Class: Csspin::Commands::Pin

Inherits:
Object
  • Object
show all
Defined in:
lib/csspin/commands/pin.rb

Instance Method Summary collapse

Constructor Details

#initialize(resolver:, downloader:, writer:, printer:, fallback_candidates:, error_io: $stderr) ⇒ Pin

Returns a new instance of Pin.



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# File 'lib/csspin/commands/pin.rb', line 6

def initialize(resolver:, downloader:, writer:, printer:, fallback_candidates:, error_io: $stderr)
  @resolver = resolver
  @downloader = downloader
  @writer = writer
  @printer = printer
  @error_io = error_io
  @fallback_candidates = fallback_candidates
end

Instance Method Details

#run(input:, root:, io:) ⇒ Object 



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# File 'lib/csspin/commands/pin.rb', line 15

def run(input:, root:, io:)
  spec = Csspin::PackageSpec.parse(input)

  urls = @resolver.url_candidates_for(spec)
  tried_urls = []
  result = download_first_success(urls, tried_urls)

  unless result
    fallback_urls = @fallback_candidates.for(spec).reject { |url| tried_urls.include?(url) }
    result = download_first_success(fallback_urls, tried_urls)
  end

  unless result
    @error_io.puts "Unable to download CSS from jsDelivr for #{spec.full_name}"
    @error_io.puts "Tried: #{tried_urls.join(", ")}"
    return 1
  end

  saved_path = @writer.write(package_name: spec.package_name, content: result[:body])

  snippet_package = File.basename(saved_path, ".css")

  @printer.print_success(
    package_name: snippet_package,
    saved_path: saved_path,
    source_url: result[:url]
  )

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rescue ArgumentError => e
  @error_io.puts e.message
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rescue => e
  @error_io.puts "Pin failed: #{e.message}"
  1
end