shy

Safely build shell one-liners with live feedback!

Features

See live output of your shell command as you're writing it.
'Dangerous' commands are printed but not run (currently mv, cp, and rm).
Currently supports Bash, Fish, and Zsh.

Usage

Run shy and start typing your shell command. The output of the command is printed below, and will refresh automatically if you make changes. Once you're happy press escape, enter, or Ctrl+C to exit. The final version of your shell one-liner will be printed.

Installation

Using nix (without flakes):

$ nix-env -if https://github.com/jwoudenberg/shy/archive/main.tar.gz

Using nix (with flakes):

$ nix profile install github:jwoudenberg/shy

Building

The easiest way to get the tooling is using direnv and nix. After installing these tools, in the root of the shy repository, run:

$ direnv allow    # Add the dev tooling to your local shell.
$ cabal build     # Compile the code.
$ cabal run       # Compile, then run the current version of the code.
$ ghcid           # Start a code watcher providing live feedback while you work.
$ hpack           # Update shy.cabal after making changes to package.yaml.