This file is indexed.

postinst is in spread 3.17.4-3.

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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#! /bin/sh -e

if [ "$1" = "configure" ]; then
    addgroup --system spread || {
        # addgroup failed. Why?
        if ! getent group spread >/dev/null ; then
            echo "Could not create system group spread." >&2
            if getent group spread >/dev/null ; then
	            echo "Non-system group spread found. I will not overwrite a non-system" >&2
	            echo "user.  Remove the group and reinstall spread." >&2
	        fi
            exit 1
        fi
        # well, the group is there, so just ignore the error
    }
    adduser --system --ingroup spread --home /var/run/spread \
            --gecos "Spread system user" --shell /bin/sh \
            --disabled-password spread || {
        echo "Could not create system user spread." >&2
        # adduser failed. Why?
        if getent passwd spread >/dev/null ; then
            echo "Non-system user spread found. I will not overwrite a non-system" >&2
            echo "user.  Remove the user and reinstall spread." >&2
            exit 1
        fi
        # unknown adduser error, simply exit
        exit 1
    }
    
    # Add overrides
    if ! dpkg-statoverride --list /etc/spread >/dev/null; then
        dpkg-statoverride --update --add spread spread 755 \
            /etc/spread
    fi
    if ! dpkg-statoverride --list /etc/spread/spread.conf >/dev/null; then
        dpkg-statoverride --update --add spread spread 644 \
            /etc/spread/spread.conf
    fi
    if ! dpkg-statoverride --list /var/run/spread >/dev/null; then
        dpkg-statoverride --update --add spread spread 755 \
            /var/run/spread
    fi
fi

# Automatically added by dh_installinit
if [ -x "/etc/init.d/spread" ]; then
	if [ ! -e "/etc/init/spread.conf" ]; then
		update-rc.d spread defaults >/dev/null
	fi
	invoke-rc.d spread start || exit $?
fi
# End automatically added section