mirror of
https://github.com/tulir/mautrix-whatsapp
synced 2024-12-17 10:53:46 +01:00
148 lines
4.4 KiB
Go
148 lines
4.4 KiB
Go
package database
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import (
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"fmt"
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"math"
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"strings"
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)
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func countRows(db *Database, table string) (int, error) {
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countRow := db.QueryRow(fmt.Sprintf("SELECT COUNT(*) FROM %s", table))
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var count int
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err := countRow.Scan(&count)
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return count, err
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}
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const VariableCountLimit = 512
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func migrateTable(old *Database, new *Database, table string, columns ...string) error {
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columnNames := strings.Join(columns, ",")
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fmt.Printf("Migrating %s: ", table)
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rowCount, err := countRows(old, table)
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if err != nil {
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return err
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}
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fmt.Print("found ", rowCount, " rows of data, ")
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rows, err := old.Query(fmt.Sprintf("SELECT %s FROM \"%s\"", columnNames, table))
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if err != nil {
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return err
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}
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serverColNames, err := rows.Columns()
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if err != nil {
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return err
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}
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colCount := len(serverColNames)
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valueStringFormat := strings.Repeat("$%d, ", colCount)
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valueStringFormat = fmt.Sprintf("(%s)", valueStringFormat[:len(valueStringFormat)-2])
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cols := make([]interface{}, colCount)
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colPtrs := make([]interface{}, colCount)
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for i := 0; i < colCount; i++ {
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colPtrs[i] = &cols[i]
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}
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batchSize := VariableCountLimit / colCount
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values := make([]interface{}, batchSize*colCount)
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valueStrings := make([]string, batchSize)
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var inserted int64
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batchCount := int(math.Ceil(float64(rowCount) / float64(batchSize)))
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tx, err := new.Begin()
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if err != nil {
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return err
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}
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fmt.Printf("migrating in %d batches: ", batchCount)
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for rowCount > 0 {
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var i int
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for ; rows.Next() && i < batchSize; i++ {
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colPtrs := make([]interface{}, colCount)
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valueStringArgs := make([]interface{}, colCount)
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for j := 0; j < colCount; j++ {
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pos := i*colCount + j
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colPtrs[j] = &values[pos]
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valueStringArgs[j] = pos + 1
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}
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valueStrings[i] = fmt.Sprintf(valueStringFormat, valueStringArgs...)
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err = rows.Scan(colPtrs...)
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if err != nil {
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panic(err)
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}
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}
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slicedValues := values
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slicedValueStrings := valueStrings
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if i < len(valueStrings) {
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slicedValueStrings = slicedValueStrings[:i]
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slicedValues = slicedValues[:i*colCount]
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}
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res, err := tx.Exec(fmt.Sprintf("INSERT INTO \"%s\" (%s) VALUES %s", table, columnNames, strings.Join(slicedValueStrings, ",")), slicedValues...)
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if err != nil {
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panic(err)
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}
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count, _ := res.RowsAffected()
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inserted += count
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rowCount -= batchSize
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fmt.Print("#")
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}
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err = tx.Commit()
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if err != nil {
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return err
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}
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fmt.Println(" -- done with", inserted, "rows inserted")
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return nil
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}
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func Migrate(old *Database, new *Database) {
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err := migrateTable(old, new, "portal", "jid", "receiver", "mxid", "name", "topic", "avatar", "avatar_url", "encrypted")
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if err != nil {
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panic(err)
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}
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err = migrateTable(old, new, "user", "mxid", "jid", "management_room", "client_id", "client_token", "server_token", "enc_key", "mac_key", "last_connection")
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if err != nil {
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panic(err)
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}
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err = migrateTable(old, new, "puppet", "jid", "avatar", "displayname", "name_quality", "custom_mxid", "access_token", "next_batch", "avatar_url")
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if err != nil {
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panic(err)
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}
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err = migrateTable(old, new, "user_portal", "user_jid", "portal_jid", "portal_receiver", "in_community")
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if err != nil {
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panic(err)
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}
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err = migrateTable(old, new, "message", "chat_jid", "chat_receiver", "jid", "mxid", "sender", "content", "timestamp")
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if err != nil {
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panic(err)
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}
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err = migrateTable(old, new, "mx_registrations", "user_id")
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if err != nil {
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panic(err)
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}
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err = migrateTable(old, new, "mx_user_profile", "room_id", "user_id", "membership")
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if err != nil {
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panic(err)
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}
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err = migrateTable(old, new, "mx_room_state", "room_id", "power_levels")
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if err != nil {
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panic(err)
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}
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err = migrateTable(old, new, "crypto_account", "device_id", "shared", "sync_token", "account")
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if err != nil {
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panic(err)
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}
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err = migrateTable(old, new, "crypto_message_index", "sender_key", "session_id", `"index"`, "event_id", "timestamp")
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if err != nil {
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panic(err)
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}
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err = migrateTable(old, new, "crypto_tracked_user", "user_id")
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if err != nil {
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panic(err)
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}
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err = migrateTable(old, new, "crypto_device", "user_id", "device_id", "identity_key", "signing_key", "trust", "deleted", "name")
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if err != nil {
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panic(err)
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}
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err = migrateTable(old, new, "crypto_olm_session", "session_id", "sender_key", "session", "created_at", "last_used")
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if err != nil {
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panic(err)
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}
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err = migrateTable(old, new, "crypto_megolm_inbound_session", "session_id", "sender_key", "signing_key", "room_id", "session", "forwarding_chains")
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if err != nil {
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panic(err)
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}
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}
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