orca/src/shared/shell-process-detection.ts

42 lines
1.7 KiB
TypeScript

// Why: shared between the runtime (dispatch guard, tui-idle fallback) and the
// renderer (agent-ready-wait, new-workspace). A bare shell is the negative
// signal for "is an agent running" because it garbles injected preambles.
const SHELL_NAMES = new Set(
'|bash|zsh|sh|fish|cmd|cmd.exe|powershell|powershell.exe|pwsh|pwsh.exe|nu'.split('|')
)
const WINDOWS_PROCESS_EXTENSION_RE = /\.(?:exe|cmd|bat|ps1)$/i
export function isShellProcess(processName: string): boolean {
const normalized = processName
.trim()
.replace(/^["']|["']$/g, '')
.toLowerCase()
const basename = normalized.split(/[\\/]/).pop() ?? normalized
// Why: Windows node-pty reports Git Bash and similar shells as `bash.exe`;
// those still need the same shell-safe handling as their POSIX basenames.
const basenameWithoutWindowsExtension = basename.replace(WINDOWS_PROCESS_EXTENSION_RE, '')
return (
SHELL_NAMES.has(normalized) ||
SHELL_NAMES.has(basename) ||
SHELL_NAMES.has(basenameWithoutWindowsExtension)
)
}
// Why: a ConPTY-side buffer clear cannot reach PSReadLine's cached cursor
// row, so the first Enter after a terminal clear still repaints the prompt at
// the stale row. Only the PowerShell family binds Ctrl+L (form feed) to a
// full prompt repaint, so the post-clear nudge must stay scoped to it.
const POWERSHELL_NAMES = new Set(['powershell', 'pwsh'])
export function isPowerShellProcess(processName: string | null | undefined): boolean {
if (!processName) {
return false
}
const normalized = processName
.trim()
.replace(/^["']|["']$/g, '')
.toLowerCase()
const basename = normalized.split(/[\\/]/).pop() ?? normalized
return POWERSHELL_NAMES.has(basename.replace(WINDOWS_PROCESS_EXTENSION_RE, ''))
}