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 -o lists options
333	# NOTE: osh doesn't use the same format yet.
334	set -o | grep -o noexec
335	## STDOUT:
336	noexec
337	## END
338
339	#### set without args lists variables
340	__GLOBAL=g
341	f() {
342	local __mylocal=L
343	local __OTHERLOCAL=L
344	__GLOBAL=mutated
345	set | grep '^__'
346	}
347	g() {
348	local __var_in_parent_scope=D
349	f
350	}
351	g
352	## status: 0
353	## STDOUT:
354	__GLOBAL=mutated
355	__OTHERLOCAL=L
356	__mylocal=L
357	__var_in_parent_scope=D
358	## END
359	## OK mksh STDOUT:
360	__GLOBAL=mutated
361	__var_in_parent_scope=D
362	__OTHERLOCAL=L
363	__mylocal=L
364	## END
365	## OK dash STDOUT:
366	__GLOBAL='mutated'
367	__OTHERLOCAL='L'
368	__mylocal='L'
369	__var_in_parent_scope='D'
370	## END
371
372	#### 'set' and 'eval' round trip
373
374	# NOTE: not testing arrays and associative arrays!
375	_space='[ ]'
376	_whitespace=$'[\t\r\n]'
377	_sq="'single quotes'"
378	_backslash_dq="\\ \""
379	_unicode=$'[\u03bc]'
380
381	# Save the variables
382	varfile=$TMP/vars-$(basename $SH).txt
383
384	set | grep '^_' > "$varfile"
385
386	# Unset variables
387	unset _space _whitespace _sq _backslash_dq _unicode
388	echo [ $_space $_whitespace $_sq $_backslash_dq $_unicode ]
389
390	# Restore them
391
392	. $varfile
393	echo "Code saved to $varfile" 1>&2 # for debugging
394
395	test "$_space" = '[ ]' && echo OK
396	test "$_whitespace" = $'[\t\r\n]' && echo OK
397	test "$_sq" = "'single quotes'" && echo OK
398	test "$_backslash_dq" = "\\ \"" && echo OK
399	test "$_unicode" = $'[\u03bc]' && echo OK
400
401	## STDOUT:
402	[ ]
403	OK
404	OK
405	OK
406	OK
407	OK
408	## END
409
410	#### set without args and array variables (not in OSH)
411	declare -a __array
412	__array=(1 2 '3 4')
413	set | grep '^__'
414	## STDOUT:
415	__array=([0]="1" [1]="2" [2]="3 4")
416	## END
417	## OK mksh STDOUT:
418	__array[0]=1
419	__array[1]=2
420	__array[2]='3 4'
421	## N-I dash stdout-json: ""
422	## N-I dash status: 2
423	## N-I osh stdout-json: ""
424	## N-I osh status: 1
425
426	#### set without args and assoc array variables (not in OSH)
427	typeset -A __assoc
428	__assoc['k e y']='v a l'
429	__assoc[a]=b
430	set | grep '^__'
431	## STDOUT:
432	__assoc=(["k e y"]="v a l" [a]="b" )
433	## END
434	## N-I mksh stdout-json: ""
435	## N-I mksh status: 1
436	## N-I dash stdout-json: ""
437	## N-I dash status: 1
438	## N-I osh stdout-json: ""
439	## N-I osh status: 1
440
441	#### shopt -q
442	shopt -q nullglob
443	echo nullglob=$?
444
445	# set it
446	shopt -s nullglob
447
448	shopt -q nullglob
449	echo nullglob=$?
450
451	shopt -q nullglob failglob
452	echo nullglob,failglob=$?
453
454	# set it
455	shopt -s failglob
456	shopt -q nullglob failglob
457	echo nullglob,failglob=$?
458
459	## STDOUT:
460	nullglob=1
461	nullglob=0
462	nullglob,failglob=1
463	nullglob,failglob=0
464	## END
465	## N-I dash/mksh STDOUT:
466	nullglob=127
467	nullglob=127
468	nullglob,failglob=127
469	nullglob,failglob=127
470	## END
471
472	#### shopt -q invalid
473	shopt -q invalidZZ
474	echo invalidZZ=$?
475	## STDOUT:
476	invalidZZ=2
477	## END
478	## OK bash STDOUT:
479	invalidZZ=1
480	## END
481	## N-I dash/mksh STDOUT:
482	invalidZZ=127
483	## END
484
485	#### shopt -s strict:all
486	n=2
487
488	show-strict() {
489	shopt -p | grep 'strict_' | head -n $n
490	echo -
491	}
492
493	show-strict
494	shopt -s strict:all
495	show-strict
496	shopt -u strict_arith
497	show-strict
498	## STDOUT:
499	shopt -u strict_argv
500	shopt -u strict_arith
501	-
502	shopt -s strict_argv
503	shopt -s strict_arith
504	-
505	shopt -s strict_argv
506	shopt -u strict_arith
507	-
508	## END
509	## N-I dash status: 2
510	## N-I dash stdout-json: ""
511	## N-I bash/mksh STDOUT:
512	-
513	-
514	-
515	## END
516
517	#### shopt allows for backward compatibility like bash
518
519	# doesn't have to be on, but just for testing
520	set -o errexit
521
522	shopt -p nullglob || true # bash returns 1 here? Like -q.
523
524	# This should set nullglob, and return 1, which can be ignored
525	shopt -s nullglob strict_OPTION_NOT_YET_IMPLEMENTED 2>/dev/null || true
526	echo status=$?
527
528	shopt -p nullglob || true
529
530	## STDOUT:
531	shopt -u nullglob
532	status=0
533	shopt -s nullglob
534	## END
535	## N-I dash/mksh STDOUT:
536	status=0
537	## END
538	## N-I dash/mksh status: 0
539
540	#### shopt -p validates option names
541	shopt -p nullglob invalid failglob
542	echo status=$?
543	# same thing as -p, slightly different format in bash
544	shopt nullglob invalid failglob > $TMP/out.txt
545	status=$?
546	sed --regexp-extended 's/\s+/ /' $TMP/out.txt # make it easier to assert
547	echo status=$status
548	## STDOUT:
549	shopt -u nullglob
550	status=2
551	shopt -u nullglob
552	status=2
553	## END
554	## OK bash STDOUT:
555	shopt -u nullglob
556	shopt -u failglob
557	status=1
558	nullglob off
559	failglob off
560	status=1
561	## END
562	## N-I dash/mksh STDOUT:
563	status=127
564	status=127
565	## END
566
567	#### shopt -p -o validates option names
568	shopt -p -o errexit invalid nounset
569	echo status=$?
570	## STDOUT:
571	set +o errexit
572	status=2
573	## END
574	## OK bash STDOUT:
575	set +o errexit
576	set +o nounset
577	status=1
578	## END
579	## N-I dash/mksh STDOUT:
580	status=127
581	## END
582
583	#### stubbed out bash options
584	for name in foo autocd cdable_vars checkwinsize; do
585	shopt -s $name
586	echo $?
587	done
588	## STDOUT:
589	2
590	0
591	0
592	0
593	## END
594	## OK bash STDOUT:
595	1
596	0
597	0
598	0
599	## END
600	## OK dash/mksh STDOUT:
601	127
602	127
603	127
604	127
605	## END
606
607	#### shopt -s nounset doesn't work (may relax this later)
608	case $SH in
609	*dash|*mksh)
610	echo N-I
611	exit
612	;;
613	esac
614	shopt -s nounset
615	echo status=$?
616	# get rid of extra space in bash
617	set -o | grep nounset | sed 's/[ \t]\+/ /g'
618
619	## STDOUT:
620	status=2
621	set +o nounset
622	## END
623	## OK bash STDOUT:
624	status=1
625	nounset off
626	# END
627	## N-I dash/mksh STDOUT:
628	N-I
629	## END
630
631	#### no-ops not in shopt -p output
632	shopt -p | grep xpg
633	echo --
634	## STDOUT:
635	--
636	## END
637	## OK bash STDOUT:
638	shopt -u xpg_echo
639	--
640	## END
641
642