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 



18
19
20
 
# File 'lib/jets/cli/lambda/lookup.rb', line 18

def initialize(name)
  @name = name
end

Class Method Details

.function(name) ⇒ Object 



12
13
14
 
# File 'lib/jets/cli/lambda/lookup.rb', line 12

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

Instance Method Details

#function_name ⇒ Object 



23
24
25
26
27
28
29
30
31
32
 
# 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 



34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
 
# 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