Class: Grache::Packer

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

Constant Summary collapse

DEFAULT_INSTALL_OPTIONS = 
{
}
DEFAULT_PACK_OPTIONS = 
{
  dir: '.'
}
DEFAULT_ZIP_OPTIONS = 
{
}
CMDS = 
{
  # gemfile path
  'bundle-install-no-deployment' => 'bundle install --gemfile=%s --no-deployment',

  'bundle-install-deployment' => 'bundle install --gemfile=%s --deployment',

  # gemfile path
  # deployment path
  'bundle-install-deployment-path' => 'bundle install --gemfile=%s --deployment --path %s',

  # gemfile path
  'bundle-pack' => 'bundle pack --gemfile=%s --all',

  # gemspec path
  'gem-build' => 'gem build %s' # spec path
}

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.exec_cmd(cmd) ⇒ Object 



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# File 'lib/grache/packer/packer.rb', line 48

def exec_cmd(cmd)
  puts cmd
  system(cmd)
end

.find_gemfile(path) ⇒ Object 



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# File 'lib/grache/packer/packer.rb', line 53

def find_gemfile(path)
  gemfile_path = File.join(path, 'Gemfile')
  return gemfile_path if File.exist?(gemfile_path)

  new_path = File.expand_path(File.join(path, '..'))
  return nil if new_path == path

  find_gemfile(new_path)
end

.get_checksum(path) ⇒ Object 



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# File 'lib/grache/packer/packer.rb', line 63

def get_checksum(path)
  content = File.open(path).read
  # TODO: Return checksum here
  content
end

.get_gemfile_meta(path) ⇒ Object 



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# File 'lib/grache/packer/packer.rb', line 69

def get_gemfile_meta(path)
end

.install(opts = DEFAULT_INSTALL_OPTIONS) ⇒ Object 



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# File 'lib/grache/packer/packer.rb', line 72

def install(opts = DEFAULT_INSTALL_OPTIONS)
  opts = DEFAULT_INSTALL_OPTIONS.merge(opts)

  puts "Installing pack: #{JSON.pretty_generate(opts)}"

  dir = opts[:dir]
  fail ArgumentError, 'No directory specified' unless dir

  dir = File.expand_path(dir)

  gemfile = find_gemfile(dir)
  return unless gemfile

  gem_dir = File.dirname(gemfile)
  vendor_dir = File.join(gem_dir, 'vendor/')

  unless File.directory?(vendor_dir)
    puts "Creating #{vendor_dir}"
    FileUtils.mkdir_p vendor_dir
  end

  FileUtils.rm_rf File.join(vendor_dir, 'cache')

  gemfile_lock = "#{gemfile}.lock"
  sha = Digest::SHA2.file(gemfile_lock).hexdigest

  uri = URI.parse("https://gdc-ms-grache.s3.amazonaws.com/grache-#{sha}.zip")
  puts "Looking for #{uri.to_s}"

  name = uri.path.split('/').last
  FileUtils.rm_rf name if File.exists?(name)

  begin
    Net::HTTP.start(uri.host) do |http|
      resp = http.get(uri.path)
      if(resp.code == '200')
        open(name, 'wb') do |file|
          file.write(resp.body)
        end
      else
        Packer.pack(opts)
        return
      end
    end
  rescue => e
    puts "ERROR: #{e.inspect}"
  end

  Zip::File.open(name) do |zip_file|
    # Handle entries one by one
    zip_file.each do |entry|
      # Extract to file/directory/symlink
      puts "Extracting #{entry.name}"
      out_path = "vendor/#{entry.name}"
      entry.extract(out_path)
    end
  end

  puts "Removing old #{name}"
  FileUtils.rm_rf name
end

.pack(opts = DEFAULT_PACK_OPTIONS) ⇒ Object 



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# File 'lib/grache/packer/packer.rb', line 134

def pack(opts = DEFAULT_PACK_OPTIONS)
  opts = DEFAULT_PACK_OPTIONS.merge(opts)

  dir = opts[:dir]
  fail ArgumentError, 'No directory specified' unless dir

  dir = File.expand_path(dir)
  puts "Packing #{dir}"

  gemfile = find_gemfile(dir)
  return unless gemfile

  puts "Gemfile located at #{gemfile}" if gemfile
  gem_dir = File.dirname(gemfile)

  # TODO: Read gemfile programatically
  uses_gemspec = File.open(gemfile).read.index(/^gemspec$/) != nil
  if(uses_gemspec)
    tmp = File.join(gem_dir, '.gemspec')
    gemspecfile = tmp if File.exist?(tmp)
    gemspecfile = Dir.glob('*.gemspec').first if gemspecfile.nil?
  end

  gemfile_lock = "#{gemfile}.lock"
  unless File.exists?(gemfile_lock)
    cmd = CMDS['bundle-install-no-deployment'] % [gemfile]
    exec_cmd(cmd)
  end

  if uses_gemspec
    cmd = CMDS['gem-build'] % gemspecfile
    exec_cmd(cmd)
  end

  cache_dir = File.join(gem_dir, 'vendor')
  if File.directory?(cache_dir)
    puts "Deleting cache #{cache_dir}"
    FileUtils.rm_rf cache_dir
  end

  cmd = CMDS['bundle-pack'] % gemfile
  exec_cmd(cmd)
end

.zip(opts = DEFAULT_ZIP_OPTIONS) ⇒ Object 



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# File 'lib/grache/packer/packer.rb', line 178

def zip(opts = DEFAULT_ZIP_OPTIONS)
  opts = DEFAULT_ZIP_OPTIONS.merge(opts)

  puts "Zipping pack: #{JSON.pretty_generate(opts)}"

  dir = opts[:dir]
  fail ArgumentError, 'No directory specified' unless dir

  dir = File.expand_path(dir)
  puts "Zipping #{dir}"

  gemfile = find_gemfile(dir)
  return unless gemfile

  gem_dir = File.dirname(gemfile)
  vendor_dir = File.join(gem_dir, 'vendor/')

  unless File.directory?(vendor_dir)
    puts "Vendor directory does not exists. Run 'grache pack build' first!"
    return
  end

  gemfile_lock = "#{gemfile}.lock"
  sha = Digest::SHA2.file(gemfile_lock).hexdigest

  archive = "grache-#{sha}.zip"
  FileUtils.rm archive, :force => true

  ZipGenerator.new(vendor_dir, archive).write

  puts "Created #{archive}"
end

Instance Method Details

#find_gemfile(path) ⇒ Object 



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# File 'lib/grache/packer/packer.rb', line 213

def find_gemfile(path)
  Packer.find_gemfile(path)
end

#get_checksum(path) ⇒ Object 



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# File 'lib/grache/packer/packer.rb', line 217

def get_checksum(path)
  Packer.get_checksum(path)
end

#install(opts = DEFAULT_INSTALL_OPTIONS) ⇒ Object 



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# File 'lib/grache/packer/packer.rb', line 221

def install(opts = DEFAULT_INSTALL_OPTIONS)
  opts = DEFAULT_PACK_OPTIONS.merge(opts)

  Packer.install(opts)
end

#pack(opts = DEFAULT_PACK_OPTIONS) ⇒ Object 



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# File 'lib/grache/packer/packer.rb', line 227

def pack(opts = DEFAULT_PACK_OPTIONS)
  opts = DEFAULT_PACK_OPTIONS.merge(opts)

  Packer.pack(opts)
end

#zip(opts = DEFAULT_ZIP_OPTIONS) ⇒ Object 



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# File 'lib/grache/packer/packer.rb', line 233

def zip(opts = DEFAULT_ZIP_OPTIONS)
  opts = DEFAULT_PACK_OPTIONS.merge(opts)

  Packer.zip(opts)
end