class Cocaine::CommandLine::ProcessRunner
Public Class Methods
available?()
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# File lib/cocaine/command_line/runners/process_runner.rb, line 5 def self.available? Process.respond_to?(:spawn) end
supported?()
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# File lib/cocaine/command_line/runners/process_runner.rb, line 9 def self.supported? available? && !Cocaine::CommandLine.java? end
Public Instance Methods
call(command, env = {}, options = {})
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# File lib/cocaine/command_line/runners/process_runner.rb, line 17 def call(command, env = {}, options = {}) input, output = IO.pipe options[:out] = output with_modified_environment(env) do pid = spawn(env, command, options) output.close result = input.read waitpid(pid) input.close result end end
supported?()
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# File lib/cocaine/command_line/runners/process_runner.rb, line 13 def supported? self.class.supported? end
Private Instance Methods
spawn(*args)
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# File lib/cocaine/command_line/runners/process_runner.rb, line 32 def spawn(*args) Process.spawn(*args) end
waitpid(pid)
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# File lib/cocaine/command_line/runners/process_runner.rb, line 36 def waitpid(pid) Process.waitpid(pid) rescue Errno::ECHILD # In JRuby, waiting on a finished pid raises. end
with_modified_environment(env, &block)
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# File lib/cocaine/command_line/runners/process_runner.rb, line 42 def with_modified_environment(env, &block) ClimateControl.modify(env, &block) end