Initial version of fast_remote_cache plugin

init.rb

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+# Include hook code here

lib/capistrano/recipes/deploy/strategy/fast_remote_cache.rb

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+require 'capistrano/recipes/deploy/strategy/remote_cache'
+
+class Capistrano::Deploy::Strategy::FastRemoteCache < Capistrano::Deploy::Strategy::RemoteCache
+  def check!
+    super.check do |d|
+      d.remote.command(configuration.fetch(:ruby, "ruby"))
+      d.remote.directory(bin_path)
+      d.remote.file(File.join(bin_path, "copy.rb"))
+    end
+  end
+
+  def setup!
+    run "mkdir -p #{bin_path}"
+    upload(File.join(File.dirname(__FILE__), "utilities", "copy.rb"), File.join(bin_path, "copy.rb"))
+  end
+
+  private
+
+    def bin_path
+      @bin_path ||= File.join(configuration[:shared_path], "bin")
+    end
+
+    def copy_repository_cache
+      logger.trace "copying the cached version to #{configuration[:release_path]}"
+      ruby = configuration.fetch(:ruby, "ruby")
+      excludes = Array(configuration[:copy_exclude]).join(" ")
+      run "#{ruby} #{File.join(bin_path, 'copy.rb')} #{repository_cache} #{configuration[:release_path]} #{excludes} && #{mark}"
+    end
+end

lib/capistrano/recipes/deploy/strategy/utilities/copy.rb

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+require 'fileutils'
+
+verbose = false
+
+from = ARGV.shift or abort "need source directory"
+to   = ARGV.shift or abort "need target directory"
+
+exclude = ARGV
+
+from = File.expand_path(from)
+to   = File.expand_path(to)
+
+Dir.chdir(from) do
+  FileUtils.mkdir_p(to)
+  queue = Dir.glob("*", File::FNM_DOTMATCH)
+  while queue.any?
+    item = queue.shift
+    name = File.basename(item)
+
+    next if name == "." || name == ".."
+    next if exclude.any? { |pattern| File.fnmatch(pattern, item) }
+
+    source = File.join(from, item)
+    target = File.join(to, item)
+
+    if File.symlink?(item)
+      FileUtils.ln_s(File.readlink(source), target)
+    elsif File.directory?(item)
+      queue += Dir.glob("#{item}/*", File::FNM_DOTMATCH)
+      FileUtils.mkdir_p(target, :mode => File.stat(item).mode)
+    else
+      FileUtils.ln(source, target)
+    end
+  end
+end

recipes/fast_remote_cache.rb

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+$LOAD_PATH.unshift(File.join(File.dirname(__FILE__), "..", "lib"))
+
+namespace :fast_remote_cache do
+
+  desc <<-DESC
+    Perform any setup required by fast_remote_cache. This is called
+    automatically after deploy:setup, but may be invoked manually to configure
+    a new machine. It is also necessary to invoke when you are switching to the
+    fast_remote_cache strategy for the first time.
+  DESC
+  task :setup do
+    if deploy_via == :fast_remote_cache
+      strategy.setup!
+    else
+      logger.warn "you're including the fast_remote_cache strategy, but not using it!"
+    end
+  end
+
+end
+
+after "deploy:setup", "fast_remote_cache:setup"