Class: Remocon::Command::Pull

Inherits:
Object
  • Object
show all
Includes:
Remocon::ConditionSorter, ParameterSorter
Defined in:
lib/remocon/command/pull_command.rb

Defined Under Namespace

Classes: RemoteConfig

Constant Summary

Constants included from ParameterSorter

ParameterSorter::PARAMETER_KEYS

Constants included from Remocon::ConditionSorter

Remocon::ConditionSorter::CONDITION_KEYS

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from ParameterSorter

#comparator_of_parameter_keys, #sort_conditions_of_parameters, #sort_parameters

Methods included from Remocon::ConditionSorter

#comparator_of_condition_keys, #sort_conditions

Constructor Details

#initialize(opts) ⇒ Pull

Returns a new instance of Pull.



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# File 'lib/remocon/command/pull_command.rb', line 38

def initialize(opts)
  @config = Remocon::Config.new(opts)
  @cmd_opts = { validate_only: false }
  @left = RemoteConfig.new(opts)
  @create_command = Remocon::Command::Create.new(opts)
end

Instance Attribute Details

#cmd_opts ⇒ Object (readonly)

Returns the value of attribute cmd_opts.



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# File 'lib/remocon/command/pull_command.rb', line 36

def cmd_opts
  @cmd_opts
end

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/remocon/command/pull_command.rb', line 36

def config
  @config
end

#create_command ⇒ Object (readonly)

Returns the value of attribute create_command.



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# File 'lib/remocon/command/pull_command.rb', line 36

def create_command
  @create_command
end

#left ⇒ Object (readonly)

Returns the value of attribute left.



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# File 'lib/remocon/command/pull_command.rb', line 36

def left
  @left
end

Instance Method Details

#conditions_diff(left, right) ⇒ Object 



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# File 'lib/remocon/command/pull_command.rb', line 69

def conditions_diff(left, right)
  left_names = left.map { |c| c[:name] }
  right_names = right.map { |c| c[:name] }

  added_names = right_names - left_names
  removed_names = left_names - right_names

  added = added_names.each_with_object([]) do |k, acc|
    acc.push(right.find { |c| c[:name] == k })
  end

  changed = []
  unchanged = []

  (right_names & left_names).each do |k|
    old = left.find { |c| c[:name] == k }
    new = right.find { |c| c[:name] == k }

    if old == new
      unchanged.push(old)
    else
      changed.push(Remocon::ConditionFileDumper.new(new).dump)
    end
  end

  removed = []

  removed_names.each do |k|
    removed.push(left.find { |c| c[:name] == k })
  end

  [unchanged, added, changed, removed]
end

#parameters_diff(left, right) ⇒ Object 



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# File 'lib/remocon/command/pull_command.rb', line 103

def parameters_diff(left, right)
  added_keys = right.keys - left.keys
  removed_keys = left.keys - right.keys

  added = added_keys.each_with_object({}) do |k, acc|
    acc.merge!(Remocon::ParameterFileDumper.new({ k => right[k] }).dump)
  end

  changed = {}
  unchanged = {}

  (right.keys & left.keys).each do |k|
    # both of left and right is config json's format
    # comparison should be done based on the format but dumped format should be returned
    old = left[k]
    new = right[k]

    if old == new
      unchanged.merge!(Remocon::ParameterFileDumper.new({ k => old }).dump)
    else
      changed.merge!(Remocon::ParameterFileDumper.new({ k => new }).dump)
    end
  end

  removed = removed_keys.each_with_object({}) do |k, acc|
    acc.merge!(Remocon::ParameterFileDumper.new({ k => left[k] }).dump)
  end

  [unchanged, added, changed, removed]
end

#run ⇒ Object 



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# File 'lib/remocon/command/pull_command.rb', line 45

def run
  raw_json, etag = Remocon::Request.pull(config)

  raw_hash = JSON.parse(raw_json).with_indifferent_access

  raise "etag cannot be fetched. please try again" unless etag

  conditions = raw_hash[:conditions] || []
  parameters = raw_hash[:parameters] || {}

  if config.merge? && File.exist?(config.parameters_file_path) && File.exist?(config.parameters_file_path)
    unchanged_conditions, added_conditions, changed_conditions, = conditions_diff(left.conditions_to_be_compared, conditions)
    unchanged_parameters, added_parameters, changed_parameters, = parameters_diff(left.parameters_to_be_compared, parameters)

    conditions_array = JSON.parse(sort_conditions(unchanged_conditions + added_conditions + changed_conditions).to_json)
    parameters_hash = JSON.parse(sort_parameters(unchanged_parameters.merge(added_parameters).merge(changed_parameters)).to_json)
  else
    conditions_array = JSON.parse(sort_conditions(Remocon::ConditionFileDumper.new(conditions).dump).to_json)
    parameters_hash = JSON.parse(sort_parameters(Remocon::ParameterFileDumper.new(parameters).dump).to_json)
  end

  write_to_files(conditions_array, parameters_hash, etag)
end