Generate .htaccess in Middleman. https://coderwall.com/p/daflfq

config.rb

# disable layout
page ".htaccess.apache", :layout => false

# rename file after build
after_build do
  File.rename 'build/.htaccess.apache', 'build/.htaccess'
end

htaccess.apache.erb

# MOVE PERMANENTLY
<% data.htaccess.redirect.each do |old, new| %>
Redirect 301 <%= old %> <%= data.htaccess.web.url %><%= new %>
<% end %>

# REWRITE - redirect to www. page
RewriteEngine on
RewriteCond %{HTTP_HOST} ^<%= data.htaccess.web.domain %>$
RewriteRule (.*) <%= data.htaccess.web.url %>/$1 [R=301,L]

# ERROR DOCUMENTS
<% data.htaccess.errors.each do |code, document| %>
ErrorDocument <%= code %> <%= document %>
<% end %>

# GZIP, CACHE
AddType image/x-icon .ico

ExpiresActive on
<% data.htaccess.cache.expire.each do |type, expire| %>
ExpiresByType <%= type %> "<%= expire %>"
<% end %>

<FilesMatch "<%= data.htaccess.cache.deflate %>">
    SetOutputFilter DEFLATE
</FilesMatch>

htaccess.yml

web:
    domain: example.com
    url: http://www.example.com

redirect:
    /old-url.html: /new-url.html
    /another/url.html: /new/
    /old-directory/: /new-directory/

cache:
    deflate: \\.(js|css|html|ico|png)$
    expire:
        image/png: access plus 1 month
        image/ico: access plus 1 month
        image/x-icon: access plus 1 month
        text/html: access plus 1 minute
        text/css: access plus 7 days
        application/javascript: access plus 7 days
        text/javascript: access plus 7 days

errors:
    401: "Unauthorized access"
    404: /404.html