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	#### $- and more options
24	set -efuC
25	o=$-
26	[[ $o == *e* ]]; echo yes
27	[[ $o == *f* ]]; echo yes
28	[[ $o == *u* ]]; echo yes
29	[[ $o == *C* ]]; echo yes
30	## STDOUT:
31	yes
32	yes
33	yes
34	yes
35	## END
36	## N-I dash stdout-json: ""
37	## N-I dash status: 127
38
39	#### $- with interactive shell
40	$SH -c 'echo $-' | grep i || echo FALSE
41	$SH -i -c 'echo $-' | grep -q i && echo TRUE
42	## STDOUT:
43	FALSE
44	TRUE
45	## END
46	#### pass short options like sh -e
47	$SH -e -c 'false; echo status=$?'
48	## stdout-json: ""
49	## status: 1
50
51	#### pass long options like sh -o errexit
52	$SH -o errexit -c 'false; echo status=$?'
53	## stdout-json: ""
54	## status: 1
55
56	#### pass shopt options like sh -O nullglob
57	$SH +O nullglob -c 'echo foo *.nonexistent bar'
58	$SH -O nullglob -c 'echo foo *.nonexistent bar'
59	## STDOUT:
60	foo *.nonexistent bar
61	foo bar
62	## END
63	## N-I dash/mksh stdout-json: ""
64	## N-I dash status: 2
65	## N-I mksh status: 1
66
67	#### can continue after unknown option
68	# dash and mksh make this a fatal error no matter what.
69	set -o errexit
70	set -o STRICT || true # unknown option
71	echo hello
72	## stdout: hello
73	## status: 0
74	## BUG dash/mksh stdout-json: ""
75	## BUG dash status: 2
76	## BUG mksh status: 1
77
78	#### set with both options and argv
79	set -o errexit a b c
80	echo "$@"
81	false
82	echo done
83	## stdout: a b c
84	## status: 1
85
86	#### set -o vi/emacs
87	set -o vi
88	echo $?
89	set -o emacs
90	echo $?
91	## STDOUT:
92	0
93	0
94	## END
95
96	#### vi and emacs are mutually exclusive
97	show() {
98	shopt -o -p | egrep 'emacs$|vi$'
99	echo ___
100	};
101	show
102
103	set -o emacs
104	show
105
106	set -o vi
107	show
108
109	## STDOUT:
110	set +o emacs
111	set +o vi
112	___
113	set -o emacs
114	set +o vi
115	___
116	set +o emacs
117	set -o vi
118	___
119	## END
120	## N-I dash/mksh STDOUT:
121	___
122	___
123	___
124	## END
125
126	#### interactive shell starts with emacs mode on
127	case $SH in (dash) exit ;; esac
128	case $SH in (bash|*osh) flag='--rcfile /dev/null' ;; esac
129
130	code='test -o emacs; echo $?; test -o vi; echo $?'
131
132	echo non-interactive
133	$SH $flag -c "$code"
134
135	echo interactive
136	$SH $flag -i -c "$code"
137
138	## STDOUT:
139	non-interactive
140	1
141	1
142	interactive
143	0
144	1
145	## END
146	## OK mksh STDOUT:
147	non-interactive
148	0
149	1
150	interactive
151	0
152	1
153	## END
154	## N-I dash stdout-json: ""
155
156	#### nounset
157	echo "[$unset]"
158	set -o nounset
159	echo "[$unset]"
160	echo end # never reached
161	## stdout: []
162	## status: 1
163	## OK dash status: 2
164
165	#### -u is nounset
166	echo "[$unset]"
167	set -u
168	echo "[$unset]"
169	echo end # never reached
170	## stdout: []
171	## status: 1
172	## OK dash status: 2
173
174	#### nounset with "$@"
175	set a b c
176	set -u # shouldn't touch argv
177	echo "$@"
178	## stdout: a b c
179
180	#### set -u -- clears argv
181	set a b c
182	set -u -- # shouldn't touch argv
183	echo "$@"
184	## stdout:
185
186	#### set -u -- x y z
187	set a b c
188	set -u -- x y z
189	echo "$@"
190	## stdout: x y z
191
192	#### reset option with long flag
193	set -o errexit
194	set +o errexit
195	echo "[$unset]"
196	## stdout: []
197	## status: 0
198
199	#### reset option with short flag
200	set -u
201	set +u
202	echo "[$unset]"
203	## stdout: []
204	## status: 0
205
206	#### set -eu (flag parsing)
207	set -eu
208	echo "[$unset]"
209	echo status=$?
210	## stdout-json: ""
211	## status: 1
212	## OK dash status: 2
213
214	#### -n for no execution (useful with --ast-output)
215	# NOTE: set +n doesn't work because nothing is executed!
216	echo 1
217	set -n
218	echo 2
219	set +n
220	echo 3
221	# osh doesn't work because it only checks -n in bin/oil.py?
222	## STDOUT:
223	1
224	## END
225	## status: 0
226
227	#### pipefail
228	# NOTE: the sleeps are because osh can fail non-deterministically because of a
229	# bug. Same problem as PIPESTATUS.
230	{ sleep 0.01; exit 9; } | { sleep 0.02; exit 2; } | { sleep 0.03; }
231	echo $?
232	set -o pipefail
233	{ sleep 0.01; exit 9; } | { sleep 0.02; exit 2; } | { sleep 0.03; }
234	echo $?
235	## STDOUT:
236	0
237	2
238	## END
239	## status: 0
240	## N-I dash STDOUT:
241	0
242	## END
243	## N-I dash status: 2
244
245	#### shopt -p -o prints 'set' options
246	shopt -po nounset
247	set -o nounset
248	shopt -po nounset
249	## STDOUT:
250	set +o nounset
251	set -o nounset
252	## END
253	## N-I dash/mksh stdout-json: ""
254	## N-I dash/mksh status: 127
255
256	#### shopt -p prints 'shopt' options
257	shopt -p nullglob
258	shopt -s nullglob
259	shopt -p nullglob
260	## STDOUT:
261	shopt -u nullglob
262	shopt -s nullglob
263	## END
264	## N-I dash/mksh stdout-json: ""
265	## N-I dash/mksh status: 127
266
267	#### shopt with no flags prints options
268	cd $TMP
269
270	# print specific options. OSH does it in a different format.
271	shopt nullglob failglob > one.txt
272	wc -l one.txt
273	grep -o nullglob one.txt
274	grep -o failglob one.txt
275
276	# print all options
277	shopt | grep nullglob | wc -l
278	## STDOUT:
279	2 one.txt
280	nullglob
281	failglob
282	1
283	## END
284	## N-I dash/mksh STDOUT:
285	0 one.txt
286	0
287	## END
288
289	#### noclobber off
290	set -o errexit
291	echo foo > $TMP/can-clobber
292	set +C
293	echo foo > $TMP/can-clobber
294	set +o noclobber
295	echo foo > $TMP/can-clobber
296	cat $TMP/can-clobber
297	## stdout: foo
298
299	#### noclobber on
300	# Not implemented yet.
301	rm $TMP/no-clobber
302	set -C
303	echo foo > $TMP/no-clobber
304	echo $?
305	echo foo > $TMP/no-clobber
306	echo $?
307	## stdout-json: "0\n1\n"
308	## OK dash stdout-json: "0\n2\n"
309
310	#### SHELLOPTS is updated when options are changed
311	echo $SHELLOPTS | grep -q xtrace
312	echo $?
313	set -x
314	echo $SHELLOPTS | grep -q xtrace
315	echo $?
316	set +x
317	echo $SHELLOPTS | grep -q xtrace
318	echo $?
319	## stdout-json: "1\n0\n1\n"
320	## N-I dash/mksh stdout-json: "1\n1\n1\n"
321
322	#### SHELLOPTS is readonly
323	SHELLOPTS=x
324	echo status=$?
325	## stdout: status=1
326	## N-I dash/mksh stdout: status=0
327
328	# Setting a readonly variable in osh is a hard failure.
329	## OK osh status: 1
330	## OK osh stdout-json: ""
331
332	#### set - -
333	set a b
334	echo "$@"
335	set - a b
336	echo "$@"
337	set -- a b
338	echo "$@"
339	set - -
340	echo "$@"
341	set - +
342	echo "$@"
343	set + -
344	echo "$@"
345	set -- --
346	echo "$@"
347
348	# note: zsh is diffferent, and yash is totally different
349	## STDOUT:
350	a b
351	a b
352	a b
353	-
354	+
355	+
356	--
357	## END
358	## OK osh/yash STDOUT:
359	a b
360	- a b
361	a b
362	- -
363	- +
364	+ -
365	--
366	## END
367	## BUG mksh STDOUT:
368	a b
369	a b
370	a b
371	-
372	+
373	-
374	--
375	## END
376	## BUG zsh STDOUT:
377	a b
378	a b
379	a b
380
381	+
382
383	--
384	## END
385
386	#### set -o lists options
387	# NOTE: osh doesn't use the same format yet.
388	set -o | grep -o noexec
389	## STDOUT:
390	noexec
391	## END
392
393	#### set without args lists variables
394	__GLOBAL=g
395	f() {
396	local __mylocal=L
397	local __OTHERLOCAL=L
398	__GLOBAL=mutated
399	set | grep '^__'
400	}
401	g() {
402	local __var_in_parent_scope=D
403	f
404	}
405	g
406	## status: 0
407	## STDOUT:
408	__GLOBAL=mutated
409	__OTHERLOCAL=L
410	__mylocal=L
411	__var_in_parent_scope=D
412	## END
413	## OK mksh STDOUT:
414	__GLOBAL=mutated
415	__var_in_parent_scope=D
416	__OTHERLOCAL=L
417	__mylocal=L
418	## END
419	## OK dash STDOUT:
420	__GLOBAL='mutated'
421	__OTHERLOCAL='L'
422	__mylocal='L'
423	__var_in_parent_scope='D'
424	## END
425
426	#### 'set' and 'eval' round trip
427
428	# NOTE: not testing arrays and associative arrays!
429	_space='[ ]'
430	_whitespace=$'[\t\r\n]'
431	_sq="'single quotes'"
432	_backslash_dq="\\ \""
433	_unicode=$'[\u03bc]'
434
435	# Save the variables
436	varfile=$TMP/vars-$(basename $SH).txt
437
438	set | grep '^_' > "$varfile"
439
440	# Unset variables
441	unset _space _whitespace _sq _backslash_dq _unicode
442	echo [ $_space $_whitespace $_sq $_backslash_dq $_unicode ]
443
444	# Restore them
445
446	. $varfile
447	echo "Code saved to $varfile" 1>&2 # for debugging
448
449	test "$_space" = '[ ]' && echo OK
450	test "$_whitespace" = $'[\t\r\n]' && echo OK
451	test "$_sq" = "'single quotes'" && echo OK
452	test "$_backslash_dq" = "\\ \"" && echo OK
453	test "$_unicode" = $'[\u03bc]' && echo OK
454
455	## STDOUT:
456	[ ]
457	OK
458	OK
459	OK
460	OK
461	OK
462	## END
463
464	#### set without args and array variables (not in OSH)
465	declare -a __array
466	__array=(1 2 '3 4')
467	set | grep '^__'
468	## STDOUT:
469	__array=([0]="1" [1]="2" [2]="3 4")
470	## END
471	## OK mksh STDOUT:
472	__array[0]=1
473	__array[1]=2
474	__array[2]='3 4'
475	## N-I dash stdout-json: ""
476	## N-I dash status: 2
477	## N-I osh stdout-json: ""
478	## N-I osh status: 1
479
480	#### set without args and assoc array variables (not in OSH)
481	typeset -A __assoc
482	__assoc['k e y']='v a l'
483	__assoc[a]=b
484	set | grep '^__'
485	## STDOUT:
486	__assoc=(["k e y"]="v a l" [a]="b" )
487	## END
488	## N-I mksh stdout-json: ""
489	## N-I mksh status: 1
490	## N-I dash stdout-json: ""
491	## N-I dash status: 1
492	## N-I osh stdout-json: ""
493	## N-I osh status: 1
494
495	#### shopt -q
496	shopt -q nullglob
497	echo nullglob=$?
498
499	# set it
500	shopt -s nullglob
501
502	shopt -q nullglob
503	echo nullglob=$?
504
505	shopt -q nullglob failglob
506	echo nullglob,failglob=$?
507
508	# set it
509	shopt -s failglob
510	shopt -q nullglob failglob
511	echo nullglob,failglob=$?
512
513	## STDOUT:
514	nullglob=1
515	nullglob=0
516	nullglob,failglob=1
517	nullglob,failglob=0
518	## END
519	## N-I dash/mksh STDOUT:
520	nullglob=127
521	nullglob=127
522	nullglob,failglob=127
523	nullglob,failglob=127
524	## END
525
526	#### shopt -q invalid
527	shopt -q invalidZZ
528	echo invalidZZ=$?
529	## STDOUT:
530	invalidZZ=2
531	## END
532	## OK bash STDOUT:
533	invalidZZ=1
534	## END
535	## N-I dash/mksh STDOUT:
536	invalidZZ=127
537	## END
538
539	#### shopt -s strict:all
540	n=2
541
542	show-strict() {
543	shopt -p | grep 'strict_' | head -n $n
544	echo -
545	}
546
547	show-strict
548	shopt -s strict:all
549	show-strict
550	shopt -u strict_arith
551	show-strict
552	## STDOUT:
553	shopt -u strict_argv
554	shopt -u strict_arith
555	-
556	shopt -s strict_argv
557	shopt -s strict_arith
558	-
559	shopt -s strict_argv
560	shopt -u strict_arith
561	-
562	## END
563	## N-I dash status: 2
564	## N-I dash stdout-json: ""
565	## N-I bash/mksh STDOUT:
566	-
567	-
568	-
569	## END
570
571	#### shopt allows for backward compatibility like bash
572
573	# doesn't have to be on, but just for testing
574	set -o errexit
575
576	shopt -p nullglob || true # bash returns 1 here? Like -q.
577
578	# This should set nullglob, and return 1, which can be ignored
579	shopt -s nullglob strict_OPTION_NOT_YET_IMPLEMENTED 2>/dev/null || true
580	echo status=$?
581
582	shopt -p nullglob || true
583
584	## STDOUT:
585	shopt -u nullglob
586	status=0
587	shopt -s nullglob
588	## END
589	## N-I dash/mksh STDOUT:
590	status=0
591	## END
592	## N-I dash/mksh status: 0
593
594	#### shopt -p validates option names
595	shopt -p nullglob invalid failglob
596	echo status=$?
597	# same thing as -p, slightly different format in bash
598	shopt nullglob invalid failglob > $TMP/out.txt
599	status=$?
600	sed --regexp-extended 's/\s+/ /' $TMP/out.txt # make it easier to assert
601	echo status=$status
602	## STDOUT:
603	shopt -u nullglob
604	status=2
605	shopt -u nullglob
606	status=2
607	## END
608	## OK bash STDOUT:
609	shopt -u nullglob
610	shopt -u failglob
611	status=1
612	nullglob off
613	failglob off
614	status=1
615	## END
616	## N-I dash/mksh STDOUT:
617	status=127
618	status=127
619	## END
620
621	#### shopt -p -o validates option names
622	shopt -p -o errexit invalid nounset
623	echo status=$?
624	## STDOUT:
625	set +o errexit
626	status=2
627	## END
628	## OK bash STDOUT:
629	set +o errexit
630	set +o nounset
631	status=1
632	## END
633	## N-I dash/mksh STDOUT:
634	status=127
635	## END
636
637	#### stubbed out bash options
638	for name in foo autocd cdable_vars checkwinsize; do
639	shopt -s $name
640	echo $?
641	done
642	## STDOUT:
643	2
644	0
645	0
646	0
647	## END
648	## OK bash STDOUT:
649	1
650	0
651	0
652	0
653	## END
654	## OK dash/mksh STDOUT:
655	127
656	127
657	127
658	127
659	## END
660
661	#### shopt -s nounset doesn't work (may relax this later)
662	case $SH in
663	*dash|*mksh)
664	echo N-I
665	exit
666	;;
667	esac
668	shopt -s nounset
669	echo status=$?
670	# get rid of extra space in bash
671	set -o | grep nounset | sed 's/[ \t]\+/ /g'
672
673	## STDOUT:
674	status=2
675	set +o nounset
676	## END
677	## OK bash STDOUT:
678	status=1
679	nounset off
680	# END
681	## N-I dash/mksh STDOUT:
682	N-I
683	## END
684
685	#### no-ops not in shopt -p output
686	shopt -p | grep xpg
687	echo --
688	## STDOUT:
689	--
690	## END
691	## OK bash STDOUT:
692	shopt -u xpg_echo
693	--
694	## END
695
696