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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2022 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix scripts manifest)
#:use-module (guix ui)
#:use-module ((guix diagnostics) #:select (location))
#:use-module (guix scripts environment)
#:use-module (guix transformations)
#:use-module (guix scripts)
#:use-module (guix packages)
#:use-module (guix profiles)
#:autoload (gnu packages) (specifications->manifest
specification->package
package-unique-version-prefix)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-37)
#:use-module (srfi srfi-71)
#:use-module (ice-9 match)
#:autoload (ice-9 pretty-print) (pretty-print)
#:export (guix-manifest))
(define (show-help)
(display (G_ "Usage: guix manifest [OPTION] SPECS...
Print a manifest corresponding to the given package SPECS.\n"))
(newline)
(display (G_ "
-D, --development include the development inputs of the next package"))
(display (G_ "
-m, --manifest=FILE create environment with the manifest from FILE"))
(newline)
(show-transformation-options-help)
(newline)
(display (G_ "
-h, --help display this help and exit"))
(display (G_ "
-V, --version display version information and exit"))
(newline)
(show-bug-report-information))
(define %options
;; Specification of the command-line options.
(cons* (option '(#\h "help") #f #f
(lambda args
(show-help)
(exit 0)))
(option '(#\V "version") #f #f
(lambda args
(show-version-and-exit "guix manifest")))
(option '(#\D "development") #f #f
(lambda (opt name arg result)
(alist-cons 'development? #t result)))
(option '(#\m "manifest") #t #f
(lambda (opt name arg result)
(alist-cons 'manifest arg result)))
%transformation-options))
(define %default-options
;; Default option alist.
'())
(define (load-manifest file) ;TODO: factorize
"Load the user-profile manifest (Scheme code) from FILE and return it."
(let ((user-module (make-user-module '((guix profiles) (gnu)))))
(load* file user-module)))
(define (manifest-entry-version-prefix entry)
"Search among all the versions of ENTRY's package that are available, and
return the shortest unambiguous version prefix for this package."
(package-unique-version-prefix (manifest-entry-name entry)
(manifest-entry-version entry)))
(define (manifest->code* manifest extra-manifests)
"Like 'manifest->code', but insert a 'concatenate-manifests' call that
concatenates MANIFESTS, a list of expressions."
(if (null? (manifest-entries manifest))
(match extra-manifests
((one) one)
(lst `(concatenate-manifests ,@extra-manifests)))
(match (manifest->code manifest
#:entry-package-version
manifest-entry-version-prefix)
(('begin exp ... last)
`(begin
,@exp
,(match extra-manifests
(() last)
(_ `(concatenate-manifests
(list ,last ,@extra-manifests)))))))))
\f
(define-command (guix-manifest . args)
(category development)
(synopsis "turn command-line arguments into a manifest")
(define (manifest-lift proc)
(lambda (entry)
(match (manifest-entry-item entry)
((? package? p)
(manifest-entry
(inherit (package->manifest-entry (proc p)))
(output (manifest-entry-output entry))))
(_
entry))))
(define (handle-argument arg result)
(if (assoc-ref result 'development?)
(alist-cons 'development-inputs arg
(alist-delete 'development? result))
(alist-cons 'argument arg result)))
(with-error-handling
(let* ((opts (parse-command-line args %options (list %default-options)
#:build-options? #f
#:argument-handler handle-argument))
(transform (options->transformation opts))
(specs (reverse
(filter-map (match-lambda
(('argument . spec) spec)
(_ #f))
opts)))
(extras (reverse
(filter-map (match-lambda
(('development-inputs . spec)
;; Make sure SPEC is valid.
(specification->package spec)
;; XXX: This is an approximation:
;; transformation options are not
;; applied.
`(package->development-manifest
(specification->package ,spec)))
(_ #f))
opts)))
(manifest (concatenate-manifests
(cons (map-manifest-entries
(manifest-lift transform)
(specifications->manifest specs))
(filter-map (match-lambda
(('manifest . file)
(load-manifest file))
(_ #f))
opts)))))
(display (G_ "\
;; What follows is a \"manifest\" equivalent to the command line you gave.
;; You can store it in a file that you may then pass to any 'guix' command
;; that accepts a '--manifest' (or '-m') option.\n"))
(match (manifest->code* manifest extras)
(('begin exp ...)
(for-each (lambda (exp)
(newline)
(pretty-print exp))
exp))
(exp
(pretty-print exp))))))
|