Adding RSS integration (#5)

* Adding RSS integration

* where is the date

* action jackson

* action jackson

Author: carlwiedemann

.github/workflows/main.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         ruby:
-          - '3.2.0'
+          - '3.4.0'
     steps:
     - uses: actions/checkout@v3
     - name: Set up Ruby

CHANGELOG.md

@@ -5,72 +5,76 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-* `Added` for new features.
-* `Changed` for changes in existing functionality.
-* `Deprecated` for soon-to-be removed features.
-* `Removed` for now removed features.
-* `Fixed` for any bug fixes.
+- `Added` for new features.
+- `Changed` for changes in existing functionality.
+- `Deprecated` for soon-to-be removed features.
+- `Removed` for now removed features.
+- `Fixed` for any bug fixes.
+ 
+## [1.4.0] - 2025-08-23
 
-## [Unreleased]
+### Added
+
+- RSS
 
 ## [1.3.0] - 2024-01-05
 
 ### Added
 
-[#3](https://github.com/carlwiedemann/foresite/pull/3) version & watch commands (not sure how to test these best right now).
+- version & watch commands (not sure how to test these best right now).
 
 ## [1.2.0] - 2023-02-11
 
 ### Added
 
-[#2](https://github.com/carlwiedemann/foresite/pull/2) Dynamic `<title>` tag based on post title
+- Dynamic `<title>` tag based on post title
 
 ### Fixed
 
-* Typo in README.
-* Link to blog post in README.
+- Typo in README.
+- Link to blog post in README.
 
 ## [1.1.3] - 2023-01-16
 
 ### Fixed
 
-* Use the top-level directory for the index.html file because you can't set subdirectories for github pages.
+- Use the top-level directory for the index.html file because you can't set subdirectories for github pages.
 
 ## [1.1.2] - 2023-01-16
 
 ### Fixed
 
-* DRYing things up. 
+- DRYing things up. 
 
 ## [1.1.1] - 2023-01-15
 
 ### Fixed
 
-* Small typo in gemspec.
+- Small typo in gemspec.
 
 ## [1.1.0] - 2023-01-15
 
 ### Added
 
-* Can use templates for both post markdown and links list on index page.
+- Can use templates for both post markdown and links list on index page.
 
 ### Fixed
 
-* Reverse chronological order for posts on index page.
-* Fleshed-out README and fixed typos.
+- Reverse chronological order for posts on index page.
+- Fleshed-out README and fixed typos.
 
 ## [1.0.1] - 2023-01-15
 
 ### Changed
 
-* Fleshed-out README and CHANGELOG files from default boilerplate.
+- Fleshed-out README and CHANGELOG files from default boilerplate.
 
 ### Fixed
 
-* Bug with trailing non-alphanumeric characters in post titles.
+- Bug with trailing non-alphanumeric characters in post titles.
 
 ## [1.0.0] - 2023-01-14
 
 ### Added
 
-* Initial stable release, a global executable that provides the ability to generate HTML from markdown.
+- Initial stable release, a global executable that provides the ability to generate HTML from markdown.

README.md

@@ -41,6 +41,7 @@ Create a project directory for your site and run `foresite init` from within it:
     Created erb/post.md.erb
     Created erb/wrapper.html.erb
     Created erb/_list.html.erb
+    Created erb/feed.xml.erb
 
 Three subdirectories are created, along with three [ERB](https://docs.ruby-lang.org/en/3.2/ERB.html) template files.
 
@@ -52,6 +53,7 @@ Some facts:
   * `post.md.erb` is the default markdown file for every post.
   * `wrapper.html.erb` is a HTML wrapper template for every generated HTML file.
   * `_list.html.erb` is a HTML template partial for the list of posts on the `index.html` page.
+  * `feed.xml.erb` is a XML template for an RSS feed.
 
 ### 2. Write your first post
 
@@ -69,8 +71,8 @@ A single markdown file is created in the `md` subdirectory. **This file is meant
 
 Some facts:
 
-* The title is the first line formatted as H1 (mandatory).
-* Current date in YYYY-MM-DD format is the first markdown paragraph (optional).
+* The title is the first line formatted as H1.
+* Current date in YYYY-MM-DD format is the first markdown paragraph.
 * Current date and title are "slugified" for filename.
 
 ### 3. Modify templates as desired
@@ -81,23 +83,27 @@ Some facts:
 
 `_list.html.erb` is used to generate the `<ul>` list of posts on the `index.html` file. Modify to show posts in a different way.
 
+`feed.xml.erb` is an RSS feed, it will require a `title` as well as a `base_url` for where you host your site.
+
 ### 4. Generate HTML from markdown
 
 Run `foresite build` to create HTML in the `post` subdirectory and the `index.html` file:
 
     $ foresite build
     Created post/2023-01-15-welcome-to-my-site.html
     Created index.html
+    Created feed.xml
 
-In this example, two HTML files are created.
+In this example, two HTML files and an XML file are created.
 
 Some facts:
 
 * For every post markdown file in the `md` subdirectory an equivalent HTML file is generated in the `post` subdirectory, each wrapped with wrapper template markup.
 * A single `index.html` file shows a list of links to all posts in reverse-chronological order, prefixed with post date.
   * Post titles are parsed from the first H1 tag in each post markdown file.
   * Post dates are parsed from the post markdown filename.
-* Re-running `foresite build` removes and recreates all HTML files in the `post` subdirectory as well as the `index.html` file.
+* The `feed.xml` file reflects the list posts in RSS 2.0 format.
+* Re-running `foresite build` removes and recreates all HTML files in the `post` subdirectory as well as the `index.html` file and `feed.xml` file.
 
 In this example, the `index.html` will contain:
 

foresite.gemspec

@@ -11,7 +11,7 @@ Gem::Specification.new do |spec|
   spec.summary = "An extremely minimal static site generator."
   spec.homepage = "https://github.com/carlwiedemann/foresite"
   spec.license = "MIT"
-  spec.required_ruby_version = ">= 2.7.0"
+  spec.required_ruby_version = ">= 3.3.0"
 
   spec.metadata["homepage_uri"] = spec.homepage
   spec.metadata["source_code_uri"] = spec.homepage
@@ -28,19 +28,20 @@ Gem::Specification.new do |spec|
     "lib/foresite/version.rb",
     "lib/skeleton/_list.html.erb",
     "lib/skeleton/post.md.erb",
-    "lib/skeleton/wrapper.html.erb"
+    "lib/skeleton/wrapper.html.erb",
+    "lib/skeleton/feed.xml.erb"
   ]
 
   spec.bindir = "bin"
   spec.executables = spec.files.grep(%r{\Abin/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "kramdown", "~> 2.4"
-  spec.add_dependency "thor", "~> 1.2"
-  spec.add_dependency "zeitwerk", "~> 2.6"
+  spec.add_dependency "kramdown", "~> 2.5"
+  spec.add_dependency "thor", "~> 1.4"
+  spec.add_dependency "zeitwerk", "~> 2.7"
   spec.add_dependency "filewatcher", "~> 2.1"
 
-  spec.add_development_dependency "rspec", "~> 3.2"
-  spec.add_development_dependency "standard", "~> 1.3"
+  spec.add_development_dependency "rspec", "~> 3.13"
+  spec.add_development_dependency "standard", "~> 1.50"
   spec.add_development_dependency "rake", "~> 13"
 end

lib/foresite.rb

@@ -17,6 +17,7 @@ module Foresite
   FILENAME_POST_MD = "post.md.erb"
   FILENAME_WRAPPER_HTML = "wrapper.html.erb"
   FILENAME_LIST_HTML = "_list.html.erb"
+  FILENAME_FEED_XML = "feed.xml.erb"
 
   ENV_ROOT = "FORESITE_ROOT"
 
@@ -68,6 +69,10 @@ def self.get_path_to_index_file
     File.join(get_path_to_root, "index.html")
   end
 
+  def self.get_path_to_feed_file
+    File.join(get_path_to_root, "feed.xml")
+  end
+
   def self.relative_path(full_path)
     full_path.gsub(get_path_to_root, "").gsub(Regexp.new("^#{File::SEPARATOR}"), "")
   end
@@ -98,6 +103,13 @@ def self.render_wrapped_index(links)
     })
   end
 
+  def self.render_feed(items, date_build_822)
+    render_erb_file(FILENAME_FEED_XML, {
+      items: items.reverse,
+      date_build_822: date_build_822
+    })
+  end
+
   def self.touch_directories
     [get_path_to_md, get_path_to_out, get_path_to_erb].map do |path|
       if Dir.exist?(path)
@@ -110,7 +122,7 @@ def self.touch_directories
   end
 
   def self.copy_templates
-    [FILENAME_POST_MD, FILENAME_WRAPPER_HTML, FILENAME_LIST_HTML].map do |filename|
+    [FILENAME_POST_MD, FILENAME_WRAPPER_HTML, FILENAME_LIST_HTML, FILENAME_FEED_XML].map do |filename|
       full_file_path = File.join(get_path_to_erb, filename)
       if File.exist?(full_file_path)
         "#{relative_path(full_file_path)} already exists"

lib/foresite/cli.rb

@@ -1,3 +1,5 @@
+require "date"
+
 module Foresite
   ##
   # Cli class.
@@ -88,6 +90,7 @@ def build
       # Wipe all output files.
       Dir.glob(File.join(Foresite.get_path_to_out, "*.html")).each { File.delete(_1) }
       File.delete(Foresite.get_path_to_index_file) if File.exist?(Foresite.get_path_to_index_file)
+      File.delete(Foresite.get_path_to_feed_file) if File.exist?(Foresite.get_path_to_feed_file)
 
       markdown_paths = Dir.glob(File.join(Foresite.get_path_to_md, "*.md"))
 
@@ -106,11 +109,14 @@ def build
         File.write(html_path, Foresite.render_wrapped(title, markdown_content))
         $stdout.puts("Created #{Foresite.relative_path(html_path)}")
 
-        # Extract date if it exists.
+        # Extract date.
         match_data = /\d{4}-\d{2}-\d{2}/.match(filename_markdown)
+        date_ymd = match_data[0]
+        date_822 = DateTime.strptime(date_ymd, "%F").strftime("%a, %d %b %Y %H:%M:%S %z")
 
         {
-          date_ymd: match_data.nil? ? "" : match_data[0],
+          date_ymd: date_ymd,
+          date_822: date_822,
           href: Foresite.relative_path(html_path),
           title: title
         }
@@ -119,8 +125,11 @@ def build
       # Generate index file.
       index_html_path = Foresite.get_path_to_index_file
       File.write(index_html_path, Foresite.render_wrapped_index(links))
-
       $stdout.puts("Created #{Foresite.relative_path(index_html_path)}")
+
+      feed_xml_path = Foresite.get_path_to_feed_file
+      File.write(feed_xml_path, Foresite.render_feed(links, links.last[:date_822]))
+      $stdout.puts("Created #{Foresite.relative_path(feed_xml_path)}")
     end
 
     desc "watch", "Watches markdown and templates files and runs `build` when they change"

lib/foresite/renderer.rb

@@ -12,6 +12,7 @@ class Renderer
     # @param [Hash] vars Variables for template.
     def initialize(path, vars)
       @path = path
+      @vars_original = @vars
       vars.each do |k, v|
         if k.is_a?(Symbol)
           instance_variable_set(:"@#{k}", v)

lib/foresite/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Foresite
-  VERSION = "1.3.0"
+  VERSION = "1.4.0"
 end

lib/skeleton/feed.xml.erb

@@ -0,0 +1,23 @@
+<%
+  title = 'Another Foresite Blog'
+  base_url = 'https://example.com'
+-%>
+<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0">
+  <channel>
+    <title><%= title %></title>
+    <link><%= base_url %>/feed.xml</link>
+    <language>en-us</language>
+    <pubDate><%= @date_build_822 %></pubDate>
+    <lastBuildDate><%= @date_build_822 %></lastBuildDate>
+    <generator>Foresite</generator>
+    <atom:link href="<%= base_url %>/feed.xml" rel="self" type="application/rss+xml"/>
+    <% @items.each do |item| -%>
+<item>
+  <title><%= item[:title] %></title>
+  <link><%= "#{base_url}/#{item[:href]}" %></link>
+  <guid><%= "#{base_url}/#{item[:href]}" %></guid>
+  <pubDate><%= item[:date_822] %></pubDate>
+</item>
+    <%- end %>
+  </channel>
+</rss>

lib/skeleton/wrapper.html.erb

@@ -6,6 +6,7 @@
 <head>
   <meta charset="utf-8">
   <title><%= @title ? "#{@title} - #{index_title}" : index_title %></title>
+  <link rel="alternate" type="application/rss+xml" title="<%= index_title %>" href="/feed.xml">
   <style></style>
 </head>
 <body>