+# kboot-mkconfig helper script.
+# Copyright (C) 2011 Antonio Ospite <ospite@studenti.unina.it>
+#
+# Inspired by the 10_linux script from kboot
+#
+# 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 progra, 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 software. If not, see <http://www.gnu.org/licenses/>.
+
+prefix=/usr
+exec_prefix=${prefix}
+bindir=${exec_prefix}/bin
+libdir=${exec_prefix}/lib
+
+LINUX_ROOT_DEVICE="$(mount | grep ' / ' | cut -d ' ' -f 1)"
+
+if $(which gettext >/dev/null 2>/dev/null) ; then
+ gettext="gettext"
+else
+ gettext="echo"
+fi
+
+# One layer of quotation is eaten by "", the second by sed, and the third by
+# printf; so this turns ' into \'. Note that you must use the output of
+# this function in a printf format string.
+gettext_quoted () {
+ $gettext "$@" | sed "s/'/'\\\\\\\\''/g"
+}
+
+# Run the first argument through gettext_quoted, and then pass that and all
+# remaining arguments to printf. This is a useful abbreviation and tends to
+# be easier to type.
+gettext_printf () {
+ local format="$1"
+ shift
+ printf "$(gettext_quoted "$format")" "$@"
+}
+
+kboot_file_is_not_garbage ()
+{
+ if test -f "$1" ; then
+ case "$1" in
+ *.dpkg-*) return 1 ;; # debian dpkg
+ README*) return 1 ;; # documentation
+ esac
+ else
+ return 1
+ fi
+ return 0
+}
+
+version_test_gt ()
+{
+ local sedexp="s/[^-]*-//;s/[._-]\(pre\|rc\|test\|git\|old\|trunk\)/~\1/g"
+ local a=`echo $1 | sed -e "$sedexp"`
+ local b=`echo $2 | sed -e "$sedexp"`
+ local cmp=gt
+ if [ "x$b" = "x" ] ; then
+ return 0
+ fi
+ case $a:$b in
+ *.old:*.old) ;;
+ *.old:*) a=`echo -n $a | sed -e s/\.old$//` ; cmp=gt ;;
+ *:*.old) b=`echo -n $b | sed -e s/\.old$//` ; cmp=ge ;;
+ esac
+ dpkg --compare-versions "$a" $cmp "$b"
+ return $?
+}
+
+version_find_latest ()
+{
+ local a=""
+ for i in $@ ; do
+ if version_test_gt "$i" "$a" ; then
+ a="$i"
+ fi
+ done
+ echo "$a"
+}
+
+linux_entry ()
+{
+ os="$1"
+ version="$2"
+ recovery="$3"
+ args="$4"
+ if ${recovery} ; then
+ title="$(gettext_quoted "%s, with Linux %s (recovery mode)")"
+ else
+ title="$(gettext_quoted "%s, with Linux %s")"
+ fi
+ label="$(printf "${title}" "${os}" "${version}")"
+ echo -n "'${label}'='${dirname}/${basename} "
+ if test -n "${initrd}" ; then
+ echo -n "initrd=${dirname}/${initrd}"
+ fi
+ echo " root=${linux_root_device_thisversion} ro ${args}'"
+}
+
+list_kernels ()
+{
+ list=`for i in /boot/vmlinuz-* /boot/vmlinux-* /vmlinuz-* /vmlinux-* ; do
+ if kboot_file_is_not_garbage "$i" ; then echo -n "$i " ; fi
+ done`
+ prepare_boot_cache=
+
+ while [ "x$list" != "x" ] ; do
+ linux=`version_find_latest $list`
+ echo "Found linux image: $linux" >&2
+ basename=`basename $linux`
+ dirname=`dirname $linux`
+
+ # XXX: this relies on a binary shipped by GRUB, we just use ${dirname} for
+ # now, check the ${dirname} entries if we need something like that later
+ #rel_dirname=`make_system_path_relative_to_its_root $dirname`
+
+ version=`echo $basename | sed -e "s,^[^0-9]*-,,g"`
+ alt_version=`echo $version | sed -e "s,\.old$,,g"`
+ linux_root_device_thisversion="${LINUX_ROOT_DEVICE}"
+
+ initrd=
+ for i in "initrd.img-${version}" "initrd-${version}.img" \
+ "initrd-${version}" "initramfs-${version}.img" \
+ "initrd.img-${alt_version}" "initrd-${alt_version}.img" \
+ "initrd-${alt_version}" "initramfs-${alt_version}.img"; do
+ if test -e "${dirname}/${i}" ; then
+ initrd="$i"
+ break
+ fi
+ done
+
+ initramfs=
+ for i in "config-${version}" "config-${alt_version}"; do
+ if test -e "${dirname}/${i}" ; then
+ initramfs=`grep CONFIG_INITRAMFS_SOURCE= "${dirname}/${i}" | cut -f2 -d= | tr -d \"`
+ break
+ fi
+ done
+
+ if test -n "${initrd}" ; then
+ echo "Found initrd image: ${dirname}/${initrd}" >&2
+ elif test -z "${initramfs}" ; then
+ # "UUID=" magic is parsed by initrd or initramfs. Since there's
+ # no initrd or builtin initramfs, it can't work here.
+ linux_root_device_thisversion=${KBOOT_DEVICE}
+ fi
+
+ linux_entry "${OS}" "${version}" false \
+ "${KBOOT_CMDLINE_LINUX} ${KBOOT_CMDLINE_LINUX_DEFAULT}"
+ if [ "x${KBOOT_DISABLE_RECOVERY}" != "xtrue" ]; then
+ linux_entry "${OS}" "${version}" true \
+ "single ${KBOOT_CMDLINE_LINUX}"
+ fi
+
+ list=`echo $list | tr ' ' '\n' | grep -vx $linux | tr '\n' ' '`
+ done
+}
projects / kboot-utils.git / commitdiff