Module: Brat::CLI::Helpers

Extended by:
Helpers
Included in:
Brat::CLI, Helpers, Help, Shell
Defined in:
lib/brat/cli_helpers.rb

Overview

Defines methods related to CLI output and formatting.

Instance Method Summary collapse

Instance Method Details

#actions_table ⇒ String

Table with available commands.

Returns:

  • (String) 


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# File 'lib/brat/cli_helpers.rb', line 54

def actions_table
  client = Brat::Client.new(endpoint: '')
  actions = Brat.actions
  methods = []

  actions.each do |action|
    methods << {
      name: action,
      owner: client.method(action).owner.to_s.gsub('Brat::Client::', '')
    }
  end

  owners = methods.map {|m| m[:owner]}.uniq.sort
  methods_c = methods.group_by {|m| m[:owner]}
  methods_c = methods_c.map {|_, v| [_, v.sort_by {|hv| hv[:name]}] }
  methods_c = Hash[methods_c.sort_by(&:first).map {|k, v| [k, v]}]
  max_column_length = methods_c.values.max_by(&:size).size

  rows = max_column_length.times.map do |i|
    methods_c.keys.map do |key|
      methods_c[key][i] ? methods_c[key][i][:name] : ''
    end
  end

  table do |t|
    t.title = "Available commands (#{actions.size} total)"
    t.headings = owners

    rows.each do |row|
      t.add_row row
    end
  end
end

#brat_helper(cmd, args = []) ⇒ Object

Helper function to call Brat commands with args.



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# File 'lib/brat/cli_helpers.rb', line 164

def brat_helper(cmd, args=[])
  begin
    data = args.any? ? Brat.send(cmd, *args) : Brat.send(cmd)
  rescue => e
    puts e.message
    yield if block_given?
  end

  data
end

#confirm_command(cmd) ⇒ String

Confirms command with a desctructive action.

Returns:

  • (String) 


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# File 'lib/brat/cli_helpers.rb', line 39

def confirm_command(cmd)
  if cmd.start_with?('remove_') || cmd.start_with?('delete_')
    puts "Are you sure? (y/n)"
    if %w(y yes).include?($stdin.gets.to_s.strip.downcase)
      puts 'Proceeding..'
    else
      puts 'Command aborted.'
      exit(1)
    end
  end
end

#excluded_fields(args) ⇒ Array

Returns filtered excluded fields.

Returns:

  • (Array) 


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# File 'lib/brat/cli_helpers.rb', line 20

def excluded_fields(args)
  if args.any? && args.last.start_with?('--except=')
    args.last.gsub('--except=', '').split(',')
  else
    []
  end
end

#multiple_record_table(data, cmd, args) ⇒ String

Table for multiple records.

Returns:

  • (String) 


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# File 'lib/brat/cli_helpers.rb', line 131

def multiple_record_table(data, cmd, args)
  return 'No data' if data.empty?

  arr = data.map(&:to_h)
  keys = arr.first.keys.sort {|x, y| x.to_s <=> y.to_s }
  keys = keys & required_fields(args) if required_fields(args).any?
  keys = keys - excluded_fields(args)

  table do |t|
    t.title = "Brat.#{cmd} #{args.join(', ')}"
    t.headings = keys

    arr.each_with_index do |hash, index|
      values = []

      keys.each do |key|
        case value = hash[key]
        when Hash
          value = 'Hash'
        when nil
          value = 'null'
        end

        values << value
      end

      t.add_row values
      t.add_separator unless arr.size - 1 == index
    end
  end
end

#output_table(cmd, args, data) ⇒ String

Decides which table to use.

Returns:

  • (String) 


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# File 'lib/brat/cli_helpers.rb', line 91

def output_table(cmd, args, data)
  case data
  when Brat::ObjectifiedHash
    puts single_record_table(data, cmd, args)
  when Array
    puts multiple_record_table(data, cmd, args)
  else
    puts data.inspect
  end
end

#required_fields(args) ⇒ Array

Returns filtered required fields.

Returns:

  • (Array) 


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# File 'lib/brat/cli_helpers.rb', line 9

def required_fields(args)
  if args.any? && args.last.start_with?('--only=')
    args.last.gsub('--only=', '').split(',')
  else
    []
  end
end

#single_record_table(data, cmd, args) ⇒ String

Table for a single record.

Returns:

  • (String) 


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# File 'lib/brat/cli_helpers.rb', line 105

def single_record_table(data, cmd, args)
  hash = data.to_h
  keys = hash.keys.sort {|x, y| x.to_s <=> y.to_s }
  keys = keys & required_fields(args) if required_fields(args).any?
  keys = keys - excluded_fields(args)

  table do |t|
    t.title = "Brat.#{cmd} #{args.join(', ')}"

    keys.each_with_index do |key, index|
      case value = hash[key]
      when Hash
        value = 'Hash'
      when nil
        value = 'null'
      end

      t.add_row [key, value]
      t.add_separator unless keys.size - 1 == index
    end
  end
end

#valid_command?(cmd) ⇒ Boolean

Confirms command is valid.

Returns:

  • (Boolean) 


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# File 'lib/brat/cli_helpers.rb', line 31

def valid_command?(cmd)
  command = cmd.is_a?(Symbol) ? cmd : cmd.to_sym
  Brat.actions.include?(command)
end