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	#### pass short options on command line
31	$SH -e -c 'false; echo status=$?'
32	## stdout-json: ""
33	## status: 1
34
35	#### pass long options on command line
36	$SH -o errexit -c 'false; echo status=$?'
37	## stdout-json: ""
38	## status: 1
39
40	#### can continue after unknown option
41	# dash and mksh make this a fatal error no matter what.
42	set -o errexit
43	set -o STRICT || true # unknown option
44	echo hello
45	## stdout: hello
46	## status: 0
47	## BUG dash/mksh stdout-json: ""
48	## BUG dash status: 2
49	## BUG mksh status: 1
50
51	#### set with both options and argv
52	set -o errexit a b c
53	echo "$@"
54	false
55	echo done
56	## stdout: a b c
57	## status: 1
58
59	#### set -o vi/emacs
60	set -o vi
61	echo $?
62	set -o emacs
63	echo $?
64	## STDOUT:
65	0
66	0
67	## END
68
69	#### nounset
70	echo "[$unset]"
71	set -o nounset
72	echo "[$unset]"
73	echo end # never reached
74	## stdout: []
75	## status: 1
76	## OK dash status: 2
77
78	#### -u is nounset
79	echo "[$unset]"
80	set -u
81	echo "[$unset]"
82	echo end # never reached
83	## stdout: []
84	## status: 1
85	## OK dash status: 2
86
87	#### nounset with "$@"
88	set a b c
89	set -u # shouldn't touch argv
90	echo "$@"
91	## stdout: a b c
92
93	#### set -u -- clears argv
94	set a b c
95	set -u -- # shouldn't touch argv
96	echo "$@"
97	## stdout:
98
99	#### set -u -- x y z
100	set a b c
101	set -u -- x y z
102	echo "$@"
103	## stdout: x y z
104
105	#### reset option with long flag
106	set -o errexit
107	set +o errexit
108	echo "[$unset]"
109	## stdout: []
110	## status: 0
111
112	#### reset option with short flag
113	set -u
114	set +u
115	echo "[$unset]"
116	## stdout: []
117	## status: 0
118
119	#### set -eu (flag parsing)
120	set -eu
121	echo "[$unset]"
122	echo status=$?
123	## stdout-json: ""
124	## status: 1
125	## OK dash status: 2
126
127	#### -n for no execution (useful with --ast-output)
128	# NOTE: set +n doesn't work because nothing is executed!
129	echo 1
130	set -n
131	echo 2
132	set +n
133	echo 3
134	# osh doesn't work because it only checks -n in bin/oil.py?
135	## STDOUT:
136	1
137	## END
138	## status: 0
139
140	#### pipefail
141	# NOTE: the sleeps are because osh can fail non-deterministically because of a
142	# bug. Same problem as PIPESTATUS.
143	{ sleep 0.01; exit 9; } | { sleep 0.02; exit 2; } | { sleep 0.03; }
144	echo $?
145	set -o pipefail
146	{ sleep 0.01; exit 9; } | { sleep 0.02; exit 2; } | { sleep 0.03; }
147	echo $?
148	## STDOUT:
149	0
150	2
151	## END
152	## status: 0
153	## N-I dash STDOUT:
154	0
155	## END
156	## N-I dash status: 2
157
158	#### shopt -p -o prints 'set' options
159	shopt -po nounset
160	set -o nounset
161	shopt -po nounset
162	## STDOUT:
163	set +o nounset
164	set -o nounset
165	## END
166	## N-I dash/mksh stdout-json: ""
167	## N-I dash/mksh status: 127
168
169	#### shopt -p prints 'shopt' options
170	shopt -p nullglob
171	shopt -s nullglob
172	shopt -p nullglob
173	## STDOUT:
174	shopt -u nullglob
175	shopt -s nullglob
176	## END
177	## N-I dash/mksh stdout-json: ""
178	## N-I dash/mksh status: 127
179
180	#### shopt with no flags prints options
181	cd $TMP
182
183	# print specific options. OSH does it in a different format.
184	shopt nullglob failglob > one.txt
185	wc -l one.txt
186	grep -o nullglob one.txt
187	grep -o failglob one.txt
188
189	# print all options
190	shopt | grep nullglob | wc -l
191	## STDOUT:
192	2 one.txt
193	nullglob
194	failglob
195	1
196	## END
197	## N-I dash/mksh STDOUT:
198	0 one.txt
199	0
200	## END
201
202	#### noclobber off
203	set -o errexit
204	echo foo > $TMP/can-clobber
205	set +C
206	echo foo > $TMP/can-clobber
207	set +o noclobber
208	echo foo > $TMP/can-clobber
209	cat $TMP/can-clobber
210	## stdout: foo
211
212	#### noclobber on
213	# Not implemented yet.
214	rm $TMP/no-clobber
215	set -C
216	echo foo > $TMP/no-clobber
217	echo $?
218	echo foo > $TMP/no-clobber
219	echo $?
220	## stdout-json: "0\n1\n"
221	## OK dash stdout-json: "0\n2\n"
222
223	#### SHELLOPTS is updated when options are changed
224	echo $SHELLOPTS | grep -q xtrace
225	echo $?
226	set -x
227	echo $SHELLOPTS | grep -q xtrace
228	echo $?
229	set +x
230	echo $SHELLOPTS | grep -q xtrace
231	echo $?
232	## stdout-json: "1\n0\n1\n"
233	## N-I dash/mksh stdout-json: "1\n1\n1\n"
234
235	#### SHELLOPTS is readonly
236	SHELLOPTS=x
237	echo status=$?
238	## stdout: status=1
239	## N-I dash/mksh stdout: status=0
240
241	# Setting a readonly variable in osh is a hard failure.
242	## OK osh status: 1
243	## OK osh stdout-json: ""
244
245	#### set -o lists options
246	# NOTE: osh doesn't use the same format yet.
247	set -o | grep -o noexec
248	## STDOUT:
249	noexec
250	## END
251
252	#### set without args lists variables
253	__GLOBAL=g
254	f() {
255	local __mylocal=L
256	local __OTHERLOCAL=L
257	__GLOBAL=mutated
258	set | grep '^__'
259	}
260	g() {
261	local __var_in_parent_scope=D
262	f
263	}
264	g
265	## status: 0
266	## STDOUT:
267	__GLOBAL='mutated'
268	__OTHERLOCAL='L'
269	__mylocal='L'
270	__var_in_parent_scope='D'
271	## END
272	## OK bash STDOUT:
273	__GLOBAL=mutated
274	__OTHERLOCAL=L
275	__mylocal=L
276	__var_in_parent_scope=D
277	## END
278	## OK mksh STDOUT:
279	__GLOBAL=mutated
280	__var_in_parent_scope=D
281	__OTHERLOCAL=L
282	__mylocal=L
283	## END
284
285	#### 'set' and 'eval' round trip
286
287	# NOTE: not testing arrays and associative arrays!
288	_space='[ ]'
289	_whitespace=$'[\t\r\n]'
290	_sq="'single quotes'"
291	_backslash_dq="\\ \""
292	_unicode=$'[\u03bc]'
293
294	# Save the variables
295	varfile=$TMP/vars-$(basename $SH).txt
296
297	set | grep '^_' > "$varfile"
298
299	# Unset variables
300	unset _space _whitespace _sq _backslash_dq _unicode
301	echo [ $_space $_whitespace $_sq $_backslash_dq $_unicode ]
302
303	# Restore them
304
305	. $varfile
306	echo "Code saved to $varfile" 1>&2 # for debugging
307
308	test "$_space" = '[ ]' && echo OK
309	test "$_whitespace" = $'[\t\r\n]' && echo OK
310	test "$_sq" = "'single quotes'" && echo OK
311	test "$_backslash_dq" = "\\ \"" && echo OK
312	test "$_unicode" = $'[\u03bc]' && echo OK
313
314	## STDOUT:
315	[ ]
316	OK
317	OK
318	OK
319	OK
320	OK
321	## END
322
323	#### set without args and array variables (not in OSH)
324	declare -a __array
325	__array=(1 2 '3 4')
326	set | grep '^__'
327	## STDOUT:
328	__array=([0]="1" [1]="2" [2]="3 4")
329	## END
330	## OK mksh STDOUT:
331	__array[0]=1
332	__array[1]=2
333	__array[2]='3 4'
334	## N-I dash stdout-json: ""
335	## N-I dash status: 2
336	## N-I osh stdout-json: ""
337	## N-I osh status: 1
338
339	#### set without args and assoc array variables (not in OSH)
340	typeset -A __assoc
341	__assoc['k e y']='v a l'
342	__assoc[a]=b
343	set | grep '^__'
344	## STDOUT:
345	__assoc=(["k e y"]="v a l" [a]="b" )
346	## END
347	## N-I mksh stdout-json: ""
348	## N-I mksh status: 1
349	## N-I dash stdout-json: ""
350	## N-I dash status: 1
351	## N-I osh stdout-json: ""
352	## N-I osh status: 1
353
354	#### shopt -q
355	shopt -q nullglob
356	echo nullglob=$?
357
358	# set it
359	shopt -s nullglob
360
361	shopt -q nullglob
362	echo nullglob=$?
363
364	shopt -q nullglob failglob
365	echo nullglob,failglob=$?
366
367	# set it
368	shopt -s failglob
369	shopt -q nullglob failglob
370	echo nullglob,failglob=$?
371
372	## STDOUT:
373	nullglob=1
374	nullglob=0
375	nullglob,failglob=1
376	nullglob,failglob=0
377	## END
378	## N-I dash/mksh STDOUT:
379	nullglob=127
380	nullglob=127
381	nullglob,failglob=127
382	nullglob,failglob=127
383	## END
384
385	#### shopt -q invalid
386	shopt -q invalidZZ
387	echo invalidZZ=$?
388	## STDOUT:
389	invalidZZ=2
390	## END
391	## OK bash STDOUT:
392	invalidZZ=1
393	## END
394	## N-I dash/mksh STDOUT:
395	invalidZZ=127
396	## END
397
398	#### shopt -s all:strict
399	n=2
400
401	show-strict() {
402	shopt -p | grep 'strict-' | head -n $n
403	echo -
404	}
405
406	show-strict
407	shopt -s all:strict
408	show-strict
409	shopt -u all:strict
410	show-strict
411	## STDOUT:
412	shopt -u strict-argv
413	shopt -s strict-arith
414	-
415	shopt -s strict-argv
416	shopt -s strict-arith
417	-
418	shopt -u strict-argv
419	shopt -u strict-arith
420	-
421	## END
422	## N-I dash status: 2
423	## N-I dash stdout-json: ""
424	## N-I bash/mksh STDOUT:
425	-
426	-
427	-
428	## END
429
430	#### shopt allows for backward compatibility like bash
431
432	# doesn't have to be on, but just for testing
433	set -o errexit
434
435	shopt -p nullglob || true # bash returns 1 here? Like -q.
436
437	# This should set strict-array, and return 1, which can be ignored
438	shopt -s nullglob strict-OPTION_NOT_YET_IMPLEMENTED 2>/dev/null || true
439	echo status=$?
440
441	shopt -p nullglob || true
442
443	## STDOUT:
444	shopt -u nullglob
445	status=0
446	shopt -s nullglob
447	## END
448	## N-I dash/mksh STDOUT:
449	status=0
450	## END
451	## N-I dash/mksh status: 0
452
453	#### shopt -p validates option names
454	shopt -p nullglob invalid failglob
455	echo status=$?
456	# same thing as -p, slightly different format in bash
457	shopt nullglob invalid failglob > $TMP/out.txt
458	status=$?
459	sed --regexp-extended 's/\s+/ /' $TMP/out.txt # make it easier to assert
460	echo status=$status
461	## STDOUT:
462	shopt -u nullglob
463	status=2
464	shopt -u nullglob
465	status=2
466	## END
467	## OK bash STDOUT:
468	shopt -u nullglob
469	shopt -u failglob
470	status=1
471	nullglob off
472	failglob off
473	status=1
474	## END
475	## N-I dash/mksh STDOUT:
476	status=127
477	status=127
478	## END
479
480	#### shopt -p -o validates option names
481	shopt -p -o errexit invalid nounset
482	echo status=$?
483	## STDOUT:
484	set +o errexit
485	status=2
486	## END
487	## OK bash STDOUT:
488	set +o errexit
489	set +o nounset
490	status=1
491	## END
492	## N-I dash/mksh STDOUT:
493	status=127
494	## END