Class: Textus::Action::KeyMvPrefix

Inherits:
Base
  • Object
show all
Extended by:
Contract::DSL
Defined in:
lib/textus/action/key_mv_prefix.rb

Constant Summary collapse

BURN = 
:sync

Instance Method Summary collapse

Methods included from Contract::DSL

arg, around, cli, cli_stdin, contract, contract?, summary, surfaces, verb, view

Methods inherited from Base

#args, inherited

Constructor Details

#initialize(from_prefix:, to_prefix:, dry_run: false) ⇒ KeyMvPrefix

Returns a new instance of KeyMvPrefix.



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# File 'lib/textus/action/key_mv_prefix.rb', line 23

def initialize(from_prefix:, to_prefix:, dry_run: false)
  super()
  @from_prefix = from_prefix
  @to_prefix = to_prefix
  @dry_run = dry_run
end

Instance Method Details

#call(container:, call:) ⇒ Object

Raises:



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# File 'lib/textus/action/key_mv_prefix.rb', line 30

def call(container:, call:)
  raise UsageError.new("from_prefix and to_prefix required") if @from_prefix.nil? || @to_prefix.nil?

  leaves = Textus::Action::List.new(prefix: @from_prefix).call(container: container)
                               .map { |row| row.is_a?(Hash) ? (row["key"] || row[:key]) : row }

  if leaves.include?(@from_prefix)
    raise UsageError.new("from_prefix '#{@from_prefix}' is itself a leaf — use `mv` to rename a single key")
  end

  warnings = []
  warnings << "no keys under #{@from_prefix}" if leaves.empty?

  steps = leaves.map do |old_key|
    tail = old_key.delete_prefix("#{@from_prefix}.")
    new_key = "#{@to_prefix}.#{tail}"
    { "op" => "mv", "from" => old_key, "to" => new_key }
  end

  plan = Textus::Background::Plan.new(steps: steps, warnings: warnings)
  return plan if @dry_run

  steps.each do |step|
    Textus::Action::KeyMv.new(old_key: step["from"], new_key: step["to"]).call(container: container, call: call)
  end
  plan
end