Fl4m3Ph03n1x

Fl4m3Ph03n1x

How to extract a tarball?

Background

I have a release file inside a tarball. However I want the final release to have some additional files and to move things around, for the convenience of the user.

This means I need to do 3 things:

  1. Extract the contents of the tarball into a folder
  2. Add the extra files to said folder and move some items around
  3. compress everything again and call it a day

Problem

While I have it clear on how to execute step 2, using File and friends, I have tried several ways to do steps 1 and 3 and I failed.

I have tried using :zip, but it returns a bad encoding error, probably because the file is not a zip but tar instead.

I am also aware of File.open("path", :read, :compressed), but I don’t want to read anything, I want to extract it into a new folder.

I also checked Unzip but it does not fit my use case.

Question

How can I extract a tar file into a folder and compress a folder into a tar file?

Marked As Solved

Fl4m3Ph03n1x

Fl4m3Ph03n1x

I was able to extract the file using:

:ok = :erl_tar.extract("tar_path", [{:cwd, "tmp"}, :compressed])

This will extract the tar file into the tmp folder. Once there I can do the rest !

Where Next?

Popular Backend topics Top

DevotionGeo
I know that -t flag is used along with -i flag for getting an interactive shell. But I cannot digest what the man page for docker run com...
New
dimitarvp
Hey everyone, I resumed work on my Elixir <=> SQLite library (which uses a Rust NIF underneath) and I am in a need of small and we...
New
jaimeiniesta
I maintain a project that lists hundreds of thousands of web pages, and I’d like to show a screenshot for each web page. There are alread...
New
Jsdr3398
I’ve been working on and rewriting my messaging platform several times for the past two years. With Discords new rebranding, it has reall...
New
mrmurphy
I’ve run into a situation where I’ve got a list of posts inside of a container that uses phx-update=“prepend”, and the posts on the socke...
New
Ookma-Kyi
I am learning Elixir at the moment but am finding it difficult to learn. The issue is there aren’t any good tutorial sites out there when...
New
JimmyCarterSon
Hello, I am. very new to Elixir lang I have only been doing it for about 2 weeks. I recently started following this tutorial todo list, ...
New
osbre
Hello everyone I’m trying to implement a “magic link” or “one-time login link” functionality I wonder what a secure way to implement it...
New
Fl4m3Ph03n1x
Background As I often do, I read books to learn and improve myself. I also enjoy teaching and helping others when I can, so this is somet...
New
apoorv-2204
Anyone know how to get in golang? I am from elixir background?.
New

Other popular topics Top

Devtalk
Hello Devtalk World! Please let us know a little about who you are and where you’re from :nerd_face:
New
AstonJ
If it’s a mechanical keyboard, which switches do you have? Would you recommend it? Why? What will your next keyboard be? Pics always w...
New
DevotionGeo
I know that -t flag is used along with -i flag for getting an interactive shell. But I cannot digest what the man page for docker run com...
New
AstonJ
You might be thinking we should just ask who’s not using VSCode :joy: however there are some new additions in the space that might give V...
New
wmnnd
Here’s the story how one of the world’s first production deployments of LiveView came to be - and how trying to improve it almost caused ...
New
Maartz
Hi folks, I don’t know if I saw this here but, here’s a new programming language, called Roc Reminds me a bit of Elm and thus Haskell. ...
New
PragmaticBookshelf
Rails 7 completely redefines what it means to produce fantastic user experiences and provides a way to achieve all the benefits of single...
New
PragmaticBookshelf
Build efficient applications that exploit the unique benefits of a pure functional language, learning from an engineer who uses Haskell t...
New
AstonJ
Was just curious to see if any were around, found this one: I got 51/100: Not sure if it was meant to buy I am sure at times the b...
New
First poster: bot
zig/http.zig at 7cf2cbb33ef34c1d211135f56d30fe23b6cacd42 · ziglang/zig. General-purpose programming language and toolchain for maintaini...
New