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# frozen_string_literal: true
require 'shellwords'
require 'stringio'
require 'aruba/processes/basic_process'
require 'aruba/platform'
# Aruba
module Aruba
# Platforms
module Processes
# Run command in your ruby process
#
# `InProcess` is not meant for direct use - `InProcess.new` - by
# users. Only it's public methods are part of the public API of aruba, e.g.
# `#stdin`, `#stdout`.
#
# @private
class InProcess < BasicProcess
# Use only if mode is in_process
def self.match?(mode)
mode == :in_process || (mode.is_a?(Class) && mode <= InProcess)
end
attr_reader :exit_status
# Fake Kernel module of ruby
#
# @private
class FakeKernel
attr_reader :exitstatus
def initialize
@exitstatus = 0
end
def exit(exitstatus)
@exitstatus =
case exitstatus
when Numeric then Integer(exitstatus)
when TrueClass then 0
when FalseClass then 1
else raise TypeError, "no implicit conversion of #{exitstatus.class} into Integer"
end
end
end
# @private
attr_reader :main_class
def initialize(cmd, exit_timeout, io_wait_timeout, working_directory, # rubocop:disable Metrics/ParameterLists
environment = Aruba.platform.environment_variables.hash_from_env,
main_class = nil, stop_signal = nil, startup_wait_time = 0)
@cmd = cmd
@argv = arguments
@stdin = StringIO.new
@stdout = StringIO.new
@stderr = StringIO.new
@kernel = FakeKernel.new
super
end
# Start command
def start
raise 'You need to call aruba.config.main_class = YourMainClass' unless main_class
@started = true
Dir.chdir @working_directory do
before_run
new_env = environment.merge('PWD' => @working_directory)
Aruba.platform.with_replaced_environment new_env do
main_class.new(@argv, @stdin, @stdout, @stderr, @kernel).execute!
end
after_run
yield self if block_given?
end
end
# Stop command
def stop(*)
@started = false
@exit_status = @kernel.exitstatus
end
# Access stdin
def stdin
@stdin.string
end
# Access stdout
def stdout(*)
@stdout.string
end
# Access stderr
def stderr(*)
@stderr.string
end
# Write strint to stdin
#
# @param [String] input
# Write string to stdin in
def write(input)
@stdin.write input
end
# Close io
def close_io(name)
unless %i[stdin stdout stderr].include? name
raise ArgumentError, 'Only stdin stdout and stderr are allowed to close'
end
get_instance_variable(name.to_sym).close
end
# Terminate program
def terminate
stop
end
# Output pid of process
#
# This is the PID of the ruby process! So be careful
def pid
$PROCESS_ID
end
def interactive?
false
end
end
end
end
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