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profiles: Allow a profile to be added as an entry of another profile.

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* guix/build/profiles.scm (build-etc/profile): When 'OUTPUT/etc/profile'
already exists, delete it first.
(build-profile): Likewise for 'OUTPUT/manifest'.
* tests/profiles.scm ("profile in profile"): New test.
This commit is contained in:
Ludovic Courtès 2019-01-20 01:33:25 +01:00
parent 2d17a904ac
commit 38b77f3464
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2 changed files with 50 additions and 5 deletions
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23
guix/build/profiles.scm
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@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -67,8 +67,14 @@ user-friendly name of the profile is, for instance ~/.guix-profile rather than
(define (build-etc/profile output search-paths)
"Build the 'OUTPUT/etc/profile' shell file containing environment variable
definitions for all the SEARCH-PATHS."
(mkdir-p (string-append output "/etc"))
(call-with-output-file (string-append output "/etc/profile")
(define file
(string-append output "/etc/profile"))
(mkdir-p (dirname file))
(when (file-exists? file)
(delete-file file))
(call-with-output-file file
(lambda (port)
;; The use of $GUIX_PROFILE described below is not great. Another
;; option would have been to use "$1" and have users run:
@ -144,13 +150,22 @@ instead make DIRECTORY a \"real\" directory containing symlinks."
create symlinks. Write MANIFEST, an sexp, to OUTPUT/manifest. Create
OUTPUT/etc/profile with Bash definitions for -all the variables listed in
SEARCH-PATHS."
(define manifest-file
(string-append output "/manifest"))
;; Make the symlinks.
(union-build output inputs
#:symlink symlink
#:log-port (%make-void-port "w"))
;; If one of the INPUTS provides a '/manifest' file, delete it. That can
;; happen if MANIFEST contains something such as a Guix instance, which is
;; ultimately built as a profile.
(when (file-exists? manifest-file)
(delete-file manifest-file))
;; Store meta-data.
(call-with-output-file (string-append output "/manifest")
(call-with-output-file manifest-file
(lambda (p)
(pretty-print manifest p)))