{"id":147,"date":"2023-08-21T18:32:59","date_gmt":"2023-08-21T16:32:59","guid":{"rendered":"https:\/\/dhouard.wordpress.com\/?p=147"},"modified":"2024-05-04T21:18:50","modified_gmt":"2024-05-04T19:18:50","slug":"ctree-en-rust","status":"publish","type":"post","link":"https:\/\/dhouard.ddns.net\/blog\/ctree-en-rust\/","title":{"rendered":"ctree en Rust"},"content":{"rendered":"\n

Hace ya mucho que empec\u00e9 en esto de la programaci\u00f3n y, en un principio, lo que m\u00e1s me gustaba era programar aplicaciones y utilidades enfocadas a productividad en la consola de MS-DOS<\/strong> que era, b\u00e1sicamente, lo que se estilaba en aquellos tiempos. Despu\u00e9s la carrera profesional me llev\u00f3 por el desarrollo web y me alej\u00e9 de ese tipo de aplicaciones.<\/p>\n\n\n\n

Hace no mucho, me encontr\u00e9 con un peque\u00f1o problema que me suele ocurrir cuando en una consola estoy situado en un directorio muy profundo en el sistema ya que mi consola suele acortar la ruta completa.<\/p>\n\n\n\n\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

La soluci\u00f3n que se me ocurri\u00f3 fue una peque\u00f1a utilidad en python<\/strong> que muestra, de manera, simplificada, un \u00e1rbol donde se indica la ruta completa del directorio actual. El ejecutar la utilidad se ve m\u00e1s o menos as\u00ed.<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

El c\u00f3digo de esta peque\u00f1o utilidad es el siguiente:<\/p>\n\n\n\n

<\/circle><\/circle><\/circle><\/g><\/svg><\/span><\/path><\/path><\/svg><\/span>
#!\/usr\/bin\/python3<\/span><\/span>\n<\/span>\nimport<\/span> os<\/span><\/span>\nimport<\/span> pathlib<\/span><\/span>\n<\/span>\ntree <\/span>=<\/span> <\/span>[]<\/span><\/span>\n<\/span>\ndef<\/span> <\/span>get_upper_dir<\/span>(<\/span>dir<\/span>):<\/span><\/span>\n    <\/span>try<\/span>:<\/span><\/span>\n        <\/span>dir<\/span> <\/span>=<\/span> pathlib<\/span>.<\/span>Path<\/span>(<\/span>dir<\/span>).<\/span>parent<\/span>.<\/span>absolute<\/span>()<\/span><\/span>\n        <\/span>if<\/span> <\/span>(<\/span>os<\/span>.<\/span>path<\/span>.<\/span>basename<\/span>(<\/span>str<\/span>(<\/span>dir<\/span>)))<\/span> <\/span>!=<\/span> <\/span>''<\/span>:<\/span><\/span>\n            tree<\/span>.<\/span>append<\/span>(<\/span>str<\/span>(<\/span>dir<\/span>))<\/span><\/span>\n            <\/span>get_upper_dir<\/span>(<\/span>dir<\/span>)<\/span><\/span>\n        <\/span>else<\/span>:<\/span><\/span>\n            tree<\/span>.<\/span>append<\/span>(<\/span>str<\/span>(<\/span>dir<\/span>))<\/span><\/span>\n    <\/span>except<\/span> <\/span>Exception<\/span> <\/span>as<\/span> error<\/span>:<\/span><\/span>\n        <\/span>pass<\/span><\/span>\n<\/span>\n    <\/span>return<\/span> tree<\/span><\/span>\n<\/span>\ndef<\/span> <\/span>draw_tree<\/span>():<\/span><\/span>\n    tree<\/span>.<\/span>reverse<\/span>()<\/span><\/span>\n    <\/span>for<\/span> index<\/span>,<\/span> <\/span>dir<\/span> <\/span>in<\/span> <\/span>enumerate<\/span>(<\/span>tree<\/span>):<\/span><\/span>\n        cad <\/span>=<\/span> <\/span>''<\/span><\/span>\n        <\/span>if<\/span> index<\/span>:<\/span><\/span>\n            cad <\/span>+=<\/span> <\/span>'<\/span>  <\/span>'<\/span> <\/span>*<\/span> <\/span>(<\/span>index <\/span>-<\/span> <\/span>1<\/span>)<\/span> <\/span>+<\/span> <\/span>'<\/span> <\/span>'<\/span> <\/span>+<\/span> <\/span>u<\/span>'<\/span>\\u2514<\/span>'<\/span> <\/span>+<\/span> <\/span>u<\/span>'<\/span>\\u2500<\/span>'<\/span> <\/span>+<\/span> os<\/span>.<\/span>path<\/span>.<\/span>basename<\/span>(<\/span>dir<\/span>)<\/span><\/span>\n        <\/span>else<\/span>:<\/span><\/span>\n            cad <\/span>=<\/span> <\/span>dir<\/span><\/span>\n        <\/span>print<\/span>(<\/span>cad<\/span>)<\/span><\/span>\n        <\/span>if<\/span> index <\/span><<\/span> <\/span>(<\/span>len<\/span>(<\/span>tree<\/span>)<\/span> <\/span>-<\/span> <\/span>1<\/span>):<\/span><\/span>\n            <\/span>print<\/span>(<\/span>'<\/span>  <\/span>'<\/span> <\/span>*<\/span> index <\/span>+<\/span> <\/span>'<\/span> <\/span>'<\/span> <\/span>+<\/span> <\/span>u<\/span>'<\/span>\\u2502<\/span>'<\/span>)<\/span><\/span>\n<\/span>\n<\/span>\n<\/span>\ndef<\/span> <\/span>app<\/span>():<\/span><\/span>\n    current_dir <\/span>=<\/span> os<\/span>.<\/span>getcwd<\/span>()<\/span><\/span>\n    tree<\/span>.<\/span>append<\/span>(<\/span>current_dir<\/span>)<\/span><\/span>\n    <\/span>get_upper_dir<\/span>(<\/span>current_dir<\/span>)<\/span><\/span>\n    <\/span>draw_tree<\/span>()<\/span><\/span>\n<\/span>\n<\/span>\n<\/span>\nif<\/span> __name__ <\/span>==<\/span> <\/span>'<\/span>__main__<\/span>'<\/span>:<\/span><\/span>\n    <\/span>app<\/span>()<\/span><\/span>\n<\/span><\/code><\/pre><\/div>\n\n\n\n
Pues bien, como llevo un tiempo trasteando con rust<\/strong>, me he decidido a portar esta utilidad a este lenguaje, quedando realmente m\u00e1s compacto. El c\u00f3digo es tal que as\u00ed:<\/p>\n\n\n\n
<\/circle><\/circle><\/circle><\/g><\/svg><\/span><\/path><\/path><\/svg><\/span>
use<\/span> std<\/span>::<\/span>env<\/span>::<\/span>current_dir<\/span>;<\/span><\/span>\n<\/span>\nfn<\/span> <\/span>main<\/span>()<\/span> <\/span>{<\/span><\/span>\n    <\/span>let<\/span> dir <\/span>=<\/span> <\/span>current_dir<\/span>().<\/span>unwrap<\/span>();<\/span><\/span>\n    <\/span>for<\/span> <\/span>(<\/span>index<\/span>,<\/span> partial<\/span>)<\/span> <\/span>in<\/span> dir<\/span>.<\/span>iter<\/span>().<\/span>enumerate<\/span>()<\/span> <\/span>{<\/span><\/span>\n        <\/span>if<\/span> index <\/span>==<\/span> <\/span>0<\/span> <\/span>{<\/span><\/span>\n            <\/span>println!<\/span>(<\/span>"{}"<\/span>,<\/span> partial<\/span>.<\/span>to_str<\/span>().<\/span>unwrap<\/span>())<\/span><\/span>\n        <\/span>}<\/span> <\/span>else<\/span> <\/span>{<\/span><\/span>\n            <\/span>println!<\/span>(<\/span>"{}<\/span>\u2502<\/span>"<\/span>,<\/span>"<\/span>  <\/span>"<\/span>.<\/span>repeat<\/span>(<\/span>index <\/span>-<\/span> <\/span>1<\/span>));<\/span><\/span>\n            <\/span>println!<\/span>(<\/span>"{}<\/span>\u2514\u2500<\/span>{}"<\/span>,<\/span> <\/span>"<\/span>  <\/span>"<\/span>.<\/span>repeat<\/span>(<\/span>index <\/span>-<\/span> <\/span>1<\/span>),<\/span>partial<\/span>.<\/span>to_str<\/span>().<\/span>unwrap<\/span>())<\/span><\/span>\n        <\/span>}<\/span><\/span>\n    <\/span>}<\/span><\/span>\n}<\/span><\/span>\n<\/span><\/code><\/pre><\/div>\n\n\n\n
Y la salida de la ejecuci\u00f3n es<\/p>\n\n\n\n
\"\"<\/a><\/figure>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Hace ya mucho que empec\u00e9 en esto de la programaci\u00f3n y, en un principio, lo que m\u00e1s me gustaba era programar aplicaciones y utilidades enfocadas a productividad en la consola de MS-DOS que era, b\u00e1sicamente, lo que se estilaba en aquellos tiempos. Despu\u00e9s la carrera profesional me llev\u00f3 por el desarrollo web y me alej\u00e9 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[20,22,23],"class_list":["post-147","post","type-post","status-publish","format-standard","hentry","category-utilidades","tag-programacion","tag-python","tag-rust"],"_links":{"self":[{"href":"https:\/\/dhouard.ddns.net\/blog\/wp-json\/wp\/v2\/posts\/147","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dhouard.ddns.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dhouard.ddns.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dhouard.ddns.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dhouard.ddns.net\/blog\/wp-json\/wp\/v2\/comments?post=147"}],"version-history":[{"count":7,"href":"https:\/\/dhouard.ddns.net\/blog\/wp-json\/wp\/v2\/posts\/147\/revisions"}],"predecessor-version":[{"id":311,"href":"https:\/\/dhouard.ddns.net\/blog\/wp-json\/wp\/v2\/posts\/147\/revisions\/311"}],"wp:attachment":[{"href":"https:\/\/dhouard.ddns.net\/blog\/wp-json\/wp\/v2\/media?parent=147"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dhouard.ddns.net\/blog\/wp-json\/wp\/v2\/categories?post=147"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dhouard.ddns.net\/blog\/wp-json\/wp\/v2\/tags?post=147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}