preinst is in texlive-metapost 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.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | #!/bin/sh -e
# 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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