Class: RubyUIConverter::Template

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby_ui_converter/template.rb

Overview

Represents a single .erb file and knows how to render its .rb equivalent.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path:, root:, config:) ⇒ Template

Returns a new instance of Template.



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# File 'lib/ruby_ui_converter/template.rb', line 8

def initialize(path:, root:, config:)
  @path = path
  @root = root.to_s
  @config = config
end

Instance Attribute Details

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/ruby_ui_converter/template.rb', line 6

def config
  @config
end

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/ruby_ui_converter/template.rb', line 6

def path
  @path
end

#root ⇒ Object (readonly)

Returns the value of attribute root.



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# File 'lib/ruby_ui_converter/template.rb', line 6

def root
  @root
end

Instance Method Details

#basename ⇒ Object

“index.html.erb” -> “index”; “_form.html.erb” -> “_form”



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# File 'lib/ruby_ui_converter/template.rb', line 23

def basename
  filename.split(".").first
end

#class_name ⇒ Object 



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# File 'lib/ruby_ui_converter/template.rb', line 42

def class_name
  Naming.class_name(basename)
end

#dir_rel ⇒ Object 



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# File 'lib/ruby_ui_converter/template.rb', line 37

def dir_rel
  dir = File.dirname(rel_path)
  dir == "." ? "" : dir
end

#filename ⇒ Object 



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# File 'lib/ruby_ui_converter/template.rb', line 18

def filename
  File.basename(path)
end

#full_const ⇒ Object 



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# File 'lib/ruby_ui_converter/template.rb', line 50

def full_const
  (namespace_parts + [class_name]).join("::")
end

#init_args ⇒ Object

Keyword arguments the generated initializer/props expose: bare locals for partials (referenced through attr_readers), controller ivars for top-level views (referenced directly as @ivars).



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# File 'lib/ruby_ui_converter/template.rb', line 86

def init_args
  partial? ? locals : ivars
end

#ivars ⇒ Object

Top-level views read controller instance variables (‘@products`); partials take their data as bare locals instead.



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# File 'lib/ruby_ui_converter/template.rb', line 79

def ivars
  @ivars ||= partial? ? [] : LocalsDetector.new(tree).ivars
end

#locals ⇒ Object 



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# File 'lib/ruby_ui_converter/template.rb', line 73

def locals
  @locals ||= partial? ? LocalsDetector.new(tree).locals : []
end

#namespace_parts ⇒ Object 



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# File 'lib/ruby_ui_converter/template.rb', line 46

def namespace_parts
  Naming.namespace_parts(dir_rel, config.base_namespace)
end

#output_filename ⇒ Object 



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# File 'lib/ruby_ui_converter/template.rb', line 54

def output_filename
  "#{basename.sub(/\A_/, "")}.rb"
end

#output_path ⇒ Object 



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# File 'lib/ruby_ui_converter/template.rb', line 58

def output_path
  target_dir =
    if config.output_root
      File.join(config.output_root, dir_rel)
    else
      File.dirname(File.expand_path(path))
    end

  File.join(target_dir, output_filename)
end

#partial? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ruby_ui_converter/template.rb', line 27

def partial?
  filename.start_with?("_")
end

#rel_path ⇒ Object 



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# File 'lib/ruby_ui_converter/template.rb', line 31

def rel_path
  expanded = File.expand_path(path)
  base = File.expand_path(root)
  expanded.delete_prefix(base).sub(%r{\A/}, "")
end

#render ⇒ Object 



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# File 'lib/ruby_ui_converter/template.rb', line 90

def render
  builder = CodeBuilder.new(indent: config.indent)
  builder.line("# frozen_string_literal: true")
  builder.line
  builder.line("# Auto-generated by ruby_ui_converter")
  builder.line("# Source: #{rel_path}")
  builder.line

  namespace_parts.each do |segment|
    builder.line("module #{segment}")
    builder.indent
  end

  builder.line("class #{class_name} < #{config.base_class}")
  builder.indent

  emit_initializer(builder)

  builder.line("def #{config.template_method}")
  builder.indent
  Transformer.new(config: config, template: self).emit(tree, builder)
  builder.dedent
  builder.line("end")

  emit_readers(builder)

  builder.dedent
  builder.line("end")

  namespace_parts.each do
    builder.dedent
    builder.line("end")
  end

  builder.to_s
end

#source ⇒ Object 



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# File 'lib/ruby_ui_converter/template.rb', line 14

def source
  @source ||= File.read(path)
end

#tree ⇒ Object 



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# File 'lib/ruby_ui_converter/template.rb', line 69

def tree
  @tree ||= Parser.new(source).parse
end