postinst is in semi 1.14.7~0.20120428-22.
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 | #!/bin/sh
set -e
if [ ! -e /var/lib/emacsen-common/state/package/installed/emacsen-common ]; then
    # Fallback to emacsen-common 1.x
    if [ "$1" = "configure" ] && [ -x /usr/lib/emacsen-common/emacs-package-install ]; then
	/usr/lib/emacsen-common/emacs-package-install semi
    fi
else
# Automatically added by dh_installemacsen/11.1.4ubuntu1
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -e /var/lib/emacsen-common/state/package/installed/emacsen-common -a -x /usr/lib/emacsen-common/emacs-package-install ] ; then
		/usr/lib/emacsen-common/emacs-package-install --postinst semi
	fi
fi
# End automatically added section
fi
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