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#!/bin/sh
# Verify that all options mentioned in usage are recognized by getopt.
# Copyright (C) 2017-2022 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
checkprg () {
prg="$1"
# Get stderr output for unrecognized options for later use as a pattern.
# Also consider the expected exit status of each program.
rcexp=1
case "$prg" in
dir | ls | printenv | sort | tty | vdir ) rcexp=2 ;;
env | chroot | nice | nohup | stdbuf | timeout ) rcexp=125 ;;
esac
# Write the pattern for a long, unknown option into a pattern file.
o='thisoptiondoesnotexist'
returns_ $rcexp $prg --$o >/dev/null 2> err || fail=1
grep -F "$o" err || framework_failure_
sed -n "1s/--$o/OPT/p" < err > pat || framework_failure_
# Append the pattern for a short unknown option.
returns_ $rcexp $prg -/ >/dev/null 2> err || fail=1
grep " '*/'*" err || framework_failure_
# The following only handles the common case that has single quotes,
# as it simplifies to identify missing options only on common systems.
sed -n "1s/'\/'/'OPT'/p" < err >> pat || framework_failure_
# Get output for --help.
$prg --help > help || fail=1
# Extract all options mention in the above --help output.
nl="
"
sed -n -e '/--version/q' \
-e 's/^ \{2,6\}-/-/; s/ .*//; s/[=[].*//; s/, /\'"$nl"'/g; s/^-/-/p' help \
> opts || framework_failure_
cat opts # for debugging purposes
# Test all options mentioned in usage (but --version).
while read opt; do
test "x$opt" = 'x--help' \
&& continue
# Append --help to be on the safe side: the option under test either
# requires a further argument, or --help triggers usage(); so $prg should
# exit without performing its regular operation.
# Add a 2nd --help for the 'env -u --help' case.
$prg "$opt" --help --help </dev/null >out 2>err1
rc=$?
# In the --help case, i.e., when the option under test has been accepted,
# the exit code should be Zero.
if [ $rc = 0 ]; then
compare help out || fail=1
else
# Else $prg should have complained about a missing argument.
# Catch false positives.
case "$prg/$opt" in
'pr/-COLUMN') continue;;
esac
# Replace $opt in stderr output by the neutral placeholder.
# Handle both long and short option error messages.
sed -e "s/$opt/OPT/" -e "s/'.'/'OPT'/" < err1 > err || framework_failure_
# Fail if the stderr output matches the above provoked error.
grep -Ff pat err && { fail=1; cat err1; }
fi
done < opts
}
for prg in $built_programs; do
case "$prg" in
# Skip utilities entirely which have special option parsing.
'[' | expr | stty )
continue;;
# Wrap some utilities known by the shell by env.
echo | false | kill | printf | pwd | test | true )
prg="env $prg";;
esac
checkprg $prg
done
Exit $fail
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