6193defe9f
* util/update-grub_lib.in (font_path): New function. Determine wether a font file can be found and, if so, echo the GRUB path to it. * util/update-grub.in: Handle multiple terminals depending on user input, platform availability and font file presence. Propagate variables of our findings to /etc/grub.d/ children. * util/grub.d/00_header.in: Handle multiple terminals, based on environment setup by update-grub.
111 lines
2.8 KiB
Text
111 lines
2.8 KiB
Text
# Helper library for update-grub
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# Copyright (C) 2007 Free Software Foundation, Inc.
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#
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# This file is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St - Suite 330, Boston, MA 02110, USA.
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transform="@program_transform_name@"
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prefix=@prefix@
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exec_prefix=@exec_prefix@
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sbindir=@sbindir@
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grub_probe=${sbindir}/`echo grub-probe | sed ${transform}`
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make_system_path_relative_to_its_root ()
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{
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path=$1
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# abort if file doesn't exist
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if test -e $path ; then : ;else
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return 1
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fi
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# canonicalize
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if path=`readlink -f $path` ; then : ; else
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return 1
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fi
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# if not a directory, climb up to the directory containing it
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if test -d $path ; then
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dir=$path
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else
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dir=`echo $path | sed -e "s,/[^/]*$,,g"`
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fi
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num=`stat -c %d $dir`
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# this loop sets $dir to the root directory of the filesystem we're inspecting
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while : ; do
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parent=`readlink -f $dir/..`
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if [ "x`stat -c %d $parent`" = "x$num" ] ; then : ; else
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# $parent is another filesystem; we found it.
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break
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fi
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if [ "x$dir" = "x/" ] ; then
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# / is our root.
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break
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fi
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dir=$parent
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done
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echo $path | sed -e "s,^$dir,/,g" -e "s,//,/,g"
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}
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convert_system_path_to_grub_path ()
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{
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path=$1
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# abort if file doesn't exist
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if test -e $path ; then : ;else
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return 1
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fi
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# abort if file is in a filesystem we can't read
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if ${grub_probe} -t fs $path > /dev/null 2>&1 ; then : ; else
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return 1
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fi
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if drive=`${grub_probe} -t drive $path` ; then : ; else
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return 1
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fi
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if relative_path=`make_system_path_relative_to_its_root $path` ; then : ; else
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return 1
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fi
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# remove any trailing slash, even if that slash is everything we have
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relative_path=`echo ${relative_path} | sed -e "s,/*$,,g"`
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echo ${drive}${relative_path}
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}
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font_path ()
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{
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if [ "x${GRUB_FONT_PATH}" = "x" ] ; then : ; else
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echo "${GRUB_FONT_PATH}"
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return 0
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fi
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# Prefer system path for space reasons (/boot/grub might be a very small
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# partition in case of OpenFirmware, etc).
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for i in /usr/share/grub/unifont.pff /boot/grub/unifont.pff ; do
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if path=`convert_system_path_to_grub_path $i` ; then
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GRUB_FONT_PATH="${path}"
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echo "${GRUB_FONT_PATH}"
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return 0
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fi
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done
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return 1
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}
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