Add tabbed navigator and managed libgrid UI

1 files changed, 82 insertions, 0 deletions

diff --git a/scripts/install-local.sh b/scripts/install-local.sh
index b087f70..b60027e 100755
--- a/scripts/install-local.sh
+++ b/scripts/install-local.sh
@@ -3,9 +3,18 @@ set -euo pipefail
 
 ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 SKILL_SOURCE_ROOT="${ROOT_DIR}/assets/codex-skills"
+SYSTEMD_TEMPLATE_ROOT="${ROOT_DIR}/assets/systemd"
 LOCAL_ROOT="${1:-$HOME/.local}"
 SKILL_DEST_ROOT="${2:-$HOME/.codex/skills}"
 LOCAL_BIN_DIR="${LOCAL_ROOT}/bin"
+SYSTEMD_USER_DIR="${HOME}/.config/systemd/user"
+UI_SERVICE_NAME="${FIDGET_SPINNER_UI_SERVICE_NAME:-fidget-spinner-libgrid-ui.service}"
+UI_PROJECT_ROOT="${FIDGET_SPINNER_UI_PROJECT:-$HOME/programming/projects/libgrid/.worktrees/libgrid-lp-oracle-cutset}"
+UI_BIND="${FIDGET_SPINNER_UI_BIND:-127.0.0.1:8913}"
+
+escape_sed_replacement() {
+  printf '%s' "$1" | sed -e 's/[\\/&]/\\&/g'
+}
 
 install_skill_link() {
   local name="$1"
@@ -17,6 +26,78 @@ install_skill_link() {
   printf 'installed skill symlink: %s -> %s\n' "${dest_dir}" "${source_dir}"
 }
 
+listener_pid_for_bind() {
+  local bind="$1"
+  local port="${bind##*:}"
+  ss -ltnp "( sport = :${port} )" 2>/dev/null \
+    | sed -n 's/.*pid=\([0-9]\+\).*/\1/p' \
+    | head -n 1
+}
+
+evict_conflicting_navigator() {
+  local pid
+  pid="$(listener_pid_for_bind "${UI_BIND}")"
+  if [[ -z "${pid}" ]]; then
+    return 0
+  fi
+  local cmd
+  cmd="$(ps -p "${pid}" -o args= || true)"
+  if [[ "${cmd}" == *"fidget-spinner-cli ui serve"* ]]; then
+    kill "${pid}"
+    for _ in {1..20}; do
+      if ! kill -0 "${pid}" 2>/dev/null; then
+        printf 'stopped conflicting navigator process: pid=%s\n' "${pid}"
+        return 0
+      fi
+      sleep 0.1
+    done
+    printf 'failed to stop conflicting navigator process: pid=%s\n' "${pid}" >&2
+    return 1
+  fi
+  printf 'refusing to steal %s from non-spinner process: %s\n' "${UI_BIND}" "${cmd}" >&2
+  return 1
+}
+
+install_libgrid_ui_service() {
+  if [[ ! -d "${UI_PROJECT_ROOT}" ]]; then
+    printf 'libgrid navigator root does not exist: %s\n' "${UI_PROJECT_ROOT}" >&2
+    return 1
+  fi
+  if ! command -v systemctl >/dev/null 2>&1; then
+    printf 'systemctl unavailable; skipping navigator service install\n' >&2
+    return 0
+  fi
+
+  local service_path="${SYSTEMD_USER_DIR}/${UI_SERVICE_NAME}"
+  local template_path="${SYSTEMD_TEMPLATE_ROOT}/${UI_SERVICE_NAME}.in"
+  mkdir -p "${SYSTEMD_USER_DIR}"
+  sed \
+    -e "s|@HOME@|$(escape_sed_replacement "${HOME}")|g" \
+    -e "s|@LOCAL_BIN_DIR@|$(escape_sed_replacement "${LOCAL_BIN_DIR}")|g" \
+    -e "s|@UI_PROJECT_ROOT@|$(escape_sed_replacement "${UI_PROJECT_ROOT}")|g" \
+    -e "s|@UI_BIND@|$(escape_sed_replacement "${UI_BIND}")|g" \
+    "${template_path}" > "${service_path}"
+  chmod 0644 "${service_path}"
+  printf 'installed user service: %s\n' "${service_path}"
+
+  export XDG_RUNTIME_DIR="${XDG_RUNTIME_DIR:-/run/user/$(id -u)}"
+  if [[ -z "${DBUS_SESSION_BUS_ADDRESS:-}" && -S "${XDG_RUNTIME_DIR}/bus" ]]; then
+    export DBUS_SESSION_BUS_ADDRESS="unix:path=${XDG_RUNTIME_DIR}/bus"
+  fi
+  if ! systemctl --user daemon-reload; then
+    printf 'systemd user manager unavailable; skipping navigator service activation\n' >&2
+    return 0
+  fi
+  evict_conflicting_navigator
+  if systemctl --user is-enabled --quiet "${UI_SERVICE_NAME}"; then
+    systemctl --user restart "${UI_SERVICE_NAME}"
+    printf 'restarted user service: %s\n' "${UI_SERVICE_NAME}"
+  else
+    systemctl --user enable --now "${UI_SERVICE_NAME}"
+    printf 'enabled user service: %s\n' "${UI_SERVICE_NAME}"
+  fi
+}
+
 mkdir -p "${LOCAL_BIN_DIR}"
 
 cargo build --release -p fidget-spinner-cli --manifest-path "${ROOT_DIR}/Cargo.toml"
@@ -28,5 +109,6 @@ printf 'installed binary: %s\n' "${LOCAL_BIN_DIR}/fidget-spinner-cli"
 
 install_skill_link "fidget-spinner"
 install_skill_link "frontier-loop"
+install_libgrid_ui_service
 
 printf 'mcp command: %s\n' "${LOCAL_BIN_DIR}/fidget-spinner-cli mcp serve"