Sha256: e60b07a8eacc60d7b1eb291ada5ebef26b55f03ab8dd3c08c7f7edb66738c547
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Versions: 10
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Contents
require "erubis"
class Capper
module Utils
module Templates
# render an erb template from config/deploy/templates to the current
# server list. this will render and upload templates serially using a
# server-specific @variables binding. see get_binding for details.
def upload_template(name, path, options={})
template = "config/deploy/templates/#{name}.erb"
unless File.exist?(template)
template = File.expand_path("../../templates/#{name}.erb", __FILE__)
end
erb = Erubis::Eruby.new(File.open(template).read)
prefix = options.delete(:prefix)
if task = current_task
servers = find_servers_for_task(task, options)
else
servers = find_servers(options)
end
if servers.empty?
raise Capistrano::NoMatchingServersError, "no servers matching #{task.options.inspect}"
end
servers.each do |server|
result = erb.result(get_binding(prefix, server.host))
put(result, path, options.merge!(:host => server.host))
end
end
# this allows for server specific variables. example:
#
# set :unicorn_worker_processes, {
# "app1.example.com" => 4,
# "app2.example.com" => 8,
# }
def get_binding(prefix, server)
b = binding()
variables.keys.select do |k|
k =~ /^#{prefix}_/
end.each do |k|
v = fetch(k)
if v.kind_of?(Hash)
eval("set(:#{k}, \"#{v[server] || v["default"]}\")", b)
else
eval("set(:#{k}, \"#{v}\")", b)
end
end
return b
end
private :get_binding
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems