A pipeline script to expedite my react-three-fiber workflow. Blender -> Draco Compression -> GLTFJSX -> Component

pipeline.rb

#!/home/tanner/.rvm/rubies/ruby-2.7.2/bin/ruby
# frozen_string_literal: false

require 'pathname'
require 'colorize'

# rubocop:disable Style/Documentation, Style/ClassVars, Style/GuardClause, Metrics/AbcSize

class Pipeline
  @@project_dir         = Dir.new("#{Dir.home}/Development/tanman.dev")
  @@blender_exports_dir = Dir.new("#{Dir.home}/Blender/tanman.dev/exports")
  @@draco_output_dir    = Dir.new("#{@@project_dir.path}/public/gltf")
  @@jsx_output_dir      = Dir.new("#{@@project_dir.path}/src/components")

  def initialize(model_filename)
    validate(model_filename)

    @model_path          = Pathname.new("#{@@blender_exports_dir.path}/#{model_filename}")
    @draco_file_name     = File.basename(@model_path, '.glb').concat('-draco.glb')
    @draco_path          = Pathname.new("#{@@draco_output_dir.path}/#{@draco_file_name}")
    @component_file_name = File.basename(@draco_path, '.glb').capitalize.concat('.tsx')
    @component_path      = Pathname.new("#{@@project_dir.path}/#{@component_file_name}")
    @camelcase_file_name = File.basename(@component_path, '-draco.tsx').split('-').map(&:capitalize).join.concat('.tsx')
    @camelcase_path      = Pathname.new("#{@@jsx_output_dir.path}/#{@camelcase_file_name}")

    create_backup_files
  end

  def draco_compression
    `gltf-pipeline -i #{@model_path} -o #{@draco_path} -d`
    puts "#{'Success:'.light_white.on_light_green} Draco compression"
  end

  def gltf_jsx
    `npx --no-install gltfjsx #{@draco_path} -t`
    puts "#{'Success:'.light_white.on_light_green} GLTF-JSX conversion"
  end

  def move_and_rename_component
    `mv #{@component_path} #{@camelcase_path}`
    `sed -i "s,/#{@draco_file_name},gltf/#{@draco_file_name},g" #{@camelcase_path}` # Fix paths inside component
    puts "#{'Success:'.light_white.on_light_green} #{@camelcase_file_name} created"
  end

  private

  def validate(filename)
    if filename.nil? || !File.file?("#{@@blender_exports_dir.path}/#{filename}")
      puts 'File not found:'.red + " #{@@blender_exports_dir.path}/#{filename}"
      exit
    end
  end

  def create_backup_files
    puts 'Creating backup files'.light_blue.on_black if File.file?(@draco_path) || File.file?(@camelcase_path)

    # If an existing .backup file is found, prompt user to overwrite
    `cp -S .backup --force --backup -i #{@draco_path} #{@draco_path}` if File.file?(@draco_path)
    `cp -S .backup --force --backup -i #{@camelcase_path} #{@camelcase_path}` if File.file?(@camelcase_path)
  end
end

# rubocop:enable Style/Documentation, Style/ClassVars, Style/GuardClause, Metrics/AbcSize

pipeline = Pipeline.new(ARGV[0])
pipeline.draco_compression
pipeline.gltf_jsx
pipeline.move_and_rename_component