blob: 5be7fa0ef3f4ab8b828076b0874246e7e3bc89b4 (
plain)
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
|
;;; Chickadee Game Toolkit
;;; Copyright © 2021 David Thompson <dthompson2@worcester.edu>
;;;
;;; Licensed under the Apache License, Version 2.0 (the "License");
;;; you may not use this file except in compliance with the License.
;;; You may obtain a copy of the License at
;;;
;;; http://www.apache.org/licenses/LICENSE-2.0
;;;
;;; Unless required by applicable law or agreed to in writing, software
;;; distributed under the License is distributed on an "AS IS" BASIS,
;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;;; See the License for the specific language governing permissions and
;;; limitations under the License.
(define-module (chickadee cli)
#:use-module (chickadee)
#:use-module (chickadee config)
#:use-module (ice-9 format)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-37)
#:export (launch-chickadee
display-version-and-exit
leave
simple-args-fold
operands))
(define (display-version-and-exit)
(format #t "Chickadee ~a
Copyright (C) 2023 David Thompson and Chickadee contributors
Licensed under Apache 2.0 <https://www.apache.org/licenses/LICENSE-2.0>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.~%"
%chickadee-version)
(exit 0))
(define (display-help-and-exit)
(format #t "Usage: chickadee SUBCOMMAND ARGS ...~%
Run SUBCOMMAND with ARGS
Valid subcommands:
* bundle
* play~%")
(exit 1))
(define (leave format-string . args)
"Display error message and exist."
(apply format (current-error-port) format-string args)
(newline)
(exit 1))
(define (simple-args-fold args options defaults)
(args-fold args options
(lambda (opt name arg result)
(leave "unrecognized option: ~A" name))
(lambda (arg result)
(alist-cons 'operand arg result))
defaults))
(define (operands opts)
(filter-map (match-lambda
(('operand . arg) arg)
(_ #f))
opts))
(define (run-chickadee-command command . args)
(define (invalid-command)
(format (current-error-port) "invalid subcommand: ~a~%~%" command)
(display-help-and-exit))
(let* ((module
(catch 'misc-error
(lambda ()
(resolve-interface `(chickadee cli ,command)))
(lambda args
(invalid-command))))
(proc-name (symbol-append 'chickadee- command))
(command-proc (false-if-exception (module-ref module proc-name))))
(if (procedure? command-proc)
(apply command-proc args)
(invalid-command))))
(define (subcommand? arg)
(not (string-prefix? "-" arg)))
(define (launch-chickadee . args)
(match args
((program (or "--verison" "-v"))
(display-version-and-exit))
((or (program) (program (or "--help" "-h")))
(display-help-and-exit))
((program (? subcommand? subcommand) . args*)
(apply run-chickadee-command (string->symbol subcommand) args*))
((program invalid-subcommand . args*)
(leave "invalid subcommand: ~A" invalid-subcommand))))
|
