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72 lines
1.9 KiB
Bash
Executable File
72 lines
1.9 KiB
Bash
Executable File
#!/bin/sh
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# Test --debug output
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# Copyright (C) 2025-2026 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ tail
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# Terminate any background tail process
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cleanup_() { kill $pid 2>/dev/null && wait $pid; }
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cleanup_fail_ ()
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{
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warn_ $1
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cleanup_
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fail=1
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}
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# $check_re - string to be found
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# $check_f - file to be searched
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check_tail_output_ ()
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{
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local delay="$1"
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grep "$check_re" $check_f > /dev/null ||
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{ sleep $delay ; return 1; }
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}
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grep_timeout_ ()
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{
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check_re="$1"
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check_f="$2"
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retry_delay_ check_tail_output_ .1 5
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}
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timeout 10 tail --debug -f /dev/null 2>debug.out & pid=$!
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grep_timeout_ 'tail: using blocking mode' 'debug.out' || fail=1
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cleanup_
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timeout 10 tail --debug -F /dev/null 2>debug.out & pid=$!
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grep_timeout_ 'tail: using polling mode' 'debug.out' || fail=1
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cleanup_
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touch file.debug
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require_strace_ 'inotify_add_watch'
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returns_ 124 timeout .1 strace -e inotify_add_watch -o strace.out \
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tail -F file.debug || fail=1
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if grep 'inotify' strace.out; then
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timeout 10 tail --debug -n0 -f file.debug 2>debug.out & pid=$!
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grep_timeout_ 'tail: using notification mode' 'debug.out' || fail=1
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cleanup_
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timeout 10 tail --debug ---disable-inotify -f file.debug 2>debug.out & pid=$!
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grep_timeout_ 'tail: using polling mode' 'debug.out' || fail=1
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cleanup_
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fi
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Exit $fail
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