285 lines
12 KiB
Rust
285 lines
12 KiB
Rust
use dbx_core::connection::AppState;
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use dbx_core::models::connection::{ConnectionConfig, DatabaseType};
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use dbx_core::storage::Storage;
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use dbx_core::transfer::{
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drop_backup_tables, rename_tables_to_backup, transfer_table, TransferContent, TransferMode,
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TransferOwnershipPolicy, TransferRequest, TransferTableNameCase,
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};
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use std::collections::HashMap;
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use std::sync::Arc;
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use std::time::Duration;
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fn live_sqlserver_config(id: &str, database: &str) -> ConnectionConfig {
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ConnectionConfig {
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docs_notes_path: None,
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id: id.to_string(),
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name: id.to_string(),
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note: String::new(),
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db_type: DatabaseType::SqlServer,
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driver_profile: None,
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driver_label: None,
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url_params: None,
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agent_java_options: Vec::new(),
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host: std::env::var("DBX_LIVE_SQLSERVER_HOST").unwrap_or_else(|_| "127.0.0.1".to_string()),
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port: std::env::var("DBX_LIVE_SQLSERVER_PORT").ok().and_then(|value| value.parse().ok()).unwrap_or(1433),
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username: std::env::var("DBX_LIVE_SQLSERVER_USER").unwrap_or_else(|_| "sa".to_string()),
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password: std::env::var("DBX_LIVE_SQLSERVER_PASSWORD").expect("DBX_LIVE_SQLSERVER_PASSWORD"),
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database: Some(database.to_string()),
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default_schema: None,
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visible_databases: None,
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visible_database_patterns: None,
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visible_schemas: None,
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attached_databases: Vec::new(),
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init_script: None,
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color: None,
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transport_layers: Vec::new(),
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connect_timeout_secs: 15,
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query_timeout_secs: 30,
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idle_timeout_secs: 60,
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keepalive_interval_secs: 0,
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ssl: false,
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ca_cert_path: String::new(),
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client_cert_path: String::new(),
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client_key_path: String::new(),
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sysdba: false,
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oracle_connection_type: None,
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connection_string: None,
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redis_connection_mode: None,
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redis_sentinel_master: String::new(),
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redis_sentinel_nodes: String::new(),
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redis_sentinel_username: String::new(),
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redis_sentinel_password: String::new(),
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redis_sentinel_tls: false,
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redis_cluster_nodes: String::new(),
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redis_key_separator: dbx_core::models::connection::default_redis_key_separator(),
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redis_scan_page_size: None,
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redis_database_aliases: Default::default(),
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redis_key_templates: Vec::new(),
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etcd_endpoints: String::new(),
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gbase_server: String::new(),
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informix_server: String::new(),
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external_config: None,
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jdbc_driver_class: None,
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jdbc_driver_paths: Vec::new(),
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one_time: false,
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save_password: true,
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read_only: false,
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is_production: false,
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production_databases: vec![],
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show_system_schemas: false,
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database_info: None,
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}
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}
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async fn sqlserver_env() -> (String, u16, String, String) {
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let host = std::env::var("DBX_LIVE_SQLSERVER_HOST").unwrap_or_else(|_| "127.0.0.1".to_string());
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let port = std::env::var("DBX_LIVE_SQLSERVER_PORT").ok().and_then(|value| value.parse().ok()).unwrap_or(1433);
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let user = std::env::var("DBX_LIVE_SQLSERVER_USER").unwrap_or_else(|_| "sa".to_string());
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let password = std::env::var("DBX_LIVE_SQLSERVER_PASSWORD").expect("DBX_LIVE_SQLSERVER_PASSWORD");
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(host, port, user, password)
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}
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async fn sqlserver_connect(database: &str) -> dbx_core::db::sqlserver::SqlServerClient {
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let (host, port, user, password) = sqlserver_env().await;
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dbx_core::db::sqlserver::connect(&host, port, &user, &password, Some(database), None, Duration::from_secs(20))
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.await
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.expect("connect SQL Server")
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}
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/// Whether a schema-scoped object with `name` still exists on `table`.
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async fn sqlserver_object_on_table_exists(
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client: &mut dbx_core::db::sqlserver::SqlServerClient,
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table: &str,
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name: &str,
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) -> bool {
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let sql = format!(
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"SELECT CASE WHEN EXISTS ( \
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SELECT 1 FROM sys.objects o WHERE o.name = N'{name}' AND o.parent_object_id = OBJECT_ID(N'dbo.{table}') \
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UNION ALL \
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SELECT 1 FROM sys.indexes i WHERE i.name = N'{name}' AND i.object_id = OBJECT_ID(N'dbo.{table}') \
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) THEN 1 ELSE 0 END",
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name = name.replace('\'', "''"),
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table = table.replace('\'', "''"),
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);
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let result = dbx_core::db::sqlserver::execute_query(client, &sql).await.expect("query object existence");
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result.rows.first().and_then(|row| row.first()).and_then(|v| v.as_i64()).map(|n| n == 1).unwrap_or(false)
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}
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#[tokio::test]
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#[ignore = "requires DBX_LIVE_SQLSERVER_HOST/PORT/USER/PASSWORD pointing at SQL Server"]
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async fn live_sqlserver_transfer_rebuild_releases_constraint_and_index_names() {
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let suffix = uuid::Uuid::new_v4().simple().to_string();
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let source_db = format!("dbx_rebuild_src_{}", &suffix[..12]);
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let target_db = format!("dbx_rebuild_dst_{}", &suffix[..12]);
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let connection_id = format!("live-sqlserver-rebuild-{suffix}");
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// Create both databases and populate source + target with same-named constraints.
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let mut master = sqlserver_connect("master").await;
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dbx_core::db::sqlserver::execute_batch(
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&mut master,
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&format!("CREATE DATABASE [{source_db}]; CREATE DATABASE [{target_db}];"),
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)
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.await
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.expect("create rebuild databases");
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let mut source_client = sqlserver_connect(&source_db).await;
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dbx_core::db::sqlserver::execute_batch(
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&mut source_client,
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"CREATE TABLE dbo.departments (id INT NOT NULL CONSTRAINT PK_departments PRIMARY KEY, name NVARCHAR(32)); \
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CREATE TABLE dbo.employees (id INT NOT NULL CONSTRAINT PK_employees PRIMARY KEY, dept_id INT NULL, \
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CONSTRAINT FK_emp_dept FOREIGN KEY (dept_id) REFERENCES dbo.departments(id)); \
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CREATE INDEX IX_emp_dept ON dbo.employees(dept_id); \
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INSERT INTO dbo.departments VALUES (10, N'Engineering'), (20, N'Sales'); \
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INSERT INTO dbo.employees VALUES (1, 10), (2, 20);",
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)
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.await
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.expect("create source tables");
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let mut target_client = sqlserver_connect(&target_db).await;
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dbx_core::db::sqlserver::execute_batch(
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&mut target_client,
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"CREATE TABLE dbo.departments (id INT NOT NULL CONSTRAINT PK_departments PRIMARY KEY, name NVARCHAR(32)); \
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CREATE TABLE dbo.employees (id INT NOT NULL CONSTRAINT PK_employees PRIMARY KEY, dept_id INT NULL, \
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CONSTRAINT FK_emp_dept FOREIGN KEY (dept_id) REFERENCES dbo.departments(id)); \
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CREATE INDEX IX_emp_dept ON dbo.employees(dept_id); \
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INSERT INTO dbo.departments VALUES (99, N'Stale'); \
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INSERT INTO dbo.employees VALUES (98, 99);",
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)
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.await
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.expect("create target tables");
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let dir = std::env::temp_dir().join(format!("dbx-live-sqlserver-rebuild-{suffix}"));
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std::fs::create_dir_all(&dir).expect("create rebuild directory");
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let storage = Storage::open(&dir.join("storage.db")).await.expect("open rebuild storage");
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let state = Arc::new(AppState::new(storage));
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let config = live_sqlserver_config(&connection_id, &source_db);
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state.configs.write().await.insert(connection_id.clone(), config);
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let source_pool_key = state.get_or_create_pool(&connection_id, Some(&source_db)).await.expect("source pool");
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let target_pool_key = state.get_or_create_pool(&connection_id, Some(&target_db)).await.expect("target pool");
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let request = TransferRequest {
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transfer_id: format!("live-sqlserver-rebuild-{suffix}"),
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source_connection_id: connection_id.clone(),
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source_database: source_db.clone(),
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source_schema: "dbo".to_string(),
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source_catalog: None,
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target_connection_id: connection_id.clone(),
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target_database: target_db.clone(),
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target_schema: "dbo".to_string(),
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target_catalog: None,
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tables: vec!["departments".to_string(), "employees".to_string()],
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create_table: true,
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drop_target_before_create: true,
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drop_target_confirmed: true,
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content: TransferContent::default(),
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objects: Vec::new(),
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mode: TransferMode::Append,
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target_table_name_case: TransferTableNameCase::Preserve,
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quote_target_column_names: true,
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ownership_policy: TransferOwnershipPolicy::Preserve,
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batch_size: 10,
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};
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let test_result = async {
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let backup_names = rename_tables_to_backup(
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&state,
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&request,
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&request.tables,
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DatabaseType::SqlServer,
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&target_pool_key,
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|_| {},
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)
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.await?;
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assert_eq!(backup_names.len(), 2, "both preexisting targets must be backed up");
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// The pre-pass must have released every schema-unique constraint and index name
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// so the rebuilt tables can reuse the source DDL's names without colliding.
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for (table, name) in [
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("departments", "PK_departments"),
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("employees", "PK_employees"),
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("employees", "FK_emp_dept"),
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("employees", "IX_emp_dept"),
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] {
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assert!(
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!sqlserver_object_on_table_exists(&mut target_client, table, name).await,
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"{name} on {table} must have been released before rebuild"
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);
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}
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let mut pending_fk_alters: Vec<(String, String)> = Vec::new();
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for (i, table) in request.tables.iter().enumerate() {
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transfer_table(
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&state,
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&request,
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table,
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i,
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&DatabaseType::SqlServer,
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&DatabaseType::SqlServer,
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&source_pool_key,
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&target_pool_key,
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&HashMap::new(),
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&mut pending_fk_alters,
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Some(&backup_names),
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|_| {},
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)
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.await?;
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}
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// The rebuilt tables must have reclaimed the FK and index names — the names that
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// would otherwise collide with the backups. Primary keys are regenerated inline by
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// the source DDL (SQL Server auto-names them), so only their presence matters.
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for (table, name) in [("employees", "FK_emp_dept"), ("employees", "IX_emp_dept")] {
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assert!(
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sqlserver_object_on_table_exists(&mut target_client, table, name).await,
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"{name} on {table} must be rebuilt"
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);
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}
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for table in ["departments", "employees"] {
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let pk = dbx_core::db::sqlserver::execute_query(
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&mut target_client,
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&format!(
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"SELECT COUNT(*) FROM sys.key_constraints WHERE parent_object_id = OBJECT_ID('dbo.{table}') AND type = 'PK'"
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),
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)
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.await
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.expect("count primary key");
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assert_eq!(
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pk.rows.first().and_then(|r| r.first()).and_then(|v| v.as_i64()),
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Some(1),
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"{table} must have a primary key"
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);
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}
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// Stale target rows replaced by source data.
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let count = dbx_core::db::sqlserver::execute_query(
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&mut target_client,
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"SELECT CAST(COUNT(*) AS INT) FROM dbo.departments WHERE id IN (10,20)",
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)
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.await
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.expect("count rebuilt departments");
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assert_eq!(count.rows.first().and_then(|r| r.first()).and_then(|v| v.as_i64()), Some(2));
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// The rebuilt foreign key must still reject an orphan reference.
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let orphan = dbx_core::db::sqlserver::execute_query(&mut target_client, "INSERT INTO dbo.employees VALUES (7, 999)").await;
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assert!(orphan.is_err(), "rebuilt FK must reject a missing referenced department");
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drop_backup_tables(&state, &request, DatabaseType::SqlServer, &target_pool_key, &backup_names, &request.tables).await?;
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Ok::<_, String>(())
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}
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.await;
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// SQL Server refuses to drop a database with active connections (code 3702); the
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// state pools and setup clients still hold some. Force them all off first.
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let cleanup = dbx_core::db::sqlserver::execute_batch(
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&mut master,
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&format!(
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"ALTER DATABASE [{source_db}] SET SINGLE_USER WITH ROLLBACK IMMEDIATE; DROP DATABASE [{source_db}]; \
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ALTER DATABASE [{target_db}] SET SINGLE_USER WITH ROLLBACK IMMEDIATE; DROP DATABASE [{target_db}];"
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),
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)
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.await;
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let _ = std::fs::remove_dir_all(dir);
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cleanup.expect("drop rebuild databases");
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test_result.unwrap();
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}
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