fix(install): prompt via /dev/tty so 'curl | bash' is interactive

- prompts (location, OpenCode activation, web UI service, collision strategy) now read from the controlling terminal, not stdin
- have_tty()/tty_read() helpers; all read sites routed through tty_read
- previously 'curl | bash' had no TTY on stdin, so every prompt was silently skipped
- README: note the one-liner is interactive (and falls back to safe defaults in CI)

README.md

@@ -144,6 +144,8 @@ The installer is **all-in-one**: if OpenCode isn't already installed, it bootstr
 curl -fsSL https://git.lohmar.co.uk/cclohmar/NewOpenAgents/raw/branch/main/install.sh | bash
 ```
 
+Even though the script arrives over a pipe, it is **interactive**: it reads your answers from the terminal (`/dev/tty`). In a non-terminal context (CI), it runs with safe defaults instead of prompting.
+
 ### Or clone, then install (recommended for updates)
 
 ```bash

install.sh

@@ -71,6 +71,24 @@ error()   { printf "${RED}✗${NC} %s\n" "$1" >&2; }
 step()    { printf "\n${MAGENTA}${BOLD}▶${NC} %s\n\n" "$1"; }
 die()     { error "$1"; exit 1; }
 
+# Prompting — works even under `curl … | bash`, where stdin is the script pipe.
+# We prompt on the controlling terminal instead of relying on stdin.
+have_tty() {
+    [ -t 1 ] || return 1
+    [ -t 0 ] && return 0
+    [ -r /dev/tty ]
+}
+
+tty_read() {
+    local __var="$1" __val=""
+    if [ -t 0 ] || [ ! -r /dev/tty ]; then
+        read -r __val || true
+    else
+        read -r __val </dev/tty || true
+    fi
+    printf -v "$__var" '%s' "$__val"
+}
+
 print_header() {
     printf "${CYAN}${BOLD}"
     cat <<'BANNER'
@@ -230,9 +248,9 @@ activate_opencode() {
         info "Add it to your shell profile:  export PATH=\"${OPENCODE_BIN_DIR}:\$PATH\""
     fi
 
-    if [ -t 0 ] && [ -t 1 ]; then
+    if have_tty; then
         printf "${BOLD}Make 'opencode' available now (symlink into /usr/local/bin)?${NC} [y/N]: "
-        ans=""; read -r ans || true
+        ans=""; tty_read ans
         case "$ans" in
             [Yy]*)
                 local sudo=""
@@ -271,10 +289,10 @@ ensure_opencode() {
         return 0
     fi
 
-    if [ "$OPENCODE_MODE" = "auto" ] && ! have_opencode && [ -t 0 ] && [ -t 1 ]; then
+    if [ "$OPENCODE_MODE" = "auto" ] && ! have_opencode && have_tty; then
         printf "${BOLD}OpenCode is not installed. Install it now?${NC} [Y/n]: "
         ans=""
-        read -r ans || true
+        tty_read ans
         case "$ans" in
             [Nn]*) info "Skipping OpenCode."; return 0 ;;
         esac
@@ -328,7 +346,7 @@ setup_service() {
 
     local interactive=0
     if [ "$SERVICE_MODE" = "auto" ]; then
-        if [ -t 0 ] && [ -t 1 ]; then
+        if have_tty; then
             interactive=1
         else
             return 0   # non-interactive: only set up the service when explicitly asked
@@ -337,7 +355,7 @@ setup_service() {
 
     if [ "$interactive" = 1 ]; then
         printf "\n${BOLD}Set up the OpenCode web UI as a systemd service?${NC} [y/N]: "
-        ans=""; read -r ans || true
+        ans=""; tty_read ans
         case "$ans" in [Yy]*) ;; *) info "Skipping the web UI service."; return 0 ;; esac
     fi
 
@@ -357,10 +375,10 @@ setup_service() {
     g="$(id -gn)"
 
     if [ "$interactive" = 1 ]; then
-        printf "  Bind address [%s]: " "$host"; v=""; read -r v || true; [ -n "$v" ] && host="$v"
-        printf "  Port [%s]: " "$port"; v=""; read -r v || true; [ -n "$v" ] && port="$v"
-        printf "  Working directory [%s]: " "$dir"; v=""; read -r v || true; [ -n "$v" ] && dir="$v"
-        printf "  Start now and enable on boot? [Y/n]: "; v=""; read -r v || true
+        printf "  Bind address [%s]: " "$host"; v=""; tty_read v; [ -n "$v" ] && host="$v"
+        printf "  Port [%s]: " "$port"; v=""; tty_read v; [ -n "$v" ] && port="$v"
+        printf "  Working directory [%s]: " "$dir"; v=""; tty_read v; [ -n "$v" ] && dir="$v"
+        printf "  Start now and enable on boot? [Y/n]: "; v=""; tty_read v
         case "$v" in [Nn]*) enable=0 ;; esac
     fi
 
@@ -395,7 +413,7 @@ UNIT
         cat "$unit"
         echo "------------------------------------------------------------"
         printf "Install to /etc/systemd/system/%s? [y/N]: " "$SERVICE_UNIT_NAME"
-        ans=""; read -r ans || true
+        ans=""; tty_read ans
         case "$ans" in
             [Yy]*) ;;
             *) rm -f "$unit"; info "Skipping the web UI service."; return 0 ;;
@@ -482,11 +500,11 @@ choose_location_interactive() {
     echo -e "  4)  Cancel"
     echo
     printf "Enter your choice [1-4]: "
-    read -r choice
+    tty_read choice
     case "$choice" in
         1) INSTALL_DIR="$(pwd)/.opencode" ;;
         2) INSTALL_DIR="$gp" ;;
-        3) printf "Enter installation path: "; read -r custom
+        3) printf "Enter installation path: "; tty_read custom
            [ -n "$custom" ] || die "No path entered"
            case "$custom" in "~"*) custom="${HOME}${custom#\~}" ;; esac
            INSTALL_DIR="$custom" ;;
@@ -504,7 +522,7 @@ resolve_install_dir() {
         global) INSTALL_DIR="$(global_path)" ;;
         custom) die "--install-dir requires a path" ;;
         *)
-            if [ -t 0 ] && [ -t 1 ]; then
+            if have_tty; then
                 choose_location_interactive
             else
                 INSTALL_DIR="$(pwd)/.opencode"
@@ -530,10 +548,10 @@ do_choose_strategy() {
     echo -e "  ${RED}4)${NC} Cancel"
     echo
     printf "Enter your choice [1-4]: "
-    read -r choice
+    tty_read choice
     case "$choice" in
         1) STRATEGY="skip" ;;
-        2) printf "Type 'yes' to confirm overwrite: "; read -r c
+        2) printf "Type 'yes' to confirm overwrite: "; tty_read c
            [ "$c" = "yes" ] || { info "Cancelled."; exit 0; }
            STRATEGY="overwrite" ;;
         3) STRATEGY="backup" ;;
@@ -585,7 +603,7 @@ perform_install() {
         elif [ "$ASSUME_YES" = 1 ]; then
             STRATEGY="skip"
             info "Non-interactive: existing items will be skipped"
-        elif [ -t 0 ] && [ -t 1 ]; then
+        elif have_tty; then
             do_choose_strategy
         else
             STRATEGY="skip"