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|
#!/bin/bash
set -e
# enable all globbing that bash can do
shopt -s extglob
. /usr/share/debconf/confmodule
db_version 2.0
db_capb backup
db_settitle matlab-support/title
CONFIGFILE=/etc/matlab/debconf
# Load config file, if it exists.
if [ -e $CONFIGFILE ]; then
. $CONFIGFILE || true
db_set matlab-support/matlab-install-glob "$MATLAB_INSTALL_GLOB"
db_set matlab-support/mexbuild-user "$MATLAB_MEXBUILD_USER"
fi # load config file
# defaults
# where to look for matlabs
matlab_install_glob="$MATLAB_INSTALL_GLOB"
# matlab alternatives as a comma separated list for debconf's select widget
matlab_choices=""
# chosen default matlab version
matlab_default_version=""
# flag whether any previous chosen default version is still a valid choice
matlab_have_old_default=0
# make a good guess of where matlab is if it has never been configured
if [ -z "$matlab_install_glob" ]; then
# is there some matlab somewhere
if which matlab > /dev/null; then
# locate
matlab_bin="$(readlink -f $(which matlab))"
matlab_install_glob="$(dirname $(dirname $matlab_bin))"
db_set matlab-support/matlab-install-glob "$matlab_install_glob"
fi
fi
# This implements a simple state machine so the back button can be handled.
# taken from debconf demo example
STATE=1
while [ "$STATE" != 0 -a "$STATE" != 6 ]; do
case $STATE in
1)
if [ -z "$MATLAB_INSTALL_GLOB" ]; then
db_fset matlab-support/matlab-install-glob seen false
fi
db_input high matlab-support/matlab-install-glob || true
;;
2)
db_get matlab-support/matlab-install-glob
matlab_install_glob="$RET"
# no location is not good
if [ -z "$matlab_install_glob" ]; then
# fail in non-interactive mode
db_input critical matlab-support/no-matlab-found || \
{ echo "No matlab found and maybe running in non-interactive mode. No way out -- failing..."; exit 1; }
db_fset matlab-support/matlab-install-glob seen false
STATE=0
else
# preserve the old default version to check whether it is still
# there
db_get matlab-support/default-version
matlab_old_default="$RET"
# figure out what versions we have
for mpath in $matlab_install_glob; do
# ignore everything that doesn't look like matlab
[ ! -f $mpath/bin/mex ] && continue
# figure out the version
mver=$(grep "ver='" ${mpath}/bin/mex | cut -d "'" -f 2,2 | head -n1)
if [ -z "$mver" ]; then
# try alternative, more robust but heavy-weight approach
mver=$(echo version | ${mpath}/bin/matlab -nodesktop -nodisplay -nosplash 2>/dev/null \
| grep -A2 'ans =' | tail -1 || :)
fi
# somewhat friendly description of this Matlab installation
matlab_id="Matlab ${mver} @ ${mpath}"
# is that the old default?
if [ "$matlab_old_default" = "$matlab_id" ]; then
matlab_have_old_default=1
fi
# make comma-separated list of all choices
if [ -z "$matlab_choices" ]; then
matlab_choices=$matlab_id
else
matlab_choices="${matlab_choices}, $matlab_id"
fi
# configure alternatives
# cannot use plain 'mex' since there is such a binary in
# 'texlive-lang-polish'
update-alternatives --install /usr/bin/matlab matlab \
$mpath/bin/matlab -1 \
--slave /usr/bin/matlab-mex matlab-mex $mpath/bin/mex \
--slave /usr/bin/matlab-mbuild matlab-mbuild $mpath/bin/mbuild
done
fi
;;
3)
# make sure the selection gets displayed if the old default
# vanished
if [ $matlab_have_old_default -eq 0 ]; then
db_fset matlab-support/default-version seen false
fi
# we require at least one valid choice
if [ -z "$matlab_choices" ]; then
db_input critical matlab-support/no-matlab-found || true
db_fset matlab-support/matlab-install-glob seen false
STATE=0
else
# set the list of version choices
db_subst matlab-support/default-version choices $matlab_choices
db_input high matlab-support/default-version || true
fi
;;
4)
# make sure we have a default
db_get matlab-support/default-version
matlab_default_version="$RET"
if [ -z "$matlab_default_version" ]; then
db_input critical matlab-support/no-matlab-found || true
db_fset matlab-support/matlab-install-glob seen false
STATE=0
else
db_input high matlab-support/mexbuild-user || true
fi
;;
5)
db_input high matlab-support/rename-libs || true
;;
esac
if db_go; then
STATE=$(($STATE + 1))
else
STATE=$(($STATE - 1))
fi
done
db_stop
|
