Merge branch 'master' into pirtleshell/delete-versions-from

.github/workflows/lint-pr.yml

@@ -17,6 +17,6 @@ jobs:
       statuses: write # for amannn/action-semantic-pull-request to mark status of analyzed PR
     runs-on: ubuntu-latest
     steps:
-      - uses: amannn/[email protected].2
+      - uses: amannn/[email protected].3
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

CHANGELOG.md

@@ -5,6 +5,7 @@
 ### Improvements
 
 - [#952](https://github.com/cosmos/iavl/pull/952) Add `DeleteVersionsFrom(int64)` API.
+- [#961](https://github.com/cosmos/iavl/pull/961) Add new `GetLatestVersion` API to get the latest version.
 
 ## v1.2.0 May 13, 2024
 

mutable_tree.go

@@ -73,6 +73,11 @@ func (tree *MutableTree) IsEmpty() bool {
 	return tree.ImmutableTree.Size() == 0
 }
 
+// GetLatestVersion returns the latest version of the tree.
+func (tree *MutableTree) GetLatestVersion() (int64, error) {
+	return tree.ndb.getLatestVersion()
+}
+
 // VersionExists returns whether or not a version exists.
 func (tree *MutableTree) VersionExists(version int64) bool {
 	legacyLatestVersion, err := tree.ndb.getLegacyLatestVersion()

mutable_tree_test.go

@@ -374,11 +374,15 @@ func prepareTree(t *testing.T) *MutableTree {
 	return newTree
 }
 
-func TestMutableTree_VersionExists(t *testing.T) {
+func TestMutableTree_Version(t *testing.T) {
 	tree := prepareTree(t)
 	require.True(t, tree.VersionExists(1))
 	require.True(t, tree.VersionExists(2))
 	require.False(t, tree.VersionExists(3))
+
+	v, err := tree.GetLatestVersion()
+	require.NoError(t, err)
+	require.Equal(t, int64(2), v)
 }
 
 func checkGetVersioned(t *testing.T, tree *MutableTree, version int64, key, value []byte) {