Module: DepthCharge

Defined in:
lib/depth_charge/version.rb,
lib/depth_charge.rb

Overview

:nodoc:

Defined Under Namespace

Modules: VERSION

Constant Summary collapse

USER_HOME = 
File.expand_path('~')

Class Method Summary collapse

Class Method Details

.display(hash, header, show_files = true) ⇒ Object 



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# File 'lib/depth_charge.rb', line 74

def display(hash, header, show_files = true)
  unless hash.empty?
    puts "\n#{header}\n#{'='*header.length}"
    hash.keys.sort.each do |k|
      puts "#{k}"
      puts "  #{hash[k].join("\n  ")}\n" if show_files
    end
  end
end

.find_requirements(root) ⇒ Object 



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# File 'lib/depth_charge.rb', line 36

def find_requirements(root)
  root ||= File.dirname(__FILE__) + "/.."
  requirements = {}

  Dir.chdir(root)
  Dir['**/*.rb'].each do |path|
    next if path =~ /^vendor\/rails/
    File.open( path ) do |f|
      f.grep( /^(require|gem)/ ) do |line|
        required = line.scan(/('|")(.+?)('|")/).flatten[1]
        unless [/File/, /\*/, /\</, /#/, /\.{2}/, /^\//].detect {|pattern| required =~ pattern}
          requirements[required] ||= []
          requirements[required] << path
        end
      end
    end
  end

  installed_gems   = local_gems
  all_gems         = remote_gems
  uninstalled_gems = all_gems - installed_gems

  installed   = {}
  uninstalled = {}
  other       = {}
  requirements.keys.sort.each do |k|
    if installed_gems.include?(k)
      installed[k]   = requirements[k] 
    elsif uninstalled_gems.include?(k)
      uninstalled[k] = requirements[k] 
    else
      other[k] = requirements[k]
    end
  end
  
  return installed, uninstalled, other
end

.gem_list(scope = 'local') ⇒ Object 



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# File 'lib/depth_charge.rb', line 7

def gem_list(scope = 'local')
  process_gem_list(`gem list --#{scope} --no-verbose`, scope)
end

.local_gems ⇒ Object 



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# File 'lib/depth_charge.rb', line 16

def local_gems
  gem_list
end

.process_gem_list(raw_gem_list, scope = 'remote') ⇒ Object 



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# File 'lib/depth_charge.rb', line 11

def process_gem_list(raw_gem_list, scope = 'remote')
  gems = raw_gem_list.split(/\n/).select {|g| g =~ / \(/}
  gems.map! {|g| g.sub(/\s+.+$/, '')}
end

.remote_gems ⇒ Object 



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# File 'lib/depth_charge.rb', line 20

def remote_gems
  gems = []
  if File.exists?(File.join(USER_HOME, '.remote_gemlist'))
    File.open(File.join(USER_HOME, '.remote_gemlist'), 'r') do |file|
      gems = file.readlines.map {|l| l.chomp}
    end
  else
    puts "Creating remote gem list cache (this may take awhile)"
    gems = gem_list('remote')
    File.open(File.join(USER_HOME, '.remote_gemlist'), 'wb+') do |file|
      file.puts gems.join("\n")
    end
  end
  gems
end

.run(path) ⇒ Object 



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# File 'lib/depth_charge.rb', line 84

def run(path)
  installed, uninstalled, other = find_requirements(path)

  display(installed, 'INSTALLED GEMS', false)
  display(uninstalled, 'UNINSTALLED GEMS')
  display(other, 'OTHER REQUIREMENTS')
end