feat: implement ruby jekyll plugins for git-hash and root-include

docs/_plugins/git-hash.rb

@@ -0,0 +1,16 @@
+module Jekyll
+  class GitHashGenerator < Jekyll::Generator
+    priority :high
+    safe true
+
+    def generate(site)
+      hash = %x( git rev-parse --short HEAD ).strip
+      full_hash = %x( git rev-parse HEAD ).strip
+      site.data['hash'] = hash
+      site.data['full_hash'] = full_hash
+      date = %x( git show -s --format=%ci)
+      site.data['date'] = date
+    end
+  end
+end
+

docs/_plugins/root-include.rb

@@ -0,0 +1,49 @@
+class RootInclude < Liquid::Tag
+  def initialize(_tag_name, markup, _parse_context)
+    super
+    @markup = markup.strip
+  end
+
+  def render(context)
+    @dir = @markup
+    if (@markup.include?(" "))
+      @dir = @markup.split[0]
+      @lines = @markup.split[1]
+      split_strings = @lines.split(':')
+      start_string = split_strings[0].to_i
+      end_string = split_strings[1].to_i
+
+      expanded_path = Liquid::Template.parse(@dir).render(context)
+      root_path = File.expand_path(context.registers[:site].config['source'])
+      final_path = File.join(root_path, expanded_path)
+      file_read_opts = context.registers[:site].file_read_opts
+
+      read_lines_from_file(final_path, file_read_opts, start_string, end_string)
+    else
+      expanded_path = Liquid::Template.parse(@dir).render(context)
+      root_path = File.expand_path(context.registers[:site].config['source'])
+      final_path = File.join(root_path, expanded_path)
+      file_read_opts = context.registers[:site].file_read_opts
+      File.read(final_path, **file_read_opts)
+    end
+
+  end
+
+  def read_lines_from_file(file_path, file_read_opts, n, m)
+    lines = []
+    line_number = 1
+
+    File.foreach(file_path, **file_read_opts) do |line|
+      if line_number >= n && line_number <= m
+        lines << line
+      elsif line_number > m
+        break
+      end
+      line_number += 1
+    end
+
+    lines
+  end
+end
+
+Liquid::Template.register_tag('root_include', RootInclude)