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# frozen_string_literal: true
module Tooling
module Danger
module Suggestor
# For file lines matching `regex` adds suggestion `replacement` with `comment_text` added.
def add_suggestion(filename:, regex:, replacement: nil, comment_text: nil, exclude: nil, once_per_file: false)
added_lines = added_lines_matching(filename, regex)
return if added_lines.empty?
file_lines = project_helper.file_lines(filename)
added_lines.each_with_object([]) do |added_line, processed_line_numbers|
break if once_per_file && processed_line_numbers.any?
line_number = find_line_number(file_lines, added_line.delete_prefix('+'),
exclude_indexes: processed_line_numbers)
next unless line_number
next if !exclude.nil? && added_line.include?(exclude)
processed_line_numbers << line_number
if replacement
suggestion_text = file_lines[line_number]
suggestion_text = suggestion_text.gsub(regex, replacement)
end
markdown(comment(comment_text, suggestion_text), file: filename, line: line_number.succ)
end
end
private
def added_lines_matching(filename, regex)
helper.changed_lines(filename).grep(/\A\+( )?/).grep(regex)
end
def find_line_number(file_lines, searched_line, exclude_indexes: [])
_, index = file_lines.each_with_index.find do |file_line, index|
file_line == searched_line && !exclude_indexes.include?(index)
end
index
end
def comment(comment_text = nil, suggested_line = nil)
if suggested_line
suggestion_text = <<~SUGGESTION
```suggestion
%<suggested_line>s
```
SUGGESTION
end
comment_body = <<~COMMENT_BODY.chomp
#{suggestion_text}
#{comment_text}
COMMENT_BODY
format(comment_body.chomp, suggested_line: suggested_line)
end
end
end
end
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