Class: WGif::Installer

Inherits:
Object
  • Object
show all
Defined in:
lib/wgif/installer.rb

Constant Summary collapse

DEPENDENCIES = 
[['ffmpeg', 'ffmpeg'],
['imagemagick', 'convert']]

Instance Method Summary collapse

Instance Method Details

#dependencies_installed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/wgif/installer.rb', line 23

def dependencies_installed?
  DEPENDENCIES.map { |_, binary| installed?(binary) }.inject(:&)
end

#homebrew_installed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/wgif/installer.rb', line 27

def homebrew_installed?
  Kernel.system 'brew info > /dev/null'
end

#install(dependency, binary) ⇒ Object 



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# File 'lib/wgif/installer.rb', line 31

def install(dependency, binary)
  unless installed?(binary)
    puts "Installing #{dependency}..."
    Kernel.system "brew install #{dependency}"
    puts "Successfully installed #{dependency}."
  end
end

#installed?(binary) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/wgif/installer.rb', line 39

def installed?(binary)
  Kernel.system "which #{binary} > /dev/null"
end

#run ⇒ Object 



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# File 'lib/wgif/installer.rb', line 7

def run
  if dependencies_installed?
    puts 'All dependencies are installed. Go make a gif.'
    Kernel.exit 0
  end
  if homebrew_installed?
    DEPENDENCIES.each do |dependency, binary|
      install(dependency, binary)
    end
  else
    puts "WGif can't find Homebrew. Visit http://brew.sh/ to get it."
    Kernel.exit 1
  end
  Kernel.exit 0
end