Terminal Suggest: Add support for other shells (eg. zsh, bash)

[davidthing]

Feature Request

terminal-suggest support for zsh and bash shells, similar to the existing support for Powershell:

Ideally, VS Code would pick up the completions that a user already configured for their terminal. As a zsh user (at work) and bash user (at home), I wouldn't mind if enabling this feature required some minimal .zshrc/.bashrc changes (we're used to that kind of thing). It also wouldn't be a deal-breaker if I needed to hit TAB to generate the list of completions, but it'd be nice to have the completions updated after each input change.

Motivation

Terminal completion pop-ups are a feature available in several newer terminals/IDE's like Warp, Fig/AmazonQ, and JetBrains/IntelliJ. I'm quite excited to see that VS Code is adding support for this! However, switching to pwsh isn't in the cards for me. Plus, my teammates all use either zsh or bash, and it's harder for me to sell the idea of using VS Code without this feature.

Beyond the obvious aesthetic improvement, having a pop-up, scrollable list of options can be quite helpful for long lists of completion options, such as git <TAB>:

zsh: do you wish to see all 141 possibilities (141 lines)?

Prior Work

PR #211962 disabled the terminal-suggest feature for all shells except powershell. Therefore it seems not possible to use this feature for any other shells, even with an extension.