Class: Envo::CmdListAdd

Inherits:
Object
  • Object
show all
Defined in:
lib/envo/cmd_list_add.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, values, pos) ⇒ CmdListAdd

Returns a new instance of CmdListAdd.



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# File 'lib/envo/cmd_list_add.rb', line 57

def initialize(name, values, pos)
  raise Envo::Error.new 'list-add: no values to add provided' if values.empty?
  @name = name
  @values = values
  @pos = pos
end

Instance Attribute Details

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/envo/cmd_list_add.rb', line 64

def name
  @name
end

#pos ⇒ Object

Returns the value of attribute pos.



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# File 'lib/envo/cmd_list_add.rb', line 64

def pos
  @pos
end

#values ⇒ Object

Returns the value of attribute values.



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# File 'lib/envo/cmd_list_add.rb', line 64

def values
  @values
end

Class Method Details

.parse_cli_all(args) ⇒ Object 



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# File 'lib/envo/cmd_list_add.rb', line 14

def self.parse_cli_all(args)
  opts = CliParser.filter_opts_front(args)
  raise Envo::Error.new "list-add: missing name. Use 'la <name> <val>'" if args.empty?
  parse_cli_args(args[0], args[1..], opts)
end

.parse_cli_args(name, args, opts) ⇒ Object 



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# File 'lib/envo/cmd_list_add.rb', line 38

def self.parse_cli_args(name, args, opts)
  opts += CliParser.filter_opts(args)
  pos = nil
  opts.filter! do |opt|
    case opt
    when '--front', '--top'
      pos = :front
      false
    when '--back', '--bottom'
      pos = :back
      false
    else
      true
    end
  end

  ParsedCmd.new(CmdListAdd.new(name, args, pos), opts)
end

.parse_script(name, tokens, opts) ⇒ Object 



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# File 'lib/envo/cmd_list_add.rb', line 20

def self.parse_script(name, tokens, opts)
  pos = nil
  opts.filter! do |opt|
    case opt
    when 'front', 'top'
      pos = :front
      false
    when 'back', 'bottom'
      pos = :back
      false
    else
      true
    end
  end

  ParsedCmd.new(CmdListAdd.new(name, tokens, pos), opts)
end

.register_cli_parser(parser) ⇒ Object 



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# File 'lib/envo/cmd_list_add.rb', line 7

def self.register_cli_parser(parser)
  parser.add_cmd('la', ->(cmd, args) { parse_cli_all(args) })
end

.register_help(help) ⇒ Object 



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# File 'lib/envo/cmd_list_add.rb', line 3

def self.register_help(help)
  help.add_cmd 'la <name> <val>', "shorthand for 'list <name> add <val>'"
end

.register_script_parser(parser) ⇒ Object 



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# File 'lib/envo/cmd_list_add.rb', line 11

def self.register_script_parser(parser)
end

Instance Method Details

#execute(ctx) ⇒ Object 



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# File 'lib/envo/cmd_list_add.rb', line 66

def execute(ctx)
  ename = ctx.expand_name(@name)

  list = ctx.smart_get(ename)

  ok = list.list?
  if !ok
    if list.type == :empty
      ok ||= ctx.ask("#{ename} doesn't exist. Create?")
    else
      ok ||= ctx.ask("#{ename} is not a list, but a #{list.type}. Convert?")
    end
  end
  raise Envo::Error.new "list-add: adding list item to a non-list" if !ok

  list = list.to_list

  ordered = @pos == :front ? values.reverse : values
  ordered.each do |val|
    val = ctx.expand_value(val)

    ok = list.accept_item?(val)
    ok ||= ctx.ask("Add #{val.type} to #{list.type}?")
    raise Envo::Error.new "list-add: adding #{val.type} to #{list.type}" if !ok

    idesc = val.invalid_description
    ok = !idesc
    ok ||= ctx.ask("Add #{idesc} to #{ename}?")
    raise Envo::Error.new "list-add: adding #{idesc} to #{ename}" if !ok

    list.insert(val.to_s, @pos)
  end

  ctx.smart_set(ename, list)
end