Import AITURK IDE 1.0.0-beta.1 from Hermes 63279301; preserve MIT license

ui-tui/packages/hermes-ink/src/utils/env.ts

@@ -0,0 +1,66 @@
+type TerminalName = string | null
+
+function detectTerminal(): TerminalName {
+  if (process.env.CURSOR_TRACE_ID) {
+    return 'cursor'
+  }
+
+  if (process.env.TERM === 'xterm-ghostty') {
+    return 'ghostty'
+  }
+
+  if (process.env.TERM?.includes('kitty')) {
+    return 'kitty'
+  }
+
+  if (process.env.TERM_PROGRAM) {
+    return process.env.TERM_PROGRAM
+  }
+
+  if (process.env.TMUX) {
+    return 'tmux'
+  }
+
+  if (process.env.STY) {
+    return 'screen'
+  }
+
+  if (process.env.KITTY_WINDOW_ID) {
+    return 'kitty'
+  }
+
+  if (process.env.WT_SESSION) {
+    return 'windows-terminal'
+  }
+
+  return process.env.TERM ?? null
+}
+
+export const env = {
+  terminal: detectTerminal()
+}
+
+// Terminals known to correctly implement OSC 52 clipboard writes
+// (ESC ] 52 ; c ; <b64> BEL/ST — osc() in ink/termio/osc.ts emits BEL
+// for most terminals and ST for kitty). When detected, setClipboard() skips the
+// native-tool safety net entirely — running wl-copy/xclip/pbcopy in
+// parallel with OSC 52 races the terminal's own clipboard write and can
+// corrupt it (e.g. wl-copy on Wayland holds the selection in a background
+// daemon; stacking two writes within ~30ms triggers a SIGTERM race).
+// Intentionally conservative: terminals with known flaky or disabled-by-
+// default OSC 52 (iTerm2 disables OSC 52 by default; Alacritty detection
+// is unreliable) are not on this list. Users on those terminals keep the
+// existing behaviour (native safety net fires alongside OSC 52).
+//
+// Lives here in utils/env.ts (rather than ink/terminal.ts) so that
+// ink/termio/osc.ts can import it without creating a circular dependency:
+// ink/terminal.ts already imports `link` from ink/termio/osc.ts.
+const OSC52_CAPABLE_TERMINALS = ['ghostty', 'kitty', 'WezTerm', 'windows-terminal', 'vscode']
+
+/** True if this terminal is known to correctly handle OSC 52 clipboard
+ *  writes, so setClipboard() can skip the native-tool safety net.
+ *  Accepts an optional terminal name for testability; defaults to the
+ *  module-level `env.terminal` detected at startup. */
+export function supportsOsc52Clipboard(terminal: string | null = env.terminal): boolean {
+  return OSC52_CAPABLE_TERMINALS.includes(terminal ?? '')
+}