Class: Babushka::Shell

Inherits:

Object

• Object
• Babushka::Shell

show all

Includes:

LogHelpers

Defined in:

lib/babushka/shell.rb

Defined Under Namespace

Classes: ShellCommandFailed

Instance Attribute Summary (collapse)

• - (Object) cmd readonly

  Returns the value of attribute cmd.

• - (Object) env readonly

  Returns the value of attribute env.

• - (Object) opts readonly

  Returns the value of attribute opts.

• - (Object) result readonly

  Returns the value of attribute result.

• - (Object) stderr readonly

  Returns the value of attribute stderr.

• - (Object) stdout readonly

  Returns the value of attribute stdout.

Instance Method Summary (collapse)

• - (Shell) initialize(*cmd) constructor

  A new instance of Shell.

• - (Boolean) ok?
• - (Object) run(&block)

Methods included from LogHelpers

#debug, #log, #log_block, #log_error, #log_ok, #log_verbose, #log_warn

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# File 'lib/babushka/shell.rb', line 20

def initialize *cmd
  @opts = cmd.extract_options!
  raise "You can't use :spinner and :progress together in Babushka::Shell." if opts[:spinner] && opts[:progress]
  @env = cmd.first.is_a?(Hash) ? cmd.shift : {}
  @cmd = cmd
  @progress = nil
end

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# File 'lib/babushka/shell.rb', line 18

def cmd
  @cmd
end

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# File 'lib/babushka/shell.rb', line 18

def env
  @env
end

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# File 'lib/babushka/shell.rb', line 18

def opts
  @opts
end

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# File 'lib/babushka/shell.rb', line 18

def result
  @result
end

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# File 'lib/babushka/shell.rb', line 18

def stderr
  @stderr
end

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# File 'lib/babushka/shell.rb', line 18

def stdout
  @stdout
end

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# File 'lib/babushka/shell.rb', line 28

def ok?; result == 0 end

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# File 'lib/babushka/shell.rb', line 30

def run &block
  @stdout, @stderr = '', ''
  @result = invoke
  print "#{" " * (@progress.length + 1)}#{"\b" * (@progress.length + 1)}" unless @progress.nil?

  if block_given?
    yield(self)
  elsif ok?
    stdout.chomp
  else
    raise ShellCommandFailed.new(cmd, stdout, stderr)
  end
end