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#! /bin/sh
# Run a test script of the coreutils test scripts, picking up the right
# interpreter (i.e., perl or the shell) and the right flags for it.
#
# Copyright (C) 2011-2012 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 <http://www.gnu.org/licenses/>.
#
# ---------------------------------- #
# Readonly variables and functions #
# ---------------------------------- #
# Help to avoid typo-related bugs.
set -u
me=shell-or-perl
fatal_ ()
{
echo "$me: $*" >&2
# Exit with status '99' to inform the testsuite harness that an
# hard error occurred.
exit 99
}
print_help_ ()
{
cat <<EOH
Usage: $me [--help] [--srcdir DIR] [--shell SHELL-CMD] [--perl PERL-CMD]
[--test-name NAME-WITHOUT-VPATH] TEST-SCRIPT [ARGS..]
EOH
}
# ---------------- #
# Option parsing #
# ---------------- #
assign_optarg_to_var='
test $# -gt 1 || fatal_ "option '\''$1'\'' requires an argument"
eval "$var=\$2"
shift'
srcdir=${srcdir-.}
cu_PERL=${PERL-perl}
cu_SHELL=/bin/sh # Getting $SHELL from the environment is dangerous.
test_name=
while test $# -gt 0; do
var=
case $1 in
--help) print_help_; exit $?;;
--shell) var=cu_SHELL;;
--perl) var=cu_PERL;;
--srcdir) var=srcdir;;
--test-name) var=test_name;;
--) shift; break;;
-*) fatal_ "unknown option '$1'";;
*) break;;
esac
test -z "$var" || eval "$assign_optarg_to_var"
shift
done
unset assign_optarg_to_var var
case $# in
0) fatal_ "missing argument";;
*) test_script=$1; shift;;
esac
test -z "$test_name" && test_name=$test_script
# --------------------- #
# Run the test script #
# --------------------- #
test -f "$test_script" && test -r "$test_script" \
|| fatal_ "test script '$test_script' does not exist, or isn't readable"
read shebang_line < "$test_script" \
|| fatal_ "cannot read from the test script '$test_script'"
case $shebang_line in
'#!/usr/bin/perl'*)
# The test is a perl script.
exec $cu_PERL -w -I"$srcdir" -MCoreutils -MCuSkip \
-M"CuTmpdir qw($test_name)" -- "$test_script" ${1+"$@"}
;;
*)
# Assume the test is a shell script.
exec $cu_SHELL "$test_script" ${1+"$@"}
esac
# ------------- #
# Not reached #
# ------------- #
fatal_ "dead code reached"
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