IGN)
|
||
|
||
(setvbuf (current-output-port) 'line)
|
||
(setvbuf (current-error-port) 'line))
|
||
|
||
(define* (show-version-and-exit #:optional (command (car (command-line))))
|
||
"Display version information for COMMAND and `(exit 0)'."
|
||
(simple-format #t "~a (~a) ~a~%"
|
||
command %guix-package-name %guix-version)
|
||
(format #t "Copyright ~a 2020 ~a"
|
||
;; TRANSLATORS: Translate "(C)" to the copyright symbol
|
||
;; (C-in-a-circle), if this symbol is available in the user's
|
||
;; locale. Otherwise, do not translate "(C)"; leave it as-is. */
|
||
(G_ "(C)")
|
||
(G_ "the Guix authors\n"))
|
||
(display (G_"\
|
||
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
|
||
This is free software: you are free to change and redistribute it.
|
||
There is NO WARRANTY, to the extent permitted by law.
|
||
"))
|
||
(exit 0))
|
||
|
||
(define (show-bug-report-information)
|
||
;; TRANSLATORS: The placeholder indicates the bug-reporting address for this
|
||
;; package. Please add another line saying "Report translation bugs to
|
||
;; ...\n" with the address for translation bugs (typically your translation
|
||
;; team's web or email address).
|
||
(format #t (G_ "
|
||
Report bugs to: ~a.") %guix-bug-report-address)
|
||
(format #t (G_ "
|
||
~a home page: <~a>") %guix-package-name %guix-home-page-url)
|
||
(display (G_ "
|
||
General help using GNU software: <http://www.gnu.org/gethelp/>"))
|
||
(newline))
|
||
|
||
(define (augmented-system-error-handler file)
|
||
"Return a 'system-error' handler that mentions FILE in its message."
|
||
(lambda (key proc fmt args errno)
|
||
;; Augment the FMT and ARGS with information about TARGET (this
|
||
;; information is missing as of Guile 2.0.11, making the exception
|
||
;; uninformative.)
|
||
(apply throw key proc "~A: ~S"
|
||
(list (strerror (car errno)) file)
|
||
(list errno))))
|
||
|
||
(define-syntax apply-formals
|
||
(syntax-rules ()
|
||
((_ proc (args ...)) (proc args ...))
|
||
((_ proc (arg1 args ... . rest)) (apply proc arg1 args ... rest))))
|
||
|
||
(define-syntax-rule (error-reporting-wrapper proc formals file)
|
||
"Wrap PROC such that its 'system-error' exceptions are augmented to mention
|
||
FILE."
|
||
(let ((real-proc (@ (guile) proc)))
|
||
(lambda formals
|
||
(catch 'system-error
|
||
(lambda ()
|
||
(apply-formals real-proc formals))
|
||
(augmented-system-error-handler file)))))
|
||
|
||
(set! symlink
|
||
;; We 'set!' the global binding because (gnu build ...) modules and similar
|
||
;; typically don't use (guix ui).
|
||
(error-reporting-wrapper symlink (source target) target))
|
||
|
||
(set! copy-file
|
||
;; Note: here we use 'set!', not #:replace, because UIs typically use
|
||
;; 'copy-recursively', which doesn't use (guix ui).
|
||
(error-reporting-wrapper copy-file (source target) target))
|
||
|
||
(set! canonicalize-path
|
||
(error-reporting-wrapper canonicalize-path (file) file))
|
||
|
||
(set! delete-file
|
||
(error-reporting-wrapper delete-file (file) file))
|
||
|
||
(set! execlp
|
||
(error-reporting-wrapper execlp (filename . args) filename))
|
||
|
||
(define (make-regexp* regexp . flags)
|
||
"Like 'make-regexp' but error out if REGEXP is invalid, reporting the error
|
||
nicely."
|
||
(catch 'regular-expression-syntax
|
||
(lambda ()
|
||
(apply make-regexp regexp flags))
|
||
(lambda (key proc message . rest)
|
||
(leave (G_ "'~a' is not a valid regular expression: ~a~%")
|
||
regexp message))))
|
||
|
||
(define (string->number* str)
|
||
"Like `string->number', but error out with an error message on failure."
|
||
(or (string->number str)
|
||
(leave (G_ "~a: invalid number~%") str)))
|
||
|
||
(define (size->number str)
|
||
"Convert STR, a storage measurement representation such as \"1024\" or
|
||
\"1MiB\", to a number of bytes. Raise an error if STR could not be
|
||
interpreted."
|
||
(define unit-pos
|
||
(string-rindex str
|
||
(char-set-union (char-set #\.) char-set:digit)))
|
||
|
||
(define unit
|
||
(and unit-pos (substring str (+ 1 unit-pos))))
|
||
|
||
(let* ((numstr (if unit-pos
|
||
(substring str 0 (+ 1 unit-pos))
|
||
str))
|
||
(num (string->number numstr)))
|
||
(unless num
|
||
(leave (G_ "invalid number: ~a~%") numstr))
|
||
|
||
((compose inexact->exact round)
|
||
(* num
|
||
(match unit
|
||
((or "KiB" "K" "k") (expt 2 10))
|
||
((or "MiB" "M") (expt 2 20))
|
||
((or "GiB" "G") (expt 2 30))
|
||
((or "TiB" "T") (expt 2 40))
|
||
((or "PiB" "P") (expt 2 50))
|
||
((or "EiB" "E") (expt 2 60))
|
||
((or "ZiB" "Z") (expt 2 70))
|
||
((or "YiB" "Y") (expt 2 80))
|
||
("kB" (expt 10 3))
|
||
("MB" (expt 10 6))
|
||
("GB" (expt 10 9))
|
||
("TB" (expt 10 12))
|
||
("PB" (expt 10 15))
|
||
("EB" (expt 10 18))
|
||
("ZB" (expt 10 21))
|
||
("YB" (expt 10 24))
|
||
("" 1)
|
||
(x
|
||
(leave (G_ "unknown unit: ~a~%") unit)))))))
|
||
|
||
(define (display-collision-resolution-hint collision)
|
||
"Display hints on how to resolve COLLISION, a &profile-collistion-error."
|
||
(define (top-most-entry entry)
|
||
(let loop ((entry entry))
|
||
(match (force (manifest-entry-parent entry))
|
||
(#f entry)
|
||
(parent (loop parent)))))
|
||
|
||
(let* ((first (profile-collision-error-entry collision))
|
||
(second (profile-collision-error-conflict collision))
|
||
(name1 (manifest-entry-name (top-most-entry first)))
|
||
(name2 (manifest-entry-name (top-most-entry second))))
|
||
(if (string=? name1 name2)
|
||
(display-hint (format #f (G_ "You cannot have two different versions
|
||
or variants of @code{~a} in the same profile.")
|
||
name1))
|
||
(display-hint (format #f (G_ "Try upgrading both @code{~a} and @code{~a},
|
||
or remove one of them from the profile.")
|
||
name1 name2)))))
|
||
|
||
(define (call-with-error-handling thunk)
|
||
"Call THUNK within a user-friendly error handler."
|
||
(define (port-filename* port)
|
||
;; 'port-filename' returns #f for non-file ports, but it raises an
|
||
;; exception for file ports that are closed. Work around that.
|
||
(and (not (port-closed? port))
|
||
(port-filename port)))
|
||
|
||
(guard (c ((package-input-error? c)
|
||
(let* ((package (package-error-package c))
|
||
(input (package-error-invalid-input c))
|
||
(location (package-location package))
|
||
(file (location-file location))
|
||
(line (location-line location))
|
||
(column (location-column location)))
|
||
(leave (G_ "~a:~a:~a: package `~a' has an invalid input: ~s~%")
|
||
file line column
|
||
(package-full-name package) input)))
|
||
((package-cross-build-system-error? c)
|
||
(let* ((package (package-error-package c))
|
||
(loc (package-location package))
|
||
(system (package-build-system package)))
|
||
(leave (G_ "~a: ~a: build system `~a' does not support cross builds~%")
|
||
(location->string loc)
|
||
(package-full-name package)
|
||
(build-system-name system))))
|
||
((gexp-input-error? c)
|
||
(let ((input (package-error-invalid-input c)))
|
||
(leave (G_ "~s: invalid G-expression input~%")
|
||
(gexp-error-invalid-input c))))
|
||
((profile-not-found-error? c)
|
||
(leave (G_ "profile '~a' does not exist~%")
|
||
(profile-error-profile c)))
|
||
((missing-generation-error? c)
|
||
(leave (G_ "generation ~a of profile '~a' does not exist~%")
|
||
(missing-generation-error-generation c)
|
||
(profile-error-profile c)))
|
||
((unmatched-pattern-error? c)
|
||
(let ((pattern (unmatched-pattern-error-pattern c)))
|
||
(leave (G_ "package '~a~@[@~a~]~@[:~a~]' not found in profile~%")
|
||
(manifest-pattern-name pattern)
|
||
(manifest-pattern-version pattern)
|
||
(match (manifest-pattern-output pattern)
|
||
("out" #f)
|
||
(output output)))))
|
||
((profile-collision-error? c)
|
||
(let ((entry (profile-collision-error-entry c))
|
||
(conflict (profile-collision-error-conflict c)))
|
||
(define (report-parent-entries entry)
|
||
(let ((parent (force (manifest-entry-parent entry))))
|
||
(when (manifest-entry? parent)
|
||
(report-error (G_ " ... propagated from ~a@~a~%")
|
||
(manifest-entry-name parent)
|
||
(manifest-entry-version parent))
|
||
(report-parent-entries parent))))
|
||
|
||
(define (manifest-entry-output* entry)
|
||
(match (manifest-entry-output entry)
|
||
("out" "")
|
||
(output (string-append ":" output))))
|
||
|
||
(report-error (G_ "profile contains conflicting entries for ~a~a~%")
|
||
(manifest-entry-name entry)
|
||
(manifest-entry-output* entry))
|
||
(report-error (G_ " first entry: ~a@~a~a ~a~%")
|
||
(manifest-entry-name entry)
|
||
(manifest-entry-version entry)
|
||
(manifest-entry-output* entry)
|
||
(manifest-entry-item entry))
|
||
(report-parent-entries entry)
|
||
(report-error (G_ " second entry: ~a@~a~a ~a~%")
|
||
(manifest-entry-name conflict)
|
||
(manifest-entry-version conflict)
|
||
(manifest-entry-output* conflict)
|
||
(manifest-entry-item conflict))
|
||
(report-parent-entries conflict)
|
||
(display-collision-resolution-hint c)
|
||
(exit 1)))
|
||
((nar-error? c)
|
||
(let ((file (nar-error-file c))
|
||
(port (nar-error-port c)))
|
||
(if file
|
||
(leave (G_ "corrupt input while restoring '~a' from ~s~%")
|
||
file (or (port-filename* port) port))
|
||
(leave (G_ "corrupt input while restoring archive from ~s~%")
|
||
(or (port-filename* port) port)))))
|
||
((store-connection-error? c)
|
||
(leave (G_ "failed to connect to `~a': ~a~%")
|
||
(store-connection-error-file c)
|
||
(strerror (store-connection-error-code c))))
|
||
((store-protocol-error? c)
|
||
;; FIXME: Server-provided error messages aren't i18n'd.
|
||
(leave (G_ "~a~%")
|
||
(store-protocol-error-message c)))
|
||
((derivation-missing-output-error? c)
|
||
(leave (G_ "reference to invalid output '~a' of derivation '~a'~%")
|
||
(derivation-missing-output c)
|
||
(derivation-file-name (derivation-error-derivation c))))
|
||
((file-search-error? c)
|
||
(leave (G_ "file '~a' could not be found in these \
|
||
directories:~{ ~a~}~%")
|
||
(file-search-error-file-name c)
|
||
(file-search-error-search-path c)))
|
||
((invoke-error? c)
|
||
(leave (G_ "program exited\
|
||
~@[ with non-zero exit status ~a~]\
|
||
~@[ terminated by signal ~a~]\
|
||
~@[ stopped by signal ~a~]: ~s~%")
|
||
(invoke-error-exit-status c)
|
||
(invoke-error-term-signal c)
|
||
(invoke-error-stop-signal c)
|
||
(cons (invoke-error-program c)
|
||
(invoke-error-arguments c))))
|
||
((and (error-location? c) (message-condition? c))
|
||
(report-error (error-location c) (G_ "~a~%")
|
||
(gettext (condition-message c) %gettext-domain))
|
||
(when (fix-hint? c)
|
||
(display-hint (condition-fix-hint c)))
|
||
(exit 1))
|
||
((and (message-condition? c) (fix-hint? c))
|
||
(report-error (G_ "~a~%")
|
||
(gettext (condition-message c) %gettext-domain))
|
||
(display-hint (condition-fix-hint c))
|
||
(exit 1))
|
||
|
||
;; On Guile 3.0.0, exceptions such as 'unbound-variable' are
|
||
;; compound and include a '&message'. However, that message only
|
||
;; contains the format string. Thus, special-case it here to
|
||
;; avoid displaying a bare format string.
|
||
((cond-expand
|
||
(guile-3
|
||
((exception-predicate &exception-with-kind-and-args) c))
|
||
(else #f))
|
||
(raise c))
|
||
|
||
((message-condition? c)
|
||
;; Normally '&message' error conditions have an i18n'd message.
|
||
(leave (G_ "~a~%")
|
||
(gettext (condition-message c) %gettext-domain))))
|
||
;; Catch EPIPE and the likes.
|
||
(catch 'system-error
|
||
thunk
|
||
(lambda (key proc format-string format-args . rest)
|
||
(leave (G_ "~a: ~a~%") proc
|
||
(apply format #f format-string format-args))))))
|
||
|
||
(define-syntax-rule (leave-on-EPIPE exp ...)
|
||
"Run EXP... in a context where EPIPE errors are caught and lead to 'exit'
|
||
with successful exit code. This is useful when writing to the standard output
|
||
may lead to EPIPE, because the standard output is piped through 'head' or
|
||
similar."
|
||
(catch 'system-error
|
||
(lambda ()
|
||
exp ...)
|
||
(lambda args
|
||
;; We really have to exit this brutally, otherwise Guile eventually
|
||
;; attempts to flush all the ports, leading to an uncaught EPIPE down
|
||
;; the path.
|
||
(if (= EPIPE (system-error-errno args))
|
||
(primitive-_exit 0)
|
||
(apply throw args)))))
|
||
|
||
(define %guix-user-module
|
||
;; Module in which user expressions are evaluated.
|
||
;; Compute lazily to avoid circularity with (guix gexp).
|
||
(delay
|
||
(let ((module (make-module)))
|
||
(beautify-user-module! module)
|
||
;; Use (guix gexp) so that one can use #~ & co.
|
||
(module-use! module (resolve-interface '(guix gexp)))
|
||
module)))
|
||
|
||
(define (read/eval str)
|
||
"Read and evaluate STR, raising an error if something goes wrong."
|
||
(let ((exp (catch #t
|
||
(lambda ()
|
||
(call-with-input-string str read))
|
||
(lambda args
|
||
(leave (G_ "failed to read expression ~s: ~s~%")
|
||
str args)))))
|
||
(catch #t
|
||
(lambda ()
|
||
(eval exp (force %guix-user-module)))
|
||
(lambda args
|
||
(report-error (G_ "failed to evaluate expression '~a':~%") exp)
|
||
(match args
|
||
(('syntax-error proc message properties form . rest)
|
||
(report-error (G_ "syntax error: ~a~%") message))
|
||
(((or 'srfi-34 '%exception) obj)
|
||
(if (message-condition? obj)
|
||
(report-error (G_ "~a~%")
|
||
(gettext (condition-message obj)
|
||
%gettext-domain))
|
||
(report-error (G_ "exception thrown: ~s~%") obj)))
|
||
((error args ...)
|
||
(apply display-error #f (current-error-port) args))
|
||
(what? #f))
|
||
(exit 1)))))
|
||
|
||
(define (read/eval-package-expression str)
|
||
"Read and evaluate STR and return the package it refers to, or exit an
|
||
error."
|
||
(match (read/eval str)
|
||
((? package? p) p)
|
||
(x
|
||
(leave (G_ "expression ~s does not evaluate to a package~%")
|
||
str))))
|
||
|
||
(define (show-derivation-outputs derivation)
|
||
"Show the output file names of DERIVATION, which can be a derivation or a
|
||
derivation input."
|
||
(define (show-outputs derivation outputs)
|
||
(format #t "~{~a~%~}"
|
||
(map (cut derivation->output-path derivation <>)
|
||
outputs)))
|
||
|
||
(match derivation
|
||
((? derivation?)
|
||
(show-outputs derivation (derivation-output-names derivation)))
|
||
((? derivation-input? input)
|
||
(show-outputs (derivation-input-derivation input)
|
||
(derivation-input-sub-derivations input)))))
|
||
|
||
(define* (check-available-space need
|
||
#:optional (directory (%store-prefix)))
|
||
"Make sure at least NEED bytes are available in DIRECTORY. Otherwise emit a
|
||
warning."
|
||
(let ((free (catch 'system-error
|
||
(lambda ()
|
||
(free-disk-space directory))
|
||
(const #f))))
|
||
(when (and free (>= need free))
|
||
(warning (G_ "at least ~,1h MB needed but only ~,1h MB available in ~a~%")
|
||
(/ need 1e6) (/ free 1e6) directory))))
|
||
|
||
(define (graft-derivation? drv)
|
||
"Return true if DRV is definitely a graft derivation, false otherwise."
|
||
(match (assq-ref (derivation-properties drv) 'type)
|
||
('graft #t)
|
||
(_ #f)))
|
||
|
||
(define (profile-hook-derivation? drv)
|
||
"Return true if DRV is definitely a profile hook derivation, false otherwise."
|
||
(match (assq-ref (derivation-properties drv) 'type)
|
||
('profile-hook #t)
|
||
(_ #f)))
|
||
|
||
(define (colorize-store-file-name file)
|
||
"Colorize FILE, a store file name, such that the hash part is less prominent
|
||
that the rest."
|
||
(let ((len (string-length file))
|
||
(prefix (+ (string-length (%store-prefix)) 32 2)))
|
||
(if (< len prefix)
|
||
file
|
||
(string-append (colorize-string (string-take file prefix)
|
||
(color DARK))
|
||
(string-drop file prefix)))))
|
||
|
||
(define* (show-what-to-build store drv
|
||
#:key dry-run? (use-substitutes? #t)
|
||
(mode (build-mode normal)))
|
||
"Show what will or would (depending on DRY-RUN?) be built in realizing the
|
||
derivations listed in DRV using MODE, a 'build-mode' value. The elements of
|
||
DRV can be either derivations or derivation inputs.
|
||
|
||
Return two values: a Boolean indicating whether there's something to build,
|
||
and a Boolean indicating whether there's something to download. When
|
||
USE-SUBSTITUTES?, check and report what is prerequisites are available for
|
||
download."
|
||
(define inputs
|
||
(map (match-lambda
|
||
((? derivation? drv) (derivation-input drv))
|
||
((? derivation-input? input) input))
|
||
drv))
|
||
|
||
(define substitutable-info
|
||
;; Call 'substitution-oracle' upfront so we don't end up launching the
|
||
;; substituter many times. This makes a big difference, especially when
|
||
;; DRV is a long list as is the case with 'guix environment'.
|
||
(if use-substitutes?
|
||
(substitution-oracle store inputs #:mode mode)
|
||
(const #f)))
|
||
|
||
(define colorized-store-item
|
||
(if (color-output? (current-error-port))
|
||
colorize-store-file-name
|
||
identity))
|
||
|
||
(let*-values (((build/full download)
|
||
(derivation-build-plan store inputs
|
||
#:mode mode
|
||
#:substitutable-info
|
||
substitutable-info))
|
||
((graft hook build)
|
||
(match (fold (lambda (drv acc)
|
||
(let ((file (derivation-file-name drv)))
|
||
(match acc
|
||
((#:graft graft #:hook hook #:build build)
|
||
(cond
|
||
((graft-derivation? drv)
|
||
`(#:graft ,(cons file graft)
|
||
#:hook ,hook
|
||
#:build ,build))
|
||
((profile-hook-derivation? drv)
|
||
`(#:graft ,graft
|
||
#:hook ,(cons file hook)
|
||
#:build ,build))
|
||
(else
|
||
`(#:graft ,graft
|
||
#:hook ,hook
|
||
#:build ,(cons file build))))))))
|
||
'(#:graft () #:hook () #:build ())
|
||
build/full)
|
||
((#:graft graft #:hook hook #:build build)
|
||
(values graft hook build)))))
|
||
(define installed-size
|
||
(reduce + 0 (map substitutable-nar-size download)))
|
||
|
||
(define download-size
|
||
(/ (reduce + 0 (map substitutable-download-size download))
|
||
1e6))
|
||
|
||
(define display-download-size?
|
||
;; Sometimes narinfos lack information about the download size. Only
|
||
;; display when we have information for all of DOWNLOAD.
|
||
(not (any (compose zero? substitutable-download-size) download)))
|
||
|
||
(if dry-run?
|
||
(begin
|
||
(format (current-error-port)
|
||
(N_ "~:[The following derivation would be built:~%~{ ~a~%~}~;~]"
|
||
"~:[The following derivations would be built:~%~{ ~a~%~}~;~]"
|
||
(length build))
|
||
(null? build) (map colorized-store-item build))
|
||
(if display-download-size?
|
||
(format (current-error-port)
|
||
;; TRANSLATORS: "MB" is for "megabyte"; it should be
|
||
;; translated to the corresponding abbreviation.
|
||
(G_ "~:[~,1h MB would be downloaded:~%~{ ~a~%~}~;~]")
|
||
(null? download)
|
||
download-size
|
||
(map (compose colorized-store-item substitutable-path)
|
||
download))
|
||
(format (current-error-port)
|
||
(N_ "~:[The following file would be downloaded:~%~{ ~a~%~}~;~]"
|
||
"~:[The following files would be downloaded:~%~{ ~a~%~}~;~]"
|
||
(length download))
|
||
(null? download)
|
||
(map (compose colorized-store-item substitutable-path)
|
||
download)))
|
||
(format (current-error-port)
|
||
(N_ "~:[The following graft would be made:~%~{ ~a~%~}~;~]"
|
||
"~:[The following grafts would be made:~%~{ ~a~%~}~;~]"
|
||
(length graft))
|
||
(null? graft) (map colorized-store-item graft))
|
||
(format (current-error-port)
|
||
(N_ "~:[The following profile hook would be built:~%~{ ~a~%~}~;~]"
|
||
"~:[The following profile hooks would be built:~%~{ ~a~%~}~;~]"
|
||
(length hook))
|
||
(null? hook) (map colorized-store-item hook)))
|
||
(begin
|
||
(format (current-error-port)
|
||
(N_ "~:[The following derivation will be built:~%~{ ~a~%~}~;~]"
|
||
"~:[The following derivations will be built:~%~{ ~a~%~}~;~]"
|
||
(length build))
|
||
(null? build) (map colorized-store-item build))
|
||
(if display-download-size?
|
||
(format (current-error-port)
|
||
;; TRANSLATORS: "MB" is for "megabyte"; it should be
|
||
;; translated to the corresponding abbreviation.
|
||
(G_ "~:[~,1h MB will be downloaded:~%~{ ~a~%~}~;~]")
|
||
(null? download)
|
||
download-size
|
||
(map (compose colorized-store-item substitutable-path)
|
||
download))
|
||
(format (current-error-port)
|
||
(N_ "~:[The following file will be downloaded:~%~{ ~a~%~}~;~]"
|
||
"~:[The following files will be downloaded:~%~{ ~a~%~}~;~]"
|
||
(length download))
|
||
(null? download)
|
||
(map (compose colorized-store-item substitutable-path)
|
||
download)))
|
||
(format (current-error-port)
|
||
(N_ "~:[The following graft will be made:~%~{ ~a~%~}~;~]"
|
||
"~:[The following grafts will be made:~%~{ ~a~%~}~;~]"
|
||
(length graft))
|
||
(null? graft) (map colorized-store-item graft))
|
||
(format (current-error-port)
|
||
(N_ "~:[The following profile hook will be built:~%~{ ~a~%~}~;~]"
|
||
"~:[The following profile hooks will be built:~%~{ ~a~%~}~;~]"
|
||
(length hook))
|
||
(null? hook) (map colorized-store-item hook))))
|
||
|
||
(check-available-space installed-size)
|
||
|
||
(values (pair? build/full) (pair? download))))
|
||
|
||
(define show-what-to-build*
|
||
(store-lift show-what-to-build))
|
||
|
||
(define* (build-notifier #:key (dry-run? #f) (use-substitutes? #t))
|
||
"Return a procedure suitable for 'with-build-handler' that, when
|
||
'build-things' is called, invokes 'show-what-to-build' to display the build
|
||
plan. When DRY-RUN? is true, the 'with-build-handler' form returns without
|
||
any build happening."
|
||
(define not-comma
|
||
(char-set-complement (char-set #\,)))
|
||
|
||
(define (read-derivation-from-file* item)
|
||
(catch 'system-error
|
||
(lambda ()
|
||
(read-derivation-from-file item))
|
||
(const #f)))
|
||
|
||
(lambda (continue store things mode)
|
||
(define inputs
|
||
;; List of derivation inputs to build. Filter out non-existent '.drv'
|
||
;; files because the daemon transparently tries to substitute them.
|
||
(filter-map (match-lambda
|
||
(((? derivation-path? drv) . output)
|
||
(let ((drv (read-derivation-from-file* drv))
|
||
(outputs (string-tokenize output not-comma)))
|
||
(and drv (derivation-input drv outputs))))
|
||
((? derivation-path? drv)
|
||
(and=> (read-derivation-from-file* drv)
|
||
derivation-input))
|
||
(_
|
||
#f))
|
||
things))
|
||
|
||
(let-values (((build? download?)
|
||
(show-what-to-build store inputs
|
||
#:dry-run? dry-run?
|
||
#:use-substitutes? use-substitutes?
|
||
#:mode mode)))
|
||
|
||
(unless (and (or build? download?)
|
||
dry-run?)
|
||
(continue #t)))))
|
||
|
||
(define (right-arrow port)
|
||
"Return either a string containing the 'RIGHT ARROW' character, or an ASCII
|
||
replacement if PORT is not Unicode-capable."
|
||
(let ((encoding (port-encoding port))
|
||
(arrow "→"))
|
||
(catch 'encoding-error
|
||
(lambda ()
|
||
(call-with-output-string
|
||
(lambda (port)
|
||
(set-port-encoding! port encoding)
|
||
(set-port-conversion-strategy! port 'error)
|
||
(display arrow port))))
|
||
(lambda (key . args)
|
||
"->"))))
|
||
|
||
(define* (tabulate rows #:key (initial-indent 0) (max-width 25)
|
||
(inter-column " "))
|
||
"Return a list of strings where each string is a tabulated representation of
|
||
an element of ROWS. All the ROWS must be lists of the same number of cells.
|
||
|
||
Add INITIAL-INDENT white space at the beginning of each row. Ensure that
|
||
columns are at most MAX-WIDTH characters wide. Use INTER-COLUMN as a
|
||
separator between subsequent columns."
|
||
(define column-widths
|
||
;; List of column widths.
|
||
(let loop ((rows rows)
|
||
(widths '()))
|
||
(match rows
|
||
(((? null?) ...)
|
||
(reverse widths))
|
||
(((column rest ...) ...)
|
||
(loop rest
|
||
(cons (min (apply max (map string-length column))
|
||
max-width)
|
||
widths))))))
|
||
|
||
(define indent
|
||
(make-string initial-indent #\space))
|
||
|
||
(define (string-pad-right* str len)
|
||
(if (> (string-length str) len)
|
||
str
|
||
(string-pad-right str len)))
|
||
|
||
(map (lambda (row)
|
||
(string-trim-right
|
||
(string-append indent
|
||
(string-join
|
||
(map string-pad-right* row column-widths)
|
||
inter-column))))
|
||
rows))
|
||
|
||
(define* (show-manifest-transaction store manifest transaction
|
||
#:key dry-run?)
|
||
"Display what will/would be installed/removed from MANIFEST by TRANSACTION."
|
||
(define (package-strings names versions outputs)
|
||
(tabulate (zip (map (lambda (name output)
|
||
(if (string=? output "out")
|
||
name
|
||
(string-append name ":" output)))
|
||
names outputs)
|
||
versions)
|
||
#:initial-indent 3))
|
||
|
||
(define → ;an arrow that can be represented on stderr
|
||
(right-arrow (current-error-port)))
|
||
|
||
(define (upgrade-string names old-version new-version outputs)
|
||
(tabulate (zip (map (lambda (name output)
|
||
(if (string=? output "out")
|
||
name
|
||
(string-append name ":" output)))
|
||
names outputs)
|
||
(map (lambda (old new)
|
||
(if (string=? old new)
|
||
(G_ "(dependencies or package changed)")
|
||
(string-append old " " → " " new)))
|
||
old-version new-version))
|
||
#:initial-indent 3))
|
||
|
||
(let-values (((remove install upgrade downgrade)
|
||
(manifest-transaction-effects manifest transaction)))
|
||
(match remove
|
||
((($ <manifest-entry> name version output item) ..1)
|
||
(let ((len (length name))
|
||
(remove (package-strings name version output)))
|
||
(if dry-run?
|
||
(format (current-error-port)
|
||
(N_ "The following package would be removed:~%~{~a~%~}~%"
|
||
"The following packages would be removed:~%~{~a~%~}~%"
|
||
len)
|
||
remove)
|
||
(format (current-error-port)
|
||
(N_ "The following package will be removed:~%~{~a~%~}~%"
|
||
"The following packages will be removed:~%~{~a~%~}~%"
|
||
len)
|
||
remove))))
|
||
(x #f))
|
||
(match downgrade
|
||
(((($ <manifest-entry> name old-version)
|
||
. ($ <manifest-entry> _ new-version output item)) ..1)
|
||
(let ((len (length name))
|
||
(downgrade (upgrade-string name old-version new-version
|
||
output)))
|
||
(if dry-run?
|
||
(format (current-error-port)
|
||
(N_ "The following package would be downgraded:~%~{~a~%~}~%"
|
||
"The following packages would be downgraded:~%~{~a~%~}~%"
|
||
len)
|
||
downgrade)
|
||
(format (current-error-port)
|
||
(N_ "The following package will be downgraded:~%~{~a~%~}~%"
|
||
"The following packages will be downgraded:~%~{~a~%~}~%"
|
||
len)
|
||
downgrade))))
|
||
(x #f))
|
||
(match upgrade
|
||
(((($ <manifest-entry> name old-version)
|
||
. ($ <manifest-entry> _ new-version output item)) ..1)
|
||
(let ((len (length name))
|
||
(upgrade (upgrade-string name
|
||
old-version new-version
|
||
output)))
|
||
(if dry-run?
|
||
(format (current-error-port)
|
||
(N_ "The following package would be upgraded:~%~{~a~%~}~%"
|
||
"The following packages would be upgraded:~%~{~a~%~}~%"
|
||
len)
|
||
upgrade)
|
||
(format (current-error-port)
|
||
(N_ "The following package will be upgraded:~%~{~a~%~}~%"
|
||
"The following packages will be upgraded:~%~{~a~%~}~%"
|
||
len)
|
||
upgrade))))
|
||
(x #f))
|
||
(match install
|
||
((($ <manifest-entry> name version output item _) ..1)
|
||
(let ((len (length name))
|
||
(install (package-strings name version output)))
|
||
(if dry-run?
|
||
(format (current-error-port)
|
||
(N_ "The following package would be installed:~%~{~a~%~}~%"
|
||
"The following packages would be installed:~%~{~a~%~}~%"
|
||
len)
|
||
install)
|
||
(format (current-error-port)
|
||
(N_ "The following package will be installed:~%~{~a~%~}~%"
|
||
"The following packages will be installed:~%~{~a~%~}~%"
|
||
len)
|
||
install))))
|
||
(x #f))))
|
||
|
||
(define-syntax with-error-handling
|
||
(syntax-rules ()
|
||
"Run BODY within a user-friendly error condition handler."
|
||
((_ body ...)
|
||
(call-with-error-handling
|
||
(lambda ()
|
||
body ...)))))
|
||
|
||
(define* (indented-string str indent
|
||
#:key (initial-indent? #t))
|
||
"Return STR with each newline preceded by INDENT spaces. When
|
||
INITIAL-INDENT? is true, the first line is also indented."
|
||
(define indent-string
|
||
(make-list indent #\space))
|
||
|
||
(list->string
|
||
(string-fold-right (lambda (chr result)
|
||
(if (eqv? chr #\newline)
|
||
(cons chr (append indent-string result))
|
||
(cons chr result)))
|
||
'()
|
||
(if initial-indent?
|
||
(string-append (list->string indent-string) str)
|
||
str))))
|
||
|
||
(define* (fill-paragraph str width #:optional (column 0))
|
||
"Fill STR such that each line contains at most WIDTH characters, assuming
|
||
that the first character is at COLUMN.
|
||
|
||
When STR contains a single line break surrounded by other characters, it is
|
||
converted to a space; sequences of more than one line break are preserved."
|
||
(define (maybe-break chr result)
|
||
(match result
|
||
((column newlines chars)
|
||
(case chr
|
||
((#\newline)
|
||
`(,column ,(+ 1 newlines) ,chars))
|
||
(else
|
||
(let* ((spaces (if (and (pair? chars) (eqv? (car chars) #\.)) 2 1))
|
||
(chars (case newlines
|
||
((0) chars)
|
||
((1)
|
||
(append (make-list spaces #\space) chars))
|
||
(else
|
||
(append (make-list newlines #\newline) chars))))
|
||
(column (case newlines
|
||
((0) column)
|
||
((1) (+ spaces column))
|
||
(else 0))))
|
||
(let ((chars (cons chr chars))
|
||
(column (+ 1 column)))
|
||
(if (> column width)
|
||
(let*-values (((before after)
|
||
(break (cut eqv? #\space <>) chars))
|
||
((len)
|
||
(length before)))
|
||
(if (<= len width)
|
||
`(,len
|
||
0
|
||
,(if (null? after)
|
||
before
|
||
(append before
|
||
(cons #\newline
|
||
(drop-while (cut eqv? #\space <>)
|
||
after)))))
|
||
`(,column 0 ,chars))) ; unbreakable
|
||
`(,column 0 ,chars)))))))))
|
||
|
||
(match (string-fold maybe-break
|
||
`(,column 0 ())
|
||
str)
|
||
((column newlines chars)
|
||
(list->string (reverse chars)))))
|
||
|
||
|
||
;;;
|
||
;;; Packages.
|
||
;;;
|
||
|
||
(define %text-width
|
||
;; '*line-width*' was introduced in Guile 2.2.7/3.0.1. On older versions of
|
||
;; Guile, monkey-patch 'wrap*' below.
|
||
(if (defined? '*line-width*)
|
||
(let ((parameter (fluid->parameter *line-width*)))
|
||
(parameter (terminal-columns))
|
||
parameter)
|
||
(make-parameter (terminal-columns))))
|
||
|
||
(unless (defined? '*line-width*) ;Guile < 2.2.7
|
||
(set! (@@ (texinfo plain-text) wrap*)
|
||
;; XXX: Monkey patch this private procedure to let 'package->recutils'
|
||
;; parameterize the fill of description field correctly.
|
||
(lambda strings
|
||
(let ((indent (fluid-ref (@@ (texinfo plain-text) *indent*))))
|
||
(fill-string (string-concatenate strings)
|
||
#:line-width (%text-width) #:initial-indent indent
|
||
#:subsequent-indent indent)))))
|
||
|
||
(define (texi->plain-text str)
|
||
"Return a plain-text representation of texinfo fragment STR."
|
||
;; 'texi-fragment->stexi' uses a string port so make sure it's a
|
||
;; Unicode-capable one (see <http://bugs.gnu.org/11197>.)
|
||
(with-fluids ((%default-port-encoding "UTF-8"))
|
||
(stexi->plain-text (texi-fragment->stexi str))))
|
||
|
||
(define (package-field-string package field-accessor)
|
||
"Return a plain-text representation of PACKAGE field."
|
||
(and=> (field-accessor package)
|
||
(compose texi->plain-text P_)))
|
||
|
||
(define (package-description-string package)
|
||
"Return a plain-text representation of PACKAGE description field."
|
||
(package-field-string package package-description))
|
||
|
||
(define (package-synopsis-string package)
|
||
"Return a plain-text representation of PACKAGE synopsis field."
|
||
(package-field-string package package-synopsis))
|
||
|
||
(define (string->recutils str)
|
||
"Return a version of STR where newlines have been replaced by newlines
|
||
followed by \"+ \", which makes for a valid multi-line field value in the
|
||
`recutils' syntax."
|
||
(list->string
|
||
(string-fold-right (lambda (chr result)
|
||
(if (eqv? chr #\newline)
|
||
(cons* chr #\+ #\space result)
|
||
(cons chr result)))
|
||
'()
|
||
str)))
|
||
|
||
(define (hyperlink uri text)
|
||
"Return a string that denotes a hyperlink using an OSC escape sequence as
|
||
documented at
|
||
<https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda>."
|
||
(string-append "\x1b]8;;" uri "\x1b\\"
|
||
text "\x1b]8;;\x1b\\"))
|
||
|
||
(define* (supports-hyperlinks? #:optional (port (current-output-port)))
|
||
"Return true if PORT is a terminal that supports hyperlink escapes."
|
||
;; Note that terminals are supposed to ignore OSC escapes they don't
|
||
;; understand (this is the case of xterm as of version 349, for instance.)
|
||
;; However, Emacs comint as of 26.3 does not ignore it and instead lets it
|
||
;; through, hence the 'INSIDE_EMACS' special case below.
|
||
(and (isatty?* port)
|
||
(not (getenv "INSIDE_EMACS"))))
|
||
|
||
(define* (file-hyperlink file #:optional (text file))
|
||
"Return TEXT with escapes for a hyperlink to FILE."
|
||
(hyperlink (string-append "file://" (gethostname)
|
||
(encode-and-join-uri-path
|
||
(string-split file #\/)))
|
||
text))
|
||
|
||
(define (location->hyperlink location)
|
||
"Return a string corresponding to LOCATION, with escapes for a hyperlink."
|
||
(let ((str (location->string location))
|
||
(file (if (string-prefix? "/" (location-file location))
|
||
(location-file location)
|
||
(search-path %load-path (location-file location)))))
|
||
(if file
|
||
(file-hyperlink file str)
|
||
str)))
|
||
|
||
(define* (package->recutils p port #:optional (width (%text-width))
|
||
#:key
|
||
(hyperlinks? (supports-hyperlinks? port))
|
||
(extra-fields '()))
|
||
"Write to PORT a `recutils' record of package P, arranging to fit within
|
||
WIDTH columns. EXTRA-FIELDS is a list of symbol/value pairs to emit. When
|
||
HYPERLINKS? is true, emit hyperlink escape sequences when appropriate."
|
||
(define width*
|
||
;; The available number of columns once we've taken into account space for
|
||
;; the initial "+ " prefix.
|
||
(if (> width 2) (- width 2) width))
|
||
|
||
(define (dependencies->recutils packages)
|
||
(let ((list (string-join (delete-duplicates
|
||
(map package-full-name
|
||
(sort packages package<?))) " ")))
|
||
(string->recutils
|
||
(fill-paragraph list width*
|
||
(string-length "dependencies: ")))))
|
||
|
||
(define (package<? p1 p2)
|
||
(string<? (package-full-name p1) (package-full-name p2)))
|
||
|
||
;; Note: Don't i18n field names so that people can post-process it.
|
||
(format port "name: ~a~%" (package-name p))
|
||
(format port "version: ~a~%" (package-version p))
|
||
(format port "outputs: ~a~%" (string-join (package-outputs p)))
|
||
(format port "systems: ~a~%"
|
||
(string-join (package-transitive-supported-systems p)))
|
||
(format port "dependencies: ~a~%"
|
||
(match (package-direct-inputs p)
|
||
(((labels inputs . _) ...)
|
||
(dependencies->recutils (filter package? inputs)))))
|
||
(format port "location: ~a~%"
|
||
(or (and=> (package-location p)
|
||
(if hyperlinks? location->hyperlink location->string))
|
||
(G_ "unknown")))
|
||
|
||
;; Note: Starting from version 1.6 or recutils, hyphens are not allowed in
|
||
;; field identifiers.
|
||
(format port "homepage: ~a~%" (package-home-page p))
|
||
|
||
(format port "license: ~a~%"
|
||
(match (package-license p)
|
||
(((? license? licenses) ...)
|
||
(string-join (map license-name licenses)
|
||
", "))
|
||
((? license? license)
|
||
(let ((text (license-name license))
|
||
(uri (license-uri license)))
|
||
(if (and hyperlinks? uri (string-prefix? "http" uri))
|
||
(hyperlink uri text)
|
||
text)))
|
||
(x
|
||
(G_ "unknown"))))
|
||
(format port "synopsis: ~a~%"
|
||
(string-map (match-lambda
|
||
(#\newline #\space)
|
||
(chr chr))
|
||
(or (and=> (package-synopsis-string p) P_)
|
||
"")))
|
||
(format port "~a~%"
|
||
(string->recutils
|
||
(string-trim-right
|
||
(parameterize ((%text-width width*))
|
||
(texi->plain-text
|
||
(string-append "description: "
|
||
(or (and=> (package-description p) P_)
|
||
""))))
|
||
#\newline)))
|
||
(for-each (match-lambda
|
||
((field . value)
|
||
(let ((field (symbol->string field)))
|
||
(format port "~a: ~a~%"
|
||
field
|
||
(fill-paragraph (object->string value) width*
|
||
(string-length field))))))
|
||
extra-fields)
|
||
(newline port))
|
||
|
||
|
||
;;;
|
||
;;; Searching.
|
||
;;;
|
||
|
||
(define (relevance obj regexps metrics)
|
||
"Compute a \"relevance score\" for OBJ as a function of its number of
|
||
matches of REGEXPS and accordingly to METRICS. METRICS is list of
|
||
field/weight pairs, where FIELD is a procedure that returns a string or list
|
||
of strings describing OBJ, and WEIGHT is a positive integer denoting the
|
||
weight of this field in the final score.
|
||
|
||
A score of zero means that OBJ does not match any of REGEXPS. The higher the
|
||
score, the more relevant OBJ is to REGEXPS."
|
||
(define (score regexp str)
|
||
(fold-matches regexp str 0
|
||
(lambda (m score)
|
||
(+ score
|
||
(if (string=? (match:substring m) str)
|
||
5 ;exact match
|
||
1)))))
|
||
|
||
(define (regexp->score regexp)
|
||
(let ((score-regexp (lambda (str) (score regexp str))))
|
||
(fold (lambda (metric relevance)
|
||
(match metric
|
||
((field . weight)
|
||
(match (field obj)
|
||
(#f relevance)
|
||
((? string? str)
|
||
(+ relevance (* (score-regexp str) weight)))
|
||
((lst ...)
|
||
(+ relevance (* weight (apply + (map score-regexp lst)))))))))
|
||
0 metrics)))
|
||
|
||
(let ((scores (map regexp->score regexps)))
|
||
;; Return zero if one of REGEXPS doesn't match.
|
||
(if (any zero? scores)
|
||
0
|
||
(reduce + 0 scores))))
|
||
|
||
(define %package-metrics
|
||
;; Metrics used to compute the "relevance score" of a package against a set
|
||
;; of regexps.
|
||
`((,package-name . 4)
|
||
|
||
;; Match against uncommon outputs.
|
||
(,(lambda (package)
|
||
(filter (lambda (output)
|
||
(not (member output
|
||
;; Some common outputs shared by many packages.
|
||
'("out" "doc" "debug" "lib" "include" "bin"))))
|
||
(package-outputs package)))
|
||
. 1)
|
||
|
||
;; Match regexps on the raw Texinfo since formatting it is quite expensive
|
||
;; and doesn't have much of an effect on search results.
|
||
(,(lambda (package)
|
||
(and=> (package-synopsis package) P_)) . 3)
|
||
(,(lambda (package)
|
||
(and=> (package-description package) P_)) . 2)
|
||
|
||
(,(lambda (type)
|
||
(match (and=> (package-location type) location-file)
|
||
((? string? file) (basename file ".scm"))
|
||
(#f "")))
|
||
. 1)))
|
||
|
||
(define (package-relevance package regexps)
|
||
"Return a score denoting the relevance of PACKAGE for REGEXPS. A score of
|
||
zero means that PACKAGE does not match any of REGEXPS."
|
||
(relevance package regexps %package-metrics))
|
||
|
||
(define* (display-search-results matches port
|
||
#:key
|
||
(command "guix search")
|
||
(print package->recutils))
|
||
"Display MATCHES, a list of object/score pairs, by calling PRINT on each of
|
||
them. If PORT is a terminal, print at most a full screen of results."
|
||
(define first-line
|
||
(port-line port))
|
||
|
||
(define max-rows
|
||
(and first-line (isatty? port)
|
||
(terminal-rows port)))
|
||
|
||
(define (line-count str)
|
||
(string-count str #\newline))
|
||
|
||
(let loop ((matches matches))
|
||
(match matches
|
||
(((package . score) rest ...)
|
||
(let* ((links? (supports-hyperlinks? port))
|
||
(text (call-with-output-string
|
||
(lambda (port)
|
||
(print package port
|
||
#:hyperlinks? links?
|
||
#:extra-fields
|
||
`((relevance . ,score)))))))
|
||
(if (and (not (getenv "INSIDE_EMACS"))
|
||
max-rows
|
||
(> (port-line port) first-line) ;print at least one result
|
||
(> (+ 4 (line-count text) (port-line port))
|
||
max-rows))
|
||
(unless (null? rest)
|
||
(display-hint (format #f (G_ "Run @code{~a ... | less} \
|
||
to view all the results.")
|
||
command)))
|
||
(begin
|
||
(display text port)
|
||
(loop rest)))))
|
||
(()
|
||
#t))))
|
||
|
||
|
||
(define (string->generations str)
|
||
"Return the list of generations matching a pattern in STR. This function
|
||
accepts the following patterns: \"1\", \"1,2,3\", \"1..9\", \"1..\", \"..9\"."
|
||
(define (maybe-integer)
|
||
(let ((x (string->number str)))
|
||
(and (integer? x)
|
||
x)))
|
||
|
||
(define (maybe-comma-separated-integers)
|
||
(let ((lst (delete-duplicates
|
||
(map string->number
|
||
(string-split str #\,)))))
|
||
(and (every integer? lst)
|
||
lst)))
|
||
|
||
(cond ((maybe-integer)
|
||
=>
|
||
list)
|
||
((maybe-comma-separated-integers)
|
||
=>
|
||
identity)
|
||
((string-match "^([0-9]+)\\.\\.([0-9]+)$" str)
|
||
=>
|
||
(lambda (match)
|
||
(let ((s (string->number (match:substring match 1)))
|
||
(e (string->number (match:substring match 2))))
|
||
(and (every integer? (list s e))
|
||
(<= s e)
|
||
(iota (1+ (- e s)) s)))))
|
||
((string-match "^([0-9]+)\\.\\.$" str)
|
||
=>
|
||
(lambda (match)
|
||
(let ((s (string->number (match:substring match 1))))
|
||
(and (integer? s)
|
||
`(>= ,s)))))
|
||
((string-match "^\\.\\.([0-9]+)$" str)
|
||
=>
|
||
(lambda (match)
|
||
(let ((e (string->number (match:substring match 1))))
|
||
(and (integer? e)
|
||
`(<= ,e)))))
|
||
(else #f)))
|
||
|
||
(define (string->duration str)
|
||
"Return the duration matching a pattern in STR. This function accepts the
|
||
following patterns: \"1d\", \"1w\", \"1m\"."
|
||
(define (hours->duration hours match)
|
||
(make-time time-duration 0
|
||
(* 3600 hours (string->number (match:substring match 1)))))
|
||
|
||
(cond ((string-match "^([0-9]+)s$" str)
|
||
=>
|
||
(lambda (match)
|
||
(make-time time-duration 0
|
||
(string->number (match:substring match 1)))))
|
||
((string-match "^([0-9]+)h$" str)
|
||
=>
|
||
(lambda (match)
|
||
(hours->duration 1 match)))
|
||
((string-match "^([0-9]+)d$" str)
|
||
=>
|
||
(lambda (match)
|
||
(hours->duration 24 match)))
|
||
((string-match "^([0-9]+)w$" str)
|
||
=>
|
||
(lambda (match)
|
||
(hours->duration (* 24 7) match)))
|
||
((string-match "^([0-9]+)m$" str)
|
||
=>
|
||
(lambda (match)
|
||
(hours->duration (* 24 30) match)))
|
||
(else #f)))
|
||
|
||
(define* (matching-generations str profile
|
||
#:key (duration-relation <=))
|
||
"Return the list of available generations matching a pattern in STR. See
|
||
'string->generations' and 'string->duration' for the list of valid patterns.
|
||
When STR is a duration pattern, return all the generations whose ctime has
|
||
DURATION-RELATION with the current time."
|
||
(define (valid-generations lst)
|
||
(define (valid-generation? n)
|
||
(any (cut = n <>) (generation-numbers profile)))
|
||
|
||
(fold-right (lambda (x acc)
|
||
(if (valid-generation? x)
|
||
(cons x acc)
|
||
acc))
|
||
'()
|
||
lst))
|
||
|
||
(define (filter-generations generations)
|
||
(match generations
|
||
(() '())
|
||
(('>= n)
|
||
(drop-while (cut > n <>)
|
||
(generation-numbers profile)))
|
||
(('<= n)
|
||
(valid-generations (iota n 1)))
|
||
((lst ..1)
|
||
(valid-generations lst))
|
||
(x #f)))
|
||
|
||
(define (filter-by-duration duration)
|
||
(define (time-at-midnight time)
|
||
;; Return TIME at midnight by setting nanoseconds, seconds, minutes, and
|
||
;; hours to zeros.
|
||
(let ((d (time-utc->date time)))
|
||
(date->time-utc
|
||
(make-date 0 0 0 0
|
||
(date-day d) (date-month d)
|
||
(date-year d) (date-zone-offset d)))))
|
||
|
||
(define generation-ctime-alist
|
||
(map (lambda (number)
|
||
(cons number
|
||
(time-second
|
||
(time-at-midnight
|
||
(generation-time profile number)))))
|
||
(generation-numbers profile)))
|
||
|
||
(match duration
|
||
(#f #f)
|
||
(res
|
||
(let ((s (time-second
|
||
(subtract-duration (time-at-midnight (current-time))
|
||
duration))))
|
||
(delete #f (map (lambda (x)
|
||
(and (duration-relation s (cdr x))
|
||
(first x)))
|
||
generation-ctime-alist))))))
|
||
|
||
(cond ((string->generations str)
|
||
=>
|
||
filter-generations)
|
||
((string->duration str)
|
||
=>
|
||
filter-by-duration)
|
||
(else
|
||
(raise
|
||
(condition (&message
|
||
(message (format #f (G_ "invalid syntax: ~a~%")
|
||
str))))))))
|
||
|
||
(define (display-generation profile number)
|
||
"Display a one-line summary of generation NUMBER of PROFILE."
|
||
(unless (zero? number)
|
||
(let* ((file (generation-file-name profile number))
|
||
(link (if (supports-hyperlinks?)
|
||
(cut file-hyperlink file <>)
|
||
identity))
|
||
(header (format #f (link (highlight (G_ "Generation ~a\t~a")))
|
||
number
|
||
(date->string
|
||
(time-utc->date
|
||
(generation-time profile number))
|
||
;; TRANSLATORS: This is a format-string for date->string.
|
||
;; Please choose a format that corresponds to the
|
||
;; usual way of presenting dates in your locale.
|
||
;; See https://www.gnu.org/software/guile/manual/html_node/SRFI_002d19-Date-to-string.html
|
||
;; for details.
|
||
(G_ "~b ~d ~Y ~T"))))
|
||
(current (generation-number profile)))
|
||
(if (= number current)
|
||
;; TRANSLATORS: The word "current" here is an adjective for
|
||
;; "Generation", as in "current generation". Use the appropriate
|
||
;; gender where applicable.
|
||
(format #t (G_ "~a\t(current)~%") header)
|
||
(format #t "~a~%" header)))))
|
||
|
||
(define (display-profile-content-diff profile gen1 gen2)
|
||
"Display the changed packages in PROFILE GEN2 compared to generation GEN1."
|
||
|
||
(define (equal-entry? first second)
|
||
(string= (manifest-entry-item first) (manifest-entry-item second)))
|
||
|
||
(define (display-entry entry prefix)
|
||
(match entry
|
||
(($ <manifest-entry> name version output location _)
|
||
(format #t " ~a ~a\t~a\t~a\t~a~%" prefix name version output location))))
|
||
|
||
(define (list-entries number)
|
||
(manifest-entries (profile-manifest (generation-file-name profile number))))
|
||
|
||
(define (display-diff profile old new)
|
||
(display-generation profile new)
|
||
(let ((added (lset-difference
|
||
equal-entry? (list-entries new) (list-entries old)))
|
||
(removed (lset-difference
|
||
equal-entry? (list-entries old) (list-entries new))))
|
||
(for-each (cut display-entry <> "+") added)
|
||
(for-each (cut display-entry <> "-") removed)
|
||
(newline)))
|
||
|
||
(display-diff profile gen1 gen2))
|
||
|
||
(define (profile-lock-handler profile errno . _)
|
||
"Handle failure to acquire PROFILE's lock."
|
||
;; NFS mounts can return ENOLCK. When that happens, there's not much that
|
||
;; can be done, so warn the user and keep going.
|
||
(if (= errno ENOLCK)
|
||
(warning (G_ "cannot lock profile ~a: ~a~%")
|
||
profile (strerror errno))
|
||
(leave (G_ "profile ~a is locked by another process~%")
|
||
profile)))
|
||
|
||
(define profile-lock-file
|
||
(cut string-append <> ".lock"))
|
||
|
||
(define-syntax-rule (with-profile-lock profile exp ...)
|
||
"Grab PROFILE's lock and evaluate EXP... Call 'leave' if the lock is
|
||
already taken."
|
||
(with-file-lock/no-wait (profile-lock-file profile)
|
||
(cut profile-lock-handler profile <...>)
|
||
exp ...))
|
||
|
||
(define (display-profile-content profile number)
|
||
"Display the packages in PROFILE, generation NUMBER, in a human-readable
|
||
way."
|
||
(for-each (match-lambda
|
||
(($ <manifest-entry> name version output location _)
|
||
(format #t " ~a\t~a\t~a\t~a~%"
|
||
name version output location)))
|
||
|
||
;; Show most recently installed packages last.
|
||
(reverse
|
||
(manifest-entries
|
||
(profile-manifest (generation-file-name profile number))))))
|
||
|
||
(define (display-generation-change previous current)
|
||
(format #t (G_ "switched from generation ~a to ~a~%") previous current))
|
||
|
||
(define (roll-back* store profile)
|
||
"Like 'roll-back', but display what is happening."
|
||
(call-with-values
|
||
(lambda ()
|
||
(roll-back store profile))
|
||
display-generation-change))
|
||
|
||
(define (switch-to-generation* profile number)
|
||
"Like 'switch-generation', but display what is happening."
|
||
(let ((previous (switch-to-generation profile number)))
|
||
(display-generation-change previous number)))
|
||
|
||
(define (delete-generation* store profile generation)
|
||
"Like 'delete-generation', but display what is going on."
|
||
(format #t (G_ "deleting ~a~%")
|
||
(generation-file-name profile generation))
|
||
(delete-generation store profile generation))
|
||
|
||
(define* (package-specification->name+version+output spec
|
||
#:optional (output "out"))
|
||
"Parse package specification SPEC and return three value: the specified
|
||
package name, version number (or #f), and output name (or OUTPUT). SPEC may
|
||
optionally contain a version number and an output name, as in these examples:
|
||
|
||
guile
|
||
guile@2.0.9
|
||
guile:debug
|
||
guile@2.0.9:debug
|
||
"
|
||
(let*-values (((name sub-drv)
|
||
(match (string-rindex spec #\:)
|
||
(#f (values spec output))
|
||
(colon (values (substring spec 0 colon)
|
||
(substring spec (+ 1 colon))))))
|
||
((name version)
|
||
(package-name->name+version name)))
|
||
(values name version sub-drv)))
|
||
|
||
|
||
;;;
|
||
;;; Command-line option processing.
|
||
;;;
|
||
|
||
(define (show-guix-usage)
|
||
(format (current-error-port)
|
||
(G_ "Try `guix --help' for more information.~%"))
|
||
(exit 1))
|
||
|
||
(define (command-files)
|
||
"Return the list of source files that define Guix sub-commands."
|
||
(define directory
|
||
(and=> (search-path %load-path "guix.scm")
|
||
(compose (cut string-append <> "/guix/scripts")
|
||
dirname)))
|
||
|
||
(define dot-scm?
|
||
(cut string-suffix? ".scm" <>))
|
||
|
||
(if directory
|
||
(scandir directory dot-scm?)
|
||
'()))
|
||
|
||
(define (commands)
|
||
"Return the list of Guix command names."
|
||
(map (compose (cut string-drop-right <> 4)
|
||
basename)
|
||
(command-files)))
|
||
|
||
(define (show-guix-help)
|
||
(define (internal? command)
|
||
(member command '("substitute" "authenticate" "offload"
|
||
"perform-download")))
|
||
|
||
(format #t (G_ "Usage: guix COMMAND ARGS...
|
||
Run COMMAND with ARGS.\n"))
|
||
(newline)
|
||
(format #t (G_ "COMMAND must be one of the sub-commands listed below:\n"))
|
||
(newline)
|
||
;; TODO: Display a synopsis of each command.
|
||
(format #t "~{ ~a~%~}" (sort (remove internal? (commands))
|
||
string<?))
|
||
(show-bug-report-information))
|
||
|
||
(define (run-guix-command command . args)
|
||
"Run COMMAND with the given ARGS. Report an error when COMMAND is not
|
||
found."
|
||
(define module
|
||
(catch 'misc-error
|
||
(lambda ()
|
||
(resolve-interface `(guix scripts ,command)))
|
||
(lambda -
|
||
(format (current-error-port)
|
||
(G_ "guix: ~a: command not found~%") command)
|
||
(show-guix-usage))))
|
||
|
||
(let ((command-main (module-ref module
|
||
(symbol-append 'guix- command))))
|
||
(parameterize ((program-name command))
|
||
;; Disable canonicalization so we don't don't stat unreasonably.
|
||
(with-fluids ((%file-port-name-canonicalization #f))
|
||
(dynamic-wind
|
||
(const #f)
|
||
(lambda ()
|
||
(apply command-main args))
|
||
(lambda ()
|
||
;; Abuse 'exit-hook' (which is normally meant to be used by the
|
||
;; REPL) to run things like profiling hooks upon completion.
|
||
(run-hook exit-hook)))))))
|
||
|
||
(define (run-guix . args)
|
||
"Run the 'guix' command defined by command line ARGS.
|
||
Unlike 'guix-main', this procedure assumes that locale, i18n support,
|
||
and signal handling have already been set up."
|
||
(define option? (cut string-prefix? "-" <>))
|
||
|
||
;; The default %LOAD-EXTENSIONS includes the empty string, which doubles the
|
||
;; number of 'stat' calls per entry in %LOAD-PATH. Shamelessly remove it.
|
||
(set! %load-extensions '(".scm"))
|
||
|
||
(match args
|
||
(()
|
||
(format (current-error-port)
|
||
(G_ "guix: missing command name~%"))
|
||
(show-guix-usage))
|
||
((or ("-h") ("--help"))
|
||
(show-guix-help))
|
||
((or ("-V") ("--version"))
|
||
(show-version-and-exit "guix"))
|
||
(((? option? o) args ...)
|
||
(format (current-error-port)
|
||
(G_ "guix: unrecognized option '~a'~%") o)
|
||
(show-guix-usage))
|
||
(("help" command)
|
||
(apply run-guix-command (string->symbol command)
|
||
'("--help")))
|
||
(("help" args ...)
|
||
(show-guix-help))
|
||
((command args ...)
|
||
(apply run-guix-command
|
||
(string->symbol command)
|
||
args))))
|
||
|
||
(define (guix-main arg0 . args)
|
||
(initialize-guix)
|
||
(apply run-guix args))
|
||
|
||
;;; ui.scm ends here
|