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require 'imgkit' | |
class InvalidInputFileError < Exception; end | |
class Converter | |
def initialize(input, output = nil) | |
raise InvalidInputFileError unless html_file?(input) | |
@input = input | |
if @output | |
@ouput = output | |
else | |
@output = output_filename_from @input | |
end | |
end | |
def convert_file | |
kit = IMGKit.new(File.new(@input)) | |
kit.to_img(:png) | |
kit.to_file(@output) | |
end | |
protected | |
def html_file?(filename) | |
filename.match(/\.html$/) | |
end | |
def output_filename_from(filename) | |
File.basename(filename, File.extname(filename)) | |
end | |
end | |
conv = Converter.new("faktura.html") | |
conv.convert_file |
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