{"id":25603,"date":"2016-11-09T11:04:01","date_gmt":"2016-11-09T11:04:01","guid":{"rendered":"https:\/\/dev.railscarma.com\/code-refactoring-gem-flay\/"},"modified":"2021-05-27T06:17:39","modified_gmt":"2021-05-27T06:17:39","slug":"refactorizacion-de-codigo-gem-flay","status":"publish","type":"post","link":"https:\/\/www.railscarma.com\/es\/blog\/articulos-tecnicos\/refactorizacion-de-codigo-gem-flay\/","title":{"rendered":"Gema de refactorizaci\u00f3n de c\u00f3digo - Flay"},"content":{"rendered":"<p align=\"justify\">Mantener un c\u00f3digo elegante y sin clones de c\u00f3digo mientras se construye una gran aplicaci\u00f3n Rails puede ser una prueba importante, incluso para un desarrollador consumado. Afortunadamente, existe una gema que simplifica la refactorizaci\u00f3n del c\u00f3digo. Para mucha gente, el c\u00f3digo muerto\/desperdiciado se desarrollar\u00e1 despu\u00e9s de alg\u00fan tiempo. Otros se encontrar\u00e1n en una situaci\u00f3n de este tipo cuando se hacen cargo de proyectos heredados. En la remota posibilidad de que usted necesita para mantener su c\u00f3digo mantenible y optimizado, echa un vistazo a una gema que han estado haciendo el trabajo para m\u00ed.<\/p>\n<p align=\"justify\">Flay examina el c\u00f3digo en busca de similitudes estructurales. Las diferencias en valores literales, variables, clases, nombres de m\u00e9todos, espacios en blanco, estilo de programaci\u00f3n, llaves frente a do\/end, props frente a do\/end, etc. son todas pasadas por alto, lo que lo hace absolutamente genial. Es apto para reconocer tanto las coincidencias correctas como las aproximadas, y descubre con certeza algunos puntos en Active Record donde se repiten los patrones. En su estado actual, la salida de Flay es muy primitiva: una lista de nodos de c\u00f3digo repetidos, junto con un peso para clasificarlos y los n\u00fameros de l\u00ednea y nombres de archivo donde aparece el c\u00f3digo repetido. El c\u00f3digo que Flay reporta como comparativo es una herramienta de posibilidad decente para la refactorizaci\u00f3n.<\/p>\n<p><strong>Comando de instalaci\u00f3n<\/strong><\/p>\n<pre><code>sudo gem install flay<\/code><\/pre>\n<p><strong>Comando para ver la salida<\/strong><\/p>\n<pre><code>Cd \"Ruta a la carpeta del proyecto\"<\/code><\/pre>\n<pre><code>flay \"ruta de la carpeta\"<\/code><\/pre>\n<pre><code>Ej : flay .\/app\/controllers - Identifica la duplicaci\u00f3n de c\u00f3digo en todos los controladores.<\/code><\/pre>\n<pre><code>flay .\/app - Identifica la duplicaci\u00f3n de c\u00f3digo en todo el proyecto<\/code><\/pre>\n<pre><code>flay .\/app\/controllers\/example_controler.rb - Identifica la duplicaci\u00f3n de c\u00f3digo en el controlador especificado.<\/code><\/pre>\n<p><strong>Ejemplo de salida<\/strong><br \/>\nSe genera una salida de las \u00e1reas de c\u00f3digo duplicado como esta:<\/p>\n<pre><code>sridevi@carmatec-MS-7788$ flay .\/app\/models\/*.rb\nPuntuaci\u00f3n total (cuanto m\u00e1s baja, mejor) = 1666\n\n1) C\u00f3digo similar encontrado en :call (masa = 170)\n.\/app\/models\/ejemplo.rb:8\n.\/app\/models\/ejemplo.rb:9\n.\/app\/models\/ejemplo.rb:10\n.\/app\/modelos\/ejemplo.rb:11\n.\/app\/modelos\/ejemplo.rb:15\n.\/app\/modelos\/ejemplo.rb:17\n.\/app\/modelos\/ejemplo.rb:19\n.\/app\/modelos\/ejemplo.rb:20\n.\/app\/modelos\/ejemplo.rb:22\n.\/app\/modelos\/ejemplo.rb:23\n\n2) C\u00f3digo similar encontrado en :defs (masa = 154)\n.\/app\/models\/ejemplo.rb:260\n.\/app\/models\/result.rb:195\n\n3) C\u00f3digo similar encontrado en :defs (masa = 138)\n.\/app\/models\/feedback.rb:62\n.\/app\/models\/ejemplo.rb:54\n.\/app\/models\/result.rb:51\n\n4) C\u00f3digo similar encontrado en :call (masa = 136)\n.\/app\/models\/ejemplo.rb:12\n.\/app\/models\/ejemplo.rb:13\n.\/app\/models\/ejemplo.rb:14\n.\/app\/modelos\/ejemplo.rb:16\n.\/app\/modelos\/ejemplo.rb:18\n.\/app\/modelos\/ejemplo.rb:21\n.\/app\/modelos\/ejemplo.rb:24\n.\/app\/modelos\/ejemplo.rb:25\n\n5) C\u00f3digo ID\u00c9NTICO encontrado en :defn (masa*2 = 128)\n.\/app\/models\/result.rb:7\n.\/app\/models\/informe_resumen.rb:7\n\n6) C\u00f3digo ID\u00c9NTICO encontrado en :defn (masa*2 = 120)\n.\/app\/models\/ejemplo.rb:17\n.\/app\/models\/ejemplo.rb:23<\/code><\/pre>\n<p align=\"justify\">La puntuaci\u00f3n total de la aplicaci\u00f3n de 1666 (el consejo de \"cuanto m\u00e1s bajo, mejor\" es v\u00e1lido) se puede ver en sus componentes individuales, mostrando las \u00e1reas que proporcionan la mayor rentabilidad. Para los desarrolladores experimentados que trabajan por su cuenta o en un equipo peque\u00f1o, Flay puede ser innecesario. Sin embargo, en proyectos de mayor envergadura (como el m\u00edo) o con programadores principiantes o intermedios, puede ayudar a mejorar la capacidad de mantenimiento del c\u00f3digo base.<\/p>\n<p align=\"justify\">A continuaci\u00f3n se muestra la representaci\u00f3n pict\u00f3rica de c\u00f3mo refactorizar el c\u00f3digo en la aplicaci\u00f3n rails. 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