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package assetmigrate ¶

import "golazy.dev/lazyassets/assetmigrate"

Package assetmigrate adapts lazyassets uploads to lazymigrate.

Variables ¶

var ErrSchemaUnsupported ¶

ErrSchemaUnsupported is returned by schema load/dump methods because asset uploads do not have schema snapshots.

var ErrSchemaUnsupported = errors.New("assetmigrate: schema load and dump are not supported")

Functions ¶

func DB ¶

DB returns a lazymigrate DB containing one source migration and one backend.

func DB(ctx context.Context, config Config) (lazymigrate.DB, error)

Types ¶

type Backend ¶

Backend stores asset migration state in object storage and uploads the registry when its source migration is pending.

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

func (b *Backend) DumpSchema ¶

func (b *Backend) DumpSchema(context.Context) ([]byte, error)

func (b *Backend) List ¶

List reports the configured migration as applied when its done marker exists and matches the current asset manifest and upload config.

func (b *Backend) List(ctx context.Context) ([]lazymigrate.BackendMigration, error)

func (b *Backend) LoadSchema ¶

func (b *Backend) LoadSchema(context.Context, []byte) error

func (b *Backend) Run ¶

Run applies the asset upload migration.

func (b *Backend) Run(ctx context.Context, step lazymigrate.Step) error

func (b *Backend) Setup ¶

Setup validates the backend. Object storage metadata is represented by marker objects, so no backend table or bucket is created here.

func (b *Backend) Setup(context.Context) error

type Config ¶

Config describes one asset upload migration.

type Config struct {
	Registry	*lazyassets.Registry
	Storage		Storage
	ID		string
	MarkerPrefix	string
	Mode		lazyassets.UnpackMode
	UploadPrefix	string
	WriteManifest	bool
	StaleAfter	time.Duration
	HeartbeatEvery	time.Duration
	WaitMin		time.Duration
	WaitMax		time.Duration
	PostDoneRefresh	time.Duration
}

type Storage ¶

Storage is the object storage capability required by asset migrations.

type Storage interface {
	lazystorage.Storage
	lazystorage.Writer
}