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ee292786b1
Here, we make the sql query option params (batch size and pagination size) configurable. The defaults for SQLite vs Postgres are still the same but will be changed in an upcoming commit.
58 lines
2.3 KiB
Go
58 lines
2.3 KiB
Go
package sqldb
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import (
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"fmt"
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"net/url"
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"time"
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)
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const (
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// defaultMaxConns is the number of permitted active and idle
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// connections. We want to limit this so it isn't unlimited. We use the
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// same value for the number of idle connections as, this can speed up
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// queries given a new connection doesn't need to be established each
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// time.
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defaultMaxConns = 25
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// connIdleLifetime is the amount of time a connection can be idle.
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connIdleLifetime = 5 * time.Minute
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)
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// SqliteConfig holds all the config arguments needed to interact with our
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// sqlite DB.
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//
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//nolint:ll
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type SqliteConfig struct {
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Timeout time.Duration `long:"timeout" description:"The time after which a database query should be timed out."`
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BusyTimeout time.Duration `long:"busytimeout" description:"The maximum amount of time to wait for a database connection to become available for a query."`
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MaxConnections int `long:"maxconnections" description:"The maximum number of open connections to the database. Set to zero for unlimited."`
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PragmaOptions []string `long:"pragmaoptions" description:"A list of pragma options to set on a database connection. For example, 'auto_vacuum=incremental'. Note that the flag must be specified multiple times if multiple options are to be set."`
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SkipMigrations bool `long:"skipmigrations" description:"Skip applying migrations on startup."`
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QueryConfig `group:"query" namespace:"query"`
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}
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// PostgresConfig holds the postgres database configuration.
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//
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//nolint:ll
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type PostgresConfig struct {
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Dsn string `long:"dsn" description:"Database connection string."`
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Timeout time.Duration `long:"timeout" description:"Database connection timeout. Set to zero to disable."`
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MaxConnections int `long:"maxconnections" description:"The maximum number of open connections to the database. Set to zero for unlimited."`
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SkipMigrations bool `long:"skipmigrations" description:"Skip applying migrations on startup."`
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QueryConfig `group:"query" namespace:"query"`
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}
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func (p *PostgresConfig) Validate() error {
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if p.Dsn == "" {
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return fmt.Errorf("DSN is required")
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}
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// Parse the DSN as a URL.
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_, err := url.Parse(p.Dsn)
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if err != nil {
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return fmt.Errorf("invalid DSN: %w", err)
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}
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return nil
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}
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