53 lines
1.2 KiB
Go
53 lines
1.2 KiB
Go
package litestream
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import (
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"context"
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)
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// Replicator represents a method for replicating the snapshot & WAL data to
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// a remote destination.
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type Replicator interface {
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Name() string
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Type() string
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BeginSnapshot(ctx context.Context) error
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}
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var _ Replicator = (*FileReplicator)(nil)
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// FileReplicator is a replicator that replicates a DB to a local file path.
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type FileReplicator struct {
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db *DB // source database
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name string // replicator name, optional
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dst string // destination path
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}
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// NewFileReplicator returns a new instance of FileReplicator.
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func NewFileReplicator(db *DB, name, dst string) *FileReplicator {
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return &FileReplicator{
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db: db,
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name: name,
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dst: dst,
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}
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}
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// Name returns the name of the replicator. Returns the type if no name set.
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func (r *FileReplicator) Name() string {
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if r.name != "" {
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return r.name
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}
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return r.Type()
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}
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// Type returns the type of replicator.
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func (r *FileReplicator) Type() string {
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return "file"
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}
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//
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func (r *FileReplicator) BeginSnapshot(ctx context.Context) error {
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// TODO: Set snapshotting state to true.
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// TODO: Read current generation.
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// TODO: Copy database to destination.
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return nil
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}
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