Control a Shell With pty-shell

Introducing pty-shell which is an extension of pty crate

Transcript

1. Control a Shell With pty-shell Rust of Us - Chapter 5 2015-12-23 @hibariya
2. Hi, there. • Hika Hibariya • @hibariya • hibariya.org
3. pty
4. pty: Fork With a New TTY https://github.com/hibariya/pty-rs • pty::fork() • Substitute of PTY.spawn
5. pty: Fork With a New TTY
6. It’s Not Enough My original purpose is to control STDIO of a shell process. To accomplish it, I have to do followings. • Do exec a shell command (e.g. bash) • Make parent process enter raw-mode • Connect parent STDIO to child STDIO • Notify winsize changes from parent to child
7. pty-shell
8. pty-shell: A Dedicated Extension For Shell
9. pty-shell: Control STDIO of a Shell https://github.com/hibariya/pty-shell Spawns a new shell and connects to its parent’ s STDIO. Then makes the parent act as proxy. Anyway, you can hook the INPUT/OUTPUT of a shell process. For example: you can play any sound effect and/or you can record or share output of the terminal.
10. What To Use? For example: Terminal sharing tool https://github.com/idobata/hokaido
11. Do Something On INPUT/OUTPUT
12. Play Sound Effects
13. Send Messages
14. Record It
15. Anything
16. use pty; use pty_shell::{PtyProxy, PtyHandler}; struct MyHandler; impl PtyHandler for MyHandler { fn input(&mut self, input: Vec<u8>) { // do something with input } fn output(&mut self, output: Vec<u8>) { // do something with output } }
17. fn main() { let child = pty::fork().unwrap(); child.exec("bash"); child.proxy(MyHandler); child.wait(); }
18. extern crate pty_shell;