<%# In each function, a `:` is the first command. -%> <%# This makes sure that at least one command is in the function -%> <%# This avoids a lot of potential errors, including the case that -%> <%# the script is non-empty, but just whitespace and/or comments -%> <%# see issue #875 for more details -%> <% if script?(:before_install) -%> pre_install() { : <%= script(:before_install) %> } <% end -%> <% if script?(:after_install) -%> post_install() { : <%= script(:after_install) %> } <% end -%> <% if script?(:before_upgrade) -%> pre_upgrade() { : <%= script(:before_upgrade) %> } <% end -%> <% if script?(:after_upgrade) -%> post_upgrade() { : <%= script(:after_upgrade) %> } <% end -%> <% if script?(:before_remove) -%> pre_remove() { : <%= script(:before_remove) %> } <% end -%> <% if script?(:after_remove) -%> post_remove() { : <%= script(:after_remove) %> } <% end -%>