Class: Blubber::Layer

Inherits:
Object
  • Object
show all
Defined in:
lib/blubber/layer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(context:, directory:, name:) ⇒ Layer

Returns a new instance of Layer.



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# File 'lib/blubber/layer.rb', line 10

def initialize(context:, directory:, name:)
  @context = context
  @directory = Pathname.new(directory)
  @name = name
end

Instance Attribute Details

#build_id ⇒ Object

Returns the value of attribute build_id.



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# File 'lib/blubber/layer.rb', line 8

def build_id
  @build_id
end

#directory ⇒ Object (readonly)

Returns the value of attribute directory.



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# File 'lib/blubber/layer.rb', line 7

def directory
  @directory
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/blubber/layer.rb', line 7

def name
  @name
end

Instance Method Details

#branch_tag ⇒ Object 



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# File 'lib/blubber/layer.rb', line 75

def branch_tag
  filter(build_info.branch_name) unless build_info.branch_name.empty?
end

#build ⇒ Object

Actions



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# File 'lib/blubber/layer.rb', line 17

def build
  builder.build
end

#build_tag ⇒ Object 



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# File 'lib/blubber/layer.rb', line 79

def build_tag
  branch_tag || build_info.commit
end

#cache ⇒ Object 



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# File 'lib/blubber/layer.rb', line 42

def cache
  @cache ||= begin
    cache_tags = []

    if build_info.last_successful_commit
      cache_tags << build_info.last_successful_commit.to_s
    end
    cache_tags << build_tag.to_s if build_tag
    cache_tags << branch_tag.to_s if branch_tag
    cache_tags << 'latest'

    cache_tags
      .map { |tag| "#{project}:#{tag}" }
      .find { |img| runner.run("docker pull #{img}").zero? }
  end
end

#project ⇒ Object 



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# File 'lib/blubber/layer.rb', line 34

def project
  "#{context.docker_registry}/#{repo}"
end

#project_tag(tag) ⇒ Object 



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# File 'lib/blubber/layer.rb', line 38

def project_tag(tag)
  "#{project}:#{tag}"
end

#push ⇒ Object 



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# File 'lib/blubber/layer.rb', line 25

def push
  builder.push
end

#repo ⇒ Object

Accessors



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# File 'lib/blubber/layer.rb', line 30

def repo
  @repo ||= name.split('/').select { |p| p[/[a-z0-9]+/] }.join('/')
end

#tag ⇒ Object 



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# File 'lib/blubber/layer.rb', line 21

def tag
  builder.tag
end

#tags ⇒ Object 



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# File 'lib/blubber/layer.rb', line 59

def tags
  @tags ||= begin
    tags = []
    tags << build_info.commit

    unless build_info.dirty?
      tags << branch_tag if branch_tag
      tags << 'latest' if branch_tag == 'master'
    end

    tags << File.read(directory.join('Dockerfile')).scan(/LABEL version=([\w][\w.-]*)/)

    tags.flatten.map { |t| "#{t}#{build_info.dirty? ? '-dirty' : ''}" }
  end
end