Class: Knitter::Yarn

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/knitter/yarn.rb

Defined Under Namespace

Classes: CommandExecutionError

Constant Summary collapse

PACKAGE_AREAS = 
{
    dev: 'devDependencies',
    peer: 'peerDependencies',
    optional: 'optionalDependencies',
    dependencies: 'dependencies'
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(directory) ⇒ Yarn

Returns a new instance of Yarn.



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# File 'lib/knitter/yarn.rb', line 22

def initialize(directory)
    @directory = Pathname.new(directory)
end

Instance Attribute Details

#directory ⇒ Object (readonly)

Returns the value of attribute directory.



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# File 'lib/knitter/yarn.rb', line 20

def directory
  @directory
end

Instance Method Details

#add(package) ⇒ Object 



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# File 'lib/knitter/yarn.rb', line 34

def add(package)
    name = package.name
    unless package.version.latest?
        name << '@' << package.version.to_s
    end
    execute(
        *['add', name, package_save_as_flag(package)].compact
    )
end

#init ⇒ Object 



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# File 'lib/knitter/yarn.rb', line 26

def init
    execute('init', '--yes')
end

#ok? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/knitter/yarn.rb', line 30

def ok?
    @sh && @sh.status.exitstatus == 0
end

#package_file ⇒ Object 



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# File 'lib/knitter/yarn.rb', line 44

def package_file
    @directory.join "package.json"
end

#package_file_contents ⇒ Object 



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# File 'lib/knitter/yarn.rb', line 62

def package_file_contents
    JSON.parse(package_file.read)
end

#packages ⇒ Object 



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# File 'lib/knitter/yarn.rb', line 48

def packages
    json = package_file_contents
    Enumerator.new do | enum |
        PACKAGE_AREAS.each do | type, area |
            (json[area] || []).each do | package, version |
                package = Package.new(package, yarn: self)
                package.version = version
                package.dependency_type = type
                enum << package
            end
        end
    end
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/knitter/yarn.rb', line 66

def valid?
    package_file.exist? && package_file_contents
end