module DiffHelper def mark_inline_diffs(old_line, new_line) old_diffs, new_diffs = Gitlab::Diff::InlineDiff.new(old_line, new_line).inline_diffs marked_old_line = Gitlab::Diff::InlineDiffMarker.new(old_line).mark(old_diffs, mode: :deletion) marked_new_line = Gitlab::Diff::InlineDiffMarker.new(new_line).mark(new_diffs, mode: :addition) [marked_old_line, marked_new_line] end def expand_all_diffs? params[:expand_all_diffs].present? end def diff_view @diff_view ||= begin diff_views = %w(inline parallel) diff_view = cookies[:diff_view] diff_view = diff_views.first unless diff_views.include?(diff_view) diff_view.to_sym end end def diff_options options = { ignore_whitespace_change: hide_whitespace?, no_collapse: expand_all_diffs? } if action_name == 'diff_for_path' options[:no_collapse] = true options[:paths] = params.values_at(:old_path, :new_path) end options end def diff_match_line(old_pos, new_pos, text: '', view: :inline, bottom: false) content = content_tag :td, text, class: "line_content match #{view == :inline ? '' : view}" cls = ['diff-line-num', 'unfold', 'js-unfold'] cls << 'js-unfold-bottom' if bottom html = '' if old_pos html << content_tag(:td, '...', class: cls + ['old_line'], data: { linenumber: old_pos }) html << content unless view == :inline end if new_pos html << content_tag(:td, '...', class: cls + ['new_line'], data: { linenumber: new_pos }) html << content end html.html_safe end def diff_line_content(line) if line.blank? " ".html_safe else # We can't use `sub` because the HTML-safeness of `line` will not survive. line[0] = '' if line.start_with?('+', '-', ' ') line end end def parallel_diff_discussions(left, right, diff_file) return unless @grouped_diff_discussions discussions_left = discussions_right = nil if left && (left.unchanged? || left.removed?) line_code = diff_file.line_code(left) discussions_left = @grouped_diff_discussions[line_code] end if right && right.added? line_code = diff_file.line_code(right) discussions_right = @grouped_diff_discussions[line_code] end [discussions_left, discussions_right] end def inline_diff_btn diff_btn('Inline', 'inline', diff_view == :inline) end def parallel_diff_btn diff_btn('Side-by-side', 'parallel', diff_view == :parallel) end def submodule_link(blob, ref, repository = @repository) tree, commit = submodule_links(blob, ref, repository) commit_id = if commit.nil? Commit.truncate_sha(blob.id) else link_to Commit.truncate_sha(blob.id), commit end [ content_tag(:span, link_to(truncate(blob.name, length: 40), tree)), '@', content_tag(:span, commit_id, class: 'commit-sha') ].join(' ').html_safe end def commit_for_diff(diff_file) return diff_file.content_commit if diff_file.content_commit if diff_file.deleted_file @base_commit || @commit.parent || @commit else @commit end end def diff_file_html_data(project, diff_file_path, diff_commit_id) { blob_diff_path: namespace_project_blob_diff_path(project.namespace, project, tree_join(diff_commit_id, diff_file_path)), view: diff_view } end def editable_diff?(diff) !diff.deleted_file && @merge_request && @merge_request.source_project end private def diff_btn(title, name, selected) params_copy = params.dup params_copy[:view] = name # Always use HTML to handle case where JSON diff rendered this button params_copy.delete(:format) link_to url_for(params_copy), id: "#{name}-diff-btn", class: (selected ? 'btn active' : 'btn'), data: { view_type: name } do title end end def commit_diff_whitespace_link(project, commit, options) url = namespace_project_commit_path(project.namespace, project, commit.id, params_with_whitespace) toggle_whitespace_link(url, options) end def diff_merge_request_whitespace_link(project, merge_request, options) url = diffs_namespace_project_merge_request_path(project.namespace, project, merge_request, params_with_whitespace) toggle_whitespace_link(url, options) end def diff_compare_whitespace_link(project, from, to, options) url = namespace_project_compare_path(project.namespace, project, from, to, params_with_whitespace) toggle_whitespace_link(url, options) end def hide_whitespace? params[:w] == '1' end def params_with_whitespace hide_whitespace? ? request.query_parameters.except(:w) : request.query_parameters.merge(w: 1) end def toggle_whitespace_link(url, options) options[:class] ||= '' options[:class] << ' btn btn-default' link_to "#{hide_whitespace? ? 'Show' : 'Hide'} whitespace changes", url, class: options[:class] end def render_overflow_warning?(diff_files) diffs = @merge_request_diff.presence || diff_files diffs.overflow? end end