class MailEngine::ZipProcessor
Public Class Methods
extract_all_files(zip_file_path, needed_exts) { |file_path| ... }
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Usage: MailEngine::ZipProcessor.extract_all_files
(path, [“css”, “jpg”, “gif”]) do |file_path|
Image.create :file => File.open(file_path)
end
Params: zip_file_path => /path/to/your/zip_file needed_exts => ['jpg', 'jpeg', 'css']
Result: the first item of array is file paths you needed and extracted from zip file. the second item is the unzip path.
[
[ "/Volumes/documents/projects/work/mail_engine/test/dummy/tmp/zip_processor_tmp_dir/compress_by_dir9671920/compress_by_file/css/example.css", "/Volumes/documents/projects/work/mail_engine/test/dummy/tmp/zip_processor_tmp_dir/compress_by_dir9671920/compress_by_file/images/logo.png", "/Volumes/documents/projects/work/mail_engine/test/dummy/tmp/zip_processor_tmp_dir/compress_by_dir9671920/compress_by_file/index.html" ], "/Volumes/documents/projects/work/mail_engine/test/dummy/tmp/zip_processor_tmp_dir/compress_by_dir9671920"
]
# File lib/mail_engine/zip_processor.rb, line 25 def extract_all_files(zip_file_path, needed_exts) return unless zip_file_path =~ /\.zip$/i # Create zip_processor_tmp_dir dir zip_processor_tmp_dir = File.join(Rails.root, 'tmp', 'zip_processor_tmp_dir') unless File.exist?(zip_processor_tmp_dir) FileUtils.mkdir_p(zip_processor_tmp_dir) end file_fullname = File.basename(zip_file_path) filename = file_fullname.sub(/.zip$/, "") unzip_path = File.join(zip_processor_tmp_dir, "#{filename}#{rand(10000000)}") unzip_result = system("unzip #{zip_file_path} -d #{unzip_path} > /dev/null") unzip_result = unzip_result && $?.exitstatus == 0 return unless unzip_result file_ext_param_str = needed_exts.map {|ext| "-iname '*.#{ext}'" }.join(" -o ") result_list_string = `find #{unzip_path} #{file_ext_param_str}` result_list = result_list_string.split("\n") if block_given? result_list.each do |file_path| yield file_path end # remove the unzip tmp files. system("rm -rf #{unzip_path}") else [result_list, unzip_path] end end