1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix tests git)
#:use-module (git)
#:use-module ((guix git) #:select (with-repository))
#:use-module (guix utils)
#:use-module (guix build utils)
#:use-module (ice-9 match)
#:use-module (ice-9 control)
#:export (git-command
with-temporary-git-repository
with-git-repository
find-commit))
(define git-command
(make-parameter "git"))
(define (populate-git-repository directory directives)
"Initialize a new Git checkout and repository in DIRECTORY and apply
DIRECTIVES. Each element of DIRECTIVES is an sexp like:
(add \"foo.txt\" \"hi!\")
Return DIRECTORY on success."
;; Note: As of version 0.2.0, Guile-Git lacks the necessary bindings to do
;; all this, so resort to the "git" command.
(define (git command . args)
;; Make sure Git doesn't rely on the user's config.
(call-with-temporary-directory
(lambda (home)
(call-with-output-file (string-append home "/.gitconfig")
(lambda (port)
(display "[user]
email = charlie@example.org\n name = Charlie Guix\n"
port)))
(with-environment-variables
`(("GIT_CONFIG_NOSYSTEM" "1")
("GIT_ATTR_NOSYSTEM" "1")
("GIT_CONFIG_GLOBAL" ,(string-append home "/.gitconfig"))
("HOME" ,home))
(apply invoke (git-command) "-C" directory
command args)))))
(unless (directory-exists? (string-append directory "/.git"))
(mkdir-p directory)
(git "init"))
(let loop ((directives directives))
(match directives
(()
directory)
((('add file contents) rest ...)
(let ((file (string-append directory "/" file)))
(mkdir-p (dirname file))
(call-with-output-file file
(lambda (port)
(display (if (string? contents)
contents
(with-repository directory repository
(contents repository)))
port)))
(git "add" file)
(loop rest)))
((('add file-name-and-content) rest ...)
(loop (cons `(add ,file-name-and-content ,file-name-and-content)
rest)))
((('remove file) rest ...)
(git "rm" "-f" file)
(loop rest))
((('commit text) rest ...)
(git "commit" "-m" text)
(loop rest))
((('commit text ('signer fingerprint)) rest ...)
(git "commit" "-m" text (string-append "--gpg-sign=" fingerprint))
(loop rest))
((('tag name) rest ...)
(git "tag" name)
(loop rest))
((('tag name text) rest ...)
(git "tag" "-m" text name)
(loop rest))
((('branch name) rest ...)
(git "branch" name)
(loop rest))
((('checkout branch) rest ...)
(git "checkout" branch)
(loop rest))
((('checkout branch 'orphan) rest ...)
(git "checkout" "--orphan" branch)
(loop rest))
((('merge branch message) rest ...)
(git "merge" branch "-m" message)
(loop rest))
((('merge branch message ('signer fingerprint)) rest ...)
(git "merge" branch "-m" message
(string-append "--gpg-sign=" fingerprint))
(loop rest))
((('reset to) rest ...)
(git "reset" "--hard" to)
(loop rest)))))
(define (call-with-temporary-git-repository directives proc)
(call-with-temporary-directory
(lambda (directory)
(populate-git-repository directory directives)
(proc directory))))
(define-syntax-rule (with-temporary-git-repository directory
directives exp ...)
"Evaluate EXP in a context where DIRECTORY contains a checkout populated as
per DIRECTIVES."
(call-with-temporary-git-repository directives
(lambda (directory)
exp ...)))
(define-syntax-rule (with-git-repository directory
directives exp ...)
"Evaluate EXP in a context where DIRECTORY is (further) populated as
per DIRECTIVES."
(begin
(populate-git-repository directory directives)
exp ...))
(define (find-commit repository message)
"Return the commit in REPOSITORY whose message includes MESSAGE, a string."
(let/ec return
(fold-commits (lambda (commit _)
(and (string-contains (commit-message commit)
message)
(return commit)))
#f
repository)
(error "commit not found" message)))
|