| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| |
| # --------------------------------------------------------- |
| # Expands a github link shortcut into a proper markdown link |
| # --------------------------------------------------------- |
| |
| module Jekyll |
| class GitHubLinkTag < Liquid::Tag |
| |
| def initialize(tag_name, input, tokens) |
| super |
| @input = input |
| end |
| |
| def render(context) |
| input = @input.sub(/".*"/, "").split |
| name = @input.match(/".*"/).to_s.gsub(/"/, "")#@input.split.drop(2).join(" ") |
| config = context.registers[:site].config |
| |
| path = input[0] |
| file = path.split('/').last |
| |
| page_gh_tag = context["page"]["gh_link_tag"] |
| # tag precendence: |
| # 1. input[1], |
| # 2. 'gh_link_tag' of page frontmatter |
| # 3. "master" (default) |
| gh_tag = input[1].nil? ? (page_gh_tag.nil? ? "master" : page_gh_tag) : input[1] |
| name = name.to_s == '' ? file : name |
| #refname = input[2].nil? ? file : input[2] |
| |
| "[#{name}](#{config["github_url"]}/blob/#{gh_tag}/#{path})" |
| end |
| end |
| end |
| |
| Liquid::Template.register_tag('gh_link', Jekyll::GitHubLinkTag) |