module Lono::Template::Evaluate
Public Instance Methods
evaluate_template_path(path)
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# File lib/lono/template/evaluate.rb, line 3 def evaluate_template_path(path) return unless File.exist?(path) begin instance_eval(File.read(path), path) rescue Exception => e template_evaluation_error(e) puts "\nFull error:" raise end end
template_evaluation_error(e)
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Prints out a user friendly task_definition error message
# File lib/lono/template/evaluate.rb, line 16 def template_evaluation_error(e) lines = e.backtrace.reject { |l| l.include?("/lib/lono/") } error_info = lines.first path, line_no, _ = error_info.split(':') line_no = line_no.to_i puts "Error evaluating #{path}:".color(:red) puts e.message puts "Here's the line in #{path} with the error:\n\n" contents = IO.read(path) content_lines = contents.split("\n") context = 5 # lines of context top, bottom = [line_no-context-1, 0].max, line_no+context-1 spacing = content_lines.size.to_s.size content_lines[top..bottom].each_with_index do |line_content, index| line_number = top+index+1 if line_number == line_no printf("%#{spacing}d %s\n".color(:red), line_number, line_content) else printf("%#{spacing}d %s\n", line_number, line_content) end end end