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1 | ;;; GNU Guix --- Functional package management for GNU |
2 | ;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org> | |
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 git-download) | |
20 | #:use-module (guix records) | |
21 | #:use-module (guix derivations) | |
22 | #:use-module (guix packages) | |
6750877f | 23 | #:autoload (guix build-system gnu) (standard-inputs) |
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24 | #:use-module (ice-9 match) |
25 | #:export (git-reference | |
26 | git-reference? | |
27 | git-reference-url | |
28 | git-reference-commit | |
6750877f | 29 | git-reference-recursive? |
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30 | |
31 | git-fetch)) | |
32 | ||
33 | ;;; Commentary: | |
34 | ;;; | |
35 | ;;; An <origin> method that fetches a specific commit from a Git repository. | |
36 | ;;; The repository URL and commit hash are specified with a <git-reference> | |
37 | ;;; object. | |
38 | ;;; | |
39 | ;;; Code: | |
40 | ||
41 | (define-record-type* <git-reference> | |
42 | git-reference make-git-reference | |
43 | git-reference? | |
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44 | (url git-reference-url) |
45 | (commit git-reference-commit) | |
46 | (recursive? git-reference-recursive? ; whether to recurse into sub-modules | |
47 | (default #f))) | |
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48 | |
49 | (define* (git-fetch store ref hash-algo hash | |
50 | #:optional name | |
51 | #:key (system (%current-system)) guile git) | |
52 | "Return a fixed-output derivation in STORE that fetches REF, a | |
53 | <git-reference> object. The output is expected to have recursive hash HASH of | |
54 | type HASH-ALGO (a symbol). Use NAME as the file name, or a generic name if | |
55 | #f." | |
56 | (define guile-for-build | |
57 | (match guile | |
58 | ((? package?) | |
59 | (package-derivation store guile system)) | |
60 | (#f ; the default | |
61 | (let* ((distro (resolve-interface '(gnu packages base))) | |
62 | (guile (module-ref distro 'guile-final))) | |
63 | (package-derivation store guile system))))) | |
64 | ||
65 | (define git-for-build | |
66 | (match git | |
67 | ((? package?) | |
68 | (package-derivation store git system)) | |
69 | (#f ; the default | |
70 | (let* ((distro (resolve-interface '(gnu packages version-control))) | |
71 | (git (module-ref distro 'git))) | |
72 | (package-derivation store git system))))) | |
73 | ||
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74 | (define inputs |
75 | ;; When doing 'git clone --recursive', we need sed, grep, etc. to be | |
76 | ;; available so that 'git submodule' works. | |
77 | (if (git-reference-recursive? ref) | |
78 | (standard-inputs (%current-system)) | |
79 | '())) | |
80 | ||
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81 | (let* ((command (string-append (derivation->output-path git-for-build) |
82 | "/bin/git")) | |
83 | (builder `(begin | |
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84 | (use-modules (guix build git) |
85 | (guix build utils) | |
86 | (ice-9 match)) | |
87 | ||
88 | ;; The 'git submodule' commands expects Coreutils, sed, | |
89 | ;; grep, etc. to be in $PATH. | |
90 | (set-path-environment-variable "PATH" '("bin") | |
91 | (match %build-inputs | |
92 | (((names . dirs) ...) | |
93 | dirs))) | |
94 | ||
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95 | (git-fetch ',(git-reference-url ref) |
96 | ',(git-reference-commit ref) | |
97 | %output | |
6750877f | 98 | #:recursive? ',(git-reference-recursive? ref) |
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99 | #:git-command ',command)))) |
100 | (build-expression->derivation store (or name "git-checkout") builder | |
101 | #:system system | |
102 | #:local-build? #t | |
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103 | #:inputs `(("git" ,git-for-build) |
104 | ,@inputs) | |
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105 | #:hash-algo hash-algo |
106 | #:hash hash | |
107 | #:recursive? #t | |
108 | #:modules '((guix build git) | |
109 | (guix build utils)) | |
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110 | #:guile-for-build guile-for-build |
111 | #:local-build? #t))) | |
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112 | |
113 | ;;; git-download.scm ends here |