debian-cd-clone/tools/boot/wheezy/common.sh

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# This file provides some common code that is intented to be called
# by the various boot-<arch> scripts.
# Make sure that sbin directories are on the PATH too - filesystem
# creation tools are often hidden there
PATH=/sbin:/usr/sbin:$PATH
export PATH
# Expand %ARCH% variable in envvars for location of D-I images
DI_WWW_HOME="$(echo "$DI_WWW_HOME" | sed -e "s|%ARCH%|$ARCH|g")"
DI_DIR="$(echo "$DI_DIR" | sed -e "s|%ARCH%|$ARCH|g")"
# Find out what the default desktop is in tasksel if we've not set it
# (i.e. using "all" for netinst, DVD etc.) - print the name of the
# first desktop task recommended by task-desktop
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UNSPEC_DESKTOP_DEFAULT="$($BASEDIR/tools/apt-selection cache depends task-desktop | \
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awk '
/Recommends:.*desktop/ {
gsub("task-","")
gsub("-desktop","")
print $2
exit
}')"
# Only i386 and amd64 support desktop selection with the 'light' and 'all'
# desktops; make sure other arches get a working config
if [ "$ARCH" != i386 ] && [ "$ARCH" != amd64 ]; then
case $DESKTOP in
all|gnome)
DESKTOP=
KERNEL_PARAMS="$(echo "$KERNEL_PARAMS" | \
sed -r "s/desktop=[^ ]* ?//")"
;;
light)
DESKTOP=xfce
KERNEL_PARAMS="$(echo "$KERNEL_PARAMS" | \
sed -r "s/(desktop=)light/\1xfce/")"
;;
esac
fi
# install_languages decompacts the language packs, you should give the path
# to the CD temporary tree.
# This function should be called for all bootable images.
install_languages() {
# Param $1 is the CD directory
if [ -f "$MIRROR/dists/$DI_CODENAME/main/disks-$ARCH/current/xlp.tgz" ]
then
mkdir $1/.xlp
(cd $1/.xlp; \
tar zxf $MIRROR/dists/$DI_CODENAME/main/disks-$ARCH/current/xlp.tgz )
fi
}
# Add an option to the mkisofs options for this CD _only_ if it's not
# already set. $1 is the opts file location, "$2" is the new
# option. Call this with _logical groupings_ of options
add_mkisofs_opt() {
OPTS_FILE=$1
NEW_OPT="$2"
if ! ( grep -q -- "$NEW_OPT" $OPTS_FILE 2>/dev/null) ; then
echo -n "$NEW_OPT " >> $OPTS_FILE
fi
}
variant_enabled() {
VARIANT=$1
echo "$VARIANTS" | grep -qw "$VARIANT"
return $?
}
# Wrapper around which_deb which looks in all relevant distributions
find_pkg_file() {
local pkgfile
for dist in $DI_CODENAME $CODENAME; do
pkgfile=$($BASEDIR/tools/which_deb $MIRROR $dist "$@")
[ -n "$pkgfile" ] && break
done
if [ -z "$pkgfile" ]; then
echo "WARNING: unable to find the $@ package in $DI_CODENAME or $CODENAME distribution of the mirror" >&2
fi
echo $pkgfile
}
# Work out the right boot load size for a specified file
calc_boot_size() {
FILE=$1
size=$[($(stat -c%s "$FILE")+2047)/2048]
echo $size
}