1422 lines
55 KiB
Scheme
1422 lines
55 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
||
;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2013 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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||
;;;
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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 gexp)
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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 combinators)
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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) #:select (license? license-name))
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#:use-module ((guix build syscalls)
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#:select (free-disk-space terminal-columns))
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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 repl repl) (start-repl)
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#:autoload (system repl debug) (make-debug stack->vector)
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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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#:export (G_
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N_
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P_
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report-error
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leave
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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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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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||
leave-on-EPIPE
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||
read/eval
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||
read/eval-package-expression
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||
location->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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relevance
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||
package-relevance
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||
string->generations
|
||
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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||
run-guix-command
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||
run-guix
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||
program-name
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guix-warning-port
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warning
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info
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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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||
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||
(define %gettext-domain
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||
;; Text domain for strings used in the tools.
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||
"guix")
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||
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(define %package-text-domain
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;; Text domain for package synopses and descriptions.
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"guix-packages")
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||
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(define G_ (cut gettext <> %gettext-domain))
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(define N_ (cut ngettext <> <> <> %gettext-domain))
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(define (P_ msgid)
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"Return the translation of the package description or synopsis MSGID."
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||
;; Descriptions/synopses might occasionally be empty strings, even if that
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;; is something we try to avoid. Since (gettext "") can return a non-empty
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;; string, explicitly check for that case.
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||
(if (string-null? msgid)
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||
msgid
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(gettext msgid %package-text-domain)))
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||
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||
(define-syntax-rule (define-diagnostic name prefix)
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||
"Create a diagnostic macro (i.e., NAME), which will prepend PREFIX to all
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||
messages."
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||
(define-syntax name
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||
(lambda (x)
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||
(define (augmented-format-string fmt)
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(string-append "~:[~*~;guix ~a: ~]~a" (syntax->datum fmt)))
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||
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||
(syntax-case x ()
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||
((name (underscore fmt) args (... ...))
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||
(and (string? (syntax->datum #'fmt))
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(free-identifier=? #'underscore #'G_))
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(with-syntax ((fmt* (augmented-format-string #'fmt))
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(prefix (datum->syntax x prefix)))
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||
#'(format (guix-warning-port) (gettext fmt*)
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||
(program-name) (program-name) prefix
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||
args (... ...))))
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||
((name (N-underscore singular plural n) args (... ...))
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||
(and (string? (syntax->datum #'singular))
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(string? (syntax->datum #'plural))
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||
(free-identifier=? #'N-underscore #'N_))
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(with-syntax ((s (augmented-format-string #'singular))
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(p (augmented-format-string #'plural))
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||
(prefix (datum->syntax x prefix)))
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||
#'(format (guix-warning-port)
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||
(ngettext s p n %gettext-domain)
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(program-name) (program-name) prefix
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||
args (... ...))))))))
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||
|
||
(define-diagnostic warning "warning: ") ; emit a warning
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||
(define-diagnostic info "")
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||
(define-diagnostic report-error "error: ")
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||
(define-syntax-rule (leave args ...)
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||
"Emit an error message and exit."
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||
(begin
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||
(report-error args ...)
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||
(exit 1)))
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||
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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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||
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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 (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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||
(if (frame-source frame)
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||
frame
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||
(loop (frame-previous frame) frame)))))
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||
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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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||
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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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||
(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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||
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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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||
;; 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 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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||
(depth (stack-length stack))
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||
(last (and (> depth 0) (stack-ref stack 0)))
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||
(frame (frame-with-source
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||
(if (> depth 1)
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||
(stack-ref stack 1) ;skip the 'throw' frame
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||
last))))
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||
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||
(report-load-error file args frame)
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||
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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))))))
|
||
|
||
(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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||
(('syntax-error proc message properties form . rest)
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||
(let ((loc (source-properties->location properties)))
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||
(format (current-error-port) (G_ "~a: error: ~a~%")
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||
(location->string loc) message)))
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||
(('srfi-34 obj)
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||
(if (message-condition? obj)
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||
(report-error (G_ "~a~%")
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(gettext (condition-message obj)
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||
%gettext-domain))
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||
(report-error (G_ "exception thrown: ~s~%") obj)))
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||
((error args ...)
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||
(report-error (G_ "failed to load '~a':~%") file)
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(apply display-error frame (current-error-port) args))))
|
||
|
||
(define (warn-about-load-error file args) ;FIXME: factorize with ↑
|
||
"Report the failure to load FILE, a user-provided Scheme file, without
|
||
exiting. ARGS is the list of arguments received by the 'throw' handler."
|
||
(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~%") file (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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(format (current-error-port) (G_ "~a: warning: ~a~%")
|
||
(location->string loc) message)))
|
||
(('srfi-34 obj)
|
||
(if (message-condition? obj)
|
||
(warning (G_ "failed to load '~a': ~a~%")
|
||
file
|
||
(gettext (condition-message obj) %gettext-domain))
|
||
(warning (G_ "failed to load '~a': exception thrown: ~s~%")
|
||
file obj)))
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||
((error args ...)
|
||
(warning (G_ "failed to load '~a':~%") file)
|
||
(apply display-error #f (current-error-port) args))))
|
||
|
||
(define (install-locale)
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||
"Install the current locale settings."
|
||
(catch 'system-error
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||
(lambda _
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||
(setlocale LC_ALL ""))
|
||
(lambda args
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||
(warning (G_ "failed to install locale: ~a~%")
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||
(strerror (system-error-errno args))))))
|
||
|
||
(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")
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||
(debug-disable 'warn-deprecated))
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||
|
||
(install-locale)
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||
(textdomain %gettext-domain)
|
||
|
||
;; Ignore SIGPIPE. If the daemon closes the connection, we prefer to be
|
||
;; notified via an EPIPE later.
|
||
(sigaction SIGPIPE SIG_IGN)
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||
|
||
(setvbuf (current-output-port) _IOLBF)
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||
(setvbuf (current-error-port) _IOLBF))
|
||
|
||
(define* (show-version-and-exit #:optional (command (car (command-line))))
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||
"Display version information for COMMAND and `(exit 0)'."
|
||
(simple-format #t "~a (~a) ~a~%"
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||
command %guix-package-name %guix-version)
|
||
(format #t "Copyright ~a 2017 ~a"
|
||
;; TRANSLATORS: Translate "(C)" to the copyright symbol
|
||
;; (C-in-a-circle), if this symbol is available in the user's
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||
;; locale. Otherwise, do not translate "(C)"; leave it as-is. */
|
||
(G_ "(C)")
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||
(G_ "the Guix authors\n"))
|
||
(display (G_"\
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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.
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||
There is NO WARRANTY, to the extent permitted by law.
|
||
"))
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||
(exit 0))
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||
|
||
(define (show-bug-report-information)
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||
;; 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_ "
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||
Report bugs to: ~a.") %guix-bug-report-address)
|
||
(format #t (G_ "
|
||
~a home page: <~a>") %guix-package-name %guix-home-page-url)
|
||
(display (G_ "
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||
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-rule (error-reporting-wrapper proc (args ...) file)
|
||
"Wrap PROC such that its 'system-error' exceptions are augmented to mention
|
||
FILE."
|
||
(let ((real-proc (@ (guile) proc)))
|
||
(lambda (args ...)
|
||
(catch 'system-error
|
||
(lambda ()
|
||
(real-proc args ...))
|
||
(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))
|
||
|
||
|
||
(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: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 (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)))
|
||
((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))))
|
||
|
||
(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)
|
||
(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)))))
|
||
((nix-connection-error? c)
|
||
(leave (G_ "failed to connect to `~a': ~a~%")
|
||
(nix-connection-error-file c)
|
||
(strerror (nix-connection-error-code c))))
|
||
((nix-protocol-error? c)
|
||
;; FIXME: Server-provided error messages aren't i18n'd.
|
||
(leave (G_ "build failed: ~a~%")
|
||
(nix-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)))
|
||
((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 when 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))
|
||
(('srfi-34 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."
|
||
(format #t "~{~a~%~}"
|
||
(map (match-lambda
|
||
((out-name . out)
|
||
(derivation->output-path derivation out-name)))
|
||
(derivation-outputs derivation))))
|
||
|
||
(define (check-available-space need)
|
||
"Make sure at least NEED bytes are available in the store. Otherwise emit a
|
||
warning."
|
||
(let ((free (catch 'system-error
|
||
(lambda ()
|
||
(free-disk-space (%store-prefix)))
|
||
(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) (%store-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. Return #t if
|
||
there's something to build, #f otherwise. When USE-SUBSTITUTES?, check and
|
||
report what is prerequisites are available for download."
|
||
(define substitutable-info
|
||
;; Call 'substitutation-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 drv #:mode mode)
|
||
(const #f)))
|
||
|
||
(define (built-or-substitutable? drv)
|
||
(or (null? (derivation-outputs drv))
|
||
(let ((out (derivation->output-path drv))) ;XXX: assume "out" exists
|
||
(or (valid-path? store out)
|
||
(substitutable-info out)))))
|
||
|
||
(let*-values (((build download)
|
||
(fold2 (lambda (drv build download)
|
||
(let-values (((b d)
|
||
(derivation-prerequisites-to-build
|
||
store drv
|
||
#:mode mode
|
||
#:substitutable-info
|
||
substitutable-info)))
|
||
(values (append b build)
|
||
(append d download))))
|
||
'() '()
|
||
drv))
|
||
((build) ; add the DRV themselves
|
||
(delete-duplicates
|
||
(append (map derivation-file-name
|
||
(remove built-or-substitutable? drv))
|
||
(map derivation-input-path build))))
|
||
((download) ; add the references of DOWNLOAD
|
||
(if use-substitutes?
|
||
(delete-duplicates
|
||
(append download
|
||
(filter-map (lambda (item)
|
||
(if (valid-path? store item)
|
||
#f
|
||
(substitutable-info item)))
|
||
(append-map
|
||
substitutable-references
|
||
download))))
|
||
download)))
|
||
(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) 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 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 substitutable-path download))))
|
||
(begin
|
||
(format (current-error-port)
|
||
(N_ "~:[The following derivation will be built:~%~{ ~a~%~}~;~]"
|
||
"~:[The following derivations will be built:~%~{ ~a~%~}~;~]"
|
||
(length build))
|
||
(null? build) 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 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 substitutable-path download)))))
|
||
|
||
(check-available-space installed-size)
|
||
|
||
(pair? build)))
|
||
|
||
(define show-what-to-build*
|
||
(store-lift show-what-to-build))
|
||
|
||
(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* (show-manifest-transaction store manifest transaction
|
||
#:key dry-run?)
|
||
"Display what will/would be installed/removed from MANIFEST by TRANSACTION."
|
||
(define (package-strings name version output item)
|
||
(map (lambda (name version output item)
|
||
(format #f " ~a~:[:~a~;~*~]\t~a\t~a"
|
||
name
|
||
(equal? output "out") output version
|
||
(if (package? item)
|
||
(package-output store item output)
|
||
item)))
|
||
name version output item))
|
||
|
||
(define → ;an arrow that can be represented on stderr
|
||
(right-arrow (current-error-port)))
|
||
|
||
(define (upgrade-string name old-version new-version output item)
|
||
(format #f " ~a~:[:~a~;~*~]\t~a ~a ~a\t~a"
|
||
name (equal? output "out") output
|
||
old-version → new-version
|
||
(if (package? item)
|
||
(package-output store item output)
|
||
item)))
|
||
|
||
(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 item)))
|
||
(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 (map upgrade-string
|
||
name old-version new-version output item)))
|
||
(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 (map upgrade-string
|
||
name old-version new-version output item)))
|
||
(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 item)))
|
||
(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 (location->string loc)
|
||
"Return a human-friendly, GNU-standard representation of LOC."
|
||
(match loc
|
||
(#f (G_ "<unknown location>"))
|
||
(($ <location> file line column)
|
||
(format #f "~a:~a:~a" file line column))))
|
||
|
||
(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
|
||
(make-parameter (terminal-columns)))
|
||
|
||
(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* (package->recutils p port #:optional (width (%text-width))
|
||
#:key (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."
|
||
(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) 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)
|
||
(license-name license))
|
||
(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))
|
||
|
||
(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
|
||
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 str)
|
||
(let ((counts (filter-map (lambda (regexp)
|
||
(match (regexp-exec regexp str)
|
||
(#f #f)
|
||
(m (match:count m))))
|
||
regexps)))
|
||
;; Compute a score that's proportional to the number of regexps matched
|
||
;; and to the number of matches for each regexp.
|
||
(* (length counts) (reduce + 0 counts))))
|
||
|
||
(fold (lambda (metric relevance)
|
||
(match metric
|
||
((field . weight)
|
||
(match (field obj)
|
||
(#f relevance)
|
||
(str (+ relevance
|
||
(* (score str) weight)))))))
|
||
0
|
||
metrics))
|
||
|
||
(define %package-metrics
|
||
;; Metrics used to compute the "relevance score" of a package against a set
|
||
;; of regexps.
|
||
`((,package-name . 3)
|
||
(,package-synopsis-string . 2)
|
||
(,package-description-string . 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 (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 #f)))
|
||
|
||
(define (display-generation profile number)
|
||
"Display a one-line summary of generation NUMBER of PROFILE."
|
||
(unless (zero? number)
|
||
(let ((header (format #f (G_ "Generation ~a\t~a") number
|
||
(date->string
|
||
(time-utc->date
|
||
(generation-time profile number))
|
||
"~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 GEN2."
|
||
|
||
(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 (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 program-name
|
||
;; Name of the command-line program currently executing, or #f.
|
||
(make-parameter #f))
|
||
|
||
(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 has 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))
|
||
(("--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-warning-port
|
||
(make-parameter (current-warning-port)))
|
||
|
||
(define (guix-main arg0 . args)
|
||
(initialize-guix)
|
||
(apply run-guix args))
|
||
|
||
;;; ui.scm ends here
|