class Pixiebox::Runner
Public Class Methods
new(argv, stdin = STDIN, stdout = STDOUT, stderr = STDERR, kernel = Kernel)
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Allow everything fun to be injected from the outside while defaulting to normal implementations.
# File lib/runner.rb, line 6 def initialize(argv, stdin = STDIN, stdout = STDOUT, stderr = STDERR, kernel = Kernel) @argv, @stdin, @stdout, @stderr, @kernel = argv, stdin, stdout, stderr, kernel end
Public Instance Methods
execute!()
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# File lib/runner.rb, line 10 def execute! exit_code = begin # Thor accesses these streams directly rather than letting them be injected, so we replace them... $stderr = @stderr $stdin = @stdin $stdout = @stdout # Let TTY::File know about the stdout switch TTY::File.instance_variable_set :"@output", $stdout # Run our normal Thor app the way we know and love. Pixiebox::CLI.start(@argv) # Thor::Base#start does not have a return value, assume success if no exception is raised. 0 rescue StandardError => e # The ruby interpreter would pipe this to STDERR and exit 1 in the case of an unhandled exception b = e.backtrace @stderr.puts("#{b.shift}: #{e.message} (#{e.class})") @stderr.puts(b.map{|s| "\tfrom #{s}"}.join("\n")) 1 rescue SystemExit => e e.status ensure # TODO: reset your app here, free up resources, etc. # Examples: # MyApp.logger.flush # MyApp.logger.close # MyApp.logger = nil # # MyApp.reset_singleton_instance_variables # ...then we put the streams back. $stderr = STDERR $stdin = STDIN $stdout = STDOUT end # Proxy our exit code back to the injected kernel. @kernel.exit(exit_code) end