CODEWITHSUNDEEP
ruby-on-railsrubyruby-on-rails-3file-iozip
Milind
Milind

Reputation: 5112

Scan if the folder has .zip files then delete it-RAILS

i have a functionality where all the uploaded files are first saved to a public/submitted_folder.Now the enhancement to it this functionality is that the user can view all the uploaded files in zip.i have implemented the functionality that allows user to download the files in zip format.now i have a problem here.i need to delete the newly generated zip file after its downloaded.I want to scan the submitted_folder to scan if any zip files exists and then delete it.how can i do that.what if there are more subfolders such as submitted_folder/folder1/folder2,how can i scan all of them to find and delete any zip files.i referred api for File in ruby,but confused...

Upvotes: 0

Views: 1255

Answers (2)

davegson
davegson

Reputation: 8331

When working with files, try sticking with the Dir and File methods. There are great tutorials out there to get you started, I'd suggest this screencast.

Regarding your question

When you are in the right directory, grabbing and deleting zip files is easy.

Grab all zip-files

files = Dir.glob("*.zip")

Deleting a certain file:

File.delete("#{file}")

Extracting the files is a bit more tricky, I myself created a folder to put all the extracted files into and then worked from there. You will also need the rubyzip gem to handle the ZIP files better.

require 'zip/zip'
# creates a directory with a name
Dir.mkdir("#{Dir.pwd}/#{name}") unless File.exists?("#{Dir.pwd}/#{name}")

# opens up the zip file
zipfile = Zip::ZipFile::open(Dir.pwd + "/" + zip_path)

# changes the working directory to the newly created folder
Dir.chdir "#{name}"

# unzips the zip and returns the xml files in it

files = []
zipfile.each do |file|
    zipfile.extract(file, "#{Dir.pwd}/#{file.name}") unless File.exists?("#{Dir.pwd}/#{file.name}")
end

Edit

As it turns out, there's a simple function to get search the current directory and all the subdirectories. ** being the key

all_zip_files = Dir.glob("**/*.zip")

After you grabbed those files, you can extract, delete or do whatever you wish :)

Upvotes: 0

usha
usha

Reputation: 29369

Assuming that you are using linux, you can execute bash commands from ruby.

Below is the linux command that removes all the files with extension .zip under the path "path"(including sub directories)

find path -type f -name *.zip -delete

execute it from app using

system("find path -type f -name *.zip -delete")

or 

`find path -type f -name *.zip -delete`

Upvotes: 1

Related Questions