97 lines
3.7 KiB
Ruby
97 lines
3.7 KiB
Ruby
module GitlabMarkdownHelper
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def gfm(text, html_options = {})
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return text if text.nil?
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return text if @project.nil?
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# Extract pre blocks
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# from http://github.github.com/github-flavored-markdown/
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extractions = {}
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text.gsub!(%r{<pre>.*?</pre>|<code>.*?</code>}m) do |match|
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md5 = Digest::MD5.hexdigest(match)
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extractions[md5] = match
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"{gfm-extraction-#{md5}}"
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end
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# match 1 2 3 4 5 6
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text.gsub!(/(\W)?(@([\w\._]+)|[#!$](\d+)|([\h]{6,40}))(\W)?/) do |match|
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prefix = $1
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reference = $2
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user_name = $3
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issue_id = $4
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merge_request_id = $4
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snippet_id = $4
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commit_id = $5
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suffix = $6
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# TODO: add popups with additional information
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ref_link = case reference
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# team member: @foo
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when /^@/
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user = @project.users.where(name: user_name).first
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member = @project.users_projects.where(user_id: user).first if user
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link_to("@#{user_name}", project_team_member_path(@project, member), html_options.merge(class: "gfm gfm-team_member #{html_options[:class]}")) if member
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# issue: #123
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when /^#/
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# avoid HTML entities
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unless prefix.try(:end_with?, "&") && suffix.try(:start_with?, ";")
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issue = @project.issues.where(id: issue_id).first
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link_to("##{issue_id}", project_issue_path(@project, issue), html_options.merge(title: "Issue: #{issue.title}", class: "gfm gfm-issue #{html_options[:class]}")) if issue
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end
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# merge request: !123
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when /^!/
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merge_request = @project.merge_requests.where(id: merge_request_id).first
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link_to("!#{merge_request_id}", project_merge_request_path(@project, merge_request), html_options.merge(title: "Merge Request: #{merge_request.title}", class: "gfm gfm-merge_request #{html_options[:class]}")) if merge_request
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# snippet: $123
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when /^\$/
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snippet = @project.snippets.where(id: snippet_id).first
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link_to("$#{snippet_id}", project_snippet_path(@project, snippet), html_options.merge(title: "Snippet: #{snippet.title}", class: "gfm gfm-snippet #{html_options[:class]}")) if snippet
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# commit: 123456...
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when /^\h/
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commit = @project.commit(commit_id)
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link_to(commit_id, project_commit_path(@project, id: commit.id), html_options.merge(title: "Commit: #{commit.author_name} - #{CommitDecorator.new(commit).title}", class: "gfm gfm-commit #{html_options[:class]}")) if commit
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end # case
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ref_link.nil? ? match : "#{prefix}#{ref_link}#{suffix}"
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end # gsub
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# Insert pre block extractions
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text.gsub!(/\{gfm-extraction-(\h{32})\}/) do
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extractions[$1]
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end
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text.html_safe
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end
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# circumvents nesting links, which will behave bad in browsers
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def link_to_gfm(body, url, html_options = {})
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gfm_body = gfm(body, html_options)
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gfm_body.gsub!(%r{<a.*?>.*?</a>}m) do |match|
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"</a>#{match}#{link_to("", url, html_options)[0..-5]}" # "</a>".length +1
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end
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link_to(gfm_body.html_safe, url, html_options)
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end
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def markdown(text)
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@__renderer ||= Redcarpet::Markdown.new(Redcarpet::Render::GitlabHTML.new(self, filter_html: true, with_toc_data: true), {
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no_intra_emphasis: true,
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tables: true,
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fenced_code_blocks: true,
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autolink: true,
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strikethrough: true,
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lax_html_blocks: true,
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space_after_headers: true,
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superscript: true
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})
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@__renderer.render(text).html_safe
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end
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end
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