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
| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
;;;
;;; 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 scripts import hackage)
#:use-module (guix ui)
#:use-module (guix utils)
#:use-module (guix scripts)
#:use-module (guix import hackage)
#:use-module (guix scripts import)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-37)
#:use-module (ice-9 match)
#:use-module (ice-9 format)
#:export (guix-import-hackage))
\f
;;;
;;; Command-line options.
;;;
(define %default-options
'((include-test-dependencies? . #t)
(read-from-stdin? . #f)
('cabal-environment . '())))
(define (show-help)
(display (_ "Usage: guix import hackage PACKAGE-NAME
Import and convert the Hackage package for PACKAGE-NAME. If PACKAGE-NAME
includes a suffix constituted by a dash followed by a numerical version (as
used with Guix packages), then a definition for the specified version of the
package will be generated. If no version suffix is pecified, then the
generated package definition will correspond to the latest available
version.\n"))
(display (_ "
-e ALIST, --cabal-environment=ALIST
specify environment for Cabal evaluation"))
(display (_ "
-h, --help display this help and exit"))
(display (_ "
-s, --stdin read from standard input"))
(display (_ "
-t, --no-test-dependencies don't include test-only dependencies"))
(display (_ "
-V, --version display version information and exit"))
(newline)
(show-bug-report-information))
(define %options
;; Specification of the command-line options.
(cons* (option '(#\h "help") #f #f
(lambda args
(show-help)
(exit 0)))
(option '(#\V "version") #f #f
(lambda args
(show-version-and-exit "guix import hackage")))
(option '(#\t "no-test-dependencies") #f #f
(lambda (opt name arg result)
(alist-cons 'include-test-dependencies? #f
(alist-delete 'include-test-dependencies?
result))))
(option '(#\s "stdin") #f #f
(lambda (opt name arg result)
(alist-cons 'read-from-stdin? #t
(alist-delete 'read-from-stdin?
result))))
(option '(#\e "cabal-environment") #t #f
(lambda (opt name arg result)
(alist-cons 'cabal-environment (read/eval arg)
(alist-delete 'cabal-environment
result))))
%standard-import-options))
\f
;;;
;;; Entry point.
;;;
(define (guix-import-hackage . args)
(define (parse-options)
;; Return the alist of option values.
(args-fold* args %options
(lambda (opt name arg result)
(leave (_ "~A: unrecognized option~%") name))
(lambda (arg result)
(alist-cons 'argument arg result))
%default-options))
(define (run-importer package-name opts error-fn)
(let ((sexp (hackage->guix-package
package-name
#:include-test-dependencies?
(assoc-ref opts 'include-test-dependencies?)
#:port (if (assoc-ref opts 'read-from-stdin?)
(current-input-port)
#f)
#:cabal-environment
(assoc-ref opts 'cabal-environment))))
(unless sexp (error-fn))
sexp))
(let* ((opts (parse-options))
(args (filter-map (match-lambda
(('argument . value)
value)
(_ #f))
(reverse opts))))
(if (assoc-ref opts 'read-from-stdin?)
(match args
(()
(run-importer "stdin" opts
(lambda ()
(leave (_ "failed to import cabal file \
from standard input~%")))))
((many ...)
(leave (_ "too many arguments~%"))))
(match args
((package-name)
(run-importer package-name opts
(lambda ()
(leave (_ "failed to download cabal file \
for package '~a'~%")
package-name))))
(()
(leave (_ "too few arguments~%")))
((many ...)
(leave (_ "too many arguments~%")))))))
|