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;;; guix-forge --- Guix software forge meta-service
;;; Copyright © 2022 Arun Isaac <arunisaac@systemreboot.net>
;;;
;;; This file is part of guix-forge.
;;;
;;; guix-forge 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.
;;;
;;; guix-forge 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 guix-forge. If not, see
;;; <https://www.gnu.org/licenses/>.
(define-module (forge build utils)
#:use-module (rnrs exceptions)
#:use-module (ice-9 match)
#:use-module (guix build utils)
#:use-module (guix gexp)
#:use-module (guix profiles)
#:use-module (guix search-paths)
#:use-module (guix store)
#:use-module (guix utils)
#:export (with-profile))
;;;
;;; Commentary:
;;;
;;; This module provides various build-side utilities.
;;;
;;; Code:
(define (with-profile profile exp)
"Return a gexp referencing PROFILE and executing EXP, another gexp,
in the environment of PROFILE."
#~(begin
;; Reference the profile.
#$profile
;; Set the environment.
;; We pull out match-lambda using module-ref instead of using
;; use-modules because this gexp will be substituted into other
;; gexps and use-modules only works at the top-level.
(let-syntax ((match-lambda (macro-transformer
(module-ref (resolve-module '(ice-9 match))
'match-lambda))))
(for-each (match-lambda
((variable . value)
(setenv variable value)))
'#$(map (match-lambda
((search-path . value)
(cons (search-path-specification-variable search-path)
value)))
(profile-search-paths profile))))
;; Run the provided expression.
#$exp))
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