Class: Lambda::MicroVMs::Packager

Inherits:
Object
  • Object
show all
Defined in:
lib/lambda/microvms/packager.rb

Overview

Creates a deployable source artifact for Lambda MicroVM image creation.

Constant Summary collapse

DEFAULT_EXCLUDES =

Default zip exclusion patterns.

['.git/*', 'tmp/*', 'vendor/bundle/*', '*.gem'].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(project, runner: Open3) ⇒ Packager

Returns a new instance of Packager.



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# File 'lib/lambda/microvms/packager.rb', line 16

def initialize(project, runner: Open3)
  @project = project
  @runner = runner
end

Instance Attribute Details

#project ⇒ Object (readonly)

Returns the value of attribute project.



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# File 'lib/lambda/microvms/packager.rb', line 14

def project
  @project
end

Instance Method Details

#package(output: project.artifact_path) ⇒ String

Create the zip artifact for the configured project.

Parameters:

  • output (String) (defaults to: project.artifact_path) —

    output zip path

Returns:

  • (String) —

    output path

Raises:



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# File 'lib/lambda/microvms/packager.rb', line 26

def package(output: project.artifact_path)
  FileUtils.mkdir_p(File.dirname(output))
  relative_output = begin
    Pathname.new(output).relative_path_from(Pathname.new(project.root)).to_s
  rescue StandardError
    output
  end
  excludes = DEFAULT_EXCLUDES + [relative_output]
  command = ['zip', '-q', '-r', output, '.'] + excludes.flat_map { |pattern| ['-x', pattern] }
  stdout, stderr, status = @runner.capture3(*command, chdir: project.root)
  raise CommandError, "zip failed: #{stderr.empty? ? stdout : stderr}" unless status.success?

  output
end