preinst is in texlive-fonts-recommended 2009-15.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
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# common.functions.preinst start
# $Id: common.functions.preinst 3435 2008-06-23 19:54:16Z frank $
dpkg_md5sum()
{
conffile="$1"
package="$2"
md5sum=$(dpkg-query -W -f='${Conffiles}' "$package" \
| grep -F " $conffile " | cut -d ' ' -f 3)
if [ -z "$md5sum" ]; then
echo "$conffile: md5sum not known." >&2
echo "It seems that this file is not handled by dpkg conffiles." >&2
# don't exit but return empty md5sum
md5sum=""
# exit 1
fi
echo $md5sum
}
check_move ()
{
dodelete="$1"
orig="$2"
local package
package="$3"
new="$4"
version="$5"
if [ -r "$orig" ] ; then
mdorig=$(dpkg_md5sum "$orig" "$package")
if [ $(md5sum "$orig" | cut -f 1 -d ' ') = "$mdorig" ] ; then
rm "$orig"
else
mkdir -p $(dirname "$new")
mv "$orig" "$new".preinst-copy
fi
else
if [ -n "$version" ]; then
# there is a previous version, we are actually upgrading
# (or reinstalling)
# in case we handle a foreign conffile (different package) $dodelete
# can be set to 0 (or != 1) in which case the .preinst-deleted file
# will not be created.
if [ "$dodelete" = 1 ] ; then
mkdir -p $(dirname "$new")
touch $new.preinst-deleted
fi
fi
fi
}
#
# handle_config_file_preinst/postinst/prerm/postrm
# handle those config files which are left over from old texlive and
# tetex installations
handle_config_file_preinst ()
{
cfgfile="$1"
action="$2"
version="$3"
upgrade_needed=false
case "$action" in
install|upgrade)
if [ -n "$version" ] && dpkg --compare-versions "$version" ge 2007; then
return 0
fi
;;
*)
return 0
;;
esac
conf_relpath=${cfgfile#/etc/texmf/}
conf_oldpath="/etc/texmf/texlive/$conf_relpath"
# default package is texlive-base-bin
package=texlive-base-bin
case "$cfgfile" in
/etc/texmf/dvips/config/*)
# special case for dvips config
conf_oldpath="/etc/texmf/texlive/dvips/${conf_oldpath#/etc/texmf/texlive/dvips/config/}"
;;
# files which were only present in tetex
/etc/texmf/texdoctk/texdoctk.dat)
package=tetex-base
conf_oldpath="/etc/texdoctk/texdoctk.dat"
;;
# symlink target had a different name
/etc/texmf/dvipdfm/config/config)
conf_oldpath="/etc/texmf/texlive/dvipdfm.cfg"
;;
# for xdvi.cfg we first want to move tetex files, and later texlives
/etc/texmf/xdvi/xdvi.cfg)
# tetex version
# it could either be deleted, or tetex was never installed.
# We do not want to create .preinst-deleted, so we call
# check_move with first argument 0 which means that the
# preinst-deleted file will not be created
check_move 0 /etc/texmf/xdvi.cfg tetex-bin /etc/texmf/xdvi/xdvi.cfg $version
# now set the conf_oldpath to the texlive version
conf_oldpath="/etc/texmf/texlive/xdvi.cfg"
;;
esac
check_move 1 $conf_oldpath $package $cfgfile $version
}
resurrect_conffile_sid(){
cfgfile="$1"
package="$2"
action="$3"
version="$4"
template_source="/usr/share/$package"
basefile=$(basename $cfgfile)
dirname=$(dirname $cfgfile)
# continue only in the following cases:
# - we are upgrading
# - at least from version 2007 (not etch=2005)
case "$action" in
upgrade)
if [ -n "$version" ] && dpkg --compare-versions "$version" ge 2007; then
: do nothing
else
return 0
fi
;;
*)
return 0
;;
esac
if ! [ -f "$cfgfile" ]; then
mkdir -p $dirname
echo "Reinstalling deleted mandatory conffile $basefile" >&2
cp $template_source/$basefile $cfgfile
fi
}
# common.functions.preinst end
# Local Variables:
# mode: shell-script
# End:
# vim:set expandtab: #
# preinst.pre
# $Id: preinst.pre 2583 2007-03-15 20:12:56Z frank $
# we want to be sure that experimental versions are purged before
# the first unstable is installed
# furthermore check that we are at least at version 2005 for the
# temporary tetex packages upgrades
case "$1" in
upgrade|install)
old_version=$2
if [ -n "$old_version" ] && dpkg --compare-versions "$old_version" lt 2005-2 && dpkg --compare-versions "$old_version" gt 2005 ; then
echo "Upgrade from experimental versions are not supported!" >&2
echo "Please purge all texlive packages before installation." >&2
exit 1
fi
;;
esac
# end preinst.pre
exit 0
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