.circleci/config.yml

@@ -1018,7 +1018,7 @@ workflows:
           requires:
             - build
           suite: utest-unit-rest
-          target: "./blockstore/... ./build/... ./chain/... ./conformance/... ./gateway/... ./journal/... ./lib/... ./markets/... ./paychmgr/... ./tools/..."
+          target: "./blockstore/... ./build/... ./chain/... ./conformance/... ./gateway/... ./journal/... ./lib/... ./markets/... ./paychmgr/... ./provider/... ./tools/..."
           resource_class: 2xlarge
       - test:
           name: test-unit-storage

cmd/lotus-provider/pipeline.go

@@ -2,16 +2,19 @@ package main
 
 import (
 	"fmt"
+
+	"github.com/urfave/cli/v2"
+	"golang.org/x/xerrors"
+
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
+
 	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/types"
 	lcli "github.com/filecoin-project/lotus/cli"
 	"github.com/filecoin-project/lotus/cmd/lotus-provider/deps"
 	"github.com/filecoin-project/lotus/lib/harmony/harmonydb"
 	"github.com/filecoin-project/lotus/provider/lpseal"
-	"github.com/urfave/cli/v2"
-	"golang.org/x/xerrors"
 )
 
 var pipelineCmd = &cli.Command{

cmd/lotus-provider/tasks/tasks.go

@@ -3,9 +3,6 @@ package tasks
 
 import (
 	"context"
-	"github.com/filecoin-project/lotus/provider/chainsched"
-	"github.com/filecoin-project/lotus/provider/lpffi"
-	"github.com/filecoin-project/lotus/provider/lpseal"
 
 	logging "github.com/ipfs/go-log/v2"
 	"github.com/samber/lo"
@@ -13,7 +10,10 @@ import (
 	"github.com/filecoin-project/lotus/cmd/lotus-provider/deps"
 	"github.com/filecoin-project/lotus/lib/harmony/harmonytask"
 	"github.com/filecoin-project/lotus/provider"
+	"github.com/filecoin-project/lotus/provider/chainsched"
+	"github.com/filecoin-project/lotus/provider/lpffi"
 	"github.com/filecoin-project/lotus/provider/lpmessage"
+	"github.com/filecoin-project/lotus/provider/lpseal"
 	"github.com/filecoin-project/lotus/provider/lpwinning"
 )
 

documentation/en/cli-lotus-provider.md

@@ -15,6 +15,7 @@ COMMANDS:
    config    Manage node config by layers. The layer 'base' will always be applied. 
    test      Utility functions for testing
    web       Start lotus provider web interface
+   pipeline  Manage the sealing pipeline
    version   Print version
    help, h   Shows a list of commands or help for one command
    DEVELOPER:
@@ -267,6 +268,40 @@ OPTIONS:
    --help, -h                         show help
 ```
 
+## lotus-provider pipeline
+```
+NAME:
+   lotus-provider pipeline - Manage the sealing pipeline
+
+USAGE:
+   lotus-provider pipeline command [command options] [arguments...]
+
+COMMANDS:
+   start    Start new sealing operations manually
+   help, h  Shows a list of commands or help for one command
+
+OPTIONS:
+   --help, -h  show help
+```
+
+### lotus-provider pipeline start
+```
+NAME:
+   lotus-provider pipeline start - Start new sealing operations manually
+
+USAGE:
+   lotus-provider pipeline start [command options] [arguments...]
+
+OPTIONS:
+   --actor value                      Specify actor address to start sealing sectors for
+   --now                              Start sealing sectors for all actors now (not on schedule) (default: false)
+   --cc                               Start sealing new CC sectors (default: false)
+   --count value                      Number of sectors to start (default: 1)
+   --synthetic                        Use synthetic PoRep (default: false)
+   --layers value [ --layers value ]  list of layers to be interpreted (atop defaults). Default: base (default: "base")
+   --help, -h                         show help
+```
+
 ## lotus-provider version
 ```
 NAME:

documentation/en/default-lotus-provider-config.toml

@@ -11,6 +11,48 @@
   # type: int
   #WinningPostMaxTasks = 0
 
+  # EnableSealSDR enables SDR tasks to run. SDR is the long sequential computation
+  # creating layers.
+  # In lotus-miner this was run as part of PreCommit1.
+  #
+  # type: bool
+  #EnableSealSDR = false
+
+  # type: int
+  #SealSDRMaxTasks = 0
+
+  # EnableSealSDRTrees enables the SDR pipeline tree-building task to run.
+  # This task handles encoding of unsealed data into last sdr layer and building
+  # of TreeR, TreeC and TreeD.
+  # In lotus-miner this was run as part of PreCommit2 (TreeD was run in PreCommit1).
+  #
+  # type: bool
+  #EnableSealSDRTrees = false
+
+  # type: int
+  #SealSDRTreesMaxTasks = 0
+
+  # EnableSendPrecommitMsg enables the sending of precommit messages to the chain
+  # from this lotus-provider instance.
+  #
+  # type: bool
+  #EnableSendPrecommitMsg = false
+
+  # EnableSendCommitMsg enables the computation of the porep proof
+  # In lotus-miner this was Commit1 / Commit2
+  #
+  # type: bool
+  #EnablePoRepProof = false
+
+  # type: int
+  #PoRepProofMaxTasks = 0
+
+  # EnableSendCommitMsg enables the sending of commit messages to the chain
+  # from this lotus-provider instance.
+  #
+  # type: bool
+  #EnableSendCommitMsg = false
+
   # type: bool
   #EnableWebGui = false
 

go.mod

@@ -117,6 +117,7 @@ require (
 	github.com/mattn/go-isatty v0.0.19
 	github.com/mattn/go-sqlite3 v1.14.16
 	github.com/minio/blake2b-simd v0.0.0-20160723061019-3f5f724cb5b1
+	github.com/minio/sha256-simd v1.0.1
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/multiformats/go-base32 v0.1.0
 	github.com/multiformats/go-multiaddr v0.12.1
@@ -126,7 +127,6 @@ require (
 	github.com/multiformats/go-multihash v0.2.3
 	github.com/multiformats/go-varint v0.0.7
 	github.com/open-rpc/meta-schema v0.0.0-20201029221707-1b72ef2ea333
-	github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58
 	github.com/pkg/errors v0.9.1
 	github.com/polydawn/refmt v0.89.0
 	github.com/prometheus/client_golang v1.16.0
@@ -276,7 +276,6 @@ require (
 	github.com/miekg/dns v1.1.55 // indirect
 	github.com/mikioh/tcpinfo v0.0.0-20190314235526-30a79bb1804b // indirect
 	github.com/mikioh/tcpopt v0.0.0-20190314235656-172688c1accc // indirect
-	github.com/minio/sha256-simd v1.0.1 // indirect
 	github.com/mr-tron/base58 v1.2.0 // indirect
 	github.com/multiformats/go-base36 v0.2.0 // indirect
 	github.com/multiformats/go-multiaddr-fmt v0.1.0 // indirect
@@ -286,6 +285,7 @@ require (
 	github.com/onsi/ginkgo/v2 v2.11.0 // indirect
 	github.com/opencontainers/runtime-spec v1.1.0 // indirect
 	github.com/opentracing/opentracing-go v1.2.0 // indirect
+	github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58 // indirect
 	github.com/petar/GoLLRB v0.0.0-20210522233825-ae3b015fd3e9 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/client_model v0.4.0 // indirect

lib/harmony/resources/resources.go

@@ -3,13 +3,13 @@ package resources
 import (
 	"bytes"
 	"context"
-	"github.com/elastic/go-sysinfo"
 	"os/exec"
 	"regexp"
 	"runtime"
 	"sync/atomic"
 	"time"
 
+	"github.com/elastic/go-sysinfo"
 	logging "github.com/ipfs/go-log/v2"
 	"golang.org/x/sys/unix"
 	"golang.org/x/xerrors"

node/config/doc_gen.go

@@ -1007,6 +1007,62 @@ block rewards will be missed!`,
 
 			Comment: ``,
 		},
+		{
+			Name: "EnableSealSDR",
+			Type: "bool",
+
+			Comment: `EnableSealSDR enables SDR tasks to run. SDR is the long sequential computation
+creating layers.
+In lotus-miner this was run as part of PreCommit1.`,
+		},
+		{
+			Name: "SealSDRMaxTasks",
+			Type: "int",
+
+			Comment: ``,
+		},
+		{
+			Name: "EnableSealSDRTrees",
+			Type: "bool",
+
+			Comment: `EnableSealSDRTrees enables the SDR pipeline tree-building task to run.
+This task handles encoding of unsealed data into last sdr layer and building
+of TreeR, TreeC and TreeD.
+In lotus-miner this was run as part of PreCommit2 (TreeD was run in PreCommit1).`,
+		},
+		{
+			Name: "SealSDRTreesMaxTasks",
+			Type: "int",
+
+			Comment: ``,
+		},
+		{
+			Name: "EnableSendPrecommitMsg",
+			Type: "bool",
+
+			Comment: `EnableSendPrecommitMsg enables the sending of precommit messages to the chain
+from this lotus-provider instance.`,
+		},
+		{
+			Name: "EnablePoRepProof",
+			Type: "bool",
+
+			Comment: `EnableSendCommitMsg enables the computation of the porep proof
+In lotus-miner this was Commit1 / Commit2`,
+		},
+		{
+			Name: "PoRepProofMaxTasks",
+			Type: "int",
+
+			Comment: ``,
+		},
+		{
+			Name: "EnableSendCommitMsg",
+			Type: "bool",
+
+			Comment: `EnableSendCommitMsg enables the sending of commit messages to the chain
+from this lotus-provider instance.`,
+		},
 		{
 			Name: "EnableWebGui",
 			Type: "bool",

node/config/storage.go

@@ -3,12 +3,12 @@ package config
 import (
 	"encoding/json"
 	"errors"
-	"github.com/mitchellh/go-homedir"
 	"io"
 	"io/fs"
 	"os"
 	"path"
 
+	"github.com/mitchellh/go-homedir"
 	"golang.org/x/xerrors"
 
 	"github.com/filecoin-project/lotus/storage/sealer/storiface"

node/config/types.go

@@ -98,10 +98,6 @@ type ProviderSubsystemsConfig struct {
 	EnableWinningPost   bool
 	WinningPostMaxTasks int
 
-	EnableWebGui bool
-	// The address that should listen for Web GUI requests.
-	GuiAddress string
-
 	// EnableSealSDR enables SDR tasks to run. SDR is the long sequential computation
 	// creating layers.
 	// In lotus-miner this was run as part of PreCommit1.
@@ -127,6 +123,10 @@ type ProviderSubsystemsConfig struct {
 	// EnableSendCommitMsg enables the sending of commit messages to the chain
 	// from this lotus-provider instance.
 	EnableSendCommitMsg bool
+
+	EnableWebGui bool
+	// The address that should listen for Web GUI requests.
+	GuiAddress string
 }
 
 type DAGStoreConfig struct {

provider/lpffi/sdr_funcs.go

@@ -4,20 +4,23 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+
+	"github.com/ipfs/go-cid"
+	logging "github.com/ipfs/go-log/v2"
+	"golang.org/x/xerrors"
+
 	ffi "github.com/filecoin-project/filecoin-ffi"
 	commcid "github.com/filecoin-project/go-fil-commcid"
 	"github.com/filecoin-project/go-state-types/abi"
+
 	"github.com/filecoin-project/lotus/provider/lpproof"
 	"github.com/filecoin-project/lotus/storage/paths"
 	"github.com/filecoin-project/lotus/storage/pipeline/lib/nullreader"
 	"github.com/filecoin-project/lotus/storage/sealer/proofpaths"
 	"github.com/filecoin-project/lotus/storage/sealer/storiface"
-	"github.com/ipfs/go-cid"
-	logging "github.com/ipfs/go-log/v2"
-	"golang.org/x/xerrors"
-	"io"
-	"os"
-	"path/filepath"
 )
 
 var log = logging.Logger("lpffi")

provider/lpmessage/watch.go

@@ -3,15 +3,18 @@ package lpmessage
 import (
 	"context"
 	"encoding/json"
+	"sync/atomic"
+
+	"github.com/ipfs/go-cid"
+
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
+
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/lib/harmony/harmonydb"
 	"github.com/filecoin-project/lotus/lib/harmony/harmonytask"
 	"github.com/filecoin-project/lotus/provider/chainsched"
-	"github.com/ipfs/go-cid"
-	"sync/atomic"
 )
 
 const MinConfidence = 6

provider/lpproof/treed_build.go

@@ -1,19 +1,21 @@
 package lpproof
 
 import (
-	commcid "github.com/filecoin-project/go-fil-commcid"
-	"github.com/filecoin-project/go-state-types/abi"
-	"github.com/hashicorp/go-multierror"
-	"github.com/ipfs/go-cid"
-	pool "github.com/libp2p/go-buffer-pool"
-	"github.com/minio/sha256-simd"
-	"golang.org/x/xerrors"
 	"io"
 	"math/bits"
 	"os"
 	"runtime"
 	"sync"
 	"time"
+
+	"github.com/hashicorp/go-multierror"
+	"github.com/ipfs/go-cid"
+	pool "github.com/libp2p/go-buffer-pool"
+	"github.com/minio/sha256-simd"
+	"golang.org/x/xerrors"
+
+	commcid "github.com/filecoin-project/go-fil-commcid"
+	"github.com/filecoin-project/go-state-types/abi"
 )
 
 const nodeSize = 32

provider/lpproof/treed_build_test.go

@@ -4,14 +4,16 @@ import (
 	"bytes"
 	"crypto/rand"
 	"fmt"
-	"github.com/filecoin-project/go-state-types/abi"
-	pool "github.com/libp2p/go-buffer-pool"
-	"github.com/stretchr/testify/require"
 	"io/ioutil"
 	"os"
 	"path/filepath"
 	"runtime"
 	"testing"
+
+	pool "github.com/libp2p/go-buffer-pool"
+	"github.com/stretchr/testify/require"
+
+	"github.com/filecoin-project/go-state-types/abi"
 )
 
 func TestTreeSize(t *testing.T) {

provider/lpseal/poller.go

@@ -2,17 +2,20 @@ package lpseal
 
 import (
 	"context"
+	"time"
+
+	logging "github.com/ipfs/go-log/v2"
+	"golang.org/x/xerrors"
+
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
+
 	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/actors/policy"
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/lib/harmony/harmonydb"
 	"github.com/filecoin-project/lotus/lib/harmony/harmonytask"
 	"github.com/filecoin-project/lotus/lib/promise"
-	logging "github.com/ipfs/go-log/v2"
-	"golang.org/x/xerrors"
-	"time"
 )
 
 var log = logging.Logger("lpseal")

provider/lpseal/sector_num_alloc.go

@@ -2,13 +2,16 @@ package lpseal
 
 import (
 	"context"
+
+	"golang.org/x/xerrors"
+
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-bitfield"
 	rlepluslazy "github.com/filecoin-project/go-bitfield/rle"
 	"github.com/filecoin-project/go-state-types/abi"
+
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/lib/harmony/harmonydb"
-	"golang.org/x/xerrors"
 )
 
 type AllocAPI interface {

provider/lpseal/task_porep.go

@@ -3,17 +3,20 @@ package lpseal
 import (
 	"bytes"
 	"context"
+
+	"github.com/ipfs/go-cid"
+	"golang.org/x/xerrors"
+
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/crypto"
+
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/lib/harmony/harmonydb"
 	"github.com/filecoin-project/lotus/lib/harmony/harmonytask"
 	"github.com/filecoin-project/lotus/lib/harmony/resources"
 	"github.com/filecoin-project/lotus/provider/lpffi"
 	"github.com/filecoin-project/lotus/storage/sealer/storiface"
-	"github.com/ipfs/go-cid"
-	"golang.org/x/xerrors"
 )
 
 type PoRepAPI interface {

provider/lpseal/task_sdr.go

@@ -3,10 +3,14 @@ package lpseal
 import (
 	"bytes"
 	"context"
+
+	"golang.org/x/xerrors"
+
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-commp-utils/zerocomm"
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/crypto"
+
 	"github.com/filecoin-project/lotus/build"
 	"github.com/filecoin-project/lotus/chain/actors/policy"
 	"github.com/filecoin-project/lotus/chain/types"
@@ -15,7 +19,6 @@ import (
 	"github.com/filecoin-project/lotus/lib/harmony/resources"
 	"github.com/filecoin-project/lotus/provider/lpffi"
 	"github.com/filecoin-project/lotus/storage/sealer/storiface"
-	"golang.org/x/xerrors"
 )
 
 var isDevnet = build.BlockDelaySecs < 30

provider/lpseal/task_submit_commit.go

@@ -3,10 +3,14 @@ package lpseal
 import (
 	"bytes"
 	"context"
+
+	"golang.org/x/xerrors"
+
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/big"
 	"github.com/filecoin-project/go-state-types/builtin"
+
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/types"
@@ -16,7 +20,6 @@ import (
 	"github.com/filecoin-project/lotus/provider/lpmessage"
 	"github.com/filecoin-project/lotus/storage/ctladdr"
 	sealing "github.com/filecoin-project/lotus/storage/pipeline"
-	"golang.org/x/xerrors"
 )
 
 type SubmitCommitAPI interface {

provider/lpseal/task_submit_precommit.go

@@ -3,11 +3,16 @@ package lpseal
 import (
 	"bytes"
 	"context"
+
+	"github.com/ipfs/go-cid"
+	"golang.org/x/xerrors"
+
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/big"
 	"github.com/filecoin-project/go-state-types/builtin"
 	miner12 "github.com/filecoin-project/go-state-types/builtin/v12/miner"
+
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/types"
@@ -17,8 +22,6 @@ import (
 	"github.com/filecoin-project/lotus/provider/lpmessage"
 	"github.com/filecoin-project/lotus/storage/ctladdr"
 	sealing "github.com/filecoin-project/lotus/storage/pipeline"
-	"github.com/ipfs/go-cid"
-	"golang.org/x/xerrors"
 )
 
 type SubmitPrecommitTaskApi interface {

provider/lpseal/task_trees.go

@@ -2,15 +2,18 @@ package lpseal
 
 import (
 	"context"
+
+	"golang.org/x/xerrors"
+
 	"github.com/filecoin-project/go-commp-utils/zerocomm"
 	"github.com/filecoin-project/go-state-types/abi"
+
 	"github.com/filecoin-project/lotus/lib/harmony/harmonydb"
 	"github.com/filecoin-project/lotus/lib/harmony/harmonytask"
 	"github.com/filecoin-project/lotus/lib/harmony/resources"
 	"github.com/filecoin-project/lotus/provider/lpffi"
 	"github.com/filecoin-project/lotus/storage/pipeline/lib/nullreader"
 	"github.com/filecoin-project/lotus/storage/sealer/storiface"
-	"golang.org/x/xerrors"
 )
 
 type TreesTask struct {

storage/paths/http_handler.go

@@ -3,7 +3,6 @@ package paths
 import (
 	"bytes"
 	"encoding/json"
-	"github.com/ipfs/go-cid"
 	"io"
 	"net/http"
 	"os"
@@ -11,6 +10,7 @@ import (
 	"time"
 
 	"github.com/gorilla/mux"
+	"github.com/ipfs/go-cid"
 	logging "github.com/ipfs/go-log/v2"
 	"golang.org/x/xerrors"
 

storage/paths/interface.go

@@ -2,9 +2,10 @@ package paths
 
 import (
 	"context"
-	"github.com/ipfs/go-cid"
 	"io"
 
+	"github.com/ipfs/go-cid"
+
 	"github.com/filecoin-project/go-state-types/abi"
 
 	"github.com/filecoin-project/lotus/storage/sealer/fsutil"

storage/paths/local.go

@@ -3,7 +3,6 @@ package paths
 import (
 	"context"
 	"encoding/json"
-	"github.com/ipfs/go-cid"
 	"math/bits"
 	"math/rand"
 	"os"
@@ -11,6 +10,7 @@ import (
 	"sync"
 	"time"
 
+	"github.com/ipfs/go-cid"
 	"golang.org/x/xerrors"
 
 	ffi "github.com/filecoin-project/filecoin-ffi"

storage/paths/mocks/store.go

@@ -9,6 +9,7 @@ import (
 	reflect "reflect"
 
 	gomock "github.com/golang/mock/gomock"
+	cid "github.com/ipfs/go-cid"
 
 	abi "github.com/filecoin-project/go-state-types/abi"
 
@@ -85,6 +86,21 @@ func (mr *MockStoreMockRecorder) GenerateSingleVanillaProof(arg0, arg1, arg2, ar
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GenerateSingleVanillaProof", reflect.TypeOf((*MockStore)(nil).GenerateSingleVanillaProof), arg0, arg1, arg2, arg3)
 }
 
+// GenetartePoRepVanillaProof mocks base method.
+func (m *MockStore) GenetartePoRepVanillaProof(arg0 context.Context, arg1 storiface.SectorRef, arg2, arg3 cid.Cid, arg4 abi.SealRandomness, arg5 abi.InteractiveSealRandomness) ([]byte, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "GenetartePoRepVanillaProof", arg0, arg1, arg2, arg3, arg4, arg5)
+	ret0, _ := ret[0].([]byte)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// GenetartePoRepVanillaProof indicates an expected call of GenetartePoRepVanillaProof.
+func (mr *MockStoreMockRecorder) GenetartePoRepVanillaProof(arg0, arg1, arg2, arg3, arg4, arg5 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GenetartePoRepVanillaProof", reflect.TypeOf((*MockStore)(nil).GenetartePoRepVanillaProof), arg0, arg1, arg2, arg3, arg4, arg5)
+}
+
 // MoveStorage mocks base method.
 func (m *MockStore) MoveStorage(arg0 context.Context, arg1 storiface.SectorRef, arg2 storiface.SectorFileType) error {
 	m.ctrl.T.Helper()

storage/paths/remote.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"github.com/ipfs/go-cid"
 	"io"
 	"math/bits"
 	"net/http"
@@ -18,6 +17,7 @@ import (
 	"time"
 
 	"github.com/hashicorp/go-multierror"
+	"github.com/ipfs/go-cid"
 	"golang.org/x/xerrors"
 
 	"github.com/filecoin-project/go-state-types/abi"