add support for RocksDB

.github/workflows/unit-tests.yml

@@ -21,8 +21,31 @@ jobs:
       with:
         go-version: '1.23'
 
+    - name: Install RocksDB dependencies
+      run: sudo apt-get update && sudo apt-get install -y libsnappy-dev
+
+    - name: Cache RocksDB
+      id: cache-rocksdb
+      uses: actions/cache@v3
+      with:
+        path: /tmp/rocksdb
+        key: rocksdb-portable-10.5.1
+
+    - name: Build RocksDB
+      if: steps.cache-rocksdb.outputs.cache-hit != 'true'
+      run: |
+        cd /tmp
+        git clone --depth 1 --branch v10.5.1 https://github.com/facebook/rocksdb.git
+        cd rocksdb
+        PORTABLE=1 make static_lib -j$(nproc)
+
+    - name: Install RocksDB
+      run: |
+        cd /tmp/rocksdb
+        sudo make install-static
+
     - name: Build
-      run: go build -v ./...
+      run: CGO_ENABLED=1 go build -v ./...
 
     - name: Test
-      run: go test -v ./...
+      run: CGO_ENABLED=1 go test -v ./...

README.md

@@ -17,8 +17,42 @@ Package config provides an easy way to create and manage configurations for aerg
 
 ## db
 
-Package db is an wrapper of database implementations. Currently, this supports [badgerdb](https://github.com/dgraph-io/badger).
-More implementations (e.g. leveldb) will be updated in the future
+Package db is a wrapper of database implementations. Currently, this supports:
+- [BadgerDB](https://github.com/dgraph-io/badger)
+- [LevelDB](https://github.com/syndtr/goleveldb)
+- [RocksDB](https://rocksdb.org/)
+
+### RocksDB Requirements
+
+RocksDB requires CGO and the RocksDB C++ library to be installed on your system.
+
+**Ubuntu/Debian:**
+```bash
+sudo apt-get update
+sudo apt-get install -y librocksdb-dev
+```
+
+**Alpine Linux:**
+```bash
+apk add --no-cache rocksdb-dev build-base
+```
+
+**RedHat/CentOS/Fedora:**
+```bash
+sudo yum install -y rocksdb-devel
+# or on newer versions
+sudo dnf install -y rocksdb-devel
+```
+
+**macOS:**
+```bash
+brew install rocksdb
+```
+
+**Building with RocksDB:**
+```bash
+CGO_ENABLED=1 go build ./...
+```
 
 ## log
 

db/db.go

@@ -73,6 +73,15 @@ func registerDBConstructor(dbimpl ImplType, constructor dbConstructor) {
 	dbImpls[dbimpl] = constructor
 }
 
+// GetRegisteredImpls returns the list of registered database implementations
+func GetRegisteredImpls() []ImplType {
+	var impls []ImplType
+	for impl := range dbImpls {
+		impls = append(impls, impl)
+	}
+	return impls
+}
+
 // NewDB creates new database or load existing database in the directory
 func NewDB(dbimpltype ImplType, dir string, options ...Option) DB {
 	// The default wrapper need 3 frames and badger wrapper need 1 frame to show actual stack trace.