snapshots

Aug 26, 2026

Changes in this version

+ const ProgressEmitInterval

+ func DisplayRef(ref string) string

+ func EmitProgress(ctx context.Context, item string, current, total int64, unit string)

+ func NewProgressReader(ctx context.Context, item string, total int64, r io.ReadCloser) io.ReadCloser

+ type ProgressTracker struct

+ func NewProgressTracker(ctx context.Context, item string, total int64, unit string) *ProgressTracker

+ func (pt *ProgressTracker) Finish()

+ func (pt *ProgressTracker) Update(current int64)

May 29, 2026

Changes in this version

type Accessor

+ Scratch func(ctx context.Context) (ImmutableRef, error)

type MutableRef

+ CommitWithUsage func(context.Context, snapshots.Usage) (ImmutableRef, error)

May 22, 2026

Changes in this version

+ var ErrLocked = errors.New("locked")

+ var ErrNoBlobs = errors.Errorf("no blobs for snapshot")

+ var NoUpdateLastUsed noUpdateLastUsed

+ func EnsureLease(ctx context.Context) (context.Context, error)

+ func HasLazyLease(ctx context.Context) bool

+ func IsNotFound(err error) bool

+ func MakeTemporary(l *leases.Lease) error

+ func WithLazyLease(ctx context.Context, lm leases.Manager, opts ...leases.Opt) (context.Context, func(context.Context) error, error)

+ func WithLease(ctx context.Context, ls leases.Manager, opts ...leases.Opt) (context.Context, func(context.Context) error, error)

+ func WithoutLazyLease(ctx context.Context) context.Context

+ type Accessor interface

+ ApplySnapshotDiff func(ctx context.Context, lower, upper ImmutableRef, opts ...RefOption) (ImmutableRef, error)

+ Get func(ctx context.Context, id string, opts ...RefOption) (ImmutableRef, error)

+ GetBySnapshotID func(ctx context.Context, snapshotID string, opts ...RefOption) (ImmutableRef, error)

+ GetMutable func(ctx context.Context, id string, opts ...RefOption) (MutableRef, error)

+ GetMutableBySnapshotID func(ctx context.Context, snapshotID string, opts ...RefOption) (MutableRef, error)

+ ImportImage func(ctx context.Context, img *ImportedImage, opts ImportImageOpts) (ImmutableRef, error)

+ Merge func(ctx context.Context, parents []ImmutableRef, opts ...RefOption) (ImmutableRef, error)

+ New func(ctx context.Context, parent ImmutableRef, opts ...RefOption) (MutableRef, error)

+ type Diff struct

+ Comparison fsdiff.Comparison

+ Lower string

+ Upper string

+ type ExportChain struct

+ Layers []ExportLayer

+ Provider content.InfoReaderProvider

+ type ExportLayer struct

+ CreatedAt *time.Time

+ Description string

+ Descriptor ocispecs.Descriptor

+ type ImmutableRef interface

+ ExportChain func(ctx context.Context, cfg config.RefConfig) (*ExportChain, error)

+ type ImportImageOpts struct

+ ImageRef string

+ RecordType client.UsageRecordType

+ type ImportedImage struct

+ ConfigDesc ocispecs.Descriptor

+ Layers []ocispecs.Descriptor

+ ManifestDesc ocispecs.Descriptor

+ Nonlayers []ocispecs.Descriptor

+ Ref string

+ type ImportedLayerBlobKey struct

+ BlobDigest digest.Digest

+ ParentSnapshotID string

+ type ImportedLayerBlobRow struct

+ BlobDigest digest.Digest

+ ParentSnapshotID string

+ SnapshotID string

+ type ImportedLayerDiffKey struct

+ DiffID digest.Digest

+ ParentSnapshotID string

+ type ImportedLayerDiffRow struct

+ DiffID digest.Digest

+ ParentSnapshotID string

+ SnapshotID string

+ type LeaseManager struct

+ func NewLeaseManager(lm leases.Manager, ns string) *LeaseManager

+ func (l *LeaseManager) AddResource(ctx context.Context, lease leases.Lease, resource leases.Resource) error

+ func (l *LeaseManager) Create(ctx context.Context, opts ...leases.Opt) (leases.Lease, error)

+ func (l *LeaseManager) Delete(ctx context.Context, lease leases.Lease, opts ...leases.DeleteOpt) error

+ func (l *LeaseManager) DeleteResource(ctx context.Context, lease leases.Lease, resource leases.Resource) error

+ func (l *LeaseManager) List(ctx context.Context, filters ...string) ([]leases.Lease, error)

+ func (l *LeaseManager) ListResources(ctx context.Context, lease leases.Lease) ([]leases.Resource, error)

+ func (l *LeaseManager) Namespace() string

+ func (l *LeaseManager) WithNamespace(ns string) *LeaseManager

+ type LeaseRef struct

+ func NewLease(ctx context.Context, lm leases.Manager, opts ...leases.Opt) (*LeaseRef, context.Context, error)

+ func (l *LeaseRef) Adopt(ctx context.Context) error

+ func (l *LeaseRef) Discard() error

+ type LocalMounterOpt func(*localMounter)

+ func ForceRemount() LocalMounterOpt

+ type MergeSnapshotter interface

+ Merge func(ctx context.Context, key string, diffs []Diff, opts ...snapshots.Opt) error

+ func NewMergeSnapshotter(ctx context.Context, sn Snapshotter, lm leases.Manager) MergeSnapshotter

+ type MetadataStore interface

+ Search func(context.Context, string, bool) ([]RefMetadata, error)

+ type Mountable interface

+ Mount func(ctx context.Context, readonly bool) (MountableRef, error)

+ type MountableRef = executor.MountableRef

+ type Mounter interface

+ Mount func() (string, error)

+ Unmount func() error

+ func LocalMounter(mountable MountableRef, opts ...LocalMounterOpt) Mounter

+ func LocalMounterWithMounts(mounts []mount.Mount, opts ...LocalMounterOpt) Mounter

+ type MutableRef interface

+ Commit func(context.Context) (ImmutableRef, error)

+ InvalidateSize func(context.Context) error

+ type PersistentMetadataRows struct

+ ImportedByBlob []ImportedLayerBlobRow

+ ImportedByDiff []ImportedLayerDiffRow

+ SnapshotContent []SnapshotContentRow

+ type Ref interface

+ ID func() string

+ Release func(context.Context) error

+ Size func(context.Context) (int64, error)

+ SnapshotID func() string

+ type RefMetadata interface

+ ClearValueAndIndex func(string, string) error

+ Get func(string) *Value

+ GetCreatedAt func() time.Time

+ GetDescription func() string

+ GetExternal func(string) ([]byte, error)

+ GetLayerType func() string

+ GetRecordType func() client.UsageRecordType

+ GetString func(string) string

+ ID func() string

+ SetCreatedAt func(time.Time) error

+ SetDescription func(string) error

+ SetExternal func(string, []byte) error

+ SetLayerType func(string) error

+ SetRecordType func(client.UsageRecordType) error

+ SetString func(key, val, index string) error

+ SnapshotID func() string

+ type RefOption interface

+ func WithCreationTime(tm time.Time) RefOption

+ func WithDescription(descr string) RefOption

+ func WithImageRef(imageRef string) RefOption

+ func WithRecordType(t client.UsageRecordType) RefOption

+ type SnapshotContentRow struct

+ Digest digest.Digest

+ SnapshotID string

+ type SnapshotManager interface

+ AttachLease func(ctx context.Context, leaseID, snapshotID string) error

+ Close func() error

+ DeleteStaleDaggerOwnerLeases func(ctx context.Context, keep map[string]struct{}) error

+ LoadPersistentMetadata func(rows PersistentMetadataRows) error

+ PersistentMetadataRows func() PersistentMetadataRows

+ RemoveLease func(ctx context.Context, leaseID string) error

+ SnapshotRecordMetadata func(ctx context.Context, snapshotID string) (SnapshotRecordMetadata, bool, error)

+ SnapshotSize func(ctx context.Context, snapshotID string) (int64, error)

+ func NewSnapshotManager(opt SnapshotManagerOpt) (SnapshotManager, error)

+ type SnapshotManagerOpt struct

+ Applier diff.Applier

+ ContentStore content.Store

+ Differ diff.Comparer

+ LeaseManager leases.Manager

+ MountPoolRoot string

+ Snapshotter Snapshotter

+ type SnapshotRecordMetadata struct

+ Description string

+ RecordType client.UsageRecordType

+ type Snapshotter interface

+ Close func() error

+ Commit func(ctx context.Context, name, key string, opts ...snapshots.Opt) error

+ Mounts func(ctx context.Context, key string) (MountableRef, error)

+ Name func() string

+ Prepare func(ctx context.Context, key, parent string, opts ...snapshots.Opt) error

+ Remove func(ctx context.Context, key string) error

+ Stat func(ctx context.Context, key string) (snapshots.Info, error)

+ Update func(ctx context.Context, info snapshots.Info, fieldpaths ...string) (snapshots.Info, error)

+ Usage func(ctx context.Context, key string) (snapshots.Usage, error)

+ View func(ctx context.Context, key, parent string, opts ...snapshots.Opt) (MountableRef, error)

+ Walk func(ctx context.Context, fn snapshots.WalkFunc, filters ...string) error

+ type Value struct

+ Index string

+ Value json.RawMessage

+ func NewValue(v interface{}) (*Value, error)

+ func (v *Value) Unmarshal(target interface{}) error