### Summary of Changes
Fixes **#53** (*Fish shell integration panics with `inappropriate ioctl
for device`*).
#### 1. Fixed Non-TTY Stdin (`panic: inappropriate ioctl for device`) —
Fixes#53
- **Root Cause**: When executing `iris init fish | source` (or sourcing
shell configs), `os.Stdin` (FD 0) is connected to a pipe instead of a
TTY. Calling `term.MakeRaw()` on
a pipe returns `ENOTTY`.
- **Fix**: Guarded `term.MakeRaw()` with `term.IsTerminal()` checks
across `root/wrapper.go` and `root/root.go`. Added fallback to open and
use `/dev/tty` when `os.Stdin` is
not a terminal device.
- **Fish IPC Hooks**: Added `fish_preexec` and `fish_postexec` event
handlers to `iris init fish` to send `IRIS_CMD_START` / `IRIS_CMD_STOP`
IPC signals over `$IRIS_FD`.
#### 2. Fixed Shell Setup Order (Duplicate `fastfetch` / startup
executions) — Fixes#53
- **Root Cause**: `iris setup` appended the init script to the bottom of
shell configs (`config.fish`, `.zshrc`, `.bashrc`), causing pre-existing
interactive startup commands
to run twice.
- **Fix**: Updated `setupCmd` in `root/init.go` to **prepend** `# Iris
Autocomplete` to the top of shell configuration files.
#### 3. Fixed Terminal Exit Loop Handling — Relates to #50
- **Root Cause**: When typing `exit` in the wrapped shell, Linux PTY
returns `syscall.EIO` (`Input/output error`) on `ptmx.Read()` rather
than `io.EOF`. `runWrapper()` was
ignoring non-EOF errors and looping indefinitely without restoring the
terminal or calling `os.Exit(0)`.
- **Fix**: Updated the `ptmx.Read` error handler in `root/wrapper.go` to
handle `syscall.EIO` and exit cleanly.
---
### Issues Addressed
- Closes#53
- Relates to #50, #55
---
### Verification Tested
- [x] Verified `iris setup fish` / `iris init fish | source` initializes
without `ioctl` panic.
- [x] Verified typing `exit` in Fish, Zsh, and Bash terminates IRIS
cleanly and restores standard terminal state.
- [x] Ran `go test ./...` — all tests pass.
---------
Co-authored-by: verse91 <versedev.store@proton.me>
Co-authored-by: VERSE <sunnyone0901@gmail.com>
