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29 lines
1 KiB
Diff
29 lines
1 KiB
Diff
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commit 5dce6bdfafc930dfd17d5d16aea7d1add3472066
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Author: Pádraig Brady <P@draigBrady.com>
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Date: Wed Mar 5 15:14:07 2014 +0000
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tests: fix false failure in nohup.sh in non tty builds
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* tests/misc/nohup.sh: When running tests without a controlling tty,
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an exec failure is triggered in a subshell, which causes POSIX
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shells to immediately exit the subshell. This was brought
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to notice by the newly conforming bash 4.3.
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Fixes http:/bugs.gnu.org/16940
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diff --git a/tests/misc/nohup.sh b/tests/misc/nohup.sh
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index 6d2b515..2328b43 100755
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--- a/tests/misc/nohup.sh
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+++ b/tests/misc/nohup.sh
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@@ -63,6 +63,11 @@ rm -f nohup.out err
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# to stderr must be fatal. Requires stdout to be terminal.
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if test -w /dev/full && test -c /dev/full; then
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(
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+ # POSIX shells immediately exit the subshell on exec error.
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+ # So check we can write to /dev/tty before the exec, which
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+ # isn't possible if we've no controlling tty for example.
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+ test -c /dev/tty && >/dev/tty || exit 0
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+
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exec >/dev/tty
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test -t 1 || exit 0
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nohup echo hi 2> /dev/full
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