installer: support legacy source tree while enforcing ananke outputs

scripts/install.sh

@@ -617,6 +617,113 @@ retire_legacy_hecate_install() {
   rm -rf /var/lib/hecate
 }
 
+resolve_build_target() {
+  if [[ -d "${REPO_DIR}/cmd/ananke" ]]; then
+    echo "./cmd/ananke"
+    return 0
+  fi
+  if [[ -d "${REPO_DIR}/cmd/hecate" ]]; then
+    echo "./cmd/hecate"
+    return 0
+  fi
+  return 1
+}
+
+install_config_template() {
+  local template="$1"
+  local dest="$2"
+  local src modern legacy
+
+  modern="configs/ananke.${template}.yaml"
+  case "${template}" in
+    coordinator)
+      legacy="configs/hecate.titan-db.yaml"
+      ;;
+    peer)
+      legacy="configs/hecate.tethys.yaml"
+      ;;
+    example)
+      legacy="configs/hecate.example.yaml"
+      ;;
+    *)
+      echo "[install] unknown config template key: ${template}" >&2
+      return 1
+      ;;
+  esac
+
+  if [[ -f "${modern}" ]]; then
+    src="${modern}"
+    install -m 0640 "${src}" "${dest}"
+    return 0
+  fi
+
+  if [[ -f "${legacy}" ]]; then
+    src="$(mktemp)"
+    legacy_path_rewrite "${legacy}" "${src}"
+    install -m 0640 "${src}" "${dest}"
+    rm -f "${src}"
+    return 0
+  fi
+
+  echo "[install] missing both modern and legacy config templates for '${template}'." >&2
+  return 1
+}
+
+install_systemd_units() {
+  local unit
+  local tmp
+
+  for unit in service bootstrap.service update.service update.timer; do
+    local modern_src="deploy/systemd/ananke.${unit}"
+    local legacy_src="deploy/systemd/hecate.${unit}"
+    local target="${SYSTEMD_DIR}/ananke.${unit}"
+
+    if [[ -f "${modern_src}" ]]; then
+      install -m 0644 "${modern_src}" "${target}"
+      continue
+    fi
+
+    if [[ -f "${legacy_src}" ]]; then
+      tmp="$(mktemp)"
+      legacy_path_rewrite "${legacy_src}" "${tmp}"
+      install -m 0644 "${tmp}" "${target}"
+      rm -f "${tmp}"
+      continue
+    fi
+
+    echo "[install] missing both modern and legacy systemd unit sources for ananke.${unit}" >&2
+    return 1
+  done
+}
+
+install_self_update_script() {
+  local modern_src="scripts/ananke-self-update.sh"
+  local legacy_src="scripts/hecate-self-update.sh"
+  local target="${LIB_DIR}/ananke-self-update.sh"
+  local tmp
+
+  if [[ -f "${modern_src}" ]]; then
+    install -m 0755 "${modern_src}" "${target}"
+    return 0
+  fi
+
+  if [[ -f "${legacy_src}" ]]; then
+    tmp="$(mktemp)"
+    legacy_path_rewrite "${legacy_src}" "${tmp}"
+    sed -Ei \
+      -e 's/HECATE_/ANANKE_/g' \
+      -e 's/hecate-self-update/ananke-self-update/g' \
+      -e 's#bstein/hecate\.git#bstein/ananke.git#g' \
+      "${tmp}"
+    install -m 0755 "${tmp}" "${target}"
+    rm -f "${tmp}"
+    return 0
+  fi
+
+  echo "[install] missing both modern and legacy self-update scripts." >&2
+  return 1
+}
+
 configure_nut() {
   if [[ "${MANAGE_NUT}" != "1" ]]; then
     echo "[install] skipping NUT configuration (ANANKE_MANAGE_NUT=${MANAGE_NUT})"
@@ -683,7 +790,15 @@ migrate_legacy_hecate_install
 echo "[install] building ananke"
 cd "${REPO_DIR}"
 mkdir -p dist
-go build -o dist/ananke ./cmd/ananke
+BUILD_TARGET="$(resolve_build_target || true)"
+if [[ -z "${BUILD_TARGET}" ]]; then
+  echo "[install] unable to find build target (expected cmd/ananke or cmd/hecate)." >&2
+  exit 1
+fi
+if [[ "${BUILD_TARGET}" != "./cmd/ananke" ]]; then
+  echo "[install] build target fallback: ${BUILD_TARGET}"
+fi
+go build -o dist/ananke "${BUILD_TARGET}"
 
 echo "[install] installing binary"
 install -d -m 0755 "${BIN_DIR}"
@@ -697,15 +812,15 @@ install -d -m 0755 "${LIB_DIR}"
 if [[ -n "${FORCE_CONFIG_TEMPLATE}" ]]; then
   case "${FORCE_CONFIG_TEMPLATE}" in
     coordinator)
-      install -m 0640 configs/ananke.titan-db.yaml "${CONF_DIR}/ananke.yaml"
+      install_config_template coordinator "${CONF_DIR}/ananke.yaml"
       echo "[install] forced config template: coordinator"
       ;;
     peer)
-      install -m 0640 configs/ananke.tethys.yaml "${CONF_DIR}/ananke.yaml"
+      install_config_template peer "${CONF_DIR}/ananke.yaml"
       echo "[install] forced config template: peer"
       ;;
     example)
-      install -m 0640 configs/ananke.example.yaml "${CONF_DIR}/ananke.yaml"
+      install_config_template example "${CONF_DIR}/ananke.yaml"
       echo "[install] forced config template: example"
       ;;
     *)
@@ -714,7 +829,7 @@ if [[ -n "${FORCE_CONFIG_TEMPLATE}" ]]; then
       ;;
   esac
 elif [[ ! -f "${CONF_DIR}/ananke.yaml" ]]; then
-  install -m 0640 configs/ananke.example.yaml "${CONF_DIR}/ananke.yaml"
+  install_config_template example "${CONF_DIR}/ananke.yaml"
   echo "[install] wrote default config to ${CONF_DIR}/ananke.yaml"
 else
   echo "[install] keeping existing config at ${CONF_DIR}/ananke.yaml"
@@ -724,11 +839,8 @@ ensure_ananke_ssh_identity
 ensure_ananke_kubeconfig
 
 echo "[install] installing systemd units"
-install -m 0644 deploy/systemd/ananke.service "${SYSTEMD_DIR}/ananke.service"
-install -m 0644 deploy/systemd/ananke-bootstrap.service "${SYSTEMD_DIR}/ananke-bootstrap.service"
-install -m 0644 deploy/systemd/ananke-update.service "${SYSTEMD_DIR}/ananke-update.service"
-install -m 0644 deploy/systemd/ananke-update.timer "${SYSTEMD_DIR}/ananke-update.timer"
-install -m 0755 scripts/ananke-self-update.sh "${LIB_DIR}/ananke-self-update.sh"
+install_systemd_units
+install_self_update_script
 
 resolve_nut_ups_name
 configure_nut