mirror of https://git.sr.ht/~ashkeel/strimertul
63 lines
1.3 KiB
Go
63 lines
1.3 KiB
Go
package database
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import (
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"fmt"
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"io"
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"os"
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"path/filepath"
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kv "git.sr.ht/~ashkeel/kilovolt/v12"
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"github.com/urfave/cli/v2"
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)
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// Driver is a driver wrapping a supported database
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type Driver interface {
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Hub() *kv.Hub
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Close() error
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Import(map[string]string) error
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Export(io.Writer) error
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Restore(io.Reader) error
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Backup(io.Writer) error
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}
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type BackupOptions struct {
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BackupDir string
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BackupInterval int
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MaxBackups int
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}
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const databaseDefaultDriver = "pebble"
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func getDatabaseDriverName(ctx *cli.Context) string {
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driver := ctx.String("driver")
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if driver != "auto" {
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return driver
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}
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dbDirectory := ctx.String("database-dir")
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file, err := os.ReadFile(filepath.Join(dbDirectory, "stul-driver"))
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if err != nil {
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// No driver file found (or file corrupted), use default driver
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return databaseDefaultDriver
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}
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return string(file)
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}
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func GetDatabaseDriver(ctx *cli.Context) (Driver, error) {
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name := getDatabaseDriverName(ctx)
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dbDirectory := ctx.String("database-dir")
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switch name {
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case "badger":
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return nil, cli.Exit("Badger is not supported anymore as a database driver", 64)
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case "pebble":
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db, err := NewPebble(dbDirectory)
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if err != nil {
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return nil, cli.Exit(err.Error(), 64)
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}
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return db, nil
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default:
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return nil, cli.Exit(fmt.Sprintf("Unknown database driver: %s", name), 64)
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}
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}
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