Class: TheFox::Timr::Command::PopCommand

Inherits:
BasicCommand show all
Includes:
Error, Helper
Defined in:
lib/timr/command/pop_command.rb

Overview

This command pops the Top [Track](TheFox::Timr::Model::Track), makes a duplication of the next Track on the [Stack](TheFox::Timr::Model::Stack), pops the next, and pushes the duplication Track back on the Stack. There are at least 3 Tracks involved.

Man page: [timr-pop(1)](../../../../man/timr-pop.1.html)

### Example

Example Stack before pop:

“‘ Track 1234 stopped Track 2345 stopped Track 3456 running “`

Pop Execution

  1. Make duplication of Track ‘3456` -> new Track `4567`.

Because Track `3456` is the latest Track on the Stack. Sometimes call *Top Track*.

  1. Pop Track ‘3456` from Stack.

  2. Push new Track ‘4567` to Stack.

Example Stack after pop:

“‘ Track 1234 stopped Track 2345 stopped Track 4567 running “`

Constant Summary collapse

MAN_PATH =

Path to man page.

'man/timr-pop.1'

Instance Attribute Summary

Attributes inherited from BasicCommand

#cwd

Instance Method Summary collapse

Methods inherited from BasicCommand

create_command_from_argv, get_command_class_by_name, #shutdown

Constructor Details

#initialize(argv = Array.new) ⇒ PopCommand

Returns a new instance of PopCommand.



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# File 'lib/timr/command/pop_command.rb', line 44

def initialize(argv = Array.new)
	super()
	
	@help_opt = false
	
	@start_date_opt = nil
	@start_time_opt = nil
	@end_date_opt = nil
	@end_time_opt = nil
	
	@date_opt = nil
	@time_opt = nil
	
	loop_c = 0 # Limit the loop.
	while loop_c < 1024 && argv.length > 0
		loop_c += 1
		arg = argv.shift
		
		case arg
		when '-h', '--help'
			@help_opt = true
		
		when '--sd', '--start-date'
			@start_date_opt = argv.shift
		when '--st', '--start-time'
			@start_time_opt = argv.shift
		when '--ed', '--end-date'
			@end_date_opt = argv.shift
		when '--et', '--end-time'
			@end_time_opt = argv.shift
		
		when '-d', '--date'
			@date_opt = argv.shift
		when '-t', '--time'
			@time_opt = argv.shift
		
		else
			raise PopCommandError, "Unknown argument '#{arg}'. See 'timr pop --help'."
		end
	end
	
	if @date_opt
		@start_date_opt = @date_opt
		@end_date_opt = @date_opt
	end
	if @time_opt
		@start_time_opt = @time_opt
		@end_time_opt = @time_opt
	end
end

Instance Method Details

#run ⇒ Object

See BasicCommand#run.



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# File 'lib/timr/command/pop_command.rb', line 96

def run
	if @help_opt
		help
		return
	end
	
	@timr = Timr.new(@cwd)
	
	# Stop
	options = {
		:date => @end_date_opt,
		:time => @end_time_opt,
	}
	
	track = @timr.stop(options)
	unless track
		puts 'No running Track to pop/stop.'
		return
	end
	
	task = track.task
	unless task
		raise TrackError, "Track #{track.id} has no Task."
	end
	
	puts '--- POPED ---'
	puts track.to_compact_str
	puts
	
	# Continue
	options = {
		:date => @start_date_opt,
		:time => @start_time_opt,
	}
	
	track = @timr.continue(options)
	unless track
		puts 'No running Track left on Stack to continue.'
		return
	end
	
	task = track.task
	unless task
		raise TrackError, "Track #{track.id} has no Task."
	end
	
	puts '--- CONTINUED ---'
	puts track.to_compact_str
	puts
	puts @timr.stack
end