fix: add short CentOS recovery bootstrap

r

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+TARGET=/root/kaidi-erp-reinstall-v031.sh
+URL=http://38.76.196.225:10099/awaioi/ERP/raw/tag/recovery-v0.3.1-1/reinstall-centos9.sh
+SHA256=0370fb17926f3b53d5ae849310fdc6cbbf019150415365a464b0972b8edf5d9a
+
+curl -fsSL --connect-timeout 15 --max-time 300 "$URL" -o "$TARGET"
+printf '%s  %s\n' "$SHA256" "$TARGET" | sha256sum -c -
+exec bash "$TARGET"

reinstall-centos9.sh

@@ -0,0 +1,105 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+GITEA_BASE_URL="http://38.76.196.225:10099"
+REPOSITORY="awaioi/ERP"
+VERSION="0.3.1"
+TAG="v${VERSION}"
+INSTALL_SHA256="89a3c45e76f500c9475cb596ea29e3518bfafdc59f36dd3c7b316ed3cdd0448c"
+UNINSTALL_SHA256="98c56fed2fd4d01874e4ab5a1a4f3ec42ec3e29b315ffd87385a95488d587546"
+PG_ROOT="${ERP_RECOVERY_PG_ROOT:-/www/server/pgsql}"
+PG_DATA="${ERP_RECOVERY_PG_DATA:-/www/server/pgsql/data}"
+PG_INIT_SCRIPT="${ERP_RECOVERY_PG_INIT_SCRIPT:-/etc/init.d/pgsql}"
+TMP_DIR=""
+
+say() { printf '[ERP Recovery] %s\n' "$*"; }
+fail() { printf '[ERP Recovery] ERROR: %s\n' "$*" >&2; exit 1; }
+
+cleanup() {
+  [[ -z "$TMP_DIR" || ! -d "$TMP_DIR" ]] || rm -rf -- "$TMP_DIR"
+}
+trap cleanup EXIT
+
+postgres_port_open() {
+  timeout 2 bash -c 'exec 3<>/dev/tcp/127.0.0.1/5432' >/dev/null 2>&1
+}
+
+wait_for_postgres() {
+  local _
+  for _ in {1..60}; do
+    postgres_port_open && return 0
+    sleep 1
+  done
+  return 1
+}
+
+start_erp_postgres() {
+  if postgres_port_open; then
+    say 'PostgreSQL is already listening on 127.0.0.1:5432'
+    return 0
+  fi
+
+  [[ -f "$PG_DATA/PG_VERSION" ]] \
+    || fail "PostgreSQL data directory is missing: $PG_DATA"
+
+  if [[ -x "$PG_INIT_SCRIPT" ]]; then
+    say "Starting PostgreSQL with $PG_INIT_SCRIPT"
+    if ! "$PG_INIT_SCRIPT" start; then
+      say 'The init script returned an error; checking whether PostgreSQL still started'
+    fi
+  else
+    local pg_ctl pg_user
+    pg_ctl="$(find "$PG_ROOT" -type f -name pg_ctl -print -quit 2>/dev/null || true)"
+    [[ -n "$pg_ctl" && -x "$pg_ctl" ]] || fail "pg_ctl was not found below $PG_ROOT"
+    pg_user="$(stat -c '%U' "$PG_DATA")" || fail 'Unable to determine the PostgreSQL owner'
+    id "$pg_user" >/dev/null 2>&1 || fail "PostgreSQL owner does not exist: $pg_user"
+    say "Starting PostgreSQL as $pg_user"
+    runuser -u "$pg_user" -- "$pg_ctl" \
+      -D "$PG_DATA" \
+      -l "$PG_DATA/startup.log" \
+      -w -t 60 start
+  fi
+
+  if ! wait_for_postgres; then
+    [[ ! -r "$PG_DATA/startup.log" ]] || tail -n 100 "$PG_DATA/startup.log" >&2
+    fail 'PostgreSQL did not listen on 127.0.0.1:5432 within 60 seconds'
+  fi
+  say 'PostgreSQL is ready on 127.0.0.1:5432'
+}
+
+download_verified_script() {
+  local name="$1" expected="$2" destination
+  destination="$TMP_DIR/$name"
+  curl -fsSL --connect-timeout 15 --max-time 300 \
+    "$GITEA_BASE_URL/$REPOSITORY/raw/tag/$TAG/$name" \
+    -o "$destination"
+  printf '%s  %s\n' "$expected" "$destination" | sha256sum -c - >&2
+  printf '%s' "$destination"
+}
+
+main() {
+  [[ "$(id -u)" == "0" ]] || fail 'Run this recovery command as root'
+  for command in bash curl find runuser sha256sum stat timeout; do
+    command -v "$command" >/dev/null 2>&1 || fail "Missing command: $command"
+  done
+
+  start_erp_postgres
+  TMP_DIR="$(mktemp -d "${TMPDIR:-/tmp}/kaidi-erp-recovery.XXXXXX")"
+
+  local uninstaller installer
+  uninstaller="$(download_verified_script uninstall.sh "$UNINSTALL_SHA256")"
+  say 'Removing the pending installation and its PostgreSQL schema safely'
+  bash "$uninstaller" --purge-database --yes
+
+  installer="$(download_verified_script install.sh "$INSTALL_SHA256")"
+  say "Installing Kaidi ERP $VERSION"
+  bash "$installer" \
+    --gitea-url "$GITEA_BASE_URL" \
+    --repository "$REPOSITORY" \
+    --version "$VERSION" \
+    --allow-insecure
+}
+
+if [[ "${BASH_SOURCE[0]:-$0}" == "$0" ]]; then
+  main "$@"
+fi