Class: Jets::CLI::Lambda::Lookup

Inherits:
Object
  • Object
show all
Includes:
AwsServices
Defined in:
lib/jets/cli/lambda/lookup.rb

Defined Under Namespace

Classes: Error

Constant Summary collapse

MAX_FUNCTION_NAME_SIZE = 
64

Class Method Summary collapse

Instance Method Summary collapse

Methods included from AwsServices

#apigateway, #aws_options, #cfn, #codebuild, #dynamodb, #lambda_client, #logs, #s3, #s3_resource, #sns, #sqs, #ssm, #sts, #wafv2

Methods included from AwsServices::StackStatus

#output_value, #stack_exists?

Methods included from AwsServices::GlobalMemoist

included, #reset_cache!

Constructor Details

#initialize(name) ⇒ Lookup

Returns a new instance of Lookup.



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# File 'lib/jets/cli/lambda/lookup.rb', line 18

def initialize(name)
  @name = name
end

Class Method Details

.function(name) ⇒ Object 



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# File 'lib/jets/cli/lambda/lookup.rb', line 12

def function(name)
  new(name).lookup
end

Instance Method Details

#function_name ⇒ Object 



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# File 'lib/jets/cli/lambda/lookup.rb', line 23

def function_name
  name = if @name.starts_with?(Jets.project.namespace)
    @name # fully qualified function name
  elsif !ENV["JETS_RESET"]
    [Jets.project.namespace, @name].join("-")
  else
    lookup
  end
  (name.size > MAX_FUNCTION_NAME_SIZE) ? lookup : name
end

#lookup ⇒ Object 



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# File 'lib/jets/cli/lambda/lookup.rb', line 34

def lookup
  if @name == "controller"
    class_name, meth = "Controller", ""
  else
    # IE: jets-prewarm_event-handle
    #     class_name => "JetsPrewarm" - no colons ::
    #     meth => "Handle"
    parts = @name.split("-")
    meth = parts.pop.tr("-", "_").camelize
    class_name = parts.join("_").camelize
  end

  parent_name = Jets::Names.parent_stack_name
  parent = cfn.describe_stacks(stack_name: parent_name).stacks.first
  unless parent
    raise Error::ParentStack, "Unable to find parent stack #{parent_name}"
  end

  # Can occur while stack is initially creating for the first time
  output = parent.outputs.find { |o| o.output_key == class_name }
  unless output
    raise Error::Output, "Unable to find output #{class_name} in parent stack #{parent_name}"
  end

  # Can occur while stack is initially creating for the first time
  child_name = output.output_value
  child = cfn.describe_stacks(stack_name: child_name).stacks.first
  unless child
    raise Error::ChildStack, "Unable to find child stack #{parent_name}"
  end
  output = child.outputs.find { |o| o.output_key == "#{meth}LambdaFunction" }
  output.output_value
end