Class: PluginTool::Plugin

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

Constant Summary collapse

DEFAULT_PLUGIN_LOAD_PRIORITY = 
9999999
@@pending_apply = 
[]

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, options) ⇒ Plugin

Returns a new instance of Plugin.



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

def initialize(name, options)
  @name = name
  @options = options
end

Instance Attribute Details

#loaded_plugin_id ⇒ Object

Returns the value of attribute loaded_plugin_id.



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# File 'lib/plugin.rb', line 13

def loaded_plugin_id
  @loaded_plugin_id
end

#name ⇒ Object

Returns the value of attribute name.



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

def name
  @name
end

#plugin_dir ⇒ Object

Returns the value of attribute plugin_dir.



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# File 'lib/plugin.rb', line 12

def plugin_dir
  @plugin_dir
end

Class Method Details

.do_apply ⇒ Object 



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# File 'lib/plugin.rb', line 174

def self.do_apply
  return if @@pending_apply.empty?
  puts "Applying changes on server: #{@@pending_apply.map { |p| p.name } .join(', ')}"
  r = PluginTool.post_with_json_response("/api/development-plugin-loader/apply", {
    :plugins => @@pending_apply.map { |p| p.loaded_plugin_id }.join(' ')
  })
  if r["result"] == 'success'
    @@pending_apply = []
  else
    puts "\n\nDidn't apply changes on server\n\n"
    PluginTool.beep
  end
end

Instance Method Details

#command(cmd) ⇒ Object 



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# File 'lib/plugin.rb', line 69

def command(cmd)
  case cmd
  when 'license-key'
    application_id = @options.args.first
    if application_id == nil || application_id !~ /\A\d+\z/
      end_on_error "Numeric application ID must be specified"
    end
    generate_license_key(application_id)

  when 'pack'
    PluginTool.pack_plugin(@name, @options.output)

  when 'reset-db'
    puts "Resetting database on server for #{@name}..."
    reset_result = PluginTool.post_with_json_response("/api/development-plugin-loader/resetdb/#{@loaded_plugin_id}")
    end_on_error "Couldn't remove old database tables" unless reset_result["result"] == 'success'
    apply_result = PluginTool.post_with_json_response("/api/development-plugin-loader/apply", :plugins => @loaded_plugin_id)
    end_on_error "Couldn't apply changes" unless apply_result["result"] == 'success'
    puts "Done."

  when 'uninstall'
    puts "Uninstalling plugin #{@name} from server..."
    reset_result = PluginTool.post_with_json_response("/api/development-plugin-loader/uninstall/#{@loaded_plugin_id}")
    end_on_error "Couldn't uninstall plugin" unless reset_result["result"] == 'success'
    puts "Done."

  when 'test'
    puts "Running tests..."
    params = {}
    params["test"] = @options.args.first unless @options.args.empty?
    test_result = PluginTool.post_with_json_response("/api/development-plugin-loader/run-tests/#{@loaded_plugin_id}", params)
    end_on_error "Couldn't run tests" unless test_result["result"] == 'success'
    puts
    puts test_result["output"] || ''
    puts test_result["summary"] || "(unknown results)"

  when 'develop'
    # do nothing here
  
  else
    end_on_error "Unknown command '#{cmd}'"

  end
end

#develop_scan_and_upload(first_run) ⇒ Object 



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# File 'lib/plugin.rb', line 119

def develop_scan_and_upload(first_run)
  should_apply = first_run
  next_manifest = PluginTool.generate_manifest(@plugin_dir)
  if !(next_manifest.has_key?("plugin.json"))
    # If the plugin.json file is deleted, just uninstall the plugin from the server
    command('uninstall')
    @is_uninstalled = true
    return
  elsif @is_uninstalled
    should_apply = true
  end
  changes = PluginTool.determine_manifest_changes(@current_manifest, next_manifest)
  upload_failed = false
  changes.each do |filename, action|
    filename =~ /\A(.*?\/)?([^\/]+)\z/
    params = {:filename => $2}
    params[:directory] = $1.gsub(/\/\z/,'') if $1
    if action == :delete
      puts "  #{@name}: Deleting #{filename}"
      PluginTool.post_with_json_response("/api/development-plugin-loader/delete-file/#{@loaded_plugin_id}", params)
    else
      puts "  #{@name}: Uploading #{filename}"
      data = File.open("#{@plugin_dir}/#{filename}") { |f| f.read }
      hash = action
      # Minimise file before uploading?
      if @options.minimiser != nil && filename =~ /\A(static|template)\//
        size_before = data.length
        data = @options.minimiser.process(data, filename)
        size_after = data.length
        hash = Digest::SHA256.hexdigest(data)
        puts "        minimisation: #{size_before} -> #{size_after} (#{(size_after * 100) / size_before}%)"
      end
      r = PluginTool.post_with_json_response("/api/development-plugin-loader/put-file/#{@loaded_plugin_id}", params, {:file => [filename, data]})
      if r["result"] == 'success'
        # If the file was uploaded successfully, but the hash didn't match, abort now
        end_on_error "#{@name}: Disagreed with server about uploaded file hash: local=#{hash}, remote=#{r["hash"]}" unless hash == r["hash"]
      else
        # Otherwise mark as a failed upload to stop an apply operation which will fail
        upload_failed = true
      end
      PluginTool.syntax_check(self, filename) if filename =~ /\.js\z/
    end
  end
  if upload_failed
    puts "\n#{@name}: Not applying changes due to failure\n\n"
  else
    if !(changes.empty?) || should_apply
      @@pending_apply.push(self) unless @@pending_apply.include?(self)
    end
  end
  @current_manifest = next_manifest
end

#develop_setup ⇒ Object 



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

def develop_setup
end

#end_on_error(err) ⇒ Object 



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# File 'lib/plugin.rb', line 204

def end_on_error(err)
  puts err
  exit 1
end

#generate_license_key(application_id) ⇒ Object 



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# File 'lib/plugin.rb', line 190

def generate_license_key(application_id)
  info = File.open("#{@plugin_dir}/plugin.json") { |f| JSON.parse(f.read) }
  if info["installSecret"] == nil
    end_on_error "#{@name}: No installSecret specified in plugin.json"
  end
  license_key = HMAC::SHA1.sign(info["installSecret"], "application:#{application_id}")
  puts <<__E

Plugin:       #{@name}
Application:  #{application_id}
License key:  #{license_key}
__E
end

#plugin_load_priority ⇒ Object 



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# File 'lib/plugin.rb', line 32

def plugin_load_priority
  pj = File.open("#{@plugin_dir}/plugin.json") { |f| JSON.parse(f.read) }
  pj['loadPriority'] || DEFAULT_PLUGIN_LOAD_PRIORITY
end

#print_banner ⇒ Object 



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# File 'lib/plugin.rb', line 37

def print_banner
  puts "Plugin: #{@plugin_dir}"
end

#setup_for_server ⇒ Object 



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# File 'lib/plugin.rb', line 41

def setup_for_server
  # Make the first empty manifest (may be replaced from server)
  @current_manifest = {}

  # If minimisation is active, clear the current manifest so all files are uploaded again.
  if @options.minimiser != nil
    @current_manifest = {}
  end

  # See if the plugin has already been registered with the server
  s_found_info = PluginTool.post_with_json_response("/api/development-plugin-loader/find-registration", {:name => @name})
  if s_found_info["found"]
    # Store info returned by the server
    @loaded_plugin_id = s_found_info["plugin_id"]
    @current_manifest = s_found_info["manifest"]
  end

  # If there isn't an existing plugin registered, create a new one
  if @loaded_plugin_id == nil
    s_create_info = PluginTool.post_with_json_response("/api/development-plugin-loader/create")
    end_on_error "Couldn't communicate successfully with server." if s_create_info["protocol_error"]
    end_on_error "Failed to create plugin on server" unless s_create_info["plugin_id"] != nil
    @loaded_plugin_id = s_create_info["plugin_id"]
  end
end

#start ⇒ Object 



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# File 'lib/plugin.rb', line 21

def start
  # Check to see if the plugin is valid
  unless File.file?("#{@name}/plugin.json")
    end_on_error "Plugin #{@name} does not exist (no plugin.json file)"
  end
  # Setup for using the plugin
  @plugin_dir = @name
  end_on_error "logic error" unless @plugin_dir =~ /\A[a-zA-Z0-9_-]+\z/
  @loaded_plugin_id = nil
end