Fix Sombrero Imports

fix-sombrero-imports.fb

#!/usr/bin/env ruby

# Build a map of component names to paths - conveniently, there's a file
# already containing that information
def build_component_map()
  text = File.read("#{ENV['HOME']}/projects/sombrero/components/index.js")
  text.lines.reduce({}) do |res, line|
    if /^\s+(\w+):\s*require\(\'\.([^']*)/ =~ line
      key = $1
      path = "sombrero/components#{$2}"
      res[key] = path
    end
    res
  end
end

def process_file(file_name, component_map)
  file_changed = false
  text = File.read(file_name)

  sombrero_imports = []

  new_contents = text.gsub(/^import {([^\}]+)} from 'sombrero'.*$/) do |match|
    # Split by comma and trim whitespace
    sombrero_imports = $1.split(',').map { |s| s.gsub(/\s/, '') }

    # Generate new import statements
    lines = sombrero_imports.map do |cmp|
      "import #{cmp} from '#{component_map[cmp]}';"
    end

    file_changed = true

    lines.join("\n")
  end

  # puts new_contents only if there was at least one change
  if file_changed
    File.write(file_name, new_contents)
  fi

end

component_map = build_component_map()

file_paths = Dir["{components,pages}/**/*.js"].map { |file| File.join("#{Dir.pwd}", file) }

file_paths.map do |path|
  process_file path, component_map
end