R4R: Update tendermint dependency and use go mod

Makefile

@@ -1,17 +1,9 @@
-GOTOOLS := github.com/golang/dep/cmd/dep
-
 PDFFLAGS := -pdf --nodefraction=0.1
 
-all: get_vendor_deps test
+all: test
 
 test:
-	GOCACHE=off go test -v --race
-
-tools:
-	go get -u -v $(GOTOOLS)
-
-get_vendor_deps: tools
-	dep ensure
+	go test -v --race
 
 # bench is the basic tests that shouldn't crash an aws instance
 bench:

basic_test.go

@@ -8,7 +8,7 @@ import (
 
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
-	"github.com/tendermint/tendermint/libs/db"
+	"github.com/tendermint/tm-db"
 )
 
 func TestBasic(t *testing.T) {

benchmarks/bench_test.go

@@ -8,7 +8,7 @@ import (
 	"testing"
 
 	"github.com/tendermint/iavl"
-	db "github.com/tendermint/tendermint/libs/db"
+	db "github.com/tendermint/tm-db"
 )
 
 const historySize = 20

doc.go

@@ -5,7 +5,7 @@
 // Basic usage of MutableTree.
 //
 //  import "github.com/tendermint/iavl"
-//  import "github.com/tendermint/tendermint/libs/db"
+//  import "github.com/tendermint/tm-db"
 //  ...
 //
 //  tree := iavl.NewMutableTree(db.NewMemDB(), 128)

go.mod

@@ -0,0 +1,12 @@
+module github.com/tendermint/iavl
+
+require (
+	github.com/go-logfmt/logfmt v0.4.0 // indirect
+	github.com/stretchr/testify v1.3.0
+	github.com/tendermint/go-amino v0.14.1
+	github.com/tendermint/tendermint v0.31.0
+	github.com/tendermint/tm-db v0.1.1
+	golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2
+)
+
+replace github.com/tendermint/tendermint => github.com/irisnet/tendermint v0.22.3-0.20190905014850-7daf474ce5c0

go.sum

@@ -0,0 +1,101 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
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+github.com/btcsuite/btcutil v0.0.0-20180524032703-d4cc87b86016/go.mod h1:+5NJ2+qvTyV9exUAL/rxXi3DcLg2Ts+ymUAY5y4NvMg=
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immutable_tree.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"strings"
 
-	dbm "github.com/tendermint/tendermint/libs/db"
+	dbm "github.com/tendermint/tm-db"
 )
 
 // ImmutableTree is a container for an immutable AVL+ ImmutableTree. Changes are performed by

mutable_tree.go

@@ -5,19 +5,19 @@ import (
 	"fmt"
 
 	cmn "github.com/tendermint/tendermint/libs/common"
-	dbm "github.com/tendermint/tendermint/libs/db"
+	dbm "github.com/tendermint/tm-db"
 )
 
 // ErrVersionDoesNotExist is returned if a requested version does not exist.
 var ErrVersionDoesNotExist = fmt.Errorf("version does not exist")
 
 // MutableTree is a persistent tree which keeps track of versions.
 type MutableTree struct {
-	*ImmutableTree             // The current, working tree.
-	lastSaved *ImmutableTree   // The most recently saved tree.
-	orphans   map[string]int64 // Nodes removed by changes to working tree.
-	versions  map[int64]bool   // The previous, saved versions of the tree.
-	ndb       *nodeDB
+	*ImmutableTree                  // The current, working tree.
+	lastSaved      *ImmutableTree   // The most recently saved tree.
+	orphans        map[string]int64 // Nodes removed by changes to working tree.
+	versions       map[int64]bool   // The previous, saved versions of the tree.
+	ndb            *nodeDB
 }
 
 // NewMutableTree returns a new tree with the specified cache size and datastore.