1#!/bin/sh 2# Ensure --version and --help options are processed before 3# any other options by some programs. 4 5# Copyright (C) 2019-2023 Free Software Foundation, Inc. 6 7# This program is free software: you can redistribute it and/or modify 8# it under the terms of the GNU General Public License as published by 9# the Free Software Foundation, either version 3 of the License, or 10# (at your option) any later version. 11 12# This program is distributed in the hope that it will be useful, 13# but WITHOUT ANY WARRANTY; without even the implied warranty of 14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15# GNU General Public License for more details. 16 17# You should have received a copy of the GNU General Public License 18# along with this program. If not, see <https://www.gnu.org/licenses/>. 19 20. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src 21print_ver_ yes 22 23programs="cksum dd hostid hostname link logname nohup 24sleep tsort unlink uptime users whoami yes" 25 26# All these variations should show the help/version screen 27# regardless of their position on the command line arguments. 28for prog in $programs; do 29 # skip if the program is not built (e.g., hostname) 30 case " $built_programs " in 31 *" $prog "*) ;; 32 *) continue;; 33 esac 34 35 for opt in --help --version; do 36 rm -f exp out1 out2 out3 || framework_failure_ 37 38 # Get the reference output 39 env $prog $opt >exp || fail=1 40 41 # Test: some other argument AFTER --help/--version. 42 env $prog $opt AFTER > out1 || fail=1 43 compare exp out1 || fail=1 44 45 # nohup is an exception: stops processing after first non-option parameter. 46 # E.g., "nohup df --help" should run "df --help", not "df --help". 47 if [ "$prog" = nohup ]; then 48 rm -f exp || framework_failure_ 49 df $opt > exp || framework_failure_ 50 BEFORE=df 51 else 52 BEFORE=BEFORE 53 fi 54 55 # Test: some other argument BEFORE --help/--version. 56 env $prog $BEFORE $opt > out2 || fail=1 57 compare exp out2 || fail=1 58 59 # Test: some other arguments BEFORE and AFTER --help/--version. 60 env $prog $BEFORE $opt AFTER > out3 || fail=1 61 compare exp out3 || fail=1 62 done 63done 64 65# After end-of-options marker (--), the options should not be parsed. 66# Test with 'yes', and assume the common code will work the 67# same for the other programs. 68cat >exp <<\EOF || framework_failure_ 69--help 70EOF 71env yes -- --help | head -n1 > out 72compare exp out || fail=1 73 74Exit $fail 75