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 like sh -e
31	$SH -e -c 'false; echo status=$?'
32	## stdout-json: ""
33	## status: 1
34
35	#### pass long options like sh -o errexit
36	$SH -o errexit -c 'false; echo status=$?'
37	## stdout-json: ""
38	## status: 1
39
40	#### pass shopt options like sh -O nullglob
41	$SH +O nullglob -c 'echo foo *.nonexistent bar'
42	$SH -O nullglob -c 'echo foo *.nonexistent bar'
43	## STDOUT:
44	foo *.nonexistent bar
45	foo bar
46	## END
47	## N-I dash/mksh stdout-json: ""
48	## N-I dash status: 2
49	## N-I mksh status: 1
50
51	#### can continue after unknown option
52	# dash and mksh make this a fatal error no matter what.
53	set -o errexit
54	set -o STRICT || true # unknown option
55	echo hello
56	## stdout: hello
57	## status: 0
58	## BUG dash/mksh stdout-json: ""
59	## BUG dash status: 2
60	## BUG mksh status: 1
61
62	#### set with both options and argv
63	set -o errexit a b c
64	echo "$@"
65	false
66	echo done
67	## stdout: a b c
68	## status: 1
69
70	#### set -o vi/emacs
71	set -o vi
72	echo $?
73	set -o emacs
74	echo $?
75	## STDOUT:
76	0
77	0
78	## END
79
80	#### vi and emacs are mutually exclusive
81	show() {
82	shopt -o -p | egrep 'emacs$|vi$'
83	echo ___
84	};
85	show
86
87	set -o emacs
88	show
89
90	set -o vi
91	show
92
93	## STDOUT:
94	set +o emacs
95	set +o vi
96	___
97	set -o emacs
98	set +o vi
99	___
100	set +o emacs
101	set -o vi
102	___
103	## END
104	## N-I dash/mksh STDOUT:
105	___
106	___
107	___
108	## END
109
110	#### interactive shell starts with emacs mode on
111	case $SH in (dash) exit ;; esac
112	case $SH in (bash|*osh) flag='--rcfile /dev/null' ;; esac
113
114	code='test -o emacs; echo $?; test -o vi; echo $?'
115
116	echo non-interactive
117	$SH $flag -c "$code"
118
119	echo interactive
120	$SH $flag -i -c "$code"
121
122	## STDOUT:
123	non-interactive
124	1
125	1
126	interactive
127	0
128	1
129	## END
130	## OK mksh STDOUT:
131	non-interactive
132	0
133	1
134	interactive
135	0
136	1
137	## END
138	## N-I dash stdout-json: ""
139
140	#### nounset
141	echo "[$unset]"
142	set -o nounset
143	echo "[$unset]"
144	echo end # never reached
145	## stdout: []
146	## status: 1
147	## OK dash status: 2
148
149	#### -u is nounset
150	echo "[$unset]"
151	set -u
152	echo "[$unset]"
153	echo end # never reached
154	## stdout: []
155	## status: 1
156	## OK dash status: 2
157
158	#### nounset with "$@"
159	set a b c
160	set -u # shouldn't touch argv
161	echo "$@"
162	## stdout: a b c
163
164	#### set -u -- clears argv
165	set a b c
166	set -u -- # shouldn't touch argv
167	echo "$@"
168	## stdout:
169
170	#### set -u -- x y z
171	set a b c
172	set -u -- x y z
173	echo "$@"
174	## stdout: x y z
175
176	#### reset option with long flag
177	set -o errexit
178	set +o errexit
179	echo "[$unset]"
180	## stdout: []
181	## status: 0
182
183	#### reset option with short flag
184	set -u
185	set +u
186	echo "[$unset]"
187	## stdout: []
188	## status: 0
189
190	#### set -eu (flag parsing)
191	set -eu
192	echo "[$unset]"
193	echo status=$?
194	## stdout-json: ""
195	## status: 1
196	## OK dash status: 2
197
198	#### -n for no execution (useful with --ast-output)
199	# NOTE: set +n doesn't work because nothing is executed!
200	echo 1
201	set -n
202	echo 2
203	set +n
204	echo 3
205	# osh doesn't work because it only checks -n in bin/oil.py?
206	## STDOUT:
207	1
208	## END
209	## status: 0
210
211	#### pipefail
212	# NOTE: the sleeps are because osh can fail non-deterministically because of a
213	# bug. Same problem as PIPESTATUS.
214	{ sleep 0.01; exit 9; } | { sleep 0.02; exit 2; } | { sleep 0.03; }
215	echo $?
216	set -o pipefail
217	{ sleep 0.01; exit 9; } | { sleep 0.02; exit 2; } | { sleep 0.03; }
218	echo $?
219	## STDOUT:
220	0
221	2
222	## END
223	## status: 0
224	## N-I dash STDOUT:
225	0
226	## END
227	## N-I dash status: 2
228
229	#### shopt -p -o prints 'set' options
230	shopt -po nounset
231	set -o nounset
232	shopt -po nounset
233	## STDOUT:
234	set +o nounset
235	set -o nounset
236	## END
237	## N-I dash/mksh stdout-json: ""
238	## N-I dash/mksh status: 127
239
240	#### shopt -p prints 'shopt' options
241	shopt -p nullglob
242	shopt -s nullglob
243	shopt -p nullglob
244	## STDOUT:
245	shopt -u nullglob
246	shopt -s nullglob
247	## END
248	## N-I dash/mksh stdout-json: ""
249	## N-I dash/mksh status: 127
250
251	#### shopt with no flags prints options
252	cd $TMP
253
254	# print specific options. OSH does it in a different format.
255	shopt nullglob failglob > one.txt
256	wc -l one.txt
257	grep -o nullglob one.txt
258	grep -o failglob one.txt
259
260	# print all options
261	shopt | grep nullglob | wc -l
262	## STDOUT:
263	2 one.txt
264	nullglob
265	failglob
266	1
267	## END
268	## N-I dash/mksh STDOUT:
269	0 one.txt
270	0
271	## END
272
273	#### noclobber off
274	set -o errexit
275	echo foo > $TMP/can-clobber
276	set +C
277	echo foo > $TMP/can-clobber
278	set +o noclobber
279	echo foo > $TMP/can-clobber
280	cat $TMP/can-clobber
281	## stdout: foo
282
283	#### noclobber on
284	# Not implemented yet.
285	rm $TMP/no-clobber
286	set -C
287	echo foo > $TMP/no-clobber
288	echo $?
289	echo foo > $TMP/no-clobber
290	echo $?
291	## stdout-json: "0\n1\n"
292	## OK dash stdout-json: "0\n2\n"
293
294	#### SHELLOPTS is updated when options are changed
295	echo $SHELLOPTS | grep -q xtrace
296	echo $?
297	set -x
298	echo $SHELLOPTS | grep -q xtrace
299	echo $?
300	set +x
301	echo $SHELLOPTS | grep -q xtrace
302	echo $?
303	## stdout-json: "1\n0\n1\n"
304	## N-I dash/mksh stdout-json: "1\n1\n1\n"
305
306	#### SHELLOPTS is readonly
307	SHELLOPTS=x
308	echo status=$?
309	## stdout: status=1
310	## N-I dash/mksh stdout: status=0
311
312	# Setting a readonly variable in osh is a hard failure.
313	## OK osh status: 1
314	## OK osh stdout-json: ""
315
316	#### set -o lists options
317	# NOTE: osh doesn't use the same format yet.
318	set -o | grep -o noexec
319	## STDOUT:
320	noexec
321	## END
322
323	#### set without args lists variables
324	__GLOBAL=g
325	f() {
326	local __mylocal=L
327	local __OTHERLOCAL=L
328	__GLOBAL=mutated
329	set | grep '^__'
330	}
331	g() {
332	local __var_in_parent_scope=D
333	f
334	}
335	g
336	## status: 0
337	## STDOUT:
338	__GLOBAL='mutated'
339	__OTHERLOCAL='L'
340	__mylocal='L'
341	__var_in_parent_scope='D'
342	## END
343	## OK bash STDOUT:
344	__GLOBAL=mutated
345	__OTHERLOCAL=L
346	__mylocal=L
347	__var_in_parent_scope=D
348	## END
349	## OK mksh STDOUT:
350	__GLOBAL=mutated
351	__var_in_parent_scope=D
352	__OTHERLOCAL=L
353	__mylocal=L
354	## END
355
356	#### 'set' and 'eval' round trip
357
358	# NOTE: not testing arrays and associative arrays!
359	_space='[ ]'
360	_whitespace=$'[\t\r\n]'
361	_sq="'single quotes'"
362	_backslash_dq="\\ \""
363	_unicode=$'[\u03bc]'
364
365	# Save the variables
366	varfile=$TMP/vars-$(basename $SH).txt
367
368	set | grep '^_' > "$varfile"
369
370	# Unset variables
371	unset _space _whitespace _sq _backslash_dq _unicode
372	echo [ $_space $_whitespace $_sq $_backslash_dq $_unicode ]
373
374	# Restore them
375
376	. $varfile
377	echo "Code saved to $varfile" 1>&2 # for debugging
378
379	test "$_space" = '[ ]' && echo OK
380	test "$_whitespace" = $'[\t\r\n]' && echo OK
381	test "$_sq" = "'single quotes'" && echo OK
382	test "$_backslash_dq" = "\\ \"" && echo OK
383	test "$_unicode" = $'[\u03bc]' && echo OK
384
385	## STDOUT:
386	[ ]
387	OK
388	OK
389	OK
390	OK
391	OK
392	## END
393
394	#### set without args and array variables (not in OSH)
395	declare -a __array
396	__array=(1 2 '3 4')
397	set | grep '^__'
398	## STDOUT:
399	__array=([0]="1" [1]="2" [2]="3 4")
400	## END
401	## OK mksh STDOUT:
402	__array[0]=1
403	__array[1]=2
404	__array[2]='3 4'
405	## N-I dash stdout-json: ""
406	## N-I dash status: 2
407	## N-I osh stdout-json: ""
408	## N-I osh status: 1
409
410	#### set without args and assoc array variables (not in OSH)
411	typeset -A __assoc
412	__assoc['k e y']='v a l'
413	__assoc[a]=b
414	set | grep '^__'
415	## STDOUT:
416	__assoc=(["k e y"]="v a l" [a]="b" )
417	## END
418	## N-I mksh stdout-json: ""
419	## N-I mksh status: 1
420	## N-I dash stdout-json: ""
421	## N-I dash status: 1
422	## N-I osh stdout-json: ""
423	## N-I osh status: 1
424
425	#### shopt -q
426	shopt -q nullglob
427	echo nullglob=$?
428
429	# set it
430	shopt -s nullglob
431
432	shopt -q nullglob
433	echo nullglob=$?
434
435	shopt -q nullglob failglob
436	echo nullglob,failglob=$?
437
438	# set it
439	shopt -s failglob
440	shopt -q nullglob failglob
441	echo nullglob,failglob=$?
442
443	## STDOUT:
444	nullglob=1
445	nullglob=0
446	nullglob,failglob=1
447	nullglob,failglob=0
448	## END
449	## N-I dash/mksh STDOUT:
450	nullglob=127
451	nullglob=127
452	nullglob,failglob=127
453	nullglob,failglob=127
454	## END
455
456	#### shopt -q invalid
457	shopt -q invalidZZ
458	echo invalidZZ=$?
459	## STDOUT:
460	invalidZZ=2
461	## END
462	## OK bash STDOUT:
463	invalidZZ=1
464	## END
465	## N-I dash/mksh STDOUT:
466	invalidZZ=127
467	## END
468
469	#### shopt -s strict:all
470	n=2
471
472	show-strict() {
473	shopt -p | grep 'strict_' | head -n $n
474	echo -
475	}
476
477	show-strict
478	shopt -s strict:all
479	show-strict
480	shopt -u strict_arith
481	show-strict
482	## STDOUT:
483	shopt -u strict_argv
484	shopt -u strict_arith
485	-
486	shopt -s strict_argv
487	shopt -s strict_arith
488	-
489	shopt -s strict_argv
490	shopt -u strict_arith
491	-
492	## END
493	## N-I dash status: 2
494	## N-I dash stdout-json: ""
495	## N-I bash/mksh STDOUT:
496	-
497	-
498	-
499	## END
500
501	#### shopt allows for backward compatibility like bash
502
503	# doesn't have to be on, but just for testing
504	set -o errexit
505
506	shopt -p nullglob || true # bash returns 1 here? Like -q.
507
508	# This should set nullglob, and return 1, which can be ignored
509	shopt -s nullglob strict_OPTION_NOT_YET_IMPLEMENTED 2>/dev/null || true
510	echo status=$?
511
512	shopt -p nullglob || true
513
514	## STDOUT:
515	shopt -u nullglob
516	status=0
517	shopt -s nullglob
518	## END
519	## N-I dash/mksh STDOUT:
520	status=0
521	## END
522	## N-I dash/mksh status: 0
523
524	#### shopt -p validates option names
525	shopt -p nullglob invalid failglob
526	echo status=$?
527	# same thing as -p, slightly different format in bash
528	shopt nullglob invalid failglob > $TMP/out.txt
529	status=$?
530	sed --regexp-extended 's/\s+/ /' $TMP/out.txt # make it easier to assert
531	echo status=$status
532	## STDOUT:
533	shopt -u nullglob
534	status=2
535	shopt -u nullglob
536	status=2
537	## END
538	## OK bash STDOUT:
539	shopt -u nullglob
540	shopt -u failglob
541	status=1
542	nullglob off
543	failglob off
544	status=1
545	## END
546	## N-I dash/mksh STDOUT:
547	status=127
548	status=127
549	## END
550
551	#### shopt -p -o validates option names
552	shopt -p -o errexit invalid nounset
553	echo status=$?
554	## STDOUT:
555	set +o errexit
556	status=2
557	## END
558	## OK bash STDOUT:
559	set +o errexit
560	set +o nounset
561	status=1
562	## END
563	## N-I dash/mksh STDOUT:
564	status=127
565	## END
566
567	#### stubbed out bash options
568	for name in foo autocd cdable_vars checkwinsize; do
569	shopt -s $name
570	echo $?
571	done
572	## STDOUT:
573	2
574	0
575	0
576	0
577	## END
578	## OK bash STDOUT:
579	1
580	0
581	0
582	0
583	## END
584	## OK dash/mksh STDOUT:
585	127
586	127
587	127
588	127
589	## END
590
591	#### shopt -s nounset doesn't work (may relax this later)
592	case $SH in
593	*dash|*mksh)
594	echo N-I
595	exit
596	;;
597	esac
598	shopt -s nounset
599	echo status=$?
600	# get rid of extra space in bash
601	set -o | grep nounset | sed 's/[ \t]\+/ /g'
602
603	## STDOUT:
604	status=2
605	set +o nounset
606	## END
607	## OK bash STDOUT:
608	status=1
609	nounset off
610	# END
611	## N-I dash/mksh STDOUT:
612	N-I
613	## END
614
615	#### no-ops not in shopt -p output
616	shopt -p | grep xpg
617	echo --
618	## STDOUT:
619	--
620	## END
621	## OK bash STDOUT:
622	shopt -u xpg_echo
623	--
624	## END
625
626