Class: Cloudinary::Static

Inherits:
Object show all
Defined in:
lib/cloudinary/static.rb

Constant Summary collapse

IGNORE_FILES = 
[".svn", "CVS", "RCS", ".git", ".hg"]
SUPPORTED_IMAGES = 
[/\.(gif|jpe?g|png|bmp|ico|webp|wdp|jxr|jp2|svg|pdf)$/i]
STATIC_IMAGE_DIRS = 
["app/assets/images", "lib/assets/images", "vendor/assets/images", "public/images"]
METADATA_FILE = 
".cloudinary.static"
METADATA_TRASH_FILE = 
".cloudinary.static.trash"

Class Method Summary collapse

Class Method Details

.discover ⇒ Object 



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# File 'lib/cloudinary/static.rb', line 11

def self.discover
  ignore_files = Cloudinary.config.ignore_files || IGNORE_FILES 
  relative_dirs = Cloudinary.config.static_image_dirs || STATIC_IMAGE_DIRS
  dirs = relative_dirs.map{|dir| self.root.join(dir)}.select(&:exist?)
  dirs.each do
    |dir|
    dir.find do
      |path|
      file = path.basename.to_s
      if ignore_files.any?{|pattern| pattern.is_a?(String) ? pattern == file : file.match(pattern)}
        Find.prune
        next
      elsif path.directory?
        next
      elsif SUPPORTED_IMAGES.none?{|pattern| pattern.is_a?(String) ? pattern == file : file.match(pattern)}
        next          
      else
        relative_path = path.relative_path_from(self.root)
        public_path = path.relative_path_from(dir.dirname)
        yield(relative_path, public_path)
      end
    end
  end
end

.metadata(metadata_file = metadata_file_path, hash = true) ⇒ Object 



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# File 'lib/cloudinary/static.rb', line 48

def self.metadata(metadata_file = metadata_file_path, hash=true) 
  metadata = []
  if File.exist?(metadata_file)
    IO.foreach(metadata_file) do
      |line|
      line.strip!
      next if line.blank?
      path, public_id, upload_time, version, width, height = line.split("\t")
      metadata << [path, {
        "public_id" => public_id, 
        "upload_time" => Time.at(upload_time.to_i).getutc, 
        "version" => version,
        "width" => width.to_i,
        "height" => height.to_i
      }]
    end
  end
  hash ? Hash[*metadata.flatten] : metadata
end

.metadata_file_path ⇒ Object 



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# File 'lib/cloudinary/static.rb', line 40

def self.metadata_file_path
  self.root.join(METADATA_FILE)
end

.metadata_trash_file_path ⇒ Object 



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# File 'lib/cloudinary/static.rb', line 44

def self.metadata_trash_file_path
  self.root.join(METADATA_TRASH_FILE)
end

.root ⇒ Object 



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# File 'lib/cloudinary/static.rb', line 36

def self.root
  Cloudinary.app_root
end

.sync(options = {}) ⇒ Object 



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# File 'lib/cloudinary/static.rb', line 68

def self.sync(options={})
  options = options.clone
  delete_missing = options.delete(:delete_missing)
  metadata = self.metadata
  found_paths = Set.new
  found_public_ids = Set.new
  metadata_lines = []
  counts = { :not_changed => 0, :uploaded => 0, :deleted => 0, :not_found => 0}
  self.discover do
    |path, public_path|
    next if found_paths.include?(path)
    found_paths << path
    data = self.root.join(path).read(:mode=>"rb")
    ext = path.extname
    format = ext[1..-1]
    md5 = Digest::MD5.hexdigest(data)
    public_id = "#{public_path.basename(ext)}-#{md5}"
    found_public_ids << public_id
    current_metadata = metadata.delete(public_path.to_s)      
    if current_metadata && current_metadata["public_id"] == public_id # Signature match
      counts[:not_changed] += 1
      $stderr.print "#{public_path} - #{public_id} - Not changed\n"
      result = current_metadata
    else
      counts[:uploaded] += 1
      $stderr.print "#{public_path} - #{public_id} - Uploading\n"
      result = Cloudinary::Uploader.upload(Cloudinary::Blob.new(data, :original_filename=>path.to_s),
        options.merge(:format=>format, :public_id=>public_id, :type=>:asset)
      ).merge("upload_time"=>Time.now)        
    end
    metadata_lines << [public_path, public_id, result["upload_time"].to_i, result["version"], result["width"], result["height"]].join("\t")+"\n"
  end
  File.open(self.metadata_file_path, "w"){|f| f.print(metadata_lines.join)}
  metadata.to_a.each do |path, info|
    counts[:not_found] += 1
    $stderr.print "#{path} - #{info["public_id"]} - Not found\n"      
  end
  # Files no longer needed 
  trash = metadata.to_a + self.metadata(metadata_trash_file_path, false).reject{|public_path, info| found_public_ids.include?(info["public_id"])} 
  
  if delete_missing
    trash.each do
      |path, info|
      counts[:deleted] += 1
      $stderr.print "#{path} - #{info["public_id"]} - Deleting\n"
      Cloudinary::Uploader.destroy(info["public_id"], options.merge(:type=>:asset))
    end
    FileUtils.rm_f(self.metadata_trash_file_path)
  else
    # Add current removed file to the trash file.
    metadata_lines = trash.map do
      |public_path, info|
      [public_path, info["public_id"], info["upload_time"].to_i, info["version"], info["width"], info["height"]].join("\t")+"\n"
    end
    File.open(self.metadata_trash_file_path, "w"){|f| f.print(metadata_lines.join)}    
  end
  
  $stderr.print "\nCompleted syncing static resources to Cloudinary\n"
  $stderr.print counts.sort.reject{|k,v| v == 0}.map{|k,v| "#{v} #{k.to_s.gsub('_', ' ').capitalize}"}.join(", ") + "\n"
end