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hush: fix var=exit 2 not setting $? to 2

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2010-05-20 14:27:09 +02:00
parent 131ed3bcc9
commit cddbb610cb
3 changed files with 59 additions and 5 deletions
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27
shell/hush_test/hush-psubst/falsetick.right Normal file
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@@ -0,0 +1,27 @@
0
0
0
0
2
2
2
2
hush: can't open '/does/not/exist': No such file or directory
1
hush: can't open '/does/not/exist': No such file or directory
1
hush: can't open '/does/not/exist': No such file or directory
1
hush: can't open '/does/not/exist': No such file or directory
1
hush: can't open '/does/not/exist': No such file or directory
1
hush: can't open '/does/not/exist': No such file or directory
1
hush: can't open '/does/not/exist': No such file or directory
1
hush: can't open '/does/not/exist': No such file or directory
1
hush: can't open '/does/not/exist': No such file or directory
1
Done: a=b

22
shell/hush_test/hush-psubst/falsetick.tests Executable file
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# Exitcode 0 (`` has no exitcode, but assignment has):
true; a=``; echo $?
false; a=``; echo $?
true; a=$(); echo $?
false; a=$(); echo $?
# Exitcode 2 (`cmd` expansion sets exitcode after assignment set it to 0):
true; a=`exit 2`; echo $?
false; a=`exit 2`; echo $?
true; a=$(exit 2); echo $?
false; a=$(exit 2); echo $?
# Exitcode 1 (redirect sets exitcode to 1 on error after them):
true; a=`` >/does/not/exist; echo $?
false; a=`` >/does/not/exist; echo $?
true; a=$() >/does/not/exist; echo $?
false; a=$() >/does/not/exist; echo $?
true; a=`exit 2` >/does/not/exist; echo $?
false; a=`exit 2` >/does/not/exist; echo $?
true; a=$(exit 2) >/does/not/exist; echo $?
false; a=$(exit 2) >/does/not/exist; echo $?
# ...and assignment still happens despite redirect error:
true; a=$(echo b) >/does/not/exist; echo $?
echo "Done: a=$a"