Class: SvelteOnRails::Generators::InstallGenerator

Inherits:
Rails::Generators::Base
  • Object
show all
Defined in:
lib/generators/svelte_on_rails/install/install_generator.rb

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ InstallGenerator

Returns a new instance of InstallGenerator.



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# File 'lib/generators/svelte_on_rails/install/install_generator.rb', line 14

def initialize(*args)

  super
  validate_raw_options!(args)
  @utils = SvelteOnRails::Installer::Utils
  @gem_utils = SvelteOnRails::GemUtils
  @npm_utils = SvelteOnRails::Installer::Npm
  @template_placeholders = []
  @tmpdirs = []
  @sandboxes_dir = Rails.root.join('tmp', 'svelte-on-rails-installer-sandbox-tests')
  FileUtils.rm_rf(@sandboxes_dir) if @sandboxes_dir.exist?

  if @gem_utils.vite_rails_in_gemfile?
    @non_virgin_indicator = 'vite_rails found in Gemfile'
  else
    nvi = [
      'config/vite.json',
      'vite.config.ts',
      'vite-ssr.config.ts',
    ].find { |f| Rails.root.join(f).exist? }
    @non_virgin_indicator = "#{nvi} found" if nvi
  end

  @installation_type = if options[:force]
                         :force
                       elsif !@non_virgin_indicator
                         :virgin
                       else
                         :careful
                       end
end

Instance Method Details

#add_package_json_build_script ⇒ Object 



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# File 'lib/generators/svelte_on_rails/install/install_generator.rb', line 257

def add_package_json_build_script
  pkg_js = JSON.parse(File.read('package.json'))
  pkg_js['scripts'] ||= { 'build:ssr': "vite build --config vite-ssr.config.ts" }
  File.write('package.json', JSON.pretty_generate(pkg_js))
end

#add_svelte_to_vite_config ⇒ Object 



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# File 'lib/generators/svelte_on_rails/install/install_generator.rb', line 210

def add_svelte_to_vite_config
  path = Rails.root.join('vite.config.ts')
  return unless path.exist?

  source = File.read(path)
  return if source.match?(/plugins\s*:\s*\[[\s\S]*?\bsvelte\s*\(/m)
  unless [:virgin, :force].include?(@installation_type)
    return unless @utils.ask_yn('vite.config.ts has no svelte() plugin. Add it now?')
  end

  r = @utils.edit_vite_config_ts(path)

  if r[:success]
    say 'Added svelte() and @sveltejs/vite-plugin-svelte import to vite.config.ts', :green
  else
    say 'ERROR: Failed to add svelte() and @sveltejs/vite-plugin-svelte import to vite.config.ts', :red
    exit(1)
  end
end

#cleanup ⇒ Object 



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# File 'lib/generators/svelte_on_rails/install/install_generator.rb', line 269

def cleanup
  if @sandboxes_dir.exist?
    FileUtils.rm_rf(@sandboxes_dir)
    say "Removed #{@sandboxes_dir}", :green
  end
end

#completed_note ⇒ Object 



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# File 'lib/generators/svelte_on_rails/install/install_generator.rb', line 276

def completed_note
  puts '-' * 80
  puts ' ▶︎▶︎▶︎ INSTALLATION COMPLETE'
  puts '-' * 80
end

#config_base ⇒ Object 



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# File 'lib/generators/svelte_on_rails/install/install_generator.rb', line 248

def config_base
  @utils.write_templates(
    ['config_base'],
    ask_for_overwrite: !options[:force],
    placeholders: @template_placeholders,
    vite_dir: @vite_source_code_dir
  )
end

#initial_questions ⇒ Object 



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# File 'lib/generators/svelte_on_rails/install/install_generator.rb', line 230

def initial_questions

  @vite_source_code_dir = SvelteOnRails::Lib::Utils.vite_source_code_dir
  if @vite_source_code_dir != 'app/frontend'
    say "WARNING: The Vite source code directory is «#{@vite_source_code_dir}», instead of the usual «app/frontend», in config/vite.json.", :yellow
    q = "         Do you want to continue with «#{@vite_source_code_dir}»?"
    exit(0) unless @utils.ask_yn(q)
  end

  @template_placeholders.push(['$$vite-source-code-dir$$', @vite_source_code_dir])

  unless @utils.write_templates(['config_base'], ask_for_overwrite: !options[:force], dry_run: true)
    say "Installation aborted.", :red
    exit(0)
  end

end

#installer_note ⇒ Object 



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# File 'lib/generators/svelte_on_rails/install/install_generator.rb', line 46

def installer_note
  puts
  puts '=' * 80
  puts ' ▶︎▶︎▶︎ INSTALLING SVELTE-ON-RAILS'
  if @installation_type == :force
    puts "  • FORCED (option --force was given)"
  elsif @installation_type == :virgin
    puts "  • Virgin installation"
  elsif @installation_type == :careful
    puts "  • Careful installation (#{@non_virgin_indicator})"
  end
  puts '=' * 80
end

#npm_package_to_application_js ⇒ Object 



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# File 'lib/generators/svelte_on_rails/install/install_generator.rb', line 263

def npm_package_to_application_js
  js_i = SvelteOnRails::Installer::Javascript
  init_stat = '@csedl/svelte-on-rails'
  js_i.append_import_statement(application_js_path, init_stat, "import '#{init_stat}';")
end

#npm_packages ⇒ Object 



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# File 'lib/generators/svelte_on_rails/install/install_generator.rb', line 84

def npm_packages

  # check vite-rails installation

  svelte = @npm_utils.inspect_package('svelte')
  vite = @npm_utils.inspect_package('vite')
  vite_plugin_svelte = @npm_utils.inspect_package('@sveltejs/vite-plugin-svelte')

  if svelte && vite && vite_plugin_svelte
    say "✓ required npm packages are already installed", :green
    return
  end

  always_required_packages = [
    '@csedl/svelte-on-rails@latest',
    'typescript@latest',
    '@types/node@latest'
  ]

  candidate_sets = [
    [
      ('svelte@latest' unless svelte),
      ('vite@latest' unless vite),
      ('@sveltejs/vite-plugin-svelte@latest' unless vite_plugin_svelte)
    ].compact + always_required_packages,
    [
      'svelte@latest',
      'vite@latest',
      '@sveltejs/vite-plugin-svelte@latest'
    ] + always_required_packages,
    [
      'svelte@~5.55.4',
      'vite@~8.0.8',
      '@sveltejs/vite-plugin-svelte@~7.0.0',
      '@csedl/svelte-on-rails@latest',
      'typescript@~6.0.2',
      '@types/node@~25.6.0'
    ]
  ]

  # test install

  failed_packages = []
  i = 0
  passing_set = candidate_sets.find do |packages_to_try|
    i += 1
    tit = if i == 1
            "Checking npm dependencies in isolated sandbox"
          else
            "FALLBACK #{i}"
          end
    r = SvelteOnRails::Installer::NpmSandbox.dry_run(
      packages_to_try,
      project_root: Rails.root.to_s,
      sandboxes_root: @sandboxes_dir,
      title: tit
    )
    @tmpdirs.push(r[:tmpdir])
    if r[:success]
      true
    else
      failed_packages.push(packages_to_try)
      false
    end
  end

  if passing_set.present?
    say "✓ Dependency check passed", :green
  else
    say '-' * 80
    say "ERROR: Unable to fix dependency issues", :red
    say "Tried to test-installation within a TempDir, outside the project.", :red
    say "Theese attemtpts failed to install required packages:", :red
    say " • #{failed_packages.map { |p| p.join(' + ') }.join("\n • ")}", :red
    say "Installer cannot continue.", :red
    say "You must install theese packages and resolve dependency issues manually.", :red
    say "After resolved it, you can run this command again.", :red
    say "The failed sandbox tests you can find in tmp/svelte-on-rails-installer-sandboxes", :red
    exit 1
  end

  # prompt developer

  if passing_set.any?
    say "Ready to install:", :yellow unless svelte
    say " • " + passing_set.join("\n • "), :yellow if passing_set.any?
    loop do
      break if @installation_type == :virgin
      say "Continue? (Y/n)", :yellow unless svelte
      input = STDIN.gets
      answer = input.strip.downcase
      if answer == "n" || answer == "no"
        say "Installation aborted.", :red
        exit(0)
      elsif answer == "y" || answer == "yes"
        break
      end
    end
  end

  # install packages

  passing_set.each do |package|

    stdout, stderr, status = Open3.capture3("npm install #{package}", chdir: Rails.root)

    success_regex = /
        (?:^|\n)\s*(?:added|changed|removed|up\ to\ date)\b[^\n]*\n
        [\s\S]*?
        (?:^|\n)\s*found\s+\d+\s+vulnerabilities?\b
      /ix

    if status.success? && stdout.match?(success_regex)
      say "#{package} ✓", :green
    else
      puts "#{package} ✗"
      puts '-'*80
      puts stdout
      puts '-'*80
      warn stderr unless stderr.to_s.strip.empty?
      puts '-'*80
    end
  end

end

#vite_rails ⇒ Object 



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# File 'lib/generators/svelte_on_rails/install/install_generator.rb', line 60

def vite_rails

  vite_installed = Rails.root.join('config', 'vite.json').exist? && Rails.root.join('vite.config.ts').exist?

  if @gem_utils.vite_rails_in_gemfile?
    say "✓ vite_rails gem already present in Gemfile", :green
  else
    say '-' * 80, :yellow
    say "Adding vite_rails gem to Gemfile...", :yellow
    @gem_utils.install_gem('vite_rails', force: true)
  end

  if vite_installed
    say "✓ vite_rails installer appears to have already run (found config/vite.json and vite.config.ts)", :green
    return
  end

  say '-' * 80, :yellow
  say "running: bundle exec vite install...", :yellow
  stdout, stderr, status = Open3.capture3('bundle exec vite install', chdir: Rails.root)
  puts stdout
  raise(stderr.presence || "bundle exec vite install failed") unless status.success?
end