2 # Ensure tail -F distinguishes output with the correct headers
3 # Between coreutils 7.5 and 8.23 inclusive, 'tail -F ...' would
4 # not output headers for or created/renamed files in certain cases.
6 # Copyright (C) 2015-2016 Free Software Foundation, Inc.
8 # This program is free software: you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation, either version 3 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
21 .
"${srcdir=.}/tests/init.sh"; path_prepend_ .
/src
27 grep "$tail_re" out ||
28 { sleep $delay; return 1; }
31 # Terminate any background tail process
32 cleanup_
() { kill $pid 2>/dev
/null
&& wait $pid; }
34 # Speedup the non inotify case
35 fastpoll
='-s.1 --max-unchanged-stats=1'
37 for mode
in '' '---disable-inotify'; do
40 tail $mode -F $fastpoll a b
> out
2>&1 & pid
=$
!
42 # Wait up to 12.7s for tail to start.
43 tail_re
="cannot open 'b'" retry_delay_ check_tail_output
.1 7 ||
47 # Wait up to 12.7s for a's header to appear in the output:
48 tail_re
='==> a <==' retry_delay_ check_tail_output
.1 7 ||
49 { echo "$0: a: unexpected delay?"; cat out
; fail
=1; }
52 # Wait up to 12.7s for b's header to appear in the output:
53 tail_re
='==> b <==' retry_delay_ check_tail_output
.1 7 ||
54 { echo "$0: b: unexpected delay?"; cat out
; fail
=1; }