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claude-print/notes/bf-rw7.md
jedarden 5f4910a879 Close bead bf-rw7: Phase 2 Hook Installer + PTY Spawner complete 
All Phase 2 deliverables (hook.rs, pty.rs, --no-inherit-hooks, mock-claude
fixture, test_pty_spawns_tty) were implemented in prior commits. All 14 unit
tests and the integration test pass. This commit records the bead close.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Bead-Id: bf-rw7
2026-06-08 09:11:07 -04:00

1.4 KiB
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Bead bf-rw7: Phase 2 — Hook Installer + PTY Spawner

Phase 2 was fully implemented in prior commits on this branch. This note records the completed state for bead bf-rw7.

Deliverables (all in prior commits)

hook.rs — HookInstaller (commit 1ff7715):

  • Creates a temp dir via tempfile::TempDir
  • Writes settings.json with a Stop hook entry pointing to hook.sh
  • Writes hook.sh that echoes stop to the FIFO and exits
  • Creates a named pipe (mkfifo equivalent) via nix::unistd::mkfifo

pty.rs — PtySpawner (commits 4a38e8f, dcbdb8c, a1e74b5):

  • openpty via nix::pty::openpty
  • fork via nix::unistd::fork
  • Child: login_tty, execvp with the target binary
  • Parent: TIOCSWINSZ window-size propagation, I/O relay, signal forwarding, waitpid

CLI — --no-inherit-hooks flag (commit 17c35f4):

  • Added to src/cli.rs via clap derive

mock-claude fixture — test-fixtures/mock-claude/ (commit 17c35f4):

  • Workspace member binary that checks isatty(STDIN_FILENO), writes stop\n to its FIFO argument, and exits 0 if stdin is a TTY (exits 1 otherwise)

Integration test — tests/pty_integration.rs (commit 17c35f4):

  • test_pty_spawns_tty exercises HookInstaller + PtySpawner end-to-end

Acceptance verified

cargo test test_pty_spawns_tty
...
test test_pty_spawns_tty ... ok

All 14 unit tests and 1 integration test pass.