Class: PDK::CLI::Exec::Command

Inherits:
Object
  • Object
show all
Defined in:
lib/pdk/cli/exec.rb

Overview

TODO: decide how/when to connect stdin to child process for things like pry TODO: need a way to set callbacks on new stdout/stderr data

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*argv) ⇒ Command

Returns a new instance of Command.



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# File 'lib/pdk/cli/exec.rb', line 59

def initialize(*argv)
  @argv = argv

  @process = ChildProcess.build(*@argv)
  @process.leader = true

  @stdout = Tempfile.new('stdout').tap { |io| io.sync = true }
  @stderr = Tempfile.new('stderr').tap { |io| io.sync = true }

  @process.io.stdout = @stdout
  @process.io.stderr = @stderr

  # Default to running things in the system context.
  @context = :system
end

Instance Attribute Details

#argv ⇒ Object (readonly)

Returns the value of attribute argv.



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# File 'lib/pdk/cli/exec.rb', line 55

def argv
  @argv
end

#context ⇒ Object

Returns the value of attribute context.



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# File 'lib/pdk/cli/exec.rb', line 56

def context
  @context
end

#timeout ⇒ Object

Returns the value of attribute timeout.



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# File 'lib/pdk/cli/exec.rb', line 57

def timeout
  @timeout
end

Instance Method Details

#add_spinner(message, opts = {}) ⇒ Object 



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# File 'lib/pdk/cli/exec.rb', line 83

def (message, opts = {})
  @success_message = opts.delete(:success)
  @failure_message = opts.delete(:failure)

  @spinner = TTY::Spinner.new("[:spinner] #{message}", opts)
end

#execute! ⇒ Object 



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# File 'lib/pdk/cli/exec.rb', line 90

def execute!
  # Start spinning if configured.
  @spinner.auto_spin if @spinner

  if context == :module
    # TODO: we should probably more carefully manage PATH and maybe other things too
    @process.environment['GEM_HOME'] = File.join(PDK::Util.cachedir, 'bundler', 'ruby', RbConfig::CONFIG['ruby_version'])
    @process.environment['GEM_PATH'] = pdk_gem_path

    Dir.chdir(PDK::Util.module_root) do
      ::Bundler.with_clean_env do
        run_process!
      end
    end
  else
    run_process!
  end

  # Stop spinning when done (if configured).
  if @spinner
    if @process.exit_code.zero?
      @spinner.success(@success_message || '')
    else
      @spinner.error(@failure_message || '')
    end
  end

  @stdout.rewind
  @stderr.rewind

  process_data = {
    stdout: @stdout.read,
    stderr: @stderr.read,
    exit_code: @process.exit_code,
  }

  return process_data
ensure
  @stdout.close
  @stderr.close
end