app/views/releases/install/show.html.erb
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>items</key>
<array>
<dict>
<key>assets</key>
<array>
<dict>
<key>kind</key>
<string>software-package</string>
<key>url</key>
<string><%= @release.download_url %></string>
</dict>
<% if @release.icon && @release.icon.file && @release.icon.file.exists? %>
<dict>
<key>kind</key>
<string>display-image</string>
<key>needs-shine</key>
<false/>
<key>url</key>
<string><%= @release.icon_url %></string>
</dict>
<% end %>
</array>
<key>metadata</key>
<dict>
<key>bundle-identifier</key>
<string><%= @release.bundle_id %></string>
<key>bundle-version</key>
<string><%= @release.release_version %></string>
<key>kind</key>
<string>software</string>
<key>title</key>
<string><%= @release.app_name %></string>
</dict>
</dict>
</array>
</dict>
</plist>