111 lines
2.7 KiB
Plaintext
111 lines
2.7 KiB
Plaintext
# Helper library for update-grub
|
|
# Copyright (C) 2007 Free Software Foundation, Inc.
|
|
#
|
|
# GRUB 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.
|
|
#
|
|
# GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
transform="@program_transform_name@"
|
|
|
|
prefix=@prefix@
|
|
exec_prefix=@exec_prefix@
|
|
sbindir=@sbindir@
|
|
|
|
grub_probe=${sbindir}/`echo grub-probe | sed ${transform}`
|
|
|
|
make_system_path_relative_to_its_root ()
|
|
{
|
|
path=$1
|
|
# abort if file doesn't exist
|
|
if test -e $path ; then : ;else
|
|
return 1
|
|
fi
|
|
|
|
# canonicalize
|
|
if path=`readlink -f $path` ; then : ; else
|
|
return 1
|
|
fi
|
|
|
|
# if not a directory, climb up to the directory containing it
|
|
if test -d $path ; then
|
|
dir=$path
|
|
else
|
|
dir=`echo $path | sed -e "s,/[^/]*$,,g"`
|
|
fi
|
|
|
|
num=`stat -c %d $dir`
|
|
|
|
# this loop sets $dir to the root directory of the filesystem we're inspecting
|
|
while : ; do
|
|
parent=`readlink -f $dir/..`
|
|
if [ "x`stat -c %d $parent`" = "x$num" ] ; then : ; else
|
|
# $parent is another filesystem; we found it.
|
|
break
|
|
fi
|
|
if [ "x$dir" = "x/" ] ; then
|
|
# / is our root.
|
|
break
|
|
fi
|
|
dir=$parent
|
|
done
|
|
|
|
echo $path | sed -e "s,^$dir,/,g" -e "s,//,/,g"
|
|
}
|
|
|
|
convert_system_path_to_grub_path ()
|
|
{
|
|
path=$1
|
|
|
|
# abort if file doesn't exist
|
|
if test -e $path ; then : ;else
|
|
return 1
|
|
fi
|
|
|
|
# abort if file is in a filesystem we can't read
|
|
if ${grub_probe} -t fs $path > /dev/null 2>&1 ; then : ; else
|
|
return 1
|
|
fi
|
|
|
|
if drive=`${grub_probe} -t drive $path` ; then : ; else
|
|
return 1
|
|
fi
|
|
|
|
if relative_path=`make_system_path_relative_to_its_root $path` ; then : ; else
|
|
return 1
|
|
fi
|
|
|
|
# remove any trailing slash, even if that slash is everything we have
|
|
relative_path=`echo ${relative_path} | sed -e "s,/*$,,g"`
|
|
|
|
echo ${drive}${relative_path}
|
|
}
|
|
|
|
font_path ()
|
|
{
|
|
if [ "x${GRUB_FONT_PATH}" = "x" ] ; then : ; else
|
|
echo "${GRUB_FONT_PATH}"
|
|
return 0
|
|
fi
|
|
|
|
# Prefer system path for space reasons (/boot/grub might be a very small
|
|
# partition in case of OpenFirmware, etc).
|
|
for i in /usr/share/grub/unifont.pff /boot/grub/unifont.pff ; do
|
|
if path=`convert_system_path_to_grub_path $i` ; then
|
|
GRUB_FONT_PATH="${path}"
|
|
echo "${GRUB_FONT_PATH}"
|
|
return 0
|
|
fi
|
|
done
|
|
|
|
return 1
|
|
}
|