Merge pull request #32 from filecoin-project/test/actor-harness

Add actor harness

chain/actors/actor_init.go

@@ -13,13 +13,24 @@ import (
 	hamt "github.com/ipfs/go-hamt-ipld"
 	cbor "github.com/ipfs/go-ipld-cbor"
 	logging "github.com/ipfs/go-log"
+	mh "github.com/multiformats/go-multihash"
 	"github.com/pkg/errors"
 )
 
 var log = logging.Logger("actors")
 
+var EmptyCBOR cid.Cid
+
 func init() {
 	cbor.RegisterCborType(ExecParams{})
+	cbor.RegisterCborType(struct{}{})
+
+	n, err := cbor.WrapObject(map[string]string{}, mh.SHA2_256, -1)
+	if err != nil {
+		panic(err)
+	}
+
+	EmptyCBOR = n.Cid()
 }
 
 type InitActor struct{}
@@ -43,6 +54,14 @@ type ExecParams struct {
 	Params []byte
 }
 
+func (ep *ExecParams) UnmarshalCBOR(b []byte) (int, error) {
+	if err := cbor.DecodeInto(b, ep); err != nil {
+		return 0, err
+	}
+
+	return len(b), nil
+}
+
 func CreateExecParams(act cid.Cid, obj interface{}) ([]byte, error) {
 	encparams, err := cbor.DumpObject(obj)
 	if err != nil {
@@ -94,9 +113,13 @@ func (ia InitActor) Exec(act *types.Actor, vmctx types.VMContext, p *ExecParams)
 	actor := types.Actor{
 		Code:    p.Code,
 		Balance: vmctx.Message().Value,
-		Head:    cid.Undef,
+		Head:    EmptyCBOR,
 		Nonce:   0,
 	}
+	_, err = vmctx.Storage().Put(struct{}{})
+	if err != nil {
+		return types.InvokeRet{}, err
+	}
 
 	// The call to the actors constructor will set up the initial state
 	// from the given parameters, setting `actor.Head` to a new value when successful.
@@ -120,6 +143,11 @@ func (ia InitActor) Exec(act *types.Actor, vmctx types.VMContext, p *ExecParams)
 		return types.InvokeRet{}, errors.Wrap(err, "inserting new actor into state tree")
 	}
 
+	_, _, err = vmctx.Send(idAddr, 0, vmctx.Message().Value, p.Params)
+	if err != nil {
+		return types.InvokeRet{}, err
+	}
+
 	c, err := vmctx.Storage().Put(self)
 	if err != nil {
 		return types.InvokeRet{}, err

chain/actors/actor_miner.go

@@ -4,7 +4,6 @@ import (
 	"github.com/filecoin-project/go-lotus/chain/address"
 	"github.com/filecoin-project/go-lotus/chain/types"
 
-	"github.com/ipfs/go-cid"
 	cbor "github.com/ipfs/go-ipld-cbor"
 	"github.com/libp2p/go-libp2p-core/peer"
 )
@@ -56,7 +55,8 @@ type StorageMinerActorState struct {
 	//NextDoneSet BitField
 
 	// Deals this miner has been slashed for since the last post submission.
-	ArbitratedDeals map[cid.Cid]struct{}
+	//TODO: unsupported map key type "Cid" (if you want to use struct keys, your atlas needs a transform to string)
+	//ArbitratedDeals map[cid.Cid]struct{}
 
 	// Amount of power this miner has.
 	Power types.BigInt
@@ -72,14 +72,21 @@ type StorageMinerActorState struct {
 }
 
 type StorageMinerConstructorParams struct {
+	Owner      address.Address
 	Worker     address.Address
 	SectorSize types.BigInt
 	PeerID     peer.ID
 }
 
+func (sma StorageMinerActor) Exports() []interface{} {
+	return []interface{}{
+		sma.StorageMinerActor,
+	}
+}
+
 func (sma StorageMinerActor) StorageMinerActor(act *types.Actor, vmctx types.VMContext, params *StorageMinerConstructorParams) (types.InvokeRet, error) {
 	var self StorageMinerActorState
-	self.Owner = vmctx.Message().From
+	self.Owner = params.Owner
 	self.Worker = params.Worker
 	self.PeerID = params.PeerID
 	self.SectorSize = params.SectorSize
@@ -90,7 +97,7 @@ func (sma StorageMinerActor) StorageMinerActor(act *types.Actor, vmctx types.VMC
 		return types.InvokeRet{}, err
 	}
 
-	if err := storage.Commit(cid.Undef, c); err != nil {
+	if err := storage.Commit(EmptyCBOR, c); err != nil {
 		return types.InvokeRet{}, err
 	}
 

chain/actors/actor_storagemarket.go

@@ -13,7 +13,6 @@ const SectorSize = 1024
 func init() {
 	cbor.RegisterCborType(StorageMarketState{})
 	cbor.RegisterCborType(CreateStorageMinerParams{})
-	cbor.RegisterCborType(struct{}{})
 }
 
 type StorageMarketActor struct{}
@@ -31,6 +30,7 @@ type StorageMarketState struct {
 }
 
 type CreateStorageMinerParams struct {
+	Owner      address.Address
 	Worker     address.Address
 	SectorSize types.BigInt
 	PeerID     peer.ID
@@ -45,6 +45,7 @@ func (sma StorageMarketActor) CreateStorageMiner(act *types.Actor, vmctx types.V
 	}
 
 	encoded, err := CreateExecParams(StorageMinerCodeCid, &StorageMinerConstructorParams{
+		Owner:      params.Owner,
 		Worker:     params.Worker,
 		SectorSize: params.SectorSize,
 		PeerID:     params.PeerID,

chain/actors/actor_storagemarket_test.go

@@ -0,0 +1,70 @@
+package actors_test
+
+import (
+	"testing"
+
+	. "github.com/filecoin-project/go-lotus/chain/actors"
+	"github.com/filecoin-project/go-lotus/chain/address"
+	"github.com/filecoin-project/go-lotus/chain/types"
+	cbor "github.com/ipfs/go-ipld-cbor"
+)
+
+func TestStorageMarketCreateMiner(t *testing.T) {
+	h := NewHarness(t)
+	var outaddr address.Address
+	h.Steps = []Step{
+		{
+			M: types.Message{
+				To:       StorageMarketAddress,
+				From:     h.From,
+				Method:   1,
+				GasPrice: types.NewInt(1),
+				GasLimit: types.NewInt(1),
+				Value:    types.NewInt(0),
+				Params: h.DumpObject(&CreateStorageMinerParams{
+					Owner:      h.From,
+					Worker:     h.Third,
+					SectorSize: types.NewInt(SectorSize),
+					PeerID:     "fakepeerid",
+				}),
+			},
+			Ret: func(t *testing.T, ret *types.MessageReceipt) {
+				if ret.ExitCode != 0 {
+					t.Fatal("invokation failed: ", ret.ExitCode)
+				}
+
+				var err error
+				outaddr, err = address.NewFromBytes(ret.Return)
+				if err != nil {
+					t.Fatal(err)
+				}
+
+				if outaddr.String() != "t0102" {
+					t.Fatal("hold up")
+				}
+			},
+		},
+	}
+	state := h.Execute()
+	act, err := state.GetActor(outaddr)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if act.Code != StorageMinerCodeCid {
+		t.Fatalf("Expected correct code, got %s, instead of %s", act.Code, StorageMinerCodeCid)
+	}
+	hblock, err := h.bs.Get(act.Head)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	smas := &StorageMinerActorState{}
+	err = cbor.DecodeInto(hblock.RawData(), smas)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if smas.Owner != h.From {
+		t.Fatalf("Owner should be %s, but is %s", h.From, smas.Owner)
+	}
+}

chain/actors/actors_test.go

@@ -58,9 +58,14 @@ func TestVMInvokeMethod(t *testing.T) {
 	vm, addrs := setupVMTestEnv(t)
 	from := addrs[0]
 
+	cenc, err := cbor.DumpObject(StorageMinerConstructorParams{})
+	if err != nil {
+		t.Fatal(err)
+	}
+
 	execparams := &ExecParams{
 		Code:   StorageMinerCodeCid,
-		Params: []byte("cats"),
+		Params: cenc,
 	}
 	enc, err := cbor.DumpObject(execparams)
 	if err != nil {

chain/actors/harness_test.go

@@ -0,0 +1,171 @@
+package actors_test
+
+import (
+	"context"
+	"testing"
+
+	. "github.com/filecoin-project/go-lotus/chain/actors"
+
+	"github.com/filecoin-project/go-lotus/chain"
+	"github.com/filecoin-project/go-lotus/chain/address"
+	"github.com/filecoin-project/go-lotus/chain/types"
+
+	dstore "github.com/ipfs/go-datastore"
+	hamt "github.com/ipfs/go-hamt-ipld"
+	bstore "github.com/ipfs/go-ipfs-blockstore"
+	cbor "github.com/ipfs/go-ipld-cbor"
+)
+
+type Harness struct {
+	Steps []Step
+	From  address.Address
+	Third address.Address
+
+	currStep int
+
+	t      *testing.T
+	actors []address.Address
+	vm     *chain.VM
+	bs     bstore.Blockstore
+	cs     *chain.ChainStore
+}
+
+type Step struct {
+	M   types.Message
+	Ret func(*testing.T, *types.MessageReceipt)
+	Err func(*testing.T, error)
+}
+
+func NewHarness(t *testing.T) *Harness {
+	h := &Harness{t: t}
+	h.bs = bstore.NewBlockstore(dstore.NewMapDatastore())
+
+	from := blsaddr(0)
+	maddr := blsaddr(1)
+	third := blsaddr(1)
+
+	actors := map[address.Address]types.BigInt{
+		from:  types.NewInt(1000000),
+		maddr: types.NewInt(0),
+		third: types.NewInt(1000),
+	}
+	st, err := chain.MakeInitialStateTree(h.bs, actors)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	stateroot, err := st.Flush()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	h.cs = chain.NewChainStore(h.bs, nil)
+
+	h.vm, err = chain.NewVM(stateroot, 1, maddr, h.cs)
+	if err != nil {
+		t.Fatal(err)
+	}
+	h.actors = []address.Address{from, maddr, third}
+	h.From = from
+	h.Third = third
+	return h
+}
+
+func (h *Harness) Execute() *chain.StateTree {
+	for i, step := range h.Steps {
+		h.currStep = i
+		ret, err := h.vm.ApplyMessage(&step.M)
+		if step.Err != nil {
+			step.Err(h.t, err)
+		} else {
+			h.NoError(h.t, err)
+		}
+		step.Ret(h.t, ret)
+	}
+	stateroot, err := h.vm.Flush(context.TODO())
+	if err != nil {
+		h.t.Fatalf("%+v", err)
+	}
+	cst := hamt.CSTFromBstore(h.bs)
+	state, err := chain.LoadStateTree(cst, stateroot)
+	if err != nil {
+		h.t.Fatal(err)
+	}
+	return state
+}
+
+func (h *Harness) DumpObject(obj interface{}) []byte {
+	enc, err := cbor.DumpObject(obj)
+	if err != nil {
+		h.t.Fatal(err)
+	}
+	return enc
+}
+func (h *Harness) NoError(t *testing.T, err error) {
+	if err != nil {
+		t.Fatalf("Error in step %d: %s", h.currStep, err)
+	}
+}
+
+func TestVMInvokeHarness(t *testing.T) {
+	h := NewHarness(t)
+	var outaddr address.Address
+	h.Steps = []Step{
+		{
+			M: types.Message{
+				To:     InitActorAddress,
+				From:   h.From,
+				Method: 1,
+				Params: h.DumpObject(
+					&ExecParams{
+						Code: StorageMinerCodeCid,
+						Params: h.DumpObject(&StorageMinerConstructorParams{
+							Owner: h.From,
+						}),
+					}),
+				GasPrice: types.NewInt(1),
+				GasLimit: types.NewInt(1),
+				Value:    types.NewInt(0),
+			},
+			Ret: func(t *testing.T, ret *types.MessageReceipt) {
+				if ret.ExitCode != 0 {
+					t.Fatal("invocation failed: ", ret.ExitCode)
+				}
+
+				var err error
+				outaddr, err = address.NewFromBytes(ret.Return)
+				if err != nil {
+					t.Fatal(err)
+				}
+
+				if outaddr.String() != "t0102" {
+					t.Fatal("hold up")
+				}
+			},
+			Err: h.NoError,
+		},
+	}
+
+	state := h.Execute()
+	act, err := state.GetActor(outaddr)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if act.Code != StorageMinerCodeCid {
+		t.Fatalf("Expected correct code, got %s, instead of %s", act.Code, StorageMinerCodeCid)
+	}
+	hblock, err := h.bs.Get(act.Head)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	smas := &StorageMinerActorState{}
+	err = cbor.DecodeInto(hblock.RawData(), smas)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if smas.Owner != h.From {
+		t.Fatalf("Owner should be %s, but is %s", h.From, smas.Owner)
+	}
+}

chain/address/constants.go

@@ -66,7 +66,7 @@ var (
 )
 
 // UndefAddressString is the string used to represent an empty address when encoded to a string.
-var UndefAddressString = "empty"
+var UndefAddressString = "<empty>"
 
 // PayloadHashLength defines the hash length taken over addresses using the Actor and SECP256K1 protocols.
 const PayloadHashLength = 20

chain/invoker.go

@@ -1,7 +1,6 @@
 package chain
 
 import (
-	"errors"
 	"fmt"
 	"reflect"
 
@@ -26,6 +25,7 @@ func newInvoker() *invoker {
 	// add builtInCode using: register(cid, singleton)
 	inv.register(actors.InitActorCodeCid, actors.InitActor{})
 	inv.register(actors.StorageMarketActorCodeCid, actors.StorageMarketActor{})
+	inv.register(actors.StorageMinerCodeCid, actors.StorageMinerActor{})
 
 	return inv
 }
@@ -34,7 +34,7 @@ func (inv *invoker) Invoke(act *types.Actor, vmctx *VMContext, method uint64, pa
 
 	code, ok := inv.builtInCode[act.Code]
 	if !ok {
-		return types.InvokeRet{}, errors.New("no code for actor")
+		return types.InvokeRet{}, fmt.Errorf("no code for actor %s", act.Code)
 	}
 	if method >= uint64(len(code)) || code[method] == nil {
 		return types.InvokeRet{}, fmt.Errorf("no method %d on actor", method)

chain/types/vmcontext.go

@@ -24,6 +24,7 @@ type StateTree interface {
 
 type VMContext interface {
 	Message() *Message
+	Origin() address.Address
 	Ipld() *hamt.CborIpldStore
 	Send(to address.Address, method uint64, value BigInt, params []byte) ([]byte, uint8, error)
 	BlockHeight() uint64

chain/vm.go

@@ -14,7 +14,7 @@ import (
 	hamt "github.com/ipfs/go-hamt-ipld"
 	ipld "github.com/ipfs/go-ipld-format"
 	dag "github.com/ipfs/go-merkledag"
-	"github.com/pkg/errors"
+	"golang.org/x/xerrors"
 )
 
 type VMContext struct {
@@ -27,6 +27,9 @@ type VMContext struct {
 	// root cid of the state of the actor this invocation will be on
 	sroot cid.Cid
 
+	// address that started invokation chain
+	origin address.Address
+
 	storage types.Storage
 }
 
@@ -72,9 +75,15 @@ func (vmc *VMContext) Ipld() *hamt.CborIpldStore {
 	return vmc.cst
 }
 
+func (vmc *VMContext) Origin() address.Address {
+	return vmc.origin
+}
+
 // Send allows the current execution context to invoke methods on other actors in the system
 func (vmc *VMContext) Send(to address.Address, method uint64, value types.BigInt, params []byte) ([]byte, uint8, error) {
+
 	msg := &types.Message{
+		From:   vmc.msg.To,
 		To:     to,
 		Method: method,
 		Value:  value,
@@ -86,9 +95,16 @@ func (vmc *VMContext) Send(to address.Address, method uint64, value types.BigInt
 		return nil, 0, err
 	}
 
-	nvmctx := vmc.vm.makeVMContext(toAct.Head, msg)
+	nvmctx := vmc.vm.makeVMContext(toAct.Head, vmc.origin, msg)
 
-	return vmc.vm.Invoke(toAct, nvmctx, method, params)
+	res, ret, err := vmc.vm.Invoke(toAct, nvmctx, method, params)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	toAct.Head = nvmctx.Storage().GetHead()
+
+	return res, ret, err
 }
 
 // BlockHeight returns the height of the block this message was added to the chain in
@@ -108,7 +124,7 @@ func (vmc *VMContext) StateTree() (types.StateTree, error) {
 	return vmc.state, nil
 }
 
-func (vm *VM) makeVMContext(sroot cid.Cid, msg *types.Message) *VMContext {
+func (vm *VM) makeVMContext(sroot cid.Cid, origin address.Address, msg *types.Message) *VMContext {
 	cst := hamt.CSTFromBstore(vm.cs.bs)
 
 	return &VMContext{
@@ -116,6 +132,7 @@ func (vm *VM) makeVMContext(sroot cid.Cid, msg *types.Message) *VMContext {
 		state:  vm.cstate,
 		sroot:  sroot,
 		msg:    msg,
+		origin: origin,
 		height: vm.blockHeight,
 		cst:    cst,
 		storage: &storage{
@@ -159,17 +176,17 @@ func (vm *VM) ApplyMessage(msg *types.Message) (*types.MessageReceipt, error) {
 	st.Snapshot()
 	fromActor, err := st.GetActor(msg.From)
 	if err != nil {
-		return nil, errors.Wrap(err, "from actor not found")
+		return nil, xerrors.Errorf("from actor not found: %w", err)
 	}
 
 	gascost := types.BigMul(msg.GasLimit, msg.GasPrice)
 	totalCost := types.BigAdd(gascost, msg.Value)
 	if types.BigCmp(fromActor.Balance, totalCost) < 0 {
-		return nil, fmt.Errorf("not enough funds")
+		return nil, xerrors.Errorf("not enough funds")
 	}
 
 	if msg.Nonce != fromActor.Nonce {
-		return nil, fmt.Errorf("invalid nonce")
+		return nil, xerrors.Errorf("invalid nonce")
 	}
 	fromActor.Nonce++
 
@@ -187,11 +204,11 @@ func (vm *VM) ApplyMessage(msg *types.Message) (*types.MessageReceipt, error) {
 	}
 
 	if err := DeductFunds(fromActor, totalCost); err != nil {
-		return nil, errors.Wrap(err, "failed to deduct funds")
+		return nil, xerrors.Errorf("failed to deduct funds: %w", err)
 	}
 	DepositFunds(toActor, msg.Value)
 
-	vmctx := vm.makeVMContext(toActor.Head, msg)
+	vmctx := vm.makeVMContext(toActor.Head, msg.From, msg)
 
 	var errcode byte
 	var ret []byte
@@ -218,7 +235,7 @@ func (vm *VM) ApplyMessage(msg *types.Message) (*types.MessageReceipt, error) {
 	// reward miner gas fees
 	miner, err := st.GetActor(vm.blockMiner)
 	if err != nil {
-		return nil, errors.Wrap(err, "getting block miner actor failed")
+		return nil, xerrors.Errorf("getting block miner actor failed: %w", err)
 	}
 
 	gasReward := types.BigMul(msg.GasPrice, vmctx.GasUsed())
@@ -237,16 +254,47 @@ func (vm *VM) Flush(ctx context.Context) (cid.Cid, error) {
 
 	root, err := vm.cstate.Flush()
 	if err != nil {
-		return cid.Undef, err
+		return cid.Undef, xerrors.Errorf("flushing vm: %w", err)
 	}
 
-	if err := ipld.Copy(ctx, from, to, root); err != nil {
-		return cid.Undef, err
+	if err := Copy(ctx, from, to, root); err != nil {
+		return cid.Undef, xerrors.Errorf("copying tree: %w", err)
 	}
 
 	return root, nil
 }
 
+func Copy(ctx context.Context, from, to ipld.DAGService, root cid.Cid) error {
+	if root.Prefix().MhType == 0 {
+		// identity cid, skip
+		return nil
+	}
+	node, err := from.Get(ctx, root)
+	if err != nil {
+		return xerrors.Errorf("get %s failed: %w", root, err)
+	}
+	links := node.Links()
+	for _, link := range links {
+		_, err := to.Get(ctx, link.Cid)
+		switch err {
+		default:
+			return err
+		case nil:
+			continue
+		case ipld.ErrNotFound:
+			// continue
+		}
+		if err := Copy(ctx, from, to, link.Cid); err != nil {
+			return err
+		}
+	}
+	err = to.Add(ctx, node)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 func (vm *VM) TransferFunds(from, to address.Address, amt types.BigInt) error {
 	if from == to {
 		return nil
@@ -263,7 +311,7 @@ func (vm *VM) TransferFunds(from, to address.Address, amt types.BigInt) error {
 	}
 
 	if err := DeductFunds(fromAct, amt); err != nil {
-		return errors.Wrap(err, "failed to deduct funds")
+		return xerrors.Errorf("failed to deduct funds: %w", err)
 	}
 	DepositFunds(toAct, amt)
 

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/gorilla/websocket v1.4.0
 	github.com/ipfs/go-bitswap v0.1.5
 	github.com/ipfs/go-block-format v0.0.2
-	github.com/ipfs/go-blockservice v0.1.0
+	github.com/ipfs/go-blockservice v0.1.2
 	github.com/ipfs/go-cid v0.0.2
 	github.com/ipfs/go-datastore v0.0.5
 	github.com/ipfs/go-ds-badger v0.0.5

go.sum

@@ -1,18 +1,15 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/AndreasBriese/bbloom v0.0.0-20180913140656-343706a395b7 h1:PqzgE6kAMi81xWQA2QIVxjWkFHptGgC547vchpUbtFo=
 github.com/AndreasBriese/bbloom v0.0.0-20180913140656-343706a395b7/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
 github.com/AndreasBriese/bbloom v0.0.0-20190306092124-e2d15f34fcf9 h1:HD8gA2tkByhMAwYaFAX9w2l7vxvBQ5NMoxDrkhqhtn4=
 github.com/AndreasBriese/bbloom v0.0.0-20190306092124-e2d15f34fcf9/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/Kubuxu/go-os-helper v0.0.1 h1:EJiD2VUQyh5A9hWJLmc6iWg6yIcJ7jpBcwC8GMGXfDk=
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@@ -36,19 +33,16 @@ github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwc
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-github.com/dgryski/go-farm v0.0.0-20190104051053-3adb47b1fb0f h1:dDxpBYafY/GYpcl+LS4Bn3ziLPuEdGRkRjYAbSlWxSA=
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@@ -67,18 +61,15 @@ github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfb
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-github.com/golang/protobuf v1.3.0 h1:kbxbvI4Un1LUWKxufD+BiE6AEExYYgkQLQmLFqA1LFk=
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-github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
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@@ -104,13 +95,15 @@ github.com/ipfs/bbloom v0.0.1 h1:s7KkiBPfxCeDVo47KySjK0ACPc5GJRUxFpdyWEuDjhw=
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+github.com/ipfs/go-bitswap v0.1.3/go.mod h1:YEQlFy0kkxops5Vy+OxWdRSEZIoS7I7KDIwoa5Chkps=
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-github.com/ipfs/go-blockservice v0.1.0 h1:dh2i7xjMbCtf0ZSMyQAF2qpV/pEEmM7yVpQ00+gik6U=
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@@ -119,7 +112,6 @@ github.com/ipfs/go-datastore v0.0.5 h1:q3OfiOZV5rlsK1H5V8benjeUApRfMGs4Mrhmr6Nri
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-github.com/ipfs/go-ds-badger v0.0.2 h1:7ToQt7QByBhOTuZF2USMv+PGlMcBC7FW7FdgQ4FCsoo=
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@@ -159,11 +151,9 @@ github.com/ipfs/go-ipfs-util v0.0.1/go.mod h1:spsl5z8KUnrve+73pOhSVZND1SIxPW5RyB
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-github.com/ipfs/go-log v0.0.1 h1:9XTUN/rW64BCG1YhPK9Hoy3q8nr4gOmHHBpgFdfw6Lc=
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@@ -181,8 +171,6 @@ github.com/ipfs/go-unixfs v0.1.0/go.mod h1:lysk5ELhOso8+Fed9U1QTGey2ocsfaZ18h0NC
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-github.com/ipsn/go-secp256k1 v0.0.0-20180726113642-9d62b9f0bc52 h1:QG4CGBqCeuBo6aZlGAamSkxWdgWfZGeE49eUOWJPA4c=
-github.com/ipsn/go-secp256k1 v0.0.0-20180726113642-9d62b9f0bc52/go.mod h1:fdg+/X9Gg4AsAIzWpEHwnqd+QY3b7lajxyjE1m4hkq4=
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@@ -198,7 +186,6 @@ github.com/jbenet/goprocess v0.1.3 h1:YKyIEECS/XvcfHtBzxtjBBbWK+MbvA6dG8ASiqwvr1
 github.com/jbenet/goprocess v0.1.3/go.mod h1:5yspPrukOVuOLORacaBi858NqyClJPQxYZlqdZVfqY4=
 github.com/jessevdk/go-flags v0.0.0-20141203071132-1679536dcc89/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 github.com/jrick/logrotate v1.0.0/go.mod h1:LNinyqDIJnpAur+b8yyulnQw/wDuN1+BYKlTRt3OuAQ=
-github.com/jtolds/gls v4.2.1+incompatible h1:fSuqC+Gmlu6l/ZYAoZzx2pyucC8Xza35fpRVWLVmUEE=
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@@ -219,7 +206,6 @@ github.com/libp2p/go-buffer-pool v0.0.2 h1:QNK2iAFa8gjAe1SPz6mHSMuCcjs+X1wlHzeOS
 github.com/libp2p/go-buffer-pool v0.0.2/go.mod h1:MvaB6xw5vOrDl8rYZGLFdKAuk/hRoRZd1Vi32+RXyFM=
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-github.com/libp2p/go-eventbus v0.0.2 h1:L9eslON8FjFBJlyUs9fyEZKnxSqZd2AMDUNldPrqmZI=
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@@ -261,10 +247,8 @@ github.com/libp2p/go-libp2p-nat v0.0.4 h1:+KXK324yaY701On8a0aGjTnw8467kW3ExKcqW2
 github.com/libp2p/go-libp2p-nat v0.0.4/go.mod h1:N9Js/zVtAXqaeT99cXgTV9e75KpnWCvVOiGzlcHmBbY=
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-github.com/libp2p/go-libp2p-peer v0.2.0 h1:EQ8kMjaCUwt/Y5uLgjT8iY2qg0mGUT0N1zUjer50DsY=
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 github.com/libp2p/go-libp2p-peerstore v0.1.0/go.mod h1:2CeHkQsr8svp4fZ+Oi9ykN1HBb6u0MOvdJ7YIsmcwtY=
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@@ -282,7 +266,6 @@ github.com/libp2p/go-libp2p-routing-helpers v0.1.0 h1:BaFvpyv8TyhCN7TihawTiKuzeu
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 github.com/libp2p/go-libp2p-secio v0.1.0/go.mod h1:tMJo2w7h3+wN4pgU2LSYeiKPrfqBgkOsdiKK77hE7c8=
-github.com/libp2p/go-libp2p-swarm v0.1.0 h1:HrFk2p0awrGEgch9JXK/qp/hfjqQfgNxpLWnCiWPg5s=
 github.com/libp2p/go-libp2p-swarm v0.1.0/go.mod h1:wQVsCdjsuZoc730CgOvh5ox6K8evllckjebkdiY5ta4=
 github.com/libp2p/go-libp2p-swarm v0.1.1 h1:QW7pjyTRIxt9yyBid52YmMRGtkFXUE/rbEVWsQ0ae+w=
 github.com/libp2p/go-libp2p-swarm v0.1.1/go.mod h1:4NVJaLwq/dr5kEq79Jo6pMin7ZFwLx73ln1FTefR91Q=
@@ -297,14 +280,12 @@ github.com/libp2p/go-libp2p-transport-upgrader v0.1.1/go.mod h1:IEtA6or8JUbsV07q
 github.com/libp2p/go-libp2p-yamux v0.2.0/go.mod h1:Db2gU+XfLpm6E4rG5uGCFX6uXA8MEXOxFcRoXUODaK8=
 github.com/libp2p/go-libp2p-yamux v0.2.1 h1:Q3XYNiKCC2vIxrvUJL+Jg1kiyeEaIDNKLjgEjo3VQdI=
 github.com/libp2p/go-libp2p-yamux v0.2.1/go.mod h1:1FBXiHDk1VyRM1C0aez2bCfHQ4vMZKkAQzZbkSQt5fI=
-github.com/libp2p/go-maddr-filter v0.0.4 h1:hx8HIuuwk34KePddrp2mM5ivgPkZ09JH4AvsALRbFUs=
 github.com/libp2p/go-maddr-filter v0.0.4/go.mod h1:6eT12kSQMA9x2pvFQa+xesMKUBlj9VImZbj3B9FBH/Q=
 github.com/libp2p/go-maddr-filter v0.0.5 h1:CW3AgbMO6vUvT4kf87y4N+0P8KUl2aqLYhrGyDUbLSg=
 github.com/libp2p/go-maddr-filter v0.0.5/go.mod h1:Jk+36PMfIqCJhAnaASRH83bdAvfDRp/w6ENFaC9bG+M=
 github.com/libp2p/go-mplex v0.0.3/go.mod h1:pK5yMLmOoBR1pNCqDlA2GQrdAVTMkqFalaTWe7l4Yd0=
 github.com/libp2p/go-mplex v0.1.0 h1:/nBTy5+1yRyY82YaO6HXQRnO5IAGsXTjEJaR3LdTPc0=
 github.com/libp2p/go-mplex v0.1.0/go.mod h1:SXgmdki2kwCUlCCbfGLEgHjC4pFqhTp0ZoV6aiKgxDU=
-github.com/libp2p/go-msgio v0.0.2 h1:ivPvEKHxmVkTClHzg6RXTYHqaJQ0V9cDbq+6lKb3UV0=
 github.com/libp2p/go-msgio v0.0.2/go.mod h1:63lBBgOTDKQL6EWazRMCwXsEeEeK9O2Cd+0+6OOuipQ=
 github.com/libp2p/go-msgio v0.0.3/go.mod h1:63lBBgOTDKQL6EWazRMCwXsEeEeK9O2Cd+0+6OOuipQ=
 github.com/libp2p/go-msgio v0.0.4 h1:agEFehY3zWJFUHK6SEMR7UYmk2z6kC3oeCM7ybLhguA=
@@ -315,7 +296,6 @@ github.com/libp2p/go-reuseport v0.0.1 h1:7PhkfH73VXfPJYKQ6JwS5I/eVcoyYi9IMNGc6FW
 github.com/libp2p/go-reuseport v0.0.1/go.mod h1:jn6RmB1ufnQwl0Q1f+YxAj8isJgDCQzaaxIFYDhcYEA=
 github.com/libp2p/go-reuseport-transport v0.0.2 h1:WglMwyXyBu61CMkjCCtnmqNqnjib0GIEjMiHTwR/KN4=
 github.com/libp2p/go-reuseport-transport v0.0.2/go.mod h1:YkbSDrvjUVDL6b8XqriyA20obEtsW9BLkuOUyQAOCbs=
-github.com/libp2p/go-stream-muxer v0.0.1 h1:Ce6e2Pyu+b5MC1k3eeFtAax0pW4gc6MosYSLV05UeLw=
 github.com/libp2p/go-stream-muxer v0.0.1/go.mod h1:bAo8x7YkSpadMTbtTaxGVHWUQsR/l5MEaHbKaliuT14=
 github.com/libp2p/go-stream-muxer-multistream v0.2.0 h1:714bRJ4Zy9mdhyTLJ+ZKiROmAFwUHpeRidG+q7LTQOg=
 github.com/libp2p/go-stream-muxer-multistream v0.2.0/go.mod h1:j9eyPol/LLRqT+GPLSxvimPhNph4sfYfMoDPd7HkzIc=
@@ -332,13 +312,9 @@ github.com/lucas-clemente/quic-go v0.11.2/go.mod h1:PpMmPfPKO9nKJ/psF49ESTAGQSdf
 github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
 github.com/marten-seemann/qtls v0.2.3 h1:0yWJ43C62LsZt08vuQJDK1uC1czUc3FJeCLPoNAI4vA=
 github.com/marten-seemann/qtls v0.2.3/go.mod h1:xzjG7avBwGGbdZ8dTGxlBnLArsVKLvwmjgmPuiQEcYk=
-github.com/mattn/go-colorable v0.1.1 h1:G1f5SKeVxmagw/IyvzvtZE4Gybcc4Tr1tf7I8z0XgOg=
 github.com/mattn/go-colorable v0.1.1/go.mod h1:FuOcm+DKB9mbwrcAfNl7/TZVBZ6rcnceauSikq3lYCQ=
-github.com/mattn/go-colorable v0.1.2 h1:/bC9yWikZXAL9uJdulbSfyVNIR3n3trXl+v8+1sx8mU=
 github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
-github.com/mattn/go-isatty v0.0.5 h1:tHXDdz1cpzGaovsTB+TVB8q90WEokoVmfMqoVcrLUgw=
 github.com/mattn/go-isatty v0.0.5/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
-github.com/mattn/go-isatty v0.0.8 h1:HLtExJ+uU2HOZ+wI0Tt5DtUDrx8yhUqDcp7fYERX4CE=
 github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
 github.com/miekg/dns v1.1.12 h1:WMhc1ik4LNkTg8U9l3hI1LvxKmIL+f1+WV/SZtCbDDA=
 github.com/miekg/dns v1.1.12/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
@@ -362,7 +338,6 @@ github.com/multiformats/go-multiaddr v0.0.2/go.mod h1:xKVEak1K9cS1VdmPZW3LSIb6lg
 github.com/multiformats/go-multiaddr v0.0.4 h1:WgMSI84/eRLdbptXMkMWDXPjPq7SPLIgGUVm2eroyU4=
 github.com/multiformats/go-multiaddr v0.0.4/go.mod h1:xKVEak1K9cS1VdmPZW3LSIb6lgmoS58qz/pzqmAxV44=
 github.com/multiformats/go-multiaddr-dns v0.0.1/go.mod h1:9kWcqw/Pj6FwxAwW38n/9403szc57zJPs45fmnznu3Q=
-github.com/multiformats/go-multiaddr-dns v0.0.2 h1:/Bbsgsy3R6e3jf2qBahzNHzww6usYaZ0NhNH3sqdFS8=
 github.com/multiformats/go-multiaddr-dns v0.0.2/go.mod h1:9kWcqw/Pj6FwxAwW38n/9403szc57zJPs45fmnznu3Q=
 github.com/multiformats/go-multiaddr-dns v0.0.3 h1:P19q/k9jwmtgh+qXFkKfgFM7rCg/9l5AVqh7VNxSXhs=
 github.com/multiformats/go-multiaddr-dns v0.0.3/go.mod h1:9kWcqw/Pj6FwxAwW38n/9403szc57zJPs45fmnznu3Q=
@@ -384,7 +359,6 @@ github.com/onsi/ginkgo v1.8.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+W
 github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
 github.com/onsi/gomega v1.5.0 h1:izbySO9zDPmjJ8rDjLvkA2zJHIo+HkYXHnf7eN7SSyo=
 github.com/onsi/gomega v1.5.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
-github.com/opentracing/opentracing-go v1.0.2 h1:3jA2P6O1F9UOrWVpwrIo17pu01KWvNWg4X946/Y5Zwg=
 github.com/opentracing/opentracing-go v1.0.2/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
 github.com/opentracing/opentracing-go v1.1.0 h1:pWlfV3Bxv7k65HYwkikxat0+s3pV4bsqf19k25Ur8rU=
 github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
@@ -394,16 +368,13 @@ github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/polydawn/refmt v0.0.0-20190221155625-df39d6c2d992 h1:bzMe+2coZJYHnhGgVlcQKuRy4FSny4ds8dLQjw5P1XE=
 github.com/polydawn/refmt v0.0.0-20190221155625-df39d6c2d992/go.mod h1:uIp+gprXxxrWSjjklXD+mN4wed/tMfjMMmN/9+JsA9o=
 github.com/polydawn/refmt v0.0.0-20190408063855-01bf1e26dd14 h1:2m16U/rLwVaRdz7ANkHtHTodP3zTP3N451MADg64x5k=
 github.com/polydawn/refmt v0.0.0-20190408063855-01bf1e26dd14/go.mod h1:uIp+gprXxxrWSjjklXD+mN4wed/tMfjMMmN/9+JsA9o=
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
-github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykElWQ6/NYmHa3jpm/yHnI4xSofP+UP6SpjHcSeM=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
 github.com/smartystreets/assertions v1.0.0 h1:UVQPSSmc3qtTi+zPPkCXvZX9VvW/xT/NsRvKfwY81a8=
 github.com/smartystreets/assertions v1.0.0/go.mod h1:kHHU4qYBaI3q23Pp3VPrmWhuIUrLW/7eUrw0BU5VaoM=
-github.com/smartystreets/goconvey v0.0.0-20190222223459-a17d461953aa h1:E+gaaifzi2xF65PbDmuKI3PhLWY6G5opMLniFq8vmXA=
 github.com/smartystreets/goconvey v0.0.0-20190222223459-a17d461953aa/go.mod h1:2RVY1rIf+2J2o/IM9+vPq9RzmHDSseB7FoXiSNIUsoU=
 github.com/smartystreets/goconvey v0.0.0-20190330032615-68dc04aab96a h1:pa8hGb/2YqsZKovtsgrwcDH1RZhVbTKCjLp47XpqCDs=
 github.com/smartystreets/goconvey v0.0.0-20190330032615-68dc04aab96a/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
@@ -427,7 +398,6 @@ github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/syndtr/goleveldb v1.0.0/go.mod h1:ZVVdQEZoIme9iO1Ch2Jdy24qqXrMMOU6lpPAyBWyWuQ=
 github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
-github.com/warpfork/go-wish v0.0.0-20180510122957-5ad1f5abf436 h1:qOpVTI+BrstcjTZLm2Yz/3sOnqkzj3FQoh0g+E5s3Gc=
 github.com/warpfork/go-wish v0.0.0-20180510122957-5ad1f5abf436/go.mod h1:x6AKhvSSexNrVSrViXSHUEbICjmGXhtgABaHIySUSGw=
 github.com/warpfork/go-wish v0.0.0-20190328234359-8b3e70f8e830 h1:8kxMKmKzXXL4Ru1nyhvdms/JjWt+3YLpvRb/bAjO/y0=
 github.com/warpfork/go-wish v0.0.0-20190328234359-8b3e70f8e830/go.mod h1:x6AKhvSSexNrVSrViXSHUEbICjmGXhtgABaHIySUSGw=
@@ -437,7 +407,6 @@ github.com/whyrusleeping/chunker v0.0.0-20181014151217-fe64bd25879f h1:jQa4QT2UP
 github.com/whyrusleeping/chunker v0.0.0-20181014151217-fe64bd25879f/go.mod h1:p9UJB6dDgdPgMJZs7UjUOdulKyRr9fqkS+6JKAInPy8=
 github.com/whyrusleeping/go-keyspace v0.0.0-20160322163242-5b898ac5add1 h1:EKhdznlJHPMoKr0XTrX+IlJs1LH3lyx2nfr1dOlZ79k=
 github.com/whyrusleeping/go-keyspace v0.0.0-20160322163242-5b898ac5add1/go.mod h1:8UvriyWtv5Q5EOgjHaSseUEdkQfvwFv1I/In/O2M9gc=
-github.com/whyrusleeping/go-logging v0.0.0-20170515211332-0457bb6b88fc h1:9lDbC6Rz4bwmou+oE6Dt4Cb2BGMur5eR/GYptkKUVHo=
 github.com/whyrusleeping/go-logging v0.0.0-20170515211332-0457bb6b88fc/go.mod h1:bopw91TMyo8J3tvftk8xmU2kPmlrt4nScJQZU2hE5EM=
 github.com/whyrusleeping/go-notifier v0.0.0-20170827234753-097c5d47330f h1:M/lL30eFZTKnomXY6huvM6G0+gVquFNf6mxghaWlFUg=
 github.com/whyrusleeping/go-notifier v0.0.0-20170827234753-097c5d47330f/go.mod h1:cZNvX9cFybI01GriPRMXDtczuvUhgbcYr9iCGaNlRv8=
@@ -454,7 +423,6 @@ github.com/whyrusleeping/sharray v0.0.0-20190520213710-bd32aab369f8/go.mod h1:c1
 github.com/whyrusleeping/timecache v0.0.0-20160911033111-cfcb2f1abfee h1:lYbXeSvJi5zk5GLKVuid9TVjS9a0OmLIDKTfoZBL6Ow=
 github.com/whyrusleeping/timecache v0.0.0-20160911033111-cfcb2f1abfee/go.mod h1:m2aV4LZI4Aez7dP5PMyVKEHhUyEJ/RjmPEDOpDvudHg=
 github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
-go.opencensus.io v0.21.0 h1:mU6zScU4U1YAFPHEHYk+3JC4SY7JxgkqS10ZOSyksNg=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0 h1:C9hSCOW830chIVkdja34wa6Ky+IzWllkUinR+BtRZd4=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
@@ -470,7 +438,6 @@ go.uber.org/multierr v1.1.0 h1:HoEmRHQPVSqub6w2z2d2EOVs2fjyFRGyofhKuyDq0QI=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
 go.uber.org/zap v1.10.0 h1:ORx85nbTijNz8ljznvCMR1ZBIPKFn3jQrag10X2AsuM=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
-go4.org v0.0.0-20190218023631-ce4c26f7be8e h1:m9LfARr2VIOW0vsV19kEKp/sWQvZnGobA8JHui/XJoY=
 go4.org v0.0.0-20190218023631-ce4c26f7be8e/go.mod h1:MkTOUMDaeVYJUOUsaDXIhWPZYa1yOyC1qaOBpL57BhE=
 go4.org v0.0.0-20190313082347-94abd6928b1d h1:JkRdGP3zvTtTbabWSAC6n67ka30y7gOzWAah4XYJSfw=
 go4.org v0.0.0-20190313082347-94abd6928b1d/go.mod h1:MkTOUMDaeVYJUOUsaDXIhWPZYa1yOyC1qaOBpL57BhE=
@@ -498,18 +465,15 @@ golang.org/x/net v0.0.0-20181217023233-e147a9138326/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190227160552-c95aed5357e7/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3 h1:0GoQqolDA55aaLxZyTzK/Y2ePZzZTUrRacwib7cNsYQ=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
-golang.org/x/net v0.0.0-20190611141213-3f473d35a33a h1:+KkCgOMgnKSgenxTBoiwkMqTiouMIy/3o8RLdmSbGoY=
 golang.org/x/net v0.0.0-20190611141213-3f473d35a33a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859 h1:R/3boaszxrf1GEUWTVDzSKVwLmSJpwZ1yqXm8j0v2QI=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6 h1:bjcUS9ztw9kFmmIxJInhon/0Is3p+EHBKNgquIzo1OI=
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58 h1:8gQV6CLnAEikrhgkHFbMAEhagSSnXWGV915qUMm9mrU=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -522,17 +486,13 @@ golang.org/x/sys v0.0.0-20190219092855-153ac476189d/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190228124157-a34e9553db1e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190302025703-b6889370fb10/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190412213103-97732733099d h1:+R4KGOnez64A81RvjARKc4UT5/tI9ujCIVX+P5KiHuI=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190524122548-abf6ff778158/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190526052359-791d8a0f4d09 h1:IlD35wZE03o2qJy2o37WIskL33b7PT6cHdGnE8bieZs=
 golang.org/x/sys v0.0.0-20190526052359-791d8a0f4d09/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190610200419-93c9922d18ae h1:xiXzMMEQdQcric9hXtr1QU98MHunKK7OTtsoU6bYWs4=
 golang.org/x/sys v0.0.0-20190610200419-93c9922d18ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190626221950-04f50cda93cb h1:fgwFCsaw9buMuxNd6+DQfAuSFqbNiQZpcgJQAgJsK6k=
 golang.org/x/sys v0.0.0-20190626221950-04f50cda93cb/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
@@ -561,7 +521,6 @@ gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkep
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/urfave/cli.v2 v2.0.0-20180128182452-d3ae77c26ac8 h1:Ggy3mWN4l3PUFPfSG0YB3n5fVYggzysUmiUQ89SnX6Y=
 gopkg.in/urfave/cli.v2 v2.0.0-20180128182452-d3ae77c26ac8/go.mod h1:cKXr3E0k4aosgycml1b5z33BVV6hai1Kh7uDgFOkbcs=
-gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=