mirror of https://github.com/go-gitea/gitea.git
Refactor db package and remove unnecessary `DumpTables` (#32930)
wxiaoguang
1 month ago
committed by
GitHub
parent
7580bd98c1
commit
1c9b022c4d
@ -0,0 +1,33 @@
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// Copyright 2024 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package db
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import "xorm.io/xorm/schemas"
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// DumpDatabase dumps all data from database according the special database SQL syntax to file system.
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func DumpDatabase(filePath, dbType string) error {
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var tbs []*schemas.Table
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for _, t := range registeredModels {
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t, err := xormEngine.TableInfo(t)
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if err != nil {
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return err
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}
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tbs = append(tbs, t)
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}
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type Version struct {
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ID int64 `xorm:"pk autoincr"`
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Version int64
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}
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t, err := xormEngine.TableInfo(&Version{})
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if err != nil {
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return err
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}
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tbs = append(tbs, t)
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if dbType != "" {
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return xormEngine.DumpTablesToFile(tbs, filePath, schemas.DBType(dbType))
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}
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return xormEngine.DumpTablesToFile(tbs, filePath)
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}
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@ -0,0 +1,34 @@
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// Copyright 2024 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package db
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import (
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"context"
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"time"
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"code.gitea.io/gitea/modules/log"
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"xorm.io/xorm/contexts"
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)
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type SlowQueryHook struct {
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Threshold time.Duration
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Logger log.Logger
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}
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var _ contexts.Hook = (*SlowQueryHook)(nil)
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func (*SlowQueryHook) BeforeProcess(c *contexts.ContextHook) (context.Context, error) {
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return c.Ctx, nil
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}
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func (h *SlowQueryHook) AfterProcess(c *contexts.ContextHook) error {
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if c.ExecuteTime >= h.Threshold {
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// 8 is the amount of skips passed to runtime.Caller, so that in the log the correct function
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// is being displayed (the function that ultimately wants to execute the query in the code)
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// instead of the function of the slow query hook being called.
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h.Logger.Log(8, log.WARN, "[Slow SQL Query] %s %v - %v", c.SQL, c.Args, c.ExecuteTime)
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}
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return nil
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}
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@ -0,0 +1,140 @@
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// Copyright 2024 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package db
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import (
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"context"
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"fmt"
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"strings"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"xorm.io/xorm"
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"xorm.io/xorm/names"
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)
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func init() {
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gonicNames := []string{"SSL", "UID"}
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for _, name := range gonicNames {
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names.LintGonicMapper[name] = true
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}
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}
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// newXORMEngine returns a new XORM engine from the configuration
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func newXORMEngine() (*xorm.Engine, error) {
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connStr, err := setting.DBConnStr()
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if err != nil {
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return nil, err
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}
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var engine *xorm.Engine
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if setting.Database.Type.IsPostgreSQL() && len(setting.Database.Schema) > 0 {
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// OK whilst we sort out our schema issues - create a schema aware postgres
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registerPostgresSchemaDriver()
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engine, err = xorm.NewEngine("postgresschema", connStr)
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} else {
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engine, err = xorm.NewEngine(setting.Database.Type.String(), connStr)
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}
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if err != nil {
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return nil, err
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}
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if setting.Database.Type == "mysql" {
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engine.Dialect().SetParams(map[string]string{"rowFormat": "DYNAMIC"})
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} else if setting.Database.Type == "mssql" {
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engine.Dialect().SetParams(map[string]string{"DEFAULT_VARCHAR": "nvarchar"})
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}
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engine.SetSchema(setting.Database.Schema)
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return engine, nil
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}
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// InitEngine initializes the xorm.Engine and sets it as db.DefaultContext
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func InitEngine(ctx context.Context) error {
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xe, err := newXORMEngine()
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if err != nil {
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if strings.Contains(err.Error(), "SQLite3 support") {
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return fmt.Errorf(`sqlite3 requires: -tags sqlite,sqlite_unlock_notify%s%w`, "\n", err)
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}
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return fmt.Errorf("failed to connect to database: %w", err)
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}
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xe.SetMapper(names.GonicMapper{})
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// WARNING: for serv command, MUST remove the output to os.stdout,
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// so use log file to instead print to stdout.
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xe.SetLogger(NewXORMLogger(setting.Database.LogSQL))
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xe.ShowSQL(setting.Database.LogSQL)
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xe.SetMaxOpenConns(setting.Database.MaxOpenConns)
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xe.SetMaxIdleConns(setting.Database.MaxIdleConns)
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xe.SetConnMaxLifetime(setting.Database.ConnMaxLifetime)
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xe.SetDefaultContext(ctx)
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if setting.Database.SlowQueryThreshold > 0 {
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xe.AddHook(&SlowQueryHook{
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Threshold: setting.Database.SlowQueryThreshold,
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Logger: log.GetLogger("xorm"),
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})
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}
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SetDefaultEngine(ctx, xe)
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return nil
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}
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// SetDefaultEngine sets the default engine for db
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func SetDefaultEngine(ctx context.Context, eng *xorm.Engine) {
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xormEngine = eng
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DefaultContext = &Context{Context: ctx, engine: xormEngine}
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}
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// UnsetDefaultEngine closes and unsets the default engine
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// We hope the SetDefaultEngine and UnsetDefaultEngine can be paired, but it's impossible now,
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// there are many calls to InitEngine -> SetDefaultEngine directly to overwrite the `xormEngine` and DefaultContext without close
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// Global database engine related functions are all racy and there is no graceful close right now.
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func UnsetDefaultEngine() {
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if xormEngine != nil {
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_ = xormEngine.Close()
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xormEngine = nil
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}
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DefaultContext = nil
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}
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// InitEngineWithMigration initializes a new xorm.Engine and sets it as the db.DefaultContext
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// This function must never call .Sync() if the provided migration function fails.
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// When called from the "doctor" command, the migration function is a version check
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// that prevents the doctor from fixing anything in the database if the migration level
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// is different from the expected value.
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func InitEngineWithMigration(ctx context.Context, migrateFunc func(*xorm.Engine) error) (err error) {
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if err = InitEngine(ctx); err != nil {
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return err
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}
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if err = xormEngine.Ping(); err != nil {
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return err
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}
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preprocessDatabaseCollation(xormEngine)
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// We have to run migrateFunc here in case the user is re-running installation on a previously created DB.
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// If we do not then table schemas will be changed and there will be conflicts when the migrations run properly.
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//
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// Installation should only be being re-run if users want to recover an old database.
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// However, we should think carefully about should we support re-install on an installed instance,
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// as there may be other problems due to secret reinitialization.
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if err = migrateFunc(xormEngine); err != nil {
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return fmt.Errorf("migrate: %w", err)
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}
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if err = SyncAllTables(); err != nil {
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return fmt.Errorf("sync database struct error: %w", err)
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}
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for _, initFunc := range registeredInitFuncs {
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if err := initFunc(); err != nil {
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return fmt.Errorf("initFunc failed: %w", err)
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}
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}
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return nil
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}
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