Class: Bike::Storage::File

Inherits:
Bike::Storage show all
Defined in:
lib/_storage/file.rb

Instance Attribute Summary

Attributes inherited from Bike::Storage

#sd

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Bike::Storage

instance, #last, #navi, #order, #persistent?, #select

Constructor Details

#initialize(sd) ⇒ File

Returns a new instance of File.



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# File 'lib/_storage/file.rb', line 60

def initialize(sd)
  super
  unless @@loaded ||= false
    entries = ::Dir.glob ::File.join(Bike['storage']['File']['data_dir'], '*')
    self.class.load_skel if entries.empty?
    @@loaded = true
  end
  @dir = ::File.join(Bike['storage']['File']['data_dir'], @sd[:folder][:dir])
  ::FileUtils.mkpath(@dir) unless ::File.directory? @dir
end

Class Method Details

.available? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/_storage/file.rb', line 56

def self.available?
  Bike['storage']['File'] && Bike['storage']['File']['data_dir']
end

.load_skel ⇒ Object 



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# File 'lib/_storage/file.rb', line 42

def self.load_skel
  self.traverse('/', Bike['skin_dir']) {|entry|
    dir = ::File.join(Bike['storage']['File']['data_dir'], entry[:dir])
    unless ::File.exists? ::File.join(dir, entry[:base_name])
      ::FileUtils.mkpath(dir) unless ::File.directory? dir
      ::FileUtils.cp(
        ::File.join(Bike['skin_dir'], entry[:dir], entry[:base_name]),
        ::File.join(dir, entry[:base_name]),
        {:preserve => true}
      )
    end
  }
end

.traverse(dir = '/', root = Bike['storage']['File']['data_dir'], &block) ⇒ Object 



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# File 'lib/_storage/file.rb', line 13

def self.traverse(dir = '/', root = Bike['storage']['File']['data_dir'], &block)
  ::Dir.glob(::File.join(root, dir, '*')).sort.collect {|file|
    ftype     = ::File.ftype file
    base_name = ::File.basename file
    id, ext    = base_name.split('.', 2)
    id = "main-#{id}" if id =~ Bike::REX::ID
    full_name = ::File.join(dir, id).gsub(::File::SEPARATOR, '-')

    if ftype == 'file' && id.sub(/^([^\d\-]+-)+/, '') =~ Bike::REX::ID
      val = nil
      ::File.open(file, 'r') {|f|
        f.flock ::File::LOCK_SH
        f.binmode
        val = f.read
        f.flock ::File::LOCK_UN
      }
      block.call(
        :dir       => dir,
        :base_name => base_name,
        :full_name => full_name,
        :ext       => ext,
        :val       => (ext == 'yaml' ? YAML.load(val) : val)
      )
    elsif ftype == 'directory' && base_name !~ /\A#{Bike::REX::DIR_STATIC}\z/
      self.traverse(::File.join(dir, base_name), root, &block)
    end
  }.compact.flatten
end

Instance Method Details

#build(v) ⇒ Object 



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# File 'lib/_storage/file.rb', line 83

def build(v)
  clear
  v.each {|id, v| store(id, v) }
  self
end

#clear ⇒ Object 



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# File 'lib/_storage/file.rb', line 89

def clear
  glob.each {|file| ::File.unlink ::File.join(@dir, file) }
  self
end

#delete(id) ⇒ Object 



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# File 'lib/_storage/file.rb', line 98

def delete(id)
  remove_file(id) && id
end

#move(old_id, new_id) ⇒ Object 



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# File 'lib/_storage/file.rb', line 102

def move(old_id, new_id)
  rename_file(old_id, new_id) && new_id
end

#store(id, v, ext = nil) ⇒ Object 



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# File 'lib/_storage/file.rb', line 94

def store(id, v, ext = nil)
  save(id, v, ext)
end

#val(id = nil) ⇒ Object 



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# File 'lib/_storage/file.rb', line 71

def val(id = nil)
  if id
    load id
  else
    # this could be HUGE.
    _select_all({}).inject({}) {|v, id|
      v[id] = load id
      v
    }
  end
end