Class: MKBrut::Segments::BareBones::InsertCustomElement

Inherits:
Ops::BaseOp
  • Object
show all
Defined in:
lib/mkbrut/segments/bare_bones.rb

Instance Method Summary collapse

Methods inherited from Ops::BaseOp

dry_run=, dry_run?, #dry_run?, fileutils_args, #fileutils_args

Constructor Details

#initialize(project_root:, element_class_name:) ⇒ InsertCustomElement

Returns a new instance of InsertCustomElement.



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# File 'lib/mkbrut/segments/bare_bones.rb', line 97

def initialize(project_root:, element_class_name:)
  @file               = project_root / "app" / "src" / "front_end" / "js" / "index.js"
  @element_class_name = element_class_name
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/mkbrut/segments/bare_bones.rb', line 101

def call
  if dry_run?
    puts "Would insert custom element '#{@element_class_name}' into #{@file}"
    return
  end
  inserted = false
  new_source = []
  File.read(@file).split("\n").each do  |line|
    regexp = /^document\.addEventListener\(\"DOMContentLoaded\"/
    if line.match?(regexp)
      new_source << %{import #{@element_class_name} from "./#{@element_class_name}"}
      new_source << line
      new_source << %{  #{@element_class_name}.define()}
      inserted = true
    else
      new_source << line
    end
  end
  if !inserted
    raise "Could not find a place to insert code in '#{@file}'. Trying to find a line that matches this regular expression:\n\n#{regexp.inspect}"
  end
  File.open(@file, "w") do |file|
    file.puts new_source.join("\n")
  end
end