feat(tfstated): garbage collect older states
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0e58781daa
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4c2032e1f0
1 changed files with 25 additions and 2 deletions
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@ -22,7 +22,14 @@ func (db *DB) DeleteState(name string) (bool, error) {
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func (db *DB) GetState(name string) ([]byte, error) {
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var encryptedData []byte
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err := db.QueryRow(`SELECT versions.data FROM versions JOIN states ON states.id = versions.state_id WHERE states.name = ? ORDER BY versions.id DESC LIMIT 1;`, name).Scan(&encryptedData)
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err := db.QueryRow(
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`SELECT versions.data
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FROM versions
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JOIN states ON states.id = versions.state_id
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WHERE states.name = ?
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ORDER BY versions.id DESC
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LIMIT 1;`,
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name).Scan(&encryptedData)
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if err != nil {
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if errors.Is(err, sql.ErrNoRows) {
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return []byte{}, nil
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@ -84,7 +91,23 @@ func (db *DB) SetState(name string, data []byte, lockID string) (bool, error) {
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if err != nil {
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return false, err
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}
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// TODO delete old states
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_, err = tx.ExecContext(db.ctx,
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`DELETE FROM versions
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WHERE state_id = (SELECT id
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FROM states
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WHERE name = :name)
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AND id < (SELECT MIN(id)
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FROM(SELECT versions.id
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FROM versions
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JOIN states ON states.id = versions.state_id
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WHERE states.name = :name
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ORDER BY versions.id DESC
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LIMIT 64));`,
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sql.Named("name", name),
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)
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if err != nil {
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return false, err
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}
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err = tx.Commit()
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return false, err
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}
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