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: huBs
19	## OK mksh stdout: ush
20	## N-I dash stdout-json: ""
21	## N-I dash status: 2
22
23	#### $- with interactive shell
24	$SH -c 'echo $-' | grep i || echo FALSE
25	$SH -i -c 'echo $-' | grep -q i && echo TRUE
26	## STDOUT:
27	FALSE
28	TRUE
29	## END
30
31	#### sh -c
32	$SH -c 'echo hi'
33	## stdout: hi
34	## status: 0
35
36	#### empty -c input
37	# had a bug here
38	$SH -c ''
39	## stdout-json: ""
40	## status: 0
41
42	#### empty stdin
43	# had a bug here
44	echo -n '' | $SH
45	## stdout-json: ""
46	## status: 0
47
48	#### args are passed
49	$SH -c 'argv.py "$@"' dummy a b
50	## stdout: ['a', 'b']
51
52	#### args that look like flags are passed after script
53	script=$TMP/sh1.sh
54	echo 'argv.py "$@"' > $script
55	chmod +x $script
56	$SH $script --help --help -h
57	## stdout: ['--help', '--help', '-h']
58
59	#### args that look like flags are passed after -c
60	$SH -c 'argv.py "$@"' --help --help -h
61	## stdout: ['--help', '-h']
62
63	#### pass short options on command line
64	$SH -e -c 'false; echo status=$?'
65	## stdout-json: ""
66	## status: 1
67
68	#### pass long options on command line
69	$SH -o errexit -c 'false; echo status=$?'
70	## stdout-json: ""
71	## status: 1
72
73	#### can continue after unknown option
74	# dash and mksh make this a fatal error no matter what.
75	set -o errexit
76	set -o STRICT || true # unknown option
77	echo hello
78	## stdout: hello
79	## status: 0
80	## BUG dash/mksh stdout-json: ""
81	## BUG dash status: 2
82	## BUG mksh status: 1
83
84	#### set with both options and argv
85	set -o errexit a b c
86	echo "$@"
87	false
88	echo done
89	## stdout: a b c
90	## status: 1
91
92	#### set -o vi/emacs
93	set -o vi
94	echo $?
95	set -o emacs
96	echo $?
97	## STDOUT:
98	0
99	0
100	## END
101
102	#### nounset
103	echo "[$unset]"
104	set -o nounset
105	echo "[$unset]"
106	echo end # never reached
107	## stdout: []
108	## status: 1
109	## OK dash status: 2
110
111	#### -u is nounset
112	echo "[$unset]"
113	set -u
114	echo "[$unset]"
115	echo end # never reached
116	## stdout: []
117	## status: 1
118	## OK dash status: 2
119
120	#### nounset with "$@"
121	set a b c
122	set -u # shouldn't touch argv
123	echo "$@"
124	## stdout: a b c
125
126	#### set -u -- clears argv
127	set a b c
128	set -u -- # shouldn't touch argv
129	echo "$@"
130	## stdout:
131
132	#### set -u -- x y z
133	set a b c
134	set -u -- x y z
135	echo "$@"
136	## stdout: x y z
137
138	#### reset option with long flag
139	set -o errexit
140	set +o errexit
141	echo "[$unset]"
142	## stdout: []
143	## status: 0
144
145	#### reset option with short flag
146	set -u
147	set +u
148	echo "[$unset]"
149	## stdout: []
150	## status: 0
151
152	#### set -eu (flag parsing)
153	set -eu
154	echo "[$unset]"
155	echo status=$?
156	## stdout-json: ""
157	## status: 1
158	## OK dash status: 2
159
160	#### -n for no execution (useful with --ast-output)
161	# NOTE: set +n doesn't work because nothing is executed!
162	echo 1
163	set -n
164	echo 2
165	set +n
166	echo 3
167	## stdout-json: "1\n"
168	## status: 0
169
170	#### pipefail
171	# NOTE: the sleeps are because osh can fail non-deterministically because of a
172	# bug. Same problem as PIPESTATUS.
173	{ sleep 0.01; exit 9; } | { sleep 0.02; exit 2; } | { sleep 0.03; exit 0; }
174	echo $?
175	set -o pipefail
176	{ sleep 0.01; exit 9; } | { sleep 0.02; exit 2; } | { sleep 0.03; exit 0; }
177	echo $?
178	## stdout-json: "0\n2\n"
179	## status: 0
180	## N-I dash stdout-json: "0\n"
181	## N-I dash status: 2
182
183	#### shopt -p -o
184	shopt -po nounset
185	set -u
186	shopt -po nounset
187	## stdout-json: "set +o nounset\nset -o nounset\n"
188	## N-I dash/mksh stdout-json: ""
189	## N-I dash/mksh status: 127
190
191	#### shopt -p
192	shopt -p nullglob
193	shopt -s nullglob
194	shopt -p nullglob
195	## stdout-json: "shopt -u nullglob\nshopt -s nullglob\n"
196	## N-I dash/mksh stdout-json: ""
197	## N-I dash/mksh status: 127
198
199	#### noclobber off
200	set -o errexit
201	echo foo > $TMP/can-clobber
202	set +C
203	echo foo > $TMP/can-clobber
204	set +o noclobber
205	echo foo > $TMP/can-clobber
206	cat $TMP/can-clobber
207	## stdout: foo
208
209	#### noclobber on
210	# Not implemented yet.
211	rm $TMP/no-clobber
212	set -C
213	echo foo > $TMP/no-clobber
214	echo $?
215	echo foo > $TMP/no-clobber
216	echo $?
217	## stdout-json: "0\n1\n"
218	## OK dash stdout-json: "0\n2\n"
219
220	#### SHELLOPTS is updated when options are changed
221	echo $SHELLOPTS | grep -q xtrace
222	echo $?
223	set -x
224	echo $SHELLOPTS | grep -q xtrace
225	echo $?
226	set +x
227	echo $SHELLOPTS | grep -q xtrace
228	echo $?
229	## stdout-json: "1\n0\n1\n"
230	## N-I dash/mksh stdout-json: "1\n1\n1\n"
231
232	#### SHELLOPTS is readonly
233	SHELLOPTS=x
234	echo status=$?
235	## stdout: status=1
236	## N-I dash/mksh stdout: status=0
237
238	#### set -o lists options
239	# NOTE: osh doesn't use the same format yet.
240	set -o | grep -o errexit
241	## STDOUT:
242	errexit
243	## END
244
245	#### set without args lists variables
246	__GLOBAL=g
247	f() {
248	local __mylocal=L
249	local __OTHERLOCAL=L
250	__GLOBAL=mutated
251	set | grep '^__'
252	}
253	g() {
254	local __var_in_parent_scope=D
255	f
256	}
257	g
258	## status: 0
259	## STDOUT:
260	__GLOBAL='mutated'
261	__OTHERLOCAL='L'
262	__mylocal='L'
263	__var_in_parent_scope='D'
264	## END
265	## OK bash STDOUT:
266	__GLOBAL=mutated
267	__OTHERLOCAL=L
268	__mylocal=L
269	__var_in_parent_scope=D
270	## END
271	## OK mksh STDOUT:
272	__GLOBAL=mutated
273	__var_in_parent_scope=D
274	__OTHERLOCAL=L
275	__mylocal=L
276	## END
277
278	#### 'set' and 'eval' round trip
279
280	# NOTE: not testing arrays and associative arrays!
281	_space='[ ]'
282	_whitespace=$'[\t\r\n]'
283	_sq="'single quotes'"
284	_backslash_dq="\\ \""
285	_unicode=$'[\u03bc]'
286
287	# Save the variables
288	varfile=$TMP/vars-$(basename $SH).txt
289
290	set | grep '^_' > "$varfile"
291
292	# Unset variables
293	unset _space _whitespace _sq _backslash_dq _unicode
294	echo [ $_space $_whitespace $_sq $_backslash_dq $_unicode ]
295
296	# Restore them
297
298	. $varfile
299	echo "Code saved to $varfile" 1>&2 # for debugging
300
301	test "$_space" = '[ ]' && echo OK
302	test "$_whitespace" = $'[\t\r\n]' && echo OK
303	test "$_sq" = "'single quotes'" && echo OK
304	test "$_backslash_dq" = "\\ \"" && echo OK
305	test "$_unicode" = $'[\u03bc]' && echo OK
306
307	## STDOUT:
308	[ ]
309	OK
310	OK
311	OK
312	OK
313	OK
314	## END
315
316	#### set without args lists array variables
317	declare -a __array
318	__array=(1 2 '3 4')
319	set | grep '^__'
320	## STDOUT:
321	__array=([0]="1" [1]="2" [2]="3 4")
322	## END
323	## OK mksh STDOUT:
324	__array[0]=1
325	__array[1]=2
326	__array[2]='3 4'
327	## N-I dash stdout-json: ""
328	## N-I dash status: 2
329
330	#### set without args lists assoc array variables
331	typeset -A __assoc
332	__assoc['k e y']='v a l'
333	__assoc[a]=b
334	set | grep '^__'
335	## STDOUT:
336	__assoc=(["k e y"]="v a l" [a]="b" )
337	## END
338	## N-I mksh stdout-json: ""
339	## N-I mksh status: 1
340	## N-I dash stdout-json: ""
341	## N-I dash status: 1
342
343	#### shopt -q
344	shopt -q nullglob
345	echo nullglob=$?
346
347	# set it
348	shopt -s nullglob
349
350	shopt -q nullglob
351	echo nullglob=$?
352
353	shopt -q nullglob failglob
354	echo nullglob,failglob=$?
355
356	# set it
357	shopt -s failglob
358	shopt -q nullglob failglob
359	echo nullglob,failglob=$?
360
361	## STDOUT:
362	nullglob=1
363	nullglob=0
364	nullglob,failglob=1
365	nullglob,failglob=0
366	## END
367	## N-I dash/mksh STDOUT:
368	nullglob=127
369	nullglob=127
370	nullglob,failglob=127
371	nullglob,failglob=127
372	## END
373
374	#### shopt -q invalid
375	shopt -q invalidZZ
376	echo invalidZZ=$?
377	## STDOUT:
378	invalidZZ=2
379	## END
380	## OK bash STDOUT:
381	invalidZZ=1
382	## END
383	## N-I dash/mksh STDOUT:
384	invalidZZ=127
385	## END
386
387	#### sh -i loads rcfile (when combined with -c)
388	$SH -c 'echo 1'
389	cat >$TMP/rcfile <<EOF
390	echo RCFILE
391	EOF
392	$SH --rcfile $TMP/rcfile -i -c 'echo 2'
393	## STDOUT:
394	1
395	RCFILE
396	2
397	## END
398	## N-I dash/mksh STDOUT:
399	1
400	## END
401	## N-I dash status: 2
402	## N-I mksh status: 1