99 lines
3.4 KiB
Scheme
99 lines
3.4 KiB
Scheme
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
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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 (build-self)
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#:use-module (gnu)
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#:use-module (guix)
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#:use-module (srfi srfi-1)
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#:export (build))
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;;; Commentary:
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;;;
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;;; When loaded, this module returns a monadic procedure of at least one
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;;; argument: the source tree to build. It returns a derivation that
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;;; builds it.
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;;;
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;;; This file uses modules provided by the already-installed Guix. Those
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;;; modules may be arbitrarily old compared to the version we want to
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;;; build. Because of that, it must rely on the smallest set of features
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;;; that are likely to be provided by the (guix) and (gnu) modules, and by
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;;; Guile itself, forever and ever.
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;;;
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;;; Code:
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;; The dependencies. Don't refer explicitly to the variables because they
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;; could be renamed or shuffled around in modules over time. Conversely,
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;; 'find-best-packages-by-name' is expected to always have the same semantics.
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(define libgcrypt
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(first (find-best-packages-by-name "libgcrypt" #f)))
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(define guile-json
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(first (find-best-packages-by-name "guile-json" #f)))
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;; The actual build procedure.
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(define (top-source-directory)
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"Return the name of the top-level directory of this source tree."
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(and=> (assoc-ref (current-source-location) 'filename)
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(lambda (file)
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(string-append (dirname file) "/.."))))
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;; The procedure below is our return value.
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(define* (build source #:key verbose?
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#:allow-other-keys
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#:rest rest)
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"Return a derivation that unpacks SOURCE into STORE and compiles Scheme
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files."
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(define builder
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#~(begin
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(use-modules (guix build pull))
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(let ((json (string-append #$guile-json "/share/guile/site/2.0")))
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(set! %load-path (cons json %load-path))
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(set! %load-compiled-path (cons json %load-compiled-path)))
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(build-guix #$output #$source
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;; XXX: This is not perfect, enabling VERBOSE? means
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;; building a different derivation.
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#:debug-port (if #$verbose?
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(current-error-port)
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(%make-void-port "w"))
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#:gcrypt #$libgcrypt)))
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(gexp->derivation "guix-latest" builder
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#:modules '((guix build pull)
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(guix build utils))
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;; Arrange so that our own (guix build …) modules are
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;; used.
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#:module-path (list (top-source-directory))))
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;; This file is loaded by 'guix pull'; return it the build procedure.
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build
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;; Local Variables:
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;; eval: (put 'with-load-path 'scheme-indent-function 1)
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;; End:
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;;; build-self.scm ends here
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