89 lines
3.4 KiB
Scheme
89 lines
3.4 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2017 Maxim Cournoyer <maxim.cournoyer@gmail.com>
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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 (guix bzr-download)
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#:use-module (guix gexp)
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#:use-module (guix modules) ;for 'source-module-closure'
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#:use-module (guix monads)
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#:use-module (guix packages)
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#:use-module (guix records)
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#:use-module (guix store)
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#:export (bzr-reference
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bzr-reference?
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bzr-reference-url
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bzr-reference-revision
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bzr-fetch))
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;;; Commentary:
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;;;
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;;; An <origin> method that fetches a specific revision from a Bazaar
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;;; repository. The repository URL and revision identifier are specified with
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;;; a <bzr-reference> object.
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;;;
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;;; Code:
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(define-record-type* <bzr-reference>
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bzr-reference make-bzr-reference
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bzr-reference?
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(url bzr-reference-url)
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(revision bzr-reference-revision))
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(define (bzr-package)
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"Return the default Bazaar package."
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(let ((distro (resolve-interface '(gnu packages version-control))))
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(module-ref distro 'bazaar)))
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(define* (bzr-fetch ref hash-algo hash
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#:optional name
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#:key (system (%current-system)) (guile (default-guile))
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(bzr (bzr-package)))
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"Return a fixed-output derivation that fetches REF, a <bzr-reference>
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object. The output is expected to have recursive hash HASH of type
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HASH-ALGO (a symbol). Use NAME as the file name, or a generic name if #f."
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(define build
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(with-imported-modules (source-module-closure
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'((guix build bzr)))
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#~(begin
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(use-modules (guix build bzr))
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(bzr-fetch
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(getenv "bzr url") (getenv "bzr reference") #$output
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#:bzr-command (string-append #+bzr "/bin/bzr")))))
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(mlet %store-monad ((guile (package->derivation guile system)))
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(gexp->derivation (or name "bzr-branch") build
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;; Use environment variables and a fixed script name so
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;; there's only one script in store for all the
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;; downloads.
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#:script-name "bzr-download"
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#:env-vars
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`(("bzr url" . ,(bzr-reference-url ref))
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("bzr reference" . ,(bzr-reference-revision ref)))
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#:leaked-env-vars '("http_proxy" "https_proxy"
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"LC_ALL" "LC_MESSAGES" "LANG"
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"COLUMNS")
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#:system system
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#:local-build? #t ;don't offload repo branching
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#:hash-algo hash-algo
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#:hash hash
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#:recursive? #t
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#:guile-for-build guile)))
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;;; bzr-download.scm ends here
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