142 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			Ruby
		
	
	
	
			
		
		
	
	
			142 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			Ruby
		
	
	
	
| # frozen_string_literal: true
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| 
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| module SnippetsHelper
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|   def reliable_snippet_path(snippet, opts = nil)
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|     if snippet.project_id?
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|       project_snippet_path(snippet.project, snippet, opts)
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|     else
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|       snippet_path(snippet, opts)
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|     end
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|   end
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| 
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|   def download_snippet_path(snippet)
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|     if snippet.project_id
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|       raw_project_snippet_path(@project, snippet, inline: false)
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|     else
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|       raw_snippet_path(snippet, inline: false)
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|     end
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|   end
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| 
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|   # Return the path of a snippets index for a user or for a project
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|   #
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|   # @returns String, path to snippet index
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|   def subject_snippets_path(subject = nil, opts = nil)
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|     if subject.is_a?(Project)
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|       project_snippets_path(subject, opts)
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|     else # assume subject === User
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|       dashboard_snippets_path(opts)
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|     end
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|   end
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| 
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|   # Get an array of line numbers surrounding a matching
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|   # line, bounded by min/max.
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|   #
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|   # @returns Array of line numbers
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|   def bounded_line_numbers(line, min, max, surrounding_lines)
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|     lower = line - surrounding_lines > min ? line - surrounding_lines : min
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|     upper = line + surrounding_lines < max ? line + surrounding_lines : max
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|     (lower..upper).to_a
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|   end
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| 
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|   # Returns a sorted set of lines to be included in a snippet preview.
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|   # This ensures matching adjacent lines do not display duplicated
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|   # surrounding code.
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|   #
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|   # @returns Array, unique and sorted.
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|   def matching_lines(lined_content, surrounding_lines, query)
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|     used_lines = []
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|     lined_content.each_with_index do |line, line_number|
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|       used_lines.concat bounded_line_numbers(
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|         line_number,
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|         0,
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|         lined_content.size,
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|         surrounding_lines
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|       ) if line.downcase.include?(query.downcase)
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|     end
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| 
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|     used_lines.uniq.sort
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|   end
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| 
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|   # 'Chunkify' entire snippet.  Splits the snippet data into matching lines +
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|   # surrounding_lines() worth of unmatching lines.
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|   #
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|   # @returns a hash with {snippet_object, snippet_chunks:{data,start_line}}
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|   def chunk_snippet(snippet, query, surrounding_lines = 3)
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|     lined_content = snippet.content.split("\n")
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|     used_lines = matching_lines(lined_content, surrounding_lines, query)
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| 
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|     snippet_chunk = []
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|     snippet_chunks = []
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|     snippet_start_line = 0
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|     last_line = -1
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| 
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|     # Go through each used line, and add consecutive lines as a single chunk
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|     # to the snippet chunk array.
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|     used_lines.each do |line_number|
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|       if last_line < 0
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|         # Start a new chunk.
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|         snippet_start_line = line_number
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|         snippet_chunk << lined_content[line_number]
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|       elsif last_line == line_number - 1
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|         # Consecutive line, continue chunk.
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|         snippet_chunk << lined_content[line_number]
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|       else
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|         # Non-consecutive line, add chunk to chunk array.
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|         snippet_chunks << {
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|           data: snippet_chunk.join("\n"),
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|           start_line: snippet_start_line + 1
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|         }
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| 
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|         # Start a new chunk.
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|         snippet_chunk = [lined_content[line_number]]
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|         snippet_start_line = line_number
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|       end
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| 
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|       last_line = line_number
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|     end
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|     # Add final chunk to chunk array
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|     snippet_chunks << {
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|       data: snippet_chunk.join("\n"),
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|       start_line: snippet_start_line + 1
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|     }
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| 
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|     # Return snippet with chunk array
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|     { snippet_object: snippet, snippet_chunks: snippet_chunks }
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|   end
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| 
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|   def snippet_embed
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|     "<script src=\"#{url_for(only_path: false, overwrite_params: nil)}.js\"></script>"
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|   end
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| 
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|   def embedded_snippet_raw_button
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|     blob = @snippet.blob
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|     return if blob.empty? || blob.raw_binary? || blob.stored_externally?
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| 
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|     snippet_raw_url = if @snippet.is_a?(PersonalSnippet)
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|                         raw_snippet_url(@snippet)
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|                       else
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|                         raw_project_snippet_url(@snippet.project, @snippet)
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|                       end
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| 
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|     link_to external_snippet_icon('doc-code'), snippet_raw_url, class: 'btn', target: '_blank', rel: 'noopener noreferrer', title: 'Open raw'
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|   end
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| 
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|   def embedded_snippet_download_button
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|     download_url = if @snippet.is_a?(PersonalSnippet)
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|                      raw_snippet_url(@snippet, inline: false)
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|                    else
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|                      raw_project_snippet_url(@snippet.project, @snippet, inline: false)
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|                    end
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| 
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|     link_to external_snippet_icon('download'), download_url, class: 'btn', target: '_blank', title: 'Download', rel: 'noopener noreferrer'
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|   end
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| 
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|   def public_snippet?
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|     if @snippet.project_id?
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|       can?(nil, :read_project_snippet, @snippet)
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|     else
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|       can?(nil, :read_personal_snippet, @snippet)
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|     end
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|   end
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| end
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