diff options
Diffstat (limited to '_plugins')
| -rw-r--r-- | _plugins/article.rb | 75 | ||||
| -rw-r--r-- | _plugins/render_helper.rb | 32 | ||||
| -rw-r--r-- | _plugins/twitter.rb | 15 |
3 files changed, 111 insertions, 11 deletions
diff --git a/_plugins/article.rb b/_plugins/article.rb new file mode 100644 index 0000000..3107b4a --- /dev/null +++ b/_plugins/article.rb @@ -0,0 +1,75 @@ +# frozen_string_literal: true + +# Copyright (C) 2019 Miquel Sabaté Solà <mikisabate@gmail.com> +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU Affero General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Affero General Public License for more details. +# +# You should have received a copy of the GNU Affero General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +require "time" +require_relative "render_helper" + +module Jekyll + # Render og:type related tags. + class RenderTypeTags < Liquid::Tag + include ::Jekyll::RenderHelper + + def render(context) + if ["posts"].include?(context["page"]["collection"]) + render_article_tags(context["page"]) + else + '<meta property="og:type" content="website" />' + end + end + + protected + + # Render all the tags related to the article og:type. + def render_article_tags(page) + tags = page["tags"].inject("") { |acc, t| acc + render_meta("article:tag", t) } + + '<meta property="og:type" content="article" />' + + render_meta("og:author", "Miquel Sabaté Solà") + + render_meta("profile:first_name", "Miquel") + + render_meta("profile:last_name", "Sabaté Solà") + + render_meta("profile:username", "mssola") + + render_meta("profile:gender", "male") + + render_meta("article:section", page["collection"]) + + render_meta("article:published_time", published_time(page)) + + render_meta("article:modified_time", modified_time(page)) + + tags + end + + # Returns the published time of the given page. + def published_time(page) + # We could do fancy stuff like using DateTime.strptime and so on, but + # Jekyll completely disregards the hour, minutes, etc., so why bother. + page["date"].to_s.split.first + end + + # Returns the modified time of the given page. + def modified_time(page) + path = File.expand_path(File.join(File.dirname(__FILE__), "..", page["path"])) + out = `git log -n 1 --pretty='format:%cd' --date=iso8601-strict -- #{path}` + + begin + Time.iso8601(out) + out + rescue ArgumentError => e + puts "[WARNING] Could not parse the given modified time from Git: #{e}" + nil + end + end + end +end + +Liquid::Template.register_tag("render_type_tags", Jekyll::RenderTypeTags) diff --git a/_plugins/render_helper.rb b/_plugins/render_helper.rb new file mode 100644 index 0000000..dc18ba4 --- /dev/null +++ b/_plugins/render_helper.rb @@ -0,0 +1,32 @@ +# frozen_string_literal: true + +# Copyright (C) 2019 Miquel Sabaté Solà <mikisabate@gmail.com> +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU Affero General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Affero General Public License for more details. +# +# You should have received a copy of the GNU Affero General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +module Jekyll + # RenderHelper implements methods that help other plugins to render HTML code. + module RenderHelper + # Render an HTML meta tag with the given property and content + # attributes. You may optionally pass a `name` argument. When true, it will + # use "name" instead of "property". Defaults to nil. + def render_meta(property, content, name: nil) + if name + "<meta name=\"#{property}\" content=\"#{content}\" />" + else + "<meta property=\"#{property}\" content=\"#{content}\" />" + end + end + end +end diff --git a/_plugins/twitter.rb b/_plugins/twitter.rb index e65831b..e04eecc 100644 --- a/_plugins/twitter.rb +++ b/_plugins/twitter.rb @@ -15,9 +15,13 @@ # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <https://www.gnu.org/licenses/>. +require_relative "render_helper" + module Jekyll # Render the OG image meta HTML tag for the currently rendered page. class RenderOGImageTag < Liquid::Tag + include ::Jekyll::RenderHelper + # The path to be used when the current page does not have a specific image. DEFAULT_PATH = "/images/default.png" @@ -44,17 +48,6 @@ module Jekyll def normalize(str) str.gsub(/\s/, "-").downcase end - - # Render an HTML meta tag with the given property and content - # attributes. You may optionally pass a `name` argument. When true, it will - # use "name" instead of "property". Defaults to nil. - def render_meta(property, content, name: nil) - if name - "<meta name=\"#{property}\" content=\"#{content}\" />" - else - "<meta property=\"#{property}\" content=\"#{content}\" />" - end - end end end |