Class: Berkshelf::Installer::Worker

Inherits:
Object
  • Object
show all
Defined in:
lib/berkshelf/installer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(berksfile) ⇒ Worker

Returns a new instance of Worker.



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# File 'lib/berkshelf/installer.rb', line 73

def initialize(berksfile)
  @berksfile  = berksfile
  @downloader = Downloader.new(berksfile)
end

Instance Attribute Details

#berksfile ⇒ Object (readonly)

Returns the value of attribute berksfile.



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# File 'lib/berkshelf/installer.rb', line 70

def berksfile
  @berksfile
end

#downloader ⇒ Object (readonly)

Returns the value of attribute downloader.



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# File 'lib/berkshelf/installer.rb', line 71

def downloader
  @downloader
end

Instance Method Details

#install(dependency) ⇒ CachedCookbook

Install a specific dependency.

Parameters:

Returns:



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# File 'lib/berkshelf/installer.rb', line 84

def install(dependency)
  Berkshelf.log.info "Installing #{dependency}"

  if dependency.installed?
    Berkshelf.log.debug "  Already installed - skipping install"

    Berkshelf.formatter.use(dependency)
    dependency.cached_cookbook
  else
    name, version = dependency.name, dependency.locked_version.to_s
    source = berksfile.source_for(name, version)

    # Raise error if our Berksfile.lock has cookbook versions that
    # can't be found in sources
    raise MissingLockfileCookbookVersion.new(name, version, "in any of the sources") unless source

    Berkshelf.log.debug "  Downloading #{dependency.name} (#{dependency.locked_version}) from #{source}"

    cookbook = source.cookbook(name, version)

    Berkshelf.log.debug "    => #{cookbook.inspect}"

    Berkshelf.formatter.install(source, cookbook)

    downloader.download(name, version) do |stash|
      CookbookStore.import(name, version, stash)
    end
  end
end