1	#
2	# Test set flags, sh flags.
3
4	#### $- with -c
5	# dash's behavior seems most sensible here?
6	$SH -o nounset -c 'echo $-'
7	## stdout: u
8	## OK bash stdout: huBc
9	## OK mksh stdout: uhc
10	## status: 0
11
12	#### $- with pipefail
13	set -o pipefail -o nounset
14	echo $-
15	## stdout: u
16	## status: 0
17	## OK bash stdout: huBs
18	## OK mksh stdout: ush
19	## N-I dash stdout-json: ""
20	## N-I dash status: 2
21
22	#### $- and more options
23	set -efuC
24	o=$-
25	[[ $o == *e* ]]; echo yes
26	[[ $o == *f* ]]; echo yes
27	[[ $o == *u* ]]; echo yes
28	[[ $o == *C* ]]; echo yes
29	## STDOUT:
30	yes
31	yes
32	yes
33	yes
34	## END
35	## N-I dash stdout-json: ""
36	## N-I dash status: 127
37
38	#### $- with interactive shell
39	$SH -c 'echo $-' | grep i || echo FALSE
40	$SH -i -c 'echo $-' | grep -q i && echo TRUE
41	## STDOUT:
42	FALSE
43	TRUE
44	## END
45	#### pass short options like sh -e
46	$SH -e -c 'false; echo status=$?'
47	## stdout-json: ""
48	## status: 1
49
50	#### pass long options like sh -o errexit
51	$SH -o errexit -c 'false; echo status=$?'
52	## stdout-json: ""
53	## status: 1
54
55	#### pass shopt options like sh -O nullglob
56	$SH +O nullglob -c 'echo foo *.nonexistent bar'
57	$SH -O nullglob -c 'echo foo *.nonexistent bar'
58	## STDOUT:
59	foo *.nonexistent bar
60	foo bar
61	## END
62	## N-I dash/mksh stdout-json: ""
63	## N-I dash status: 2
64	## N-I mksh status: 1
65
66	#### can continue after unknown option
67	# dash and mksh make this a fatal error no matter what.
68	set -o errexit
69	set -o STRICT || true # unknown option
70	echo hello
71	## stdout: hello
72	## status: 0
73	## BUG dash/mksh stdout-json: ""
74	## BUG dash status: 2
75	## BUG mksh status: 1
76
77	#### set with both options and argv
78	set -o errexit a b c
79	echo "$@"
80	false
81	echo done
82	## stdout: a b c
83	## status: 1
84
85	#### set -o vi/emacs
86	set -o vi
87	echo $?
88	set -o emacs
89	echo $?
90	## STDOUT:
91	0
92	0
93	## END
94
95	#### vi and emacs are mutually exclusive
96	show() {
97	shopt -o -p | egrep 'emacs$|vi$'
98	echo ___
99	};
100	show
101
102	set -o emacs
103	show
104
105	set -o vi
106	show
107
108	## STDOUT:
109	set +o emacs
110	set +o vi
111	___
112	set -o emacs
113	set +o vi
114	___
115	set +o emacs
116	set -o vi
117	___
118	## END
119	## N-I dash/mksh STDOUT:
120	___
121	___
122	___
123	## END
124
125	#### interactive shell starts with emacs mode on
126	case $SH in (dash) exit ;; esac
127	case $SH in (bash|*osh) flag='--rcfile /dev/null' ;; esac
128
129	code='test -o emacs; echo $?; test -o vi; echo $?'
130
131	echo non-interactive
132	$SH $flag -c "$code"
133
134	echo interactive
135	$SH $flag -i -c "$code"
136
137	## STDOUT:
138	non-interactive
139	1
140	1
141	interactive
142	0
143	1
144	## END
145	## OK mksh STDOUT:
146	non-interactive
147	0
148	1
149	interactive
150	0
151	1
152	## END
153	## N-I dash stdout-json: ""
154
155	#### nounset
156	echo "[$unset]"
157	set -o nounset
158	echo "[$unset]"
159	echo end # never reached
160	## stdout: []
161	## status: 1
162	## OK dash status: 2
163
164	#### -u is nounset
165	echo "[$unset]"
166	set -u
167	echo "[$unset]"
168	echo end # never reached
169	## stdout: []
170	## status: 1
171	## OK dash status: 2
172
173	#### nounset with "$@"
174	set a b c
175	set -u # shouldn't touch argv
176	echo "$@"
177	## stdout: a b c
178
179	#### set -u -- clears argv
180	set a b c
181	set -u -- # shouldn't touch argv
182	echo "$@"
183	## stdout:
184
185	#### set -u -- x y z
186	set a b c
187	set -u -- x y z
188	echo "$@"
189	## stdout: x y z
190
191	#### reset option with long flag
192	set -o errexit
193	set +o errexit
194	echo "[$unset]"
195	## stdout: []
196	## status: 0
197
198	#### reset option with short flag
199	set -u
200	set +u
201	echo "[$unset]"
202	## stdout: []
203	## status: 0
204
205	#### set -eu (flag parsing)
206	set -eu
207	echo "[$unset]"
208	echo status=$?
209	## stdout-json: ""
210	## status: 1
211	## OK dash status: 2
212
213	#### -n for no execution (useful with --ast-output)
214	# NOTE: set +n doesn't work because nothing is executed!
215	echo 1
216	set -n
217	echo 2
218	set +n
219	echo 3
220	# osh doesn't work because it only checks -n in bin/oil.py?
221	## STDOUT:
222	1
223	## END
224	## status: 0
225
226	#### pipefail
227	# NOTE: the sleeps are because osh can fail non-deterministically because of a
228	# bug. Same problem as PIPESTATUS.
229	{ sleep 0.01; exit 9; } | { sleep 0.02; exit 2; } | { sleep 0.03; }
230	echo $?
231	set -o pipefail
232	{ sleep 0.01; exit 9; } | { sleep 0.02; exit 2; } | { sleep 0.03; }
233	echo $?
234	## STDOUT:
235	0
236	2
237	## END
238	## status: 0
239	## N-I dash STDOUT:
240	0
241	## END
242	## N-I dash status: 2
243
244	#### shopt -p -o prints 'set' options
245	shopt -po nounset
246	set -o nounset
247	shopt -po nounset
248	## STDOUT:
249	set +o nounset
250	set -o nounset
251	## END
252	## N-I dash/mksh stdout-json: ""
253	## N-I dash/mksh status: 127
254
255	#### shopt -p prints 'shopt' options
256	shopt -p nullglob
257	shopt -s nullglob
258	shopt -p nullglob
259	## STDOUT:
260	shopt -u nullglob
261	shopt -s nullglob
262	## END
263	## N-I dash/mksh stdout-json: ""
264	## N-I dash/mksh status: 127
265
266	#### shopt with no flags prints options
267	cd $TMP
268
269	# print specific options. OSH does it in a different format.
270	shopt nullglob failglob > one.txt
271	wc -l one.txt
272	grep -o nullglob one.txt
273	grep -o failglob one.txt
274
275	# print all options
276	shopt | grep nullglob | wc -l
277	## STDOUT:
278	2 one.txt
279	nullglob
280	failglob
281	1
282	## END
283	## N-I dash/mksh STDOUT:
284	0 one.txt
285	0
286	## END
287
288	#### noclobber off
289	set -o errexit
290	echo foo > $TMP/can-clobber
291	set +C
292	echo foo > $TMP/can-clobber
293	set +o noclobber
294	echo foo > $TMP/can-clobber
295	cat $TMP/can-clobber
296	## stdout: foo
297
298	#### noclobber on
299	# Not implemented yet.
300	rm $TMP/no-clobber
301	set -C
302	echo foo > $TMP/no-clobber
303	echo $?
304	echo foo > $TMP/no-clobber
305	echo $?
306	## stdout-json: "0\n1\n"
307	## OK dash stdout-json: "0\n2\n"
308
309	#### SHELLOPTS is updated when options are changed
310	echo $SHELLOPTS | grep -q xtrace
311	echo $?
312	set -x
313	echo $SHELLOPTS | grep -q xtrace
314	echo $?
315	set +x
316	echo $SHELLOPTS | grep -q xtrace
317	echo $?
318	## stdout-json: "1\n0\n1\n"
319	## N-I dash/mksh stdout-json: "1\n1\n1\n"
320
321	#### SHELLOPTS is readonly
322	SHELLOPTS=x
323	echo status=$?
324	## stdout: status=1
325	## N-I dash/mksh stdout: status=0
326
327	# Setting a readonly variable in osh is a hard failure.
328	## OK osh status: 1
329	## OK osh stdout-json: ""
330
331	#### set - -
332	set a b
333	echo "$@"
334	set - a b
335	echo "$@"
336	set -- a b
337	echo "$@"
338	set - -
339	echo "$@"
340	set - +
341	echo "$@"
342	set + -
343	echo "$@"
344	set -- --
345	echo "$@"
346
347	# note: zsh is diffferent, and yash is totally different
348	## STDOUT:
349	a b
350	a b
351	a b
352	-
353	+
354	+
355	--
356	## END
357	## OK osh/yash STDOUT:
358	a b
359	- a b
360	a b
361	- -
362	- +
363	+ -
364	--
365	## END
366	## BUG mksh STDOUT:
367	a b
368	a b
369	a b
370	-
371	+
372	-
373	--
374	## END
375	## BUG zsh STDOUT:
376	a b
377	a b
378	a b
379
380	+
381
382	--
383	## END
384
385	#### set -o lists options
386	# NOTE: osh doesn't use the same format yet.
387	set -o | grep -o noexec
388	## STDOUT:
389	noexec
390	## END
391
392	#### set without args lists variables
393	__GLOBAL=g
394	f() {
395	local __mylocal=L
396	local __OTHERLOCAL=L
397	__GLOBAL=mutated
398	set | grep '^__'
399	}
400	g() {
401	local __var_in_parent_scope=D
402	f
403	}
404	g
405	## status: 0
406	## STDOUT:
407	__GLOBAL=mutated
408	__OTHERLOCAL=L
409	__mylocal=L
410	__var_in_parent_scope=D
411	## END
412	## OK mksh STDOUT:
413	__GLOBAL=mutated
414	__var_in_parent_scope=D
415	__OTHERLOCAL=L
416	__mylocal=L
417	## END
418	## OK dash STDOUT:
419	__GLOBAL='mutated'
420	__OTHERLOCAL='L'
421	__mylocal='L'
422	__var_in_parent_scope='D'
423	## END
424
425	#### 'set' and 'eval' round trip
426
427	# NOTE: not testing arrays and associative arrays!
428	_space='[ ]'
429	_whitespace=$'[\t\r\n]'
430	_sq="'single quotes'"
431	_backslash_dq="\\ \""
432	_unicode=$'[\u03bc]'
433
434	# Save the variables
435	varfile=$TMP/vars-$(basename $SH).txt
436
437	set | grep '^_' > "$varfile"
438
439	# Unset variables
440	unset _space _whitespace _sq _backslash_dq _unicode
441	echo [ $_space $_whitespace $_sq $_backslash_dq $_unicode ]
442
443	# Restore them
444
445	. $varfile
446	echo "Code saved to $varfile" 1>&2 # for debugging
447
448	test "$_space" = '[ ]' && echo OK
449	test "$_whitespace" = $'[\t\r\n]' && echo OK
450	test "$_sq" = "'single quotes'" && echo OK
451	test "$_backslash_dq" = "\\ \"" && echo OK
452	test "$_unicode" = $'[\u03bc]' && echo OK
453
454	## STDOUT:
455	[ ]
456	OK
457	OK
458	OK
459	OK
460	OK
461	## END
462
463	#### set without args and array variables (not in OSH)
464	declare -a __array
465	__array=(1 2 '3 4')
466	set | grep '^__'
467	## STDOUT:
468	__array=([0]="1" [1]="2" [2]="3 4")
469	## END
470	## OK mksh STDOUT:
471	__array[0]=1
472	__array[1]=2
473	__array[2]='3 4'
474	## N-I dash stdout-json: ""
475	## N-I dash status: 2
476	## N-I osh stdout-json: ""
477	## N-I osh status: 1
478
479	#### set without args and assoc array variables (not in OSH)
480	typeset -A __assoc
481	__assoc['k e y']='v a l'
482	__assoc[a]=b
483	set | grep '^__'
484	## STDOUT:
485	__assoc=(["k e y"]="v a l" [a]="b" )
486	## END
487	## N-I mksh stdout-json: ""
488	## N-I mksh status: 1
489	## N-I dash stdout-json: ""
490	## N-I dash status: 1
491	## N-I osh stdout-json: ""
492	## N-I osh status: 1
493
494	#### shopt -q
495	shopt -q nullglob
496	echo nullglob=$?
497
498	# set it
499	shopt -s nullglob
500
501	shopt -q nullglob
502	echo nullglob=$?
503
504	shopt -q nullglob failglob
505	echo nullglob,failglob=$?
506
507	# set it
508	shopt -s failglob
509	shopt -q nullglob failglob
510	echo nullglob,failglob=$?
511
512	## STDOUT:
513	nullglob=1
514	nullglob=0
515	nullglob,failglob=1
516	nullglob,failglob=0
517	## END
518	## N-I dash/mksh STDOUT:
519	nullglob=127
520	nullglob=127
521	nullglob,failglob=127
522	nullglob,failglob=127
523	## END
524
525	#### shopt -q invalid
526	shopt -q invalidZZ
527	echo invalidZZ=$?
528	## STDOUT:
529	invalidZZ=2
530	## END
531	## OK bash STDOUT:
532	invalidZZ=1
533	## END
534	## N-I dash/mksh STDOUT:
535	invalidZZ=127
536	## END
537
538	#### shopt -s strict:all
539	n=2
540
541	show-strict() {
542	shopt -p | grep 'strict_' | head -n $n
543	echo -
544	}
545
546	show-strict
547	shopt -s strict:all
548	show-strict
549	shopt -u strict_arith
550	show-strict
551	## STDOUT:
552	shopt -u strict_argv
553	shopt -u strict_arith
554	-
555	shopt -s strict_argv
556	shopt -s strict_arith
557	-
558	shopt -s strict_argv
559	shopt -u strict_arith
560	-
561	## END
562	## N-I dash status: 2
563	## N-I dash stdout-json: ""
564	## N-I bash/mksh STDOUT:
565	-
566	-
567	-
568	## END
569
570	#### shopt allows for backward compatibility like bash
571
572	# doesn't have to be on, but just for testing
573	set -o errexit
574
575	shopt -p nullglob || true # bash returns 1 here? Like -q.
576
577	# This should set nullglob, and return 1, which can be ignored
578	shopt -s nullglob strict_OPTION_NOT_YET_IMPLEMENTED 2>/dev/null || true
579	echo status=$?
580
581	shopt -p nullglob || true
582
583	## STDOUT:
584	shopt -u nullglob
585	status=0
586	shopt -s nullglob
587	## END
588	## N-I dash/mksh STDOUT:
589	status=0
590	## END
591	## N-I dash/mksh status: 0
592
593	#### shopt -p validates option names
594	shopt -p nullglob invalid failglob
595	echo status=$?
596	# same thing as -p, slightly different format in bash
597	shopt nullglob invalid failglob > $TMP/out.txt
598	status=$?
599	sed --regexp-extended 's/\s+/ /' $TMP/out.txt # make it easier to assert
600	echo status=$status
601	## STDOUT:
602	status=2
603	status=2
604	## END
605	## OK bash STDOUT:
606	shopt -u nullglob
607	shopt -u failglob
608	status=1
609	nullglob off
610	failglob off
611	status=1
612	## END
613	## N-I dash/mksh STDOUT:
614	status=127
615	status=127
616	## END
617
618	#### shopt -p -o validates option names
619	shopt -p -o errexit invalid nounset
620	echo status=$?
621	## STDOUT:
622	set +o errexit
623	status=2
624	## END
625	## OK bash STDOUT:
626	set +o errexit
627	set +o nounset
628	status=1
629	## END
630	## N-I dash/mksh STDOUT:
631	status=127
632	## END
633
634	#### stubbed out bash options
635	for name in foo autocd cdable_vars checkwinsize; do
636	shopt -s $name
637	echo $?
638	done
639	## STDOUT:
640	2
641	0
642	0
643	0
644	## END
645	## OK bash STDOUT:
646	1
647	0
648	0
649	0
650	## END
651	## OK dash/mksh STDOUT:
652	127
653	127
654	127
655	127
656	## END
657
658	#### shopt -s nounset works in Oil, not in bash
659	case $SH in
660	*dash|*mksh)
661	echo N-I
662	exit
663	;;
664	esac
665	shopt -s nounset
666	echo status=$?
667
668	# get rid of extra space in bash output
669	set -o | grep nounset | sed 's/[ \t]\+/ /g'
670
671	## STDOUT:
672	status=0
673	set -o nounset
674	## END
675	## OK bash STDOUT:
676	status=1
677	nounset off
678	# END
679	## N-I dash/mksh STDOUT:
680	N-I
681	## END
682
683	#### no-ops not in shopt -p output
684	shopt -p | grep xpg
685	echo --
686	## STDOUT:
687	--
688	## END
689	## OK bash STDOUT:
690	shopt -u xpg_echo
691	--
692	## END
693
694