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authorArun Isaac2022-03-02 17:55:27 +0530
committerArun Isaac2022-03-02 21:04:17 +0530
commitcb7cecae3f6152052bdaf601eb1f6fcb2727b6b9 (patch)
treee369c485363fb08ed2b294e1602d4a209754d506 /forge/utils.scm
parent419d982bb29dd8a3904e6591796cc7ebc9190fd8 (diff)
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Move channel modules into subdirectory.
We don't want the scm files in doc to be picked up on `guix pull'. * .guix-channel: New file. * forge: Move to guix/forge.
Diffstat (limited to 'forge/utils.scm')
-rw-r--r--forge/utils.scm70
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diff --git a/forge/utils.scm b/forge/utils.scm
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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 utils)
- #:use-module (ice-9 match)
- #:use-module (guix derivations)
- #:use-module (guix gexp)
- #:use-module (guix monads)
- #:use-module (guix profiles)
- #:use-module (guix search-paths)
- #:use-module (guix store)
- #:export (with-packages))
-
-(define (profile-with-packages packages)
- "Return profile with PACKAGES."
- (with-store store
- (run-with-store store
- (mlet* %store-monad ((prof-drv (profile-derivation
- (packages->manifest packages)))
- (profile -> (derivation->output-path prof-drv)))
- (mbegin %store-monad
- (built-derivations (list prof-drv))
- (return profile))))))
-
-(define (environment-with-packages packages)
- "Return environment of a profile with PACKAGES. Return value is an
-association list mapping the name of an environment variable to its
-value."
- (map (match-lambda
- ((search-path . value)
- (cons (search-path-specification-variable search-path)
- value)))
- (profile-search-paths (profile-with-packages packages))))
-
-(define (with-packages packages exp)
- "Return a gexp executing EXP, another gexp, in an environment where
-PACKAGES are available and their search path environment variables
-have been set."
- #~(begin
- ;; Add a reference to the profile.
- #$(profile-with-packages packages)
- ;; Set the environment.
- ;; We pull out match-lambda using module-ref instead of using
- ;; use-modules because this gexp will be substituted into other
- ;; gexps and use-modules only works at the top-level.
- (let-syntax ((match-lambda (macro-transformer
- (module-ref (resolve-module '(ice-9 match))
- 'match-lambda))))
- (for-each (match-lambda
- ((variable . value)
- (setenv variable value)))
- '#$(environment-with-packages packages)))
- ;; Run the provided expression.
- #$exp))