Class: Tlog::Command::Help

Inherits:
Tlog::Command show all
Defined in:
lib/tlog/command/help.rb

Instance Attribute Summary

Attributes inherited from Tlog::Command

#date_time_format, #seconds_format, #storage

Instance Method Summary collapse

Instance Method Details

#description ⇒ Object 



8
9
10
 
# File 'lib/tlog/command/help.rb', line 8

def description
  "outputs lists of commands and their descriptions"
end

#execute(input, output) ⇒ Object 



12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
# File 'lib/tlog/command/help.rb', line 12

def execute(input, output)
  commands = Tlog::Command_Suite.commands
  commands.sort! {|a,b| a.name <=> b.name}
  max_name_length = 0

  commands.each do |command|
    name_length = command.name.length
    max_name_length = name_length if name_length > max_name_length 
  end

  output.line("usage: tlog <command>")
  output.line(nil)

  commands.each do |command|
    line = sprintf("%-#{max_name_length}s  %s", command.name, command.description)
    output.line(line)
  end

  output.line(nil)
  return true
end

#name ⇒ Object 



4
5
6
 
# File 'lib/tlog/command/help.rb', line 4

def name
  "help"
end

#options(parser, options) ⇒ Object 



34
35
36
 
# File 'lib/tlog/command/help.rb', line 34

def options(parser, options)
  parser.banner = "usage: tlog help"
end