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#!/bin/sh
#
# Copyright ©: 2010, Modestas Vainius <modax@debian.org>
#
# 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/>.
libeatmydata="@libdir@/libeatmydata"
name="eatmydata"
if [ "x`uname`" = "xDarwin" ]; then
libeatmydata="$libeatmydata.dylib"
else
libeatmydata="$libeatmydata.so"
fi
eatmydata_error()
{
echo "$name error: $1" >&2
exit 1
}
eatmydata_exec()
{
local cmd
cmd="$1"
if [ "${cmd#*/*}" = "${cmd}" ]; then
# $cmd does not contain '/'. Look in $PATH avoiding loops with self.
local self save_ifs path exe ok
self="`readlink -f "$0"`"
save_ifs="$IFS"
IFS=":"
ok=""
for path in $PATH; do
exe="${path}/$cmd"
# Avoid loops with self
if [ -x "$exe" ] && [ "`readlink -f "$exe"`" != "$self" ]; then
ok="yes"
break
fi
done
IFS="$save_ifs"
if [ -n "$ok" ]; then
cmd="$exe"
else
eatmydata_error "unable to find '$cmd' in PATH"
fi
fi
# Preload libeatmydata
if [ `uname` = "Darwin" ]; then
export DYLD_FORCE_FLAT_NAMESPACE=1
export DYLD_INSERT_LIBRARIES="$libeatmydata"
else
if [ -n "$LD_PRELOAD" ]; then
export LD_PRELOAD="$libeatmydata $LD_PRELOAD"
else
export LD_PRELOAD="$libeatmydata"
fi
fi
# Execute requested command
shift
exec "$cmd" "$@"
}
# Verify environment
if [ ! -f "$libeatmydata" ]; then
eatmydata_error "could not find $name library $libeatmydata"
fi
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