Fig prevents Multipass shell from working

[imgrant]

Sanity checks

• [X] I have searched github.com/withfig/fig/issues and there are no duplicates of my issue
• [X] I have run fig doctor in the affected terminal session
• [X] I have run fig restart and tested again (tell us if that fixed it)

Issue Details

Description:

Opening a shell into a VM with Multipass doesn't work with Fig.

Steps to reproduce:

1. Launch a shell from the Multipass menu bar icon: This executes the command multipass shell primary with the default terminal app to open a shell in the 'primary' VM.
2. Observe that the terminal app opens, but with a prompt on the local machine, not in the VM. E.g:

/private/var/folders/8j/d546rjq909586w84qc5d9tg80000gn/T/multipass-gui.AHdhcr.command; exit
Last login: Tue Oct  4 16:13:54 on ttys011
Welcome to fish, the friendly interactive shell
Type help for instructions on how to use fish

You can see at the top there that it seems to have run the command scriptlet followed by exit.

Expectation:

The shell prompt should be inside the VM. E.g. manually running multipass shell primary from an already open terminal:

$ user@MacBookPro> multipass shell primary
Welcome to Ubuntu 22.04.1 LTS (GNU/Linux 5.15.0-48-generic aarch64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage

  System information as of Tue Oct  4 16:18:53 BST 2022

  System load:             0.05615234375
  Usage of /:              29.4% of 4.68GB
  Memory usage:            19%
  Swap usage:              0%
  Processes:               87
  Users logged in:         0
  IPv4 address for enp0s1: 192.168.64.3
  IPv6 address for enp0s1: fd15:3fde:3263:1c37:5054:ff:fe6b:817f


0 updates can be applied immediately.


The list of available updates is more than a week old.
To check for new updates run: sudo apt update

Last login: Tue Oct  4 16:12:12 2022 from 192.168.64.1
To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.

ubuntu@primary:~$

Environment:

• macOS
• iTerm2 terminal app (although same effect with default Terminal.app)
• Fish shell (set to default shell for my local user)
• Fig installed & doctor reports ok (i.e. ~/.config/fish/conf.d contains Fig pre and post scripts)
• Fig iTerm2 integration enabled

Diagnostic steps taken:

If I remove the files ~/.config/fish/conf.d/00_fig_pre.fish and ~/.config/fish/conf.d/99_fig_post.fish, then it works as expected.

Environment

fig-details:
  - desktop-version: Version 1.0.61 (B538) [Beta] [British]
hardware-info:
  - model: MacBook Pro
  - model-id: MacBookPro18,2
  - chip-id: Apple M1 Max
  - cores: 10 (8 performance and 2 efficiency)
  - mem: 64 GB
os-info:
  - macOS 12.6.0 (21G115)
environment:
  - shell: /nix/store/lwaly4qzlf9vmx5jrag1zrzc2df4bpdd-fish-3.4.0/bin/fish
  - terminal: iterm
  - cwd: /Users/ian/.config/fish/conf.d
  - exe-path: /Users/ian/.local/bin/fig
  - install-method: brew
  - env-vars:
    - PATH: /Users/ian/.pyenv/shims:/Users/ian/.pyenv/bin:/Users/ian/.nix-profile/bin:/nix/var/nix/profiles/default/bin:/Users/ian/.config/composer/vendor/bin:/Users/ian/go/bin:/Users/ian/.local/bin:/Users/ian/.fig/bin:/opt/local/bin:/opt/local/sbin:/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Applications/VMware Fusion Tech Preview.app/Contents/Public:/usr/local/MacGPG2/bin:/Users/ian/.nix-profile/bin:/etc/profiles/per-user/ian/bin:/run/current-system/sw/bin:/nix/var/nix/profiles/default/bin
    - SHELL: /run/current-system/sw/bin/fish
    - TERM_SESSION_ID: e154a144-fc63-4427-9334-00ac0cbc2a64
    - FIG_SET_PARENT: e154a144-fc63-4427-9334-00ac0cbc2a64
    - FIG_TERM_VERSION: 5.2.0
    - FIG_TERM: 1
    - FIG_PARENT:
    - FIG_INTEGRATION_VERSION: 8
    - TERM: xterm-256color
    - FIG_PID: 1095
- integrations:
  - SSH: false
  - TMUX: false
  - iTerm: installed!
  - Hyper: application is not present.
  - Visual Studio Code: installed!
  - Docker: true