How to pass current buffer as argument to a shell script?

[lando-tech]

I am trying to write a shell script that takes the current file/buffer as an argument.
A simple example:

#!/bin/bash python3 "$1" # Argument is the path to the current buffer

Is there a way to achieve this using a custom key binding in the config.toml?

Here is the current configuration I was experimenting with:

[keys.normal.'\'] R = ":run-shell-command ~/<path-to-script> {file-path}"

I just started using helix and I am still reading through the docs, but I haven't found anything yet on this particular feature or if it even exists.

[quantonganh]

Do you want to give WezTerm a try? https://quantonganh.com/2023/08/19/turn-helix-into-ide.md

[david-crespo]

The command expansions PR adds this functionality. It's not merged yet, so you would need to build from source to use it. You can see an example in the docs part of the PR:

[keys.normal]
# Print blame info for the line where the main cursor is.
C-b = ":echo %sh{git blame -L %{linenumber} %{filename}}"

The PR still needs maintainer approval, but I've been building from source and using that PR for months. It works well.

[lando-tech]

Thanks! That did the trick.

[wmstack]

What happens when the buffer isn't backed by a file? Would one still by able to supply it as a file handle?