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require 'gitlab/markdown'
module Gitlab
module Markdown
# HTML filter that replaces commit range references with links.
#
# This filter supports cross-project references.
class CommitRangeReferenceFilter < ReferenceFilter
include CrossProjectReference
# Public: Find commit range references in text
#
# CommitRangeReferenceFilter.references_in(text) do |match, commit_range, project_ref|
# "<a href=...>#{commit_range}</a>"
# end
#
# text - String text to search.
#
# Yields the String match, the String commit range, and an optional String
# of the external project reference.
#
# Returns a String replaced with the return of the block.
def self.references_in(text)
text.gsub(CommitRange.reference_pattern) do |match|
yield match, $~[:commit_range], $~[:project]
end
end
def initialize(*args)
super
@commit_map = {}
end
def call
replace_text_nodes_matching(CommitRange.reference_pattern) do |content|
commit_range_link_filter(content)
end
end
# Replace commit range references in text with links to compare the commit
# ranges.
#
# text - String text to replace references in.
#
# Returns a String with commit range references replaced with links. All
# links have `gfm` and `gfm-commit_range` class names attached for
# styling.
def commit_range_link_filter(text)
self.class.references_in(text) do |match, id, project_ref|
project = self.project_from_ref(project_ref)
range = CommitRange.new(id, project)
if range.valid_commits?
push_result(:commit_range, range)
url = url_for_commit_range(project, range)
title = range.reference_title
klass = reference_class(:commit_range)
data = data_attribute(project.id)
project_ref += '@' if project_ref
%(<a href="#{url}" #{data}
title="#{title}"
class="#{klass}">#{project_ref}#{range}</a>)
else
match
end
end
end
def url_for_commit_range(project, range)
h = Gitlab::Application.routes.url_helpers
h.namespace_project_compare_url(project.namespace, project,
range.to_param.merge(only_path: context[:only_path]))
end
end
end
end
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