1 |
## oils_failures_allowed: 1
|
2 |
## compare_shells: bash dash mksh
|
3 |
|
4 |
|
5 |
|
6 |
echo one 1>&2
|
7 |
|
8 |
echo two 1<&2
|
9 |
|
10 |
## STDERR:
|
11 |
one
|
12 |
two
|
13 |
## END
|
14 |
|
15 |
|
16 |
|
17 |
# Is there a simpler test case for this?
|
18 |
echo foo > $TMP/lessamp.txt
|
19 |
|
20 |
exec 6< $TMP/lessamp.txt
|
21 |
read line <&6
|
22 |
|
23 |
echo "[$line]"
|
24 |
## stdout: [foo]
|
25 |
|
26 |
|
27 |
( exit 42 ) # status is reset after this
|
28 |
echo status=$?
|
29 |
2>&1
|
30 |
echo status=$?
|
31 |
## STDOUT:
|
32 |
status=42
|
33 |
status=0
|
34 |
## END
|
35 |
## stderr-json: ""
|
36 |
|
37 |
|
38 |
|
39 |
2&>1
|
40 |
echo status=$?
|
41 |
## STDOUT:
|
42 |
status=127
|
43 |
## END
|
44 |
## OK mksh/dash STDOUT:
|
45 |
status=0
|
46 |
## END
|
47 |
|
48 |
|
49 |
|
50 |
cat <$TMP/nonexistent.txt
|
51 |
echo status=$?
|
52 |
## stdout: status=1
|
53 |
## OK dash stdout: status=2
|
54 |
|
55 |
|
56 |
# Hm this seems like a failure of lookahead! The second thing should look to a
|
57 |
# file-like thing.
|
58 |
# I think this is a posix issue.
|
59 |
# tag: posix-issue
|
60 |
echo one 1>&2
|
61 |
echo two 1 >&2
|
62 |
echo three 1>& 2
|
63 |
## STDERR:
|
64 |
one
|
65 |
two 1
|
66 |
three
|
67 |
## END
|
68 |
|
69 |
|
70 |
# This time 1 *is* a descriptor, not a word. If you add a space between 1 and
|
71 |
# >, it doesn't work.
|
72 |
echo two 1> $TMP/file-redir1.txt
|
73 |
cat $TMP/file-redir1.txt
|
74 |
## stdout: two
|
75 |
|
76 |
|
77 |
# POSIX makes node of this
|
78 |
echo two \1 > $TMP/file-redir2.txt
|
79 |
cat $TMP/file-redir2.txt
|
80 |
## stdout: two 1
|
81 |
|
82 |
|
83 |
# bash/mksh treat this like a filename, not a descriptor.
|
84 |
# dash aborts.
|
85 |
echo one 1>&$TMP/nonexistent-filename__
|
86 |
echo "status=$?"
|
87 |
## stdout: status=1
|
88 |
## BUG bash stdout: status=0
|
89 |
## OK dash stdout-json: ""
|
90 |
## OK dash status: 2
|
91 |
|
92 |
|
93 |
{ echo foo 1>&2; echo 012345789; } > $TMP/block-stdout.txt
|
94 |
cat $TMP/block-stdout.txt | wc -c
|
95 |
## stderr: foo
|
96 |
## stdout: 10
|
97 |
|
98 |
|
99 |
exec {myfd}> $TMP/named-fd.txt
|
100 |
echo named-fd-contents >& $myfd
|
101 |
cat $TMP/named-fd.txt
|
102 |
## stdout: named-fd-contents
|
103 |
## status: 0
|
104 |
## N-I dash/mksh stdout-json: ""
|
105 |
## N-I dash/mksh status: 127
|
106 |
|
107 |
|
108 |
exec 20> "$TMP/double-digit-fd.txt"
|
109 |
echo hello20 >&20
|
110 |
cat "$TMP/double-digit-fd.txt"
|
111 |
## stdout: hello20
|
112 |
## BUG dash stdout-json: ""
|
113 |
## BUG dash status: 127
|
114 |
|
115 |
|
116 |
true 9> "$TMP/fd.txt"
|
117 |
( echo world >&9 )
|
118 |
cat "$TMP/fd.txt"
|
119 |
## stdout-json: ""
|
120 |
|
121 |
|
122 |
|
123 |
# mksh started being flaky on the continuous build and during release. We
|
124 |
# don't care! Related to issue #330.
|
125 |
case $SH in (mksh) exit ;; esac
|
126 |
|
127 |
: 3>&3
|
128 |
echo hello
|
129 |
## stdout: hello
|
130 |
## BUG mksh stdout-json: ""
|
131 |
## BUG mksh status: 0
|
132 |
|
133 |
|
134 |
: 3>&3-
|
135 |
echo hello
|
136 |
## stdout: hello
|
137 |
## N-I dash/mksh stdout-json: ""
|
138 |
## N-I mksh status: 1
|
139 |
## N-I dash status: 2
|
140 |
|
141 |
|
142 |
exec 3> "$TMP/fd.txt"
|
143 |
echo hello 3>&- << EOF
|
144 |
EOF
|
145 |
echo world >&3
|
146 |
exec 3>&- # close
|
147 |
cat "$TMP/fd.txt"
|
148 |
## STDOUT:
|
149 |
hello
|
150 |
world
|
151 |
## END
|
152 |
|
153 |
|
154 |
|
155 |
# different than case below because 3 is the likely first FD of open()
|
156 |
|
157 |
exec 3> "$TMP/fd3.txt"
|
158 |
echo hello >&3
|
159 |
echo world >&3
|
160 |
exec 3>&- # close
|
161 |
cat "$TMP/fd3.txt"
|
162 |
## STDOUT:
|
163 |
hello
|
164 |
world
|
165 |
## END
|
166 |
|
167 |
|
168 |
|
169 |
# different than the case above because because 4 isn't the likely first FD
|
170 |
|
171 |
exec 4> "$TMP/fd4.txt"
|
172 |
echo hello >&4
|
173 |
echo world >&4
|
174 |
exec 4>&- # close
|
175 |
cat "$TMP/fd4.txt"
|
176 |
## STDOUT:
|
177 |
hello
|
178 |
world
|
179 |
## END
|
180 |
|
181 |
|
182 |
f=''
|
183 |
echo s > "$f"
|
184 |
echo "result=$?"
|
185 |
set -o errexit
|
186 |
echo s > "$f"
|
187 |
echo DONE
|
188 |
## stdout: result=1
|
189 |
## status: 1
|
190 |
## OK dash stdout: result=2
|
191 |
## OK dash status: 2
|
192 |
|
193 |
|
194 |
# Notes:
|
195 |
# - 7/2021: descriptor 7 seems to work on all CI systems. The process state
|
196 |
# isn't clean, but we could probably close it in OSH?
|
197 |
# - dash doesn't allow file descriptors greater than 9. (This is a good
|
198 |
# thing, because the bash chapter in AOSA book mentions that juggling user
|
199 |
# vs. system file descriptors is a huge pain.)
|
200 |
# - But somehow running in parallel under spec-runner.sh changes whether
|
201 |
# descriptor 3 is open. e.g. 'echo hi 1>&3'. Possibly because of
|
202 |
# /usr/bin/time. The _tmp/spec/*.task.txt file gets corrupted!
|
203 |
# - Oh this is because I use time --output-file. That opens descriptor 3. And
|
204 |
# then time forks the shell script. The file descriptor table is inherited.
|
205 |
# - You actually have to set the file descriptor to something. What do
|
206 |
# configure and debootstrap too?
|
207 |
|
208 |
opened=$(ls /proc/$$/fd)
|
209 |
if echo "$opened" | egrep '^7$'; then
|
210 |
echo "FD 7 shouldn't be open"
|
211 |
echo "OPENED:"
|
212 |
echo "$opened"
|
213 |
fi
|
214 |
|
215 |
echo hi 1>&7
|
216 |
## stdout-json: ""
|
217 |
## status: 1
|
218 |
## OK dash status: 2
|
219 |
|
220 |
|
221 |
# What is the point of this? ./configure scripts and debootstrap use it.
|
222 |
exec 3>&1
|
223 |
echo hi 1>&3
|
224 |
## stdout: hi
|
225 |
## status: 0
|
226 |
|
227 |
|
228 |
# What is the point of this? ./configure scripts and debootstrap use it.
|
229 |
exec 3>&1
|
230 |
exec 4>&1
|
231 |
echo three 1>&3
|
232 |
echo four 1>&4
|
233 |
## STDOUT:
|
234 |
three
|
235 |
four
|
236 |
## END
|
237 |
## status: 0
|
238 |
|
239 |
|
240 |
echo XX >| $TMP/c.txt
|
241 |
|
242 |
set -o noclobber
|
243 |
|
244 |
echo YY > $TMP/c.txt # not clobber
|
245 |
echo status=$?
|
246 |
|
247 |
cat $TMP/c.txt
|
248 |
echo ZZ >| $TMP/c.txt
|
249 |
|
250 |
cat $TMP/c.txt
|
251 |
## STDOUT:
|
252 |
status=1
|
253 |
XX
|
254 |
ZZ
|
255 |
## END
|
256 |
## OK dash STDOUT:
|
257 |
status=2
|
258 |
XX
|
259 |
ZZ
|
260 |
## END
|
261 |
|
262 |
|
263 |
tmp="$(basename $SH)-$$.txt" # unique name for shell and test case
|
264 |
#echo $tmp
|
265 |
|
266 |
stdout_stderr.py &> $tmp
|
267 |
|
268 |
# order is indeterminate
|
269 |
grep STDOUT $tmp
|
270 |
grep STDERR $tmp
|
271 |
|
272 |
## STDOUT:
|
273 |
STDOUT
|
274 |
STDERR
|
275 |
## END
|
276 |
## N-I dash stdout: STDOUT
|
277 |
## N-I dash stderr: STDERR
|
278 |
## N-I dash status: 1
|
279 |
|
280 |
|
281 |
|
282 |
# dash, mksh don't implement this bash behaviour.
|
283 |
case $SH in (dash|mksh) exit 1 ;; esac
|
284 |
|
285 |
tmp="$(basename $SH)-$$.txt" # unique name for shell and test case
|
286 |
|
287 |
stdout_stderr.py >&$tmp
|
288 |
|
289 |
# order is indeterminate
|
290 |
grep STDOUT $tmp
|
291 |
grep STDERR $tmp
|
292 |
|
293 |
## STDOUT:
|
294 |
STDOUT
|
295 |
STDERR
|
296 |
## END
|
297 |
## N-I dash/mksh status: 1
|
298 |
## N-I dash/mksh stdout-json: ""
|
299 |
|
300 |
|
301 |
exec 5> "$TMP/f.txt"
|
302 |
echo hello >&5
|
303 |
exec 5>&-
|
304 |
echo world >&5
|
305 |
cat "$TMP/f.txt"
|
306 |
## STDOUT:
|
307 |
hello
|
308 |
## END
|
309 |
|
310 |
|
311 |
exec 5> "$TMP/f.txt"
|
312 |
echo hello5 >&5
|
313 |
exec 6>&5-
|
314 |
echo world5 >&5
|
315 |
echo world6 >&6
|
316 |
exec 6>&-
|
317 |
cat "$TMP/f.txt"
|
318 |
## STDOUT:
|
319 |
hello5
|
320 |
world6
|
321 |
## END
|
322 |
## N-I dash status: 2
|
323 |
## N-I dash stdout-json: ""
|
324 |
## N-I mksh status: 1
|
325 |
## N-I mksh stdout-json: ""
|
326 |
|
327 |
|
328 |
|
329 |
# 7/2021: descriptor 8 is open on Github Actions, so use descriptor 6 instead
|
330 |
|
331 |
# Fix for CI systems where process state isn't clean: Close descriptors 6 and 7.
|
332 |
exec 6>&- 7>&-
|
333 |
|
334 |
opened=$(ls /proc/$$/fd)
|
335 |
if echo "$opened" | egrep '^7$'; then
|
336 |
echo "FD 7 shouldn't be open"
|
337 |
echo "OPENED:"
|
338 |
echo "$opened"
|
339 |
fi
|
340 |
if echo "$opened" | egrep '^6$'; then
|
341 |
echo "FD 6 shouldn't be open"
|
342 |
echo "OPENED:"
|
343 |
echo "$opened"
|
344 |
fi
|
345 |
|
346 |
exec 7> "$TMP/f.txt"
|
347 |
: 6>&7 7>&-
|
348 |
echo hello >&7
|
349 |
: 6>&7-
|
350 |
echo world >&7
|
351 |
exec 7>&-
|
352 |
cat "$TMP/f.txt"
|
353 |
|
354 |
## status: 1
|
355 |
## stdout-json: ""
|
356 |
|
357 |
## OK dash status: 2
|
358 |
|
359 |
## BUG bash status: 0
|
360 |
## BUG bash stdout: hello
|
361 |
|
362 |
|
363 |
echo first >$TMP/rw.txt
|
364 |
exec 8<>$TMP/rw.txt
|
365 |
read line <&8
|
366 |
echo line=$line
|
367 |
echo second 1>&8
|
368 |
echo CONTENTS
|
369 |
cat $TMP/rw.txt
|
370 |
## STDOUT:
|
371 |
line=first
|
372 |
CONTENTS
|
373 |
first
|
374 |
second
|
375 |
## END
|
376 |
|
377 |
|
378 |
rm -f "$TMP/f.pipe"
|
379 |
mkfifo "$TMP/f.pipe"
|
380 |
exec 8<> "$TMP/f.pipe"
|
381 |
echo first >&8
|
382 |
echo second >&8
|
383 |
read line1 <&8
|
384 |
read line2 <&8
|
385 |
exec 8<&-
|
386 |
echo line1=$line1 line2=$line2
|
387 |
## stdout: line1=first line2=second
|
388 |
|
389 |
|
390 |
|
391 |
# Fix for flaky tests: dash behaves non-deterministically under load! It
|
392 |
# doesn't implement the behavior anyway so I don't care why.
|
393 |
case $SH in
|
394 |
*dash)
|
395 |
exit 1
|
396 |
;;
|
397 |
esac
|
398 |
|
399 |
echo "ok" > $TMP/f.txt
|
400 |
stdout_stderr.py &>> $TMP/f.txt
|
401 |
grep ok $TMP/f.txt >/dev/null && echo 'ok'
|
402 |
grep STDOUT $TMP/f.txt >/dev/null && echo 'ok'
|
403 |
grep STDERR $TMP/f.txt >/dev/null && echo 'ok'
|
404 |
## STDOUT:
|
405 |
ok
|
406 |
ok
|
407 |
ok
|
408 |
## END
|
409 |
## N-I dash stdout-json: ""
|
410 |
## N-I dash status: 1
|
411 |
|
412 |
|
413 |
exec 5>$TMP/log.txt
|
414 |
echo hi >&5
|
415 |
set -o >&5
|
416 |
echo done
|
417 |
## STDOUT:
|
418 |
done
|
419 |
## END
|
420 |
|
421 |
|
422 |
echo hi 9>&1
|
423 |
# trivia: 23 is the max descriptor for mksh
|
424 |
#echo hi 24>&1
|
425 |
echo hi 99>&1
|
426 |
echo hi 100>&1
|
427 |
## OK osh STDOUT:
|
428 |
hi
|
429 |
hi
|
430 |
hi 100
|
431 |
## END
|
432 |
## STDOUT:
|
433 |
hi
|
434 |
hi 99
|
435 |
hi 100
|
436 |
## END
|
437 |
## BUG bash STDOUT:
|
438 |
hi
|
439 |
hi
|
440 |
hi
|
441 |
## END
|
442 |
|
443 |
|
444 |
# oil 0.8.pre4 fails to restore fds after redirection failure. In the
|
445 |
# following case, the fd frame remains after the redirection failure
|
446 |
# "2> /" so that the effect of redirection ">/dev/null" remains after
|
447 |
# the completion of the command.
|
448 |
: >/dev/null 2> /
|
449 |
echo hello
|
450 |
## stdout: hello
|
451 |
## OK dash stdout-json: ""
|
452 |
## OK dash status: 2
|
453 |
## OK mksh stdout-json: ""
|
454 |
## OK mksh status: 1
|
455 |
# dash/mksh terminates the execution of script on the redirection.
|
456 |
|
457 |
|
458 |
# oil 0.8.pre4 does not fail with non-existent fd 100.
|
459 |
fd=100
|
460 |
echo foo >&$fd
|
461 |
## stdout-json: ""
|
462 |
## status: 1
|
463 |
## OK dash status: 2
|
464 |
|
465 |
|
466 |
# 1. prepare default fd for internal uses
|
467 |
minfd=10
|
468 |
case ${SH##*/} in
|
469 |
(mksh) minfd=24 ;;
|
470 |
(osh) minfd=100 ;;
|
471 |
esac
|
472 |
|
473 |
# 2. prepare first unused fd
|
474 |
fd=$minfd
|
475 |
is-fd-open() { : >&$1; }
|
476 |
while is-fd-open "$fd"; do
|
477 |
: $((fd+=1))
|
478 |
|
479 |
# prevent infinite loop for broken oils-for-unix
|
480 |
if test $fd -gt 1000; then
|
481 |
break
|
482 |
fi
|
483 |
done
|
484 |
|
485 |
# 3. test
|
486 |
echo foo >&$fd
|
487 |
## stdout-json: ""
|
488 |
## status: 1
|
489 |
## OK dash status: 2
|
490 |
|
491 |
|
492 |
# mksh, dash do not implement {fd} redirections.
|
493 |
case $SH in (mksh|dash) exit 1 ;; esac
|
494 |
# oil 0.8.pre4 fails to close fd by {fd}&-.
|
495 |
exec {fd}>file1
|
496 |
echo foo >&$fd
|
497 |
exec {fd}>&-
|
498 |
echo bar >&$fd
|
499 |
cat file1
|
500 |
## stdout: foo
|
501 |
## N-I mksh/dash stdout-json: ""
|
502 |
## N-I mksh/dash status: 1
|