Webistrano settings for lazy assets:precompile (if assets are not changed, don't invoke rake assets:precompile)

1, install capistrano-lazy-assets in webistrano environment.

2, add recipe at webistrano

load 'deploy/assets'
require 'capistrano-lazy-assets'

3, deploy_via by remote_cache

deploy_via :remote_cache
repository_cache    cached-copy

That's it. in my case, 400sec -> 30sec.

Yet if we changed assets, it takes 400sec as originaly does. turbo-sprockets-rails3 is also useful which recompiling changed assets, based on a hash of their source files.

30%~40% faster. 400sec -> 280sec.