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fpm/templates/deb/prerm_upgrade.sh.erb
2015-04-09 23:17:54 -06:00

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#!/bin/sh
before_remove() {
<%# Making sure that at least one command is in the function -%>
<%# avoids a lot of potential errors, including the case that -%>
<%# the script is non-empty, but just whitespace and/or comments -%>
:
<% if script?(:before_remove) -%>
<%= script(:before_remove) %>
<% end -%>
}
dummy() {
:
}
if [ "${1}" = "remove" -a -z "${2}" ]
then
# "before remove" goes here
before_remove
elif [ "${1}" = "upgrade" ]
then
# Executed before the old version is removed
# upon upgrade.
# We should generally not do anything here. The newly installed package
# should do the upgrade, not the uninstalled one, since it can't anticipate
# what new things it will have to do to upgrade for the new version.
dummy
elif echo "${1}" | grep -E -q "(fail|abort)"
then
echo "Failed to install before the pre-removal script was run." >&2
exit 1
fi