Class: ElmInstall::Identifier

Inherits:
Base
  • Object
show all
Defined in:
lib/elm_install/identifier.rb

Overview

Identifies dependencies

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(directory, options = {}) ⇒ Indentifier

Initialize a new identifier.

Parameters:

  • directory (Dir) —

    The initial directory

  • options (Hash) (defaults to: {}) —

    The options



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# File 'lib/elm_install/identifier.rb', line 20

def initialize(directory, options = {})
  @options = options
  @dependency_sources = dependency_sources directory
  @initial_elm_version = elm_version directory
  @initial_dependencies = identify directory
  self
end

Instance Attribute Details

#initial_dependencies ⇒ Array<Dependency> (readonly)

Returns The initial dependencies.

Returns:

  • (Array<Dependency>) —

    The initial dependencies



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# File 'lib/elm_install/identifier.rb', line 5

def initial_dependencies
  @initial_dependencies
end

#initial_elm_version ⇒ String (readonly)

Returns The initial Elm version.

Returns:

  • (String) —

    The initial Elm version



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# File 'lib/elm_install/identifier.rb', line 11

def initial_elm_version
  @initial_elm_version
end

#options ⇒ Hash (readonly)

Returns The options.

Returns:

  • (Hash) —

    The options



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# File 'lib/elm_install/identifier.rb', line 8

def options
  @options
end

Instance Method Details

#dependency_sources(directory) ⇒ Hash

Returns the dependency sources for the given directory.

Parameters:

  • directory (Dir) —

    The directory

Returns:

  • (Hash) —

    The directory sources



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# File 'lib/elm_install/identifier.rb', line 34

def dependency_sources(directory)
  json(directory)['dependency-sources'].to_h
end

#elm_version(directory) ⇒ String

Returns the Elm version for a package

Parameters:

  • directory (Dir) —

    The directory

Returns:

  • (String) —

    The version



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# File 'lib/elm_install/identifier.rb', line 54

def elm_version(directory)
  if json(directory)['elm-version'] =~ /<\s*0\.19/
    '0.18'
  elsif json(directory)['elm-version'] =~ /<\s*0\.18/
    '0.17'
  elsif json(directory)['elm-version'] =~ /<\s*0\.17/
    '0.16'
  else
    ''
  end
end

#identify(directory) ⇒ Array

Identifies dependencies from a directory

Parameters:

  • directory (Dir) —

    The directory

Returns:

  • (Array) —

    The dependencies



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# File 'lib/elm_install/identifier.rb', line 72

def identify(directory)
  raw = json(directory)

  dependencies = raw['dependencies'].to_h

  dependency_sources =
    raw['dependency-sources']
    .to_h
    .merge(@dependency_sources)

  dependencies.map do |package, constraint|
    constraints = Utils.transform_constraint constraint

    type =
      if dependency_sources.key?(package)
        source = dependency_sources[package]
        case source
        when Hash
          uri_type source['url'], Branch::Just(source['ref'])
        when String
          if File.exist?(source)
            Type::Directory(Pathname.new(source))
          else
            uri_type source, Branch::Just('master')
          end
        end
      else
        Type::Git(Uri::Github(package), Branch::Nothing())
      end

    type.source.identifier = self
    type.source.options = @options

    Dependency.new(package, type.source, constraints)
  end
end

#json(directory) ⇒ Hash

Returns the contents of the ‘elm-package.json’ for the given directory.

Parameters:

  • directory (Dir) —

    The directory

Returns:

  • (Hash) —

    The contents



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# File 'lib/elm_install/identifier.rb', line 132

def json(directory)
  path = File.join(directory, 'elm-package.json')
  JSON.parse(File.read(path))
rescue JSON::ParserError
  warn "Invalid JSON in file: #{path.bold}"
rescue Errno::ENOENT
  warn "Could not find file: #{path.bold}"
end

#uri_type(url, branch) ⇒ Type

Returns the type from the given arguments.

Parameters:

  • url (String) —

    The base url

  • branch (Branch) —

    The branch

Returns:

  • (Type) —

    The type



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# File 'lib/elm_install/identifier.rb', line 116

def uri_type(url, branch)
  uri = GitCloneUrl.parse(url)
  case uri
  when URI::SshGit::Generic
    Type::Git(Uri::Ssh(uri), branch)
  when URI::HTTP
    Type::Git(Uri::Http(uri), branch)
  end
end

#version(directory) ⇒ Semverse::Version

Returns the version of a package in the given directory.

Parameters:

  • directory (Dir) —

    The directory

Returns:



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# File 'lib/elm_install/identifier.rb', line 44

def version(directory)
  Semverse::Version.new(json(directory)['version'])
end

#warn(message) ⇒ Hash

Exits the current process and logs a given message.

Parameters:

  • message (String) —

    The message

Returns:

  • (Hash) —

    An empty hash



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# File 'lib/elm_install/identifier.rb', line 147

def warn(message)
  Logger.arrow message if @options[:vebose]
  {}
end