Class: Shellfie::DependencyChecker

Inherits:
Object
  • Object
show all
Defined in:
lib/shellfie/dependency_checker.rb

Constant Summary collapse

IMAGE_MAGICK_COMMANDS = 
%w[magick convert].freeze

Class Method Summary collapse

Class Method Details

.configure_mini_magick!(timeout: 30) ⇒ Object 



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# File 'lib/shellfie/dependency_checker.rb', line 28

def configure_mini_magick!(timeout: 30)
  return unless defined?(MiniMagick) && MiniMagick.respond_to?(:timeout=)

  MiniMagick.timeout = timeout
end

.doctor(output_dir: Dir.pwd) ⇒ Object 



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# File 'lib/shellfie/dependency_checker.rb', line 34

def doctor(output_dir: Dir.pwd)
  [
    check("Ruby", RUBY_VERSION, Gem::Version.new(RUBY_VERSION) >= Gem::Version.new("3.0.0")),
    check("ImageMagick", imagemagick_path || "not found", imagemagick_available?),
    check("Writable output", output_dir, File.writable?(output_dir)),
    check("Encoding", Encoding.default_external.name, true)
  ]
end

.ensure_imagemagick! ⇒ Object

Raises:



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# File 'lib/shellfie/dependency_checker.rb', line 18

def ensure_imagemagick!
  return if imagemagick_available?

  raise DependencyError, <<~MSG
    ImageMagick not found
      → Please install ImageMagick: brew install imagemagick
      → Or visit: https://imagemagick.org/script/download.php
  MSG
end

.imagemagick_available? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/shellfie/dependency_checker.rb', line 14

def imagemagick_available?
  !imagemagick_path.to_s.empty?
end

.imagemagick_path ⇒ Object 



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# File 'lib/shellfie/dependency_checker.rb', line 10

def imagemagick_path
  @imagemagick_path ||= find_executable(IMAGE_MAGICK_COMMANDS)
end