fix(cli): restore terminal state after Ctrl+C in interactive commands

[Claude]

When interrupting vp dev or vp preview with Ctrl+C on Unix terminals (particularly macOS/Ghostty), escape sequences appeared in the shell prompt. This occurred because Vite sets the terminal to raw mode for interactive features, and when SIGINT interrupted the child process, the terminal state wasn't restored before the parent exited.

Changes

• crates/vite_command/src/lib.rs:

  • Added TerminalStateGuard RAII guard that saves terminal attributes via tcgetattr() on creation and restores via tcsetattr() on drop
  • Added execute_with_terminal_guard() wrapper function that applies the guard during command execution
  • Guard only activates when stdin is a TTY, safely ignoring pipes/redirects

• packages/cli/binding/src/cli/execution.rs:

  • Modified resolve_and_execute() to detect interactive commands (Dev, Preview)
  • Routes interactive commands through terminal guard wrapper
  • Non-interactive commands use standard execution path unchanged

• crates/vite_command/Cargo.toml:

  • Added "term" feature to nix dependency for terminal state APIs

Implementation

// Terminal state saved before spawning child
let _guard = TerminalStateGuard::save(STDIN_FILENO);

// Child runs with inherited stdio
let mut child = cmd.spawn()?;
child.wait().await?

// Guard's Drop impl automatically restores terminal on exit,
// even if interrupted by signal

The fix follows the same RAII pattern used in vite_shared/src/header.rs for raw mode management and only impacts interactive dev servers where terminal corruption can occur.

[netlify]

✅ Deploy Preview for viteplus-preview canceled.

Name	Link
🔨 Latest commit	a751318
🔍 Latest deploy log	https://app.netlify.com/projects/viteplus-preview/deploys/69e1f6ceeab5ea0008954bfd

[Brooooooklyn]

@claude[agent]