cambiar el archivo y metadatos

lib/sutty/models/post.rb

@@ -1,39 +1,84 @@
 # frozen_string_literal: true
 
 require 'yaml'
+require 'jekyll/utils'
 
 module Sutty
   module Models
     # Un post
     class Post
       attr_accessor :content, :front_matter
-      attr_reader :post, :site
+      attr_reader :post, :site, :errors
 
       REJECT_FROM_DATA = %w[excerpt slug draft date ext].freeze
 
-      def initialize(site, post = nil)
+      def initialize(site, post = nil, front_matter = {})
         @site = site
         @post = post
+        @errors = []
+        @front_matter = front_matter
+
+        load_data!
       end
 
       def new?
-        !@post.is_a? Jekyll::Document
+        !@post.is_a? ::Jekyll::Document
       end
 
+      # Guarda los cambios
       def save
-        front_matter_from_data!
+        merge_data_with_front_matter!
         clean_content!
 
-        return unless write.zero?
+        return unless write
+        return unless detect_file_rename!
 
+        # Vuelve a leer el post para tomar los cambios
         @post.read
         true
       end
 
       private
 
-      def front_matter_from_data!
+      # Cambiar el nombre del archivo si cambió el título o la fecha.
-        @front_matter ||= @post.data.reject do |key, _|
+      # Como Jekyll no tiene métodos para modificar un Document, lo
+      # engañamos eliminando la instancia de @post y recargando otra.
+      def detect_file_rename!
+        basename = basename_from_front_matter
+        path = File.join(File.dirname(@post.path), basename)
+
+        return true if basename == @post.basename
+
+        if File.exist? path
+          @errors << 'El archivo destino ya existe'
+          return
+        end
+
+        FileUtils.mv @post.path, path
+        replace_post! path
+      end
+
+      def replace_post!(path)
+        opts = { site: @site, collection: @site.posts }
+        @site.posts.docs.delete @post
+        @post = ::Jekyll::Document.new(path, opts)
+        @site.posts.docs << @post
+        @site.posts.docs.sort!
+      end
+
+      def basename_from_front_matter
+        date  = @front_matter[:date].strftime('%F')
+        title = ::Jekyll::Utils.slugify(@front_matter[:title])
+
+        "#{date}-#{title}.markdown"
+      end
+
+      def merge_data_with_front_matter!
+        @data.merge! Hash[@front_matter.map { |k, v| [k.to_s, v] }]
+      end
+
+      def load_data!
+        @data ||= @post.data.reject do |key, _|
           REJECT_FROM_DATA.include? key
         end
       end
@@ -43,8 +88,9 @@ module Sutty
         @content = @content.delete("\r")
       end
 
+      # Guarda los cambios en el archivo destino
       def write
-        File.open(@post.path, File::RDWR | File::CREAT, 0o640) do |f|
+        r = File.open(@post.path, File::RDWR | File::CREAT, 0o640) do |f|
           # Bloquear el archivo para que no sea accedido por otro
           # proceso u otra editora
           f.flock(File::LOCK_EX)
@@ -59,10 +105,15 @@ module Sutty
           f.flush
           f.truncate(f.pos)
         end
+
+        return true if r.zero?
+
+        @errors << 'No se pudo escribir el archivo'
+        false
       end
 
       def full_content
-        "#{@front_matter.to_yaml}---\n\n#{@content}"
+        "#{@data.to_yaml}---\n\n#{@content}"
       end
     end
   end

lib/sutty/post.rb

@@ -47,12 +47,19 @@ module Sutty
         end
 
         post do
-          post = Sutty::Models::Post.new(@site, @post)
+          front_matter = {
+            tags: params[:post][:tags].split(',').map(&:strip),
+            categories: params[:post][:categories].split(',').map(&:strip),
+            title: params[:post][:title],
+            date: Time.new(params[:post][:date])
+          }
+
+          post = Sutty::Models::Post.new(@site, @post, front_matter)
           post.content = params[:post][:content]
 
           if post.save
             flash[:success] = 'Artículo guardado con éxito'
-            redirect to("/sites/#{@site.name}/posts/#{@post.basename}")
+            redirect to("/sites/#{@site.name}/posts/#{post.post.basename}")
           else
             flash[:error] = 'Hubo un error al guardar el artículo'
             redirect back

public/stylesheets/sass/sutty.scss

@@ -29,3 +29,8 @@ body {
   line-height: $footer-height;
   text-align: center;
 }
+
+textarea.post-content {
+  min-height: 80vh;
+  font-family: monospace;
+}

public/stylesheets/sutty.css

@@ -1,2 +1,2 @@
-.background-cover{background:url(/assets/img/background.jpg) no-repeat center center fixed;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover}.full-height{height:calc(100vh - 60px)}html{position:relative;min-height:100%}body{margin-bottom:60px}.footer{position:absolute;bottom:0;width:100%;height:60px;line-height:60px;text-align:center}
+.background-cover{background:url(/assets/img/background.jpg) no-repeat center center fixed;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover}.full-height{height:calc(100vh - 60px)}html{position:relative;min-height:100%}body{margin-bottom:60px}.footer{position:absolute;bottom:0;width:100%;height:60px;line-height:60px;text-align:center}textarea.post-content{min-height:80vh;font-family:monospace}
 /*# sourceMappingURL=sutty.css.map */

public/stylesheets/sutty.css.map

@@ -1,6 +1,6 @@
 {
 "version": 3,
-"mappings": "AAEA,iBAAkB,CAChB,UAAU,CAAE,6DAA6D,CACzE,uBAAuB,CAAE,KAAK,CAC9B,oBAAoB,CAAE,KAAK,CAC3B,kBAAkB,CAAE,KAAK,CACzB,eAAe,CAAE,KAAK,CAGxB,YAAa,CACX,MAAM,CAAE,kBAA+B,CAGzC,IAAK,CACH,QAAQ,CAAE,QAAQ,CAClB,UAAU,CAAE,IAAI,CAGlB,IAAK,CACH,aAAa,CApBC,IAAI,CAuBpB,OAAQ,CACN,QAAQ,CAAE,QAAQ,CAClB,MAAM,CAAE,CAAC,CACT,KAAK,CAAE,IAAI,CACX,MAAM,CA3BQ,IAAI,CA4BlB,WAAW,CA5BG,IAAI,CA6BlB,UAAU,CAAE,MAAM",
+"mappings": "AAEA,iBAAkB,CAChB,UAAU,CAAE,6DAA6D,CACzE,uBAAuB,CAAE,KAAK,CAC9B,oBAAoB,CAAE,KAAK,CAC3B,kBAAkB,CAAE,KAAK,CACzB,eAAe,CAAE,KAAK,CAGxB,YAAa,CACX,MAAM,CAAE,kBAA+B,CAGzC,IAAK,CACH,QAAQ,CAAE,QAAQ,CAClB,UAAU,CAAE,IAAI,CAGlB,IAAK,CACH,aAAa,CApBC,IAAI,CAuBpB,OAAQ,CACN,QAAQ,CAAE,QAAQ,CAClB,MAAM,CAAE,CAAC,CACT,KAAK,CAAE,IAAI,CACX,MAAM,CA3BQ,IAAI,CA4BlB,WAAW,CA5BG,IAAI,CA6BlB,UAAU,CAAE,MAAM,CAGpB,qBAAsB,CACpB,UAAU,CAAE,IAAI,CAChB,WAAW,CAAE,SAAS",
 "sources": ["sass/sutty.scss"],
 "names": [],
 "file": "sutty.css"

views/posts/_form.haml

@@ -2,5 +2,19 @@
   .form-group
     %button.btn.btn-success{type: 'submit'} Guardar
   .form-group
-    %textarea.form-control{name: 'post[content]', id: 'contents', autofocus: true}
+    %textarea.form-control.post-content{name: 'post[content]', id: 'contents', autofocus: true}
       = @post.content
+  .form-group
+    %label{for: 'date'} Fecha de publicación
+    %input.form-control{type: 'text', name: 'post[date]', id: 'date', value: @post.data['date']}
+  .form-group
+    %label{for: 'title'} Título
+    %input.form-control{type: 'text', name: 'post[title]', id: 'title', value: @post.data['title']}
+  .form-group
+    %label{for: 'tags'} Etiquetas
+    %input.form-control{type: 'text', name: 'post[tags]', id: 'tags', value: @post.data['tags'].join(',')}
+    %small.form-text.text-muted Separadas por comas
+  .form-group
+    %label{for: 'categories'} Categorías
+    %input.form-control{type: 'text', name: 'post[categories]', id: 'categories', value: @post.data['categories'].join(',')}
+    %small.form-text.text-muted Separadas por comas