1	#!/usr/bin/env bash
2	#
3	# Test set flags, sh flags.
4
5	### $- with -c
6	# dash's behavior seems most sensible here?
7	$SH -o nounset -c 'echo $-'
8	# stdout: u
9	# OK bash stdout: huBc
10	# OK mksh stdout: uhc
11	# status: 0
12
13	### $- with pipefail
14	set -o pipefail -o nounset
15	echo $-
16	# stdout: u
17	# status: 0
18	# OK bash stdout: huB
19	# OK mksh stdout: ush
20	# N-I dash stdout-json: ""
21	# N-I dash status: 2
22
23	### sh -c
24	$SH -c 'echo hi'
25	# stdout: hi
26	# status: 0
27
28	### empty -c input
29	# had a bug here
30	$SH -c ''
31	# stdout-json: ""
32	# status: 0
33
34	### empty stdin
35	# had a bug here
36	echo -n '' | $SH
37	# stdout-json: ""
38	# status: 0
39
40	### args are passed
41	$SH -c 'argv.py "$@"' dummy a b
42	# stdout: ['a', 'b']
43
44	### args that look like flags are passed after script
45	script=$TMP/sh1.sh
46	echo 'argv.py "$@"' > $script
47	chmod +x $script
48	$SH $script --help --help -h
49	# stdout: ['--help', '--help', '-h']
50
51	### args that look like flags are passed after -c
52	$SH -c 'argv.py "$@"' --help --help -h
53	# stdout: ['--help', '-h']
54
55	### pass short options on command line
56	$SH -e -c 'false; echo status=$?'
57	# stdout-json: ""
58	# status: 1
59
60	### pass long options on command line
61	$SH -o errexit -c 'false; echo status=$?'
62	# stdout-json: ""
63	# status: 1
64
65	### can continue after unknown option
66	# dash and mksh make this a fatal error no matter what.
67	set -o errexit
68	set -o STRICT || true # unknown option
69	echo hello
70	# stdout: hello
71	# status: 0
72	# BUG dash/mksh stdout-json: ""
73	# BUG dash status: 2
74	# BUG mksh status: 1
75
76	### set with both options and argv
77	set -o errexit a b c
78	echo "$@"
79	false
80	echo done
81	# stdout: a b c
82	# status: 1
83
84	### nounset
85	echo "[$unset]"
86	set -o nounset
87	echo "[$unset]"
88	echo end # never reached
89	# stdout: []
90	# status: 1
91	# OK dash status: 2
92
93	### -u is nounset
94	echo "[$unset]"
95	set -u
96	echo "[$unset]"
97	echo end # never reached
98	# stdout: []
99	# status: 1
100	# OK dash status: 2
101
102	### nounset with "$@"
103	set a b c
104	set -u # shouldn't touch argv
105	echo "$@"
106	# stdout: a b c
107
108	### set -u -- clears argv
109	set a b c
110	set -u -- # shouldn't touch argv
111	echo "$@"
112	# stdout:
113
114	### set -u -- x y z
115	set a b c
116	set -u -- x y z
117	echo "$@"
118	# stdout: x y z
119
120	### reset option with long flag
121	set -o errexit
122	set +o errexit
123	echo "[$unset]"
124	# stdout: []
125	# status: 0
126
127	### reset option with short flag
128	set -u
129	set +u
130	echo "[$unset]"
131	# stdout: []
132	# status: 0
133
134	### set -eu (flag parsing)
135	set -eu
136	echo "[$unset]"
137	echo status=$?
138	# stdout-json: ""
139	# status: 1
140	# OK dash status: 2
141
142	### -n for no execution (useful with --ast-output)
143	# NOTE: set +n doesn't work because nothing is executed!
144	echo 1
145	set -n
146	echo 2
147	set +n
148	echo 3
149	# stdout-json: "1\n"
150	# status: 0
151
152	### xtrace
153	echo 1
154	set -o xtrace
155	echo 2
156	# stdout-json: "1\n2\n"
157	# stderr: + echo 2
158
159
160	### pipefail
161	# NOTE: the sleeps are because osh can fail non-deterministically because of a
162	# bug. Same problem as PIPESTATUS.
163	{ sleep 0.01; exit 9; } | { sleep 0.02; exit 2; } | { sleep 0.03; exit 0; }
164	echo $?
165	set -o pipefail
166	{ sleep 0.01; exit 9; } | { sleep 0.02; exit 2; } | { sleep 0.03; exit 0; }
167	echo $?
168	# stdout-json: "0\n2\n"
169	# status: 0
170	# N-I dash stdout-json: "0\n"
171	# N-I dash status: 2
172
173	### shopt -p -o
174	shopt -po nounset
175	set -u
176	shopt -po nounset
177	# stdout-json: "set +o nounset\nset -o nounset\n"
178	# N-I dash/mksh stdout-json: ""
179	# N-I dash/mksh status: 127
180
181	### shopt -p
182	shopt -p nullglob
183	shopt -s nullglob
184	shopt -p nullglob
185	# stdout-json: "shopt -u nullglob\nshopt -s nullglob\n"
186	# N-I dash/mksh stdout-json: ""
187	# N-I dash/mksh status: 127
188
189	### noclobber off
190	set -o errexit
191	echo foo > $TMP/can-clobber
192	set +C
193	echo foo > $TMP/can-clobber
194	set +o noclobber
195	echo foo > $TMP/can-clobber
196	cat $TMP/can-clobber
197	# stdout: foo
198
199	### noclobber on
200	# Not implemented yet.
201	rm $TMP/no-clobber
202	set -C
203	echo foo > $TMP/no-clobber
204	echo $?
205	echo foo > $TMP/no-clobber
206	echo $?
207	# stdout-json: "0\n1\n"
208	# OK dash stdout-json: "0\n2\n"