fix(rice-switch): cancel on Esc instead of switching and logging out

bin/rice-switch

@@ -176,6 +176,10 @@ switch_to() {
         return 0
     fi
 
+    # An empty name would resolve to rices/ itself and pass the check below
+    if [[ ! "$target" =~ ^[A-Za-z0-9][A-Za-z0-9._-]*$ ]]; then
+        die "Invalid rice name '$target'"
+    fi
     local target_dir="$DOTFILES_DIR/rices/$target"
     if [[ ! -d "$target_dir" ]]; then
         die "Rice '$target' not found in $DOTFILES_DIR/rices/"
@@ -261,6 +265,9 @@ done
 
 if [ -z "$ACTION" ]; then
     ACTION="$(gui_menu)"
+    # gui_menu runs in a subshell, so its `exit 0` on Esc only ends that subshell
+    # and leaves ACTION empty: nothing was chosen, so stop here.
+    [[ -n "$ACTION" ]] || exit 0
 fi
 
 switch_to "$ACTION"

tests/rice-switch.sh

@@ -0,0 +1,72 @@
+#!/usr/bin/env bash
+# Tests for bin/rice-switch menu handling (always with --dry-run):
+# 1. Esc in the menu (rofi exits 1) does nothing and exits 0.
+# 2. Closing the menu without a row (rofi exits 0, prints nothing) does the same.
+# 3. A chosen row still reaches the switch.
+# 4. Empty or path-like rice names are rejected.
+set -euo pipefail
+
+REPO="$(cd "$(dirname "$0")/.." && pwd)"
+TMP="$(mktemp -d)"
+trap 'rm -rf "$TMP"' EXIT
+
+fail() {
+    echo "FAIL: $*" >&2
+    exit 1
+}
+
+export HOME="$TMP/home"
+mkdir -p "$HOME/.config/rofi"
+: >"$HOME/.config/rofi/rice-switch.rasi"
+: >"$HOME/.config/rofi/display.rasi"
+echo end4 >"$HOME/.config/.current_rice"
+
+STUBS="$TMP/bin"
+mkdir -p "$STUBS"
+# rofi: MOCK_ROFI_EXIT is its status, MOCK_ROFI_OUT what it prints
+cat >"$STUBS/rofi" <<'EOF'
+#!/usr/bin/env bash
+cat >/dev/null
+printf '%s' "${MOCK_ROFI_OUT:-}"
+exit "${MOCK_ROFI_EXIT:-0}"
+EOF
+for cmd in notify-send hyprland niri; do
+    printf '#!/usr/bin/env bash\nexit 0\n' >"$STUBS/$cmd"
+done
+chmod +x "$STUBS"/*
+export PATH="$STUBS:$PATH"
+
+run() {
+    set +e
+    out="$(bash "$REPO/bin/rice-switch" -n "$@" 2>&1)"
+    status=$?
+    set -e
+}
+
+# --- 1 + 2: cancelled menu -----------------------------------------------------
+
+for case in "esc:1:" "empty:0:"; do
+    IFS=: read -r name code printed <<<"$case"
+    MOCK_ROFI_EXIT="$code" MOCK_ROFI_OUT="$printed" run
+    [[ $status -eq 0 ]] || fail "$name: exit $status, expected 0: $out"
+    [[ -z "$out" ]] || fail "$name: expected no output, the switch ran: $out"
+done
+echo "ok: Esc and an empty choice cancel without switching"
+
+# --- 3: a chosen row -----------------------------------------------------------
+
+# rofi prints the chosen row, which is the rice's DISPLAY_NAME
+iris_row="$(grep -m1 '^DISPLAY_NAME=' "$REPO/rices/iris/rice.conf" | cut -d= -f2- | tr -d '"')"
+MOCK_ROFI_EXIT=0 MOCK_ROFI_OUT="$iris_row" run
+# CI has no niri session file; reaching that check still proves iris was chosen
+[[ "$out" == *"dry run for 'iris'"* || "$out" == *"'niri.desktop' not found"* ]] \
+    || fail "choosing iris did not reach the switch: $out"
+echo "ok: a chosen row reaches the switch"
+
+# --- 4: invalid names ------------------------------------------------------------
+
+for bad in "../end4" "." "end4/../iris" "-x"; do
+    run "$bad"
+    [[ $status -ne 0 && "$out" == *"Invalid rice name"* ]] || fail "'$bad' not rejected: $out"
+done
+echo "ok: path-like rice names are rejected"