rari404 cbe6eb2ab8 terminal: Remove SHLVL from terminal environment to fix incorrect shell level (#44835)
Fixes #33958

## Problem

When opening a terminal in Zed, `SHLVL` incorrectly starts at 2 instead
of 1. On `workspace: reload`, it increases by 2 instead of 1.

## Root Cause

1. Zed's `shell_env::capture()` spawns a login shell (`-l -i -c`) to
capture the user's environment, which increments `SHLVL`
2. The captured `SHLVL` is passed through to the PTY options
3. When alacritty_terminal spawns the user's shell, it increments
`SHLVL` again

Result: `SHLVL` = captured value + 1 = 2 (when launched from Finder)

## Solution

Remove `SHLVL` from the environment in `TerminalBuilder::new()` before
passing it to alacritty_terminal. This allows the spawned shell to
initialize `SHLVL` to 1 on its own, matching the behavior of standalone
terminal emulators like iTerm2, Kitty, and Alacritty.

## Testing

- Launch Zed from Finder → open terminal → `echo $SHLVL` → should output
`1`
- Launch Zed from shell → open terminal → `echo $SHLVL` → should output
`1`
- `workspace: reload` → open terminal → `echo $SHLVL` → should remain
`1`
- Tested with bash, zsh, fish

Release Notes:

- Fixed terminal `$SHLVL` starting at 2 instead of 1
([#33958](https://github.com/zed-industries/zed/issues/33958))
2025-12-15 08:12:24 +01:00
2025-10-21 09:58:26 +02:00
2025-10-17 18:49:11 +02:00
2025-09-23 16:49:45 +00:00
2025-05-17 12:34:42 +00:00
2025-09-16 21:58:40 +00:00
2025-10-27 13:27:59 -04:00
WIP
2023-12-14 09:25:14 -07:00
2025-03-10 01:06:11 -07:00
2024-09-30 17:46:21 -04:00
2025-11-12 20:27:04 +00:00
2025-02-04 09:02:59 -05:00
2025-02-04 09:02:59 -05:00
2025-10-27 13:27:59 -04:00
2025-11-10 22:05:46 +00:00
2025-10-17 18:58:14 +00:00
2025-03-10 01:06:11 -07:00

Zed

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Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.


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