# File lib/heroku/command/base.rb, line 9 def self.namespace self.to_s.split("::").last.downcase end
# File lib/heroku/command/base.rb, line 16 def initialize(args=[], options={}) @args = args @options = options end
# File lib/heroku/command/base.rb, line 77 def self.alias_command(new, old) raise "no such command: #{old}" unless Heroku::Command.commands[old] Heroku::Command.command_aliases[new] = old end
# File lib/heroku/command/base.rb, line 135 def self.extract_description(help) help.reject do |line| line =~ %r^ -(.+)#(.+)/ end.join("\n") end
# File lib/heroku/command/base.rb, line 109 def self.extract_help(file, line_number) buffer = [] lines = Heroku::Command.files[file] (line_number.to_i-2).downto(0) do |i| line = lines[i] case line[0..0] when "" when "#" buffer.unshift(line[1..-1]) else break end end buffer end
Parse the caller format and identify the file and line number as identified in : www.ruby-doc.org/core/classes/Kernel.html#M001397. This will look for a colon followed by a digit as the delimiter. The biggest complication is windows paths, which have a color after the drive letter. This regex will match paths as anything from the beginning to a colon directly followed by a number (the line number).
Examples of the caller format :
c:/Ruby192/lib/.../lib/heroku/command/addons.rb:8:in `<module:Command>'
c:/Ruby192/lib/.../heroku-2.0.1/lib/heroku/command/pg.rb:96:in `<class:Pg>'
/Users/ph7/...../xray-1.1/lib/xray/thread_dump_signal_handler.rb:9
# File lib/heroku/command/base.rb, line 100 def self.extract_help_from_caller(line) # pull out of the caller the information for the file path and line number if line =~ %r^(.+?):(\d+)/ extract_help($1, $2) else raise("unable to extract help from caller: #{line}") end end
# File lib/heroku/command/base.rb, line 141 def self.extract_options(help) help.select do |line| line =~ %r^ -(.+)#(.+)/ end.inject({}) do |hash, line| description = line.split("#", 2).last long = line.match(%r--([A-Za-z\- ]+)/)[1].strip short = line.match(%r-([A-Za-z ])/)[1].strip hash.update(long.split(" ").first => { :desc => description, :short => short, :long => long }) end end
# File lib/heroku/command/base.rb, line 131 def self.extract_summary(help) extract_description(help).split("\n").first end
# File lib/heroku/command/base.rb, line 43 def self.inherited(klass) unless klass == Heroku::Command::Base help = extract_help_from_caller(caller.first) Heroku::Command.register_namespace( :name => klass.namespace, :description => help.first ) end end
# File lib/heroku/command/base.rb, line 54 def self.method_added(method) return if self == Heroku::Command::Base return if private_method_defined?(method) return if protected_method_defined?(method) help = extract_help_from_caller(caller.first) resolved_method = (method.to_s == "index") ? nil : method.to_s command = [ self.namespace, resolved_method ].compact.join(":") banner = extract_banner(help) || command Heroku::Command.register_command( :klass => self, :method => method, :namespace => self.namespace, :command => command, :banner => banner.strip, :help => help.join("\n"), :summary => extract_summary(help), :description => extract_description(help), :options => extract_options(help) ) end
# File lib/heroku/command/base.rb, line 21 def app @app ||= if options[:app].is_a?(String) if confirm_mismatch? raise Heroku::Command::CommandFailed, "Mismatch between --app and --confirm" end options[:app] elsif options[:confirm].is_a?(String) options[:confirm] elsif app_from_dir = extract_app_in_dir(Dir.pwd) app_from_dir else raise Heroku::Command::CommandFailed, "No app specified.\nRun this command from an app folder or specify which app to use with --app <app name>" end end
# File lib/heroku/command/base.rb, line 37 def heroku Heroku::Auth.client end
# File lib/heroku/command/base.rb, line 159 def confirm_mismatch? options[:confirm] && (options[:confirm] != options[:app]) end
# File lib/heroku/command/base.rb, line 206 def escape(value) heroku.escape(value) end
# File lib/heroku/command/base.rb, line 82 def extract_app output_with_bang "Command::Base#extract_app has been deprecated. Please use Command::Base#app instead. #{caller.first}" app end
# File lib/heroku/command/base.rb, line 180 def extract_app_from_git_config remote = git("config heroku.remote") remote == "" ? nil : remote end
# File lib/heroku/command/base.rb, line 163 def extract_app_in_dir(dir) return unless remotes = git_remotes(dir) if remote = options[:remote] remotes[remote] elsif remote = extract_app_from_git_config remotes[remote] else apps = remotes.values.uniq if apps.size == 1 apps.first else raise(Heroku::Command::CommandFailed, "Multiple apps in folder and no app specified.\nSpecify which app to use with --app <app name>") end end end
# File lib/heroku/command/base.rb, line 152 def extract_option(name, default=true) key = name.gsub("--", "").to_sym return unless options[key] value = options[key] || default block_given? ? yield(value) : value end
# File lib/heroku/command/base.rb, line 185 def git_remotes(base_dir=Dir.pwd) remotes = {} original_dir = Dir.pwd Dir.chdir(base_dir) return unless File.exists?(".git") git("remote -v").split("\n").each do |remote| name, url, method = remote.split(%r\s/) if url =~ %r^git@#{heroku.host}:([\w\d-]+)\.git$/ remotes[name] = $1 end end Dir.chdir(original_dir) if remotes.empty? nil else remotes end end