diff options
Diffstat (limited to 'lib/gitlab/dependency_linker/base_linker.rb')
-rw-r--r-- | lib/gitlab/dependency_linker/base_linker.rb | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/lib/gitlab/dependency_linker/base_linker.rb b/lib/gitlab/dependency_linker/base_linker.rb new file mode 100644 index 00000000000..7bbd154eb03 --- /dev/null +++ b/lib/gitlab/dependency_linker/base_linker.rb @@ -0,0 +1,86 @@ +module Gitlab + module DependencyLinker + class BaseLinker + URL_REGEX = %r{https?://[^'" ]+}.freeze + REPO_REGEX = %r{[^/'" ]+/[^/'" ]+}.freeze + + class_attribute :file_type + + def self.support?(blob_name) + Gitlab::FileDetector.type_of(blob_name) == file_type + end + + def self.link(*args) + new(*args).link + end + + attr_accessor :plain_text, :highlighted_text + + def initialize(plain_text, highlighted_text) + @plain_text = plain_text + @highlighted_text = highlighted_text + end + + def link + link_dependencies + + highlighted_lines.join.html_safe + end + + private + + def link_dependencies + raise NotImplementedError + end + + def license_url(name) + Licensee::License.find(name)&.url + end + + def github_url(name) + "https://github.com/#{name}" + end + + def link_tag(name, url) + %{<a href="#{ERB::Util.html_escape_once(url)}" rel="nofollow noreferrer noopener" target="_blank">#{ERB::Util.html_escape_once(name)}</a>} + end + + # Links package names based on regex. + # + # Example: + # link_regex(/(github:|:github =>)\s*['"](?<name>[^'"]+)['"]/) + # # Will link `user/repo` in `github: "user/repo"` or `:github => "user/repo"` + def link_regex(regex, &url_proc) + highlighted_lines.map!.with_index do |rich_line, i| + marker = StringRegexMarker.new(plain_lines[i], rich_line.html_safe) + + marker.mark(regex, group: :name) do |text, left:, right:| + url = yield(text) + url ? link_tag(text, url) : text + end + end + end + + def plain_lines + @plain_lines ||= plain_text.lines + end + + def highlighted_lines + @highlighted_lines ||= highlighted_text.lines + end + + def regexp_for_value(value, default: /[^'" ]+/) + case value + when Array + Regexp.union(value.map { |v| regexp_for_value(v, default: default) }) + when String + Regexp.escape(value) + when Regexp + value + else + default + end + end + end + end +end |