@@ -1,8 +1,37 @@ dep 'rails app' do - requires 'vhost enabled', 'webserver running', 'migrated db' + requires 'gems installed', 'vhost enabled', 'webserver running', 'migrated db' asks_for :domain, :username, :rails_env end +def parse_gem_deps + IO.readlines( + File.expand_path rails_root / 'config/environment.rb' + ).grep(/^\s*config\.gem/).map {|l| + i = l.scan /config\.gem[\s\('"]+([\w-]+)(['"],\s*\:version\s*=>\s*['"]([<>=!~.0-9\s]+)['"])?.*$/ + + if i.first.nil? || i.first.first.nil? + log_error "Couldn't parse '#{l.chomp}' in #{File.expand_path 'config/environment.rb'}." + else + {i.first.first => i.first.last} + end + }.compact +end + +dep 'gems installed' do + setup { + parse_gem_deps.map {|gem_spec| + # Make a new Dep for each gem this app needs... + gem("#{gem_spec.keys.first} gem") { + installs gem_spec + provides [] + } + }.each {|dep| + # ... and set each one as a requirement of this dep. + requires dep.name + } + } +end + dep 'migrated db' do requires 'deployed app', 'existing db', 'rails' met? { @@ -24,7 +53,6 @@ dep 'migrated db' do end dep 'deployed app' do - asks_for :rails_root met? { File.directory? File.expand_path rails_root / 'app' } end deps/rails.rb cf08f355da10670ba30208e1db79396cb24f75aa Ben Hoskings ben@hoskings.net http://github.com/benhoskings/babushka/commit/26e54f00dd36ea08f0a966bd50bbd1d8dd53ea20 26e54f00dd36ea08f0a966bd50bbd1d8dd53ea20 2009-07-05T09:46:36-07:00 2009-07-05T09:46:36-07:00 Parse rails apps' "config.gem"s at runtime and add them as deps. c80833c00dd1d35d0072d15bf6ca911b2c944792 Ben Hoskings ben@hoskings.net