mirror of
https://github.com/wavetermdev/waveterm.git
synced 2024-12-22 16:48:23 +01:00
83 lines
1.9 KiB
Go
83 lines
1.9 KiB
Go
// Copyright 2024, Command Line Inc.
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// SPDX-License-Identifier: Apache-2.0
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package blockstore
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// setup for blockstore db
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// includes migration support and txwrap setup
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import (
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"context"
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"fmt"
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"log"
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"path"
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"time"
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"github.com/wavetermdev/thenextwave/pkg/util/migrateutil"
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"github.com/wavetermdev/thenextwave/pkg/wavebase"
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"github.com/jmoiron/sqlx"
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_ "github.com/mattn/go-sqlite3"
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"github.com/sawka/txwrap"
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dbfs "github.com/wavetermdev/thenextwave/db"
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)
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const BlockstoreDBName = "blockstore.db"
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type TxWrap = txwrap.TxWrap
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var globalDB *sqlx.DB
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var useTestingDb bool // just for testing (forces GetDB() to return an in-memory db)
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func InitBlockstore() error {
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ctx, cancelFn := context.WithTimeout(context.Background(), 2*time.Second)
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defer cancelFn()
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var err error
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globalDB, err = MakeDB(ctx)
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if err != nil {
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return err
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}
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err = migrateutil.Migrate("blockstore", globalDB.DB, dbfs.BlockstoreMigrationFS, "migrations-blockstore")
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if err != nil {
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return err
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}
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if !stopFlush.Load() {
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go GBS.runFlusher()
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}
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log.Printf("blockstore initialized\n")
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return nil
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}
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func GetDBName() string {
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waveHome := wavebase.GetWaveHomeDir()
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return path.Join(waveHome, BlockstoreDBName)
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}
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func MakeDB(ctx context.Context) (*sqlx.DB, error) {
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var rtn *sqlx.DB
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var err error
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if useTestingDb {
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dbName := ":memory:"
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log.Printf("[db] using in-memory db\n")
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rtn, err = sqlx.Open("sqlite3", dbName)
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} else {
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dbName := GetDBName()
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log.Printf("[db] opening db %s\n", dbName)
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rtn, err = sqlx.Open("sqlite3", fmt.Sprintf("file:%s?mode=rwc&_journal_mode=WAL&_busy_timeout=5000", dbName))
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}
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if err != nil {
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return nil, fmt.Errorf("opening db: %w", err)
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}
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rtn.DB.SetMaxOpenConns(1)
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return rtn, nil
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}
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func WithTx(ctx context.Context, fn func(tx *TxWrap) error) error {
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return txwrap.WithTx(ctx, globalDB, fn)
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}
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func WithTxRtn[RT any](ctx context.Context, fn func(tx *TxWrap) (RT, error)) (RT, error) {
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return txwrap.WithTxRtn(ctx, globalDB, fn)
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}
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