refactor: remove cosmos-db as a dep

Makefile

@@ -36,7 +36,7 @@ format:
 
 # look into .golangci.yml for enabling / disabling linters
 golangci_lint_cmd=golangci-lint
-golangci_version=v1.55.2
+golangci_version=v1.59.1
 
 lint:
 	@echo "--> Running linter"

basic_test.go

@@ -383,7 +383,7 @@ func TestIterateRange(t *testing.T) {
 	}
 	// test traversing the whole node works... in order
 	viewed := []string{}
-	tree.Iterate(func(key []byte, value []byte) bool {
+	tree.Iterate(func(key []byte, _ []byte) bool {
 		viewed = append(viewed, string(key))
 		return false
 	})

batch.go

@@ -3,6 +3,7 @@ package iavl
 import (
 	"sync"
 
+	corestore "cosmossdk.io/core/store"
 	dbm "github.com/cosmos/iavl/db"
 )
 
@@ -11,13 +12,13 @@ import (
 // as soon as the configurable limit is reached.
 type BatchWithFlusher struct {
 	mtx   sync.Mutex
-	db    dbm.DB    // This is only used to create new batch
-	batch dbm.Batch // Batched writing buffer.
+	db    dbm.DB          // This is only used to create new batch
+	batch corestore.Batch // Batched writing buffer.
 
 	flushThreshold int // The threshold to flush the batch to disk.
 }
 
-var _ dbm.Batch = (*BatchWithFlusher)(nil)
+var _ corestore.Batch = (*BatchWithFlusher)(nil)
 
 // NewBatchWithFlusher returns new BatchWithFlusher wrapping the passed in batch
 func NewBatchWithFlusher(db dbm.DB, flushThreshold int) *BatchWithFlusher {

batch_test.go

@@ -28,19 +28,13 @@ func makeKey(n uint16) []byte {
 }
 
 func TestBatchWithFlusher(t *testing.T) {
-	testedBackends := []string{
-		"goleveldb",
-	}
-
-	for _, backend := range testedBackends {
-		testBatchWithFlusher(t, backend)
-	}
+	testBatchWithFlusher(t)
 }
 
-func testBatchWithFlusher(t *testing.T, backend string) {
+func testBatchWithFlusher(t *testing.T) {
 	name := fmt.Sprintf("test_%x", randstr(12))
 	dir := t.TempDir()
-	db, err := dbm.NewDB(name, backend, dir)
+	db, err := dbm.NewGoLevelDB(name, dir)
 	require.NoError(t, err)
 	defer cleanupDBDir(dir, name)
 

benchmarks/bench_test.go

@@ -6,10 +6,10 @@ import (
 	mrand "math/rand"
 	"os"
 	"runtime"
-	"strings"
 	"testing"
 
 	"cosmossdk.io/core/log"
+	corestore "cosmossdk.io/core/store"
 	"github.com/stretchr/testify/require"
 
 	"github.com/cosmos/iavl"
@@ -147,7 +147,7 @@ func runIterationSlow(b *testing.B, t *iavl.MutableTree, expectedSize int) {
 	}
 }
 
-func iterate(b *testing.B, itr dbm.Iterator, expectedSize int) {
+func iterate(b *testing.B, itr corestore.Iterator, expectedSize int) {
 	b.StartTimer()
 	keyValuePairs := make([][][]byte, 0, expectedSize)
 	for i := 0; i < expectedSize && itr.Valid(); i++ {
@@ -330,9 +330,6 @@ func runBenchmarks(b *testing.B, benchmarks []benchmark) {
 
 		// prepare a dir for the db and cleanup afterwards
 		dirName := fmt.Sprintf("./%s-db", prefix)
-		if bb.dbType == "rocksdb" {
-			_ = os.Mkdir(dirName, 0o755)
-		}
 
 		defer func() {
 			err := os.RemoveAll(dirName)
@@ -347,16 +344,8 @@ func runBenchmarks(b *testing.B, benchmarks []benchmark) {
 			err error
 		)
 		if bb.dbType != "nodb" {
-			d, err = dbm.NewDB("test", bb.dbType, dirName)
-
+			d, err = dbm.NewGoLevelDB("test", dirName)
 			if err != nil {
-				if strings.Contains(err.Error(), "unknown db_backend") {
-					// As an exception to run benchmarks: if the error is about cleveldb, or rocksdb,
-					// it requires a tag "cleveldb" to link the database at runtime, so instead just
-					// log the error instead of failing.
-					b.Logf("%+v\n", err)
-					continue
-				}
 				require.NoError(b, err)
 			}
 			defer d.Close()

benchmarks/cosmos-exim/main.go

@@ -6,7 +6,6 @@ import (
 	"time"
 
 	"cosmossdk.io/core/log"
-	tmdb "github.com/cosmos/cosmos-db"
 
 	"github.com/cosmos/iavl"
 	idbm "github.com/cosmos/iavl/db"
@@ -89,11 +88,11 @@ func run(dbPath string) error {
 
 // runExport runs an export benchmark and returns a map of store names/export nodes
 func runExport(dbPath string) (int64, map[string][]*iavl.ExportNode, error) {
-	ldb, err := tmdb.NewDB("application", tmdb.GoLevelDBBackend, dbPath)
+	ldb, err := idbm.NewGoLevelDB("application", dbPath)
 	if err != nil {
 		return 0, nil, err
 	}
-	tree := iavl.NewMutableTree(idbm.NewWrapper(tmdb.NewPrefixDB(ldb, []byte("s/k:main/"))), 0, false, log.NewNopLogger())
+	tree := iavl.NewMutableTree(idbm.NewPrefixDB(ldb, []byte("s/k:main/")), 0, false, log.NewNopLogger())
 	version, err := tree.LoadVersion(0)
 	if err != nil {
 		return 0, nil, err
@@ -104,8 +103,8 @@ func runExport(dbPath string) (int64, map[string][]*iavl.ExportNode, error) {
 
 	totalStats := Stats{}
 	for _, name := range stores {
-		db := tmdb.NewPrefixDB(ldb, []byte("s/k:"+name+"/"))
-		tree := iavl.NewMutableTree(idbm.NewWrapper(db), 0, false, log.NewNopLogger())
+		db := idbm.NewPrefixDB(ldb, []byte("s/k:"+name+"/"))
+		tree := iavl.NewMutableTree(db, 0, false, log.NewNopLogger())
 
 		stats := Stats{}
 		export := make([]*iavl.ExportNode, 0, 100000)
@@ -166,11 +165,11 @@ func runImport(version int64, exports map[string][]*iavl.ExportNode) error {
 		start := time.Now()
 		stats := Stats{}
 
-		newDB, err := tmdb.NewDB(name, tmdb.GoLevelDBBackend, tempdir)
+		newDB, err := idbm.NewGoLevelDB(name, tempdir)
 		if err != nil {
 			return err
 		}
-		newTree := iavl.NewMutableTree(idbm.NewWrapper(newDB), 0, false, log.NewNopLogger())
+		newTree := iavl.NewMutableTree(newDB, 0, false, log.NewNopLogger())
 		importer, err := newTree.Import(version)
 		if err != nil {
 			return err

cmd/go.mod

@@ -3,13 +3,13 @@ module github.com/cosmos/iavl/cmd
 go 1.21
 
 require (
+	cosmossdk.io/core v0.12.1-0.20240514205955-97c9bbb0341b
 	cosmossdk.io/log v1.3.2-0.20240514205955-97c9bbb0341b
 	github.com/cosmos/cosmos-db v1.0.2
 	github.com/cosmos/iavl v1.2.0
 )
 
 require (
-	cosmossdk.io/core v0.12.1-0.20240514205955-97c9bbb0341b // indirect
 	github.com/DataDog/zstd v1.4.5 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect

cmd/go.sum

@@ -380,8 +380,8 @@ golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
-golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4 h1:uVc8UZUe6tr40fFVnUP5Oj+veunVezqYl9z7DYw9xzw=
+golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=

cmd/iaviewer/README.md

@@ -104,15 +104,15 @@ diff a-cur.shape b-cur.shape
 ```
 
 Yup, that is quite some difference. You can also look at the tree as a whole.
-So, stretch your terminal nice and wide, and... 
+So, stretch your terminal nice and wide, and...
 
 ```shell
 less a-cur.shape
 ```
 
-It has `-5 ` for an inner node of depth 5, and `*6 ` for a leaf node (data) of depth 6.
-Indentation also suggests the shape of the tree. 
+It has `-5` for an inner node of depth 5, and `*6` for a leaf node (data) of depth 6.
+Indentation also suggests the shape of the tree.
 
 Note, if anyone wants to improve the visualization, that would be awesome.
 I have no idea how to do this well, but at least text output makes some
-sense and is diff-able.
+sense and is diff-able.

cmd/iaviewer/main.go

@@ -14,7 +14,6 @@ import (
 	dbm "github.com/cosmos/cosmos-db"
 
 	"github.com/cosmos/iavl"
-	idbm "github.com/cosmos/iavl/db"
 )
 
 // TODO: make this configurable?
@@ -123,7 +122,7 @@ func ReadTree(dir string, version int, prefix []byte) (*iavl.MutableTree, error)
 		db = dbm.NewPrefixDB(db, prefix)
 	}
 
-	tree := iavl.NewMutableTree(idbm.NewWrapper(db), DefaultCacheSize, false, log.NewLogger(os.Stdout))
+	tree := iavl.NewMutableTree(newWrapper(db), DefaultCacheSize, false, log.NewLogger(os.Stdout))
 	ver, err := tree.LoadVersion(int64(version))
 	fmt.Printf("Got version: %d\n", ver)
 	return tree, err

cmd/iaviewer/wrapper.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+	corestore "cosmossdk.io/core/store"
+	dbm "github.com/cosmos/cosmos-db"
+)
+
+// Wrapper wraps a dbm.DB to implement DB.
+type Wrapper struct {
+	dbm.DB
+}
+
+// newWrapper returns a new Wrapper.
+// Wrapper must be implemented against rocksdb.DB and pebbleDB separately
+func newWrapper(db dbm.DB) *Wrapper {
+	return &Wrapper{DB: db}
+}
+
+// Iterator implements DB.
+func (db *Wrapper) Iterator(start, end []byte) (corestore.Iterator, error) {
+	return db.DB.Iterator(start, end)
+}
+
+// ReverseIterator implements DB.
+func (db *Wrapper) ReverseIterator(start, end []byte) (corestore.Iterator, error) {
+	return db.DB.ReverseIterator(start, end)
+}
+
+// NewBatch implements DB.
+func (db *Wrapper) NewBatch() corestore.Batch {
+	return db.DB.NewBatch()
+}
+
+// NewBatchWithSize implements DB.
+func (db *Wrapper) NewBatchWithSize(size int) corestore.Batch {
+	return db.DB.NewBatchWithSize(size)
+}

db/README.md

@@ -11,18 +11,18 @@ package main
 
 import (
     "cosmossdk.io/log"
-	dbm "github.com/cosmos/cosmos-db"
+    dbm "github.com/cosmos/cosmos-db"
 
-	"github.com/cosmos/iavl"
-	idbm "github.com/cosmos/iavl/db"
+    "github.com/cosmos/iavl"
+    idbm "github.com/cosmos/iavl/db"
 )
 
 func main() {
     levelDB, err := dbm.NewDB("application", dbm.GoLevelDBBackend, "test")
-	if err != nil {
-		panic(err)
-	}
+ if err != nil {
+  panic(err)
+ }
 
-	tree := iavl.NewMutableTree(idbm.NewWrapper(dbm.NewPrefixDB(levelDB, []byte("s/k:main/"))), 0, false, log.NewNopLogger())
+ tree := iavl.NewMutableTree(idbm.NewWrapper(dbm.NewPrefixDB(levelDB, []byte("s/k:main/"))), 0, false, log.NewNopLogger())
 }
 ```