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4ac69ea1 | 1 | ;;; GNU Guix --- Functional package management for GNU |
be672f1f | 2 | ;;; Copyright © 2017, 2022 Maxim Cournoyer <maxim.cournoyer@gmail.com> |
4ac69ea1 MC |
3 | ;;; |
4 | ;;; This file is part of GNU Guix. | |
5 | ;;; | |
6 | ;;; GNU Guix is free software; you can redistribute it and/or modify it | |
7 | ;;; under the terms of the GNU General Public License as published by | |
8 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
9 | ;;; your option) any later version. | |
10 | ;;; | |
11 | ;;; GNU Guix is distributed in the hope that it will be useful, but | |
12 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | ;;; GNU General Public License for more details. | |
15 | ;;; | |
16 | ;;; You should have received a copy of the GNU General Public License | |
17 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. | |
18 | ||
19 | (define-module (guix bzr-download) | |
20 | #:use-module (guix gexp) | |
21 | #:use-module (guix modules) ;for 'source-module-closure' | |
22 | #:use-module (guix monads) | |
23 | #:use-module (guix packages) | |
24 | #:use-module (guix records) | |
25 | #:use-module (guix store) | |
26 | ||
27 | #:export (bzr-reference | |
28 | bzr-reference? | |
29 | bzr-reference-url | |
30 | bzr-reference-revision | |
31 | ||
32 | bzr-fetch)) | |
33 | ||
34 | ;;; Commentary: | |
35 | ;;; | |
36 | ;;; An <origin> method that fetches a specific revision from a Bazaar | |
37 | ;;; repository. The repository URL and revision identifier are specified with | |
38 | ;;; a <bzr-reference> object. | |
39 | ;;; | |
40 | ;;; Code: | |
41 | ||
42 | (define-record-type* <bzr-reference> | |
43 | bzr-reference make-bzr-reference | |
44 | bzr-reference? | |
45 | (url bzr-reference-url) | |
46 | (revision bzr-reference-revision)) | |
47 | ||
48 | (define (bzr-package) | |
49 | "Return the default Bazaar package." | |
50 | (let ((distro (resolve-interface '(gnu packages version-control)))) | |
be672f1f | 51 | (module-ref distro 'breezy))) |
4ac69ea1 MC |
52 | |
53 | (define* (bzr-fetch ref hash-algo hash | |
54 | #:optional name | |
55 | #:key (system (%current-system)) (guile (default-guile)) | |
56 | (bzr (bzr-package))) | |
57 | "Return a fixed-output derivation that fetches REF, a <bzr-reference> | |
58 | object. The output is expected to have recursive hash HASH of type | |
59 | HASH-ALGO (a symbol). Use NAME as the file name, or a generic name if #f." | |
60 | (define build | |
61 | (with-imported-modules (source-module-closure | |
62 | '((guix build bzr))) | |
63 | #~(begin | |
64 | (use-modules (guix build bzr)) | |
65 | (bzr-fetch | |
66 | (getenv "bzr url") (getenv "bzr reference") #$output | |
be672f1f | 67 | #:bzr-command (string-append #+bzr "/bin/brz"))))) |
4ac69ea1 MC |
68 | |
69 | (mlet %store-monad ((guile (package->derivation guile system))) | |
70 | (gexp->derivation (or name "bzr-branch") build | |
71 | ;; Use environment variables and a fixed script name so | |
72 | ;; there's only one script in store for all the | |
73 | ;; downloads. | |
74 | #:script-name "bzr-download" | |
75 | #:env-vars | |
76 | `(("bzr url" . ,(bzr-reference-url ref)) | |
77 | ("bzr reference" . ,(bzr-reference-revision ref))) | |
67c2db17 LC |
78 | #:leaked-env-vars '("http_proxy" "https_proxy" |
79 | "LC_ALL" "LC_MESSAGES" "LANG" | |
80 | "COLUMNS") | |
4ac69ea1 MC |
81 | #:system system |
82 | #:local-build? #t ;don't offload repo branching | |
83 | #:hash-algo hash-algo | |
84 | #:hash hash | |
85 | #:recursive? #t | |
86 | #:guile-for-build guile))) | |
87 | ||
88 | ;;; bzr-download.scm ends here |