credentialstore

type Capabilities struct {
	Persistent      bool
	CrossProcessCAS bool
}

type ConditionalWriter interface {
	// Put is always conditional. A nil expected version means create-only. A
	// non-nil expected version replaces only a record carrying that version.
	// There is no unconditional overwrite mode, and a zero Version is not a
	// wildcard.
	Put(ctx context.Context, key, value []byte, expected *Version) (Record, error)

	// Delete removes only the record carrying expected. A missing record returns
	// ErrNotFound; a stale, zero, or foreign version returns ErrConflict.
	Delete(ctx context.Context, key []byte, expected Version) error
}

type EncryptedFileStore struct {
	// contains filtered or unexported fields
}

type EnvironmentLookup func(string) (string, bool)

type EnvironmentReader struct {
	// contains filtered or unexported fields
}

type MemoryBackend struct {
	// contains filtered or unexported fields
}

type PlainFileStore struct {
	// contains filtered or unexported fields
}

type Reader interface {
	// Get returns an owned value copy and its current opaque version.
	Get(ctx context.Context, key []byte) (Record, error)

	Capabilities() Capabilities

	// Close is safe for concurrent use and idempotent for this handle.
	Close() error
}

type Record struct {
	Value   []byte
	Version Version
}

type Store interface {
	Reader
	ConditionalWriter
}

type Version struct {
	// contains filtered or unexported fields
}