Class: Bindeps::Dependency

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

Instance Method Summary collapse

Constructor Details

#initialize(name, binaries, versionconfig, urlconfig) ⇒ Dependency

Returns a new instance of Dependency.



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# File 'lib/bindeps.rb', line 30

def initialize(name, binaries, versionconfig, urlconfig)
  @name = name
  unless binaries.is_a? Array
    raise ArgumentError,
          "binaries must be an array"
  end
  @binaries = binaries
  @version = versionconfig['number']
  @version_cmd = versionconfig['command']
  @url = choose_url urlconfig
end

Instance Method Details

#all_installed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bindeps.rb', line 89

def all_installed?
  @binaries.each do |bin|
    unless installed? bin
      puts "required binary #{bin} is not installed"
      return false
    end
  end
  true
end

#choose_url(urlconfig) ⇒ Object 



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# File 'lib/bindeps.rb', line 51

def choose_url urlconfig
  arch = System.arch
  if urlconfig.key? arch
    sys = urlconfig[arch]
    os = System.os.to_s
    if sys.key? os
      return sys[os]
    else
      raise UnsupportedSystemError,
            "bindeps config for #{@name} #{arch} doesn't contain an entry for #{os}"
    end
  else
    raise UnsupportedSystemError,
          "bindeps config for #{@name} doesn't contain an entry for #{arch}"
  end
end

#download ⇒ Object 



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# File 'lib/bindeps.rb', line 68

def download
  `curl -O -J -L #{@url}`
  unless $?.to_i == 0
    raise DownloadFailedError,
          "download of #{@url} for #{@name} failed"
  end
end

#install(bin) ⇒ Object 



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# File 'lib/bindeps.rb', line 116

def install bin
  bindir = File.join(ENV['GEM_HOME'], 'bin')
  puts "installing #{bin} to #{bindir}"
  FileUtils.cp(bin, File.join(bindir, File.basename(bin)))
end

#install_missing ⇒ Object 



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# File 'lib/bindeps.rb', line 42

def install_missing
  unless all_installed?
    puts "binary dependency #{@name} not installed"
    puts "it will now be downloaded and installed"
    download
    unpack
  end
end

#installed?(bin) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bindeps.rb', line 99

def installed? bin
  path = Which.which(bin)
  if path
    ret = `#{@version_cmd} 2>&1`.split("\n").map{ |l| l.strip }.join('|')
    if ret && (/#{@version}/ =~ ret)
      return path
    else
      puts "installed version should have been #{@version}"
      puts "but it was:"
      puts ret
    end
  else
    puts "binary #{bin} is not in the PATH"
  end
  false
end

#unpack ⇒ Object 



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# File 'lib/bindeps.rb', line 76

def unpack
  archive = File.basename(@url)
  Unpacker.unpack(archive) do |dir|
    Dir.chdir dir do
      Dir['**/*'].each do |extracted|
        if @binaries.include? File.basename(extracted)
          install(extracted) unless File.directory?(extracted)
        end
      end
    end
  end
end