Add command to take an in-place snapshot (#42)

* Add command to take an in-place snapshot

* Add test data for in place snapshot unit test

* Implement unit test for inplace snapshot

* Add check for storage IPLD

* Run unit tests sequentially

* Add github workflow for unit test

* Add missing checks for state and storage cid fields

* Add more storage nodes to test

* Update ipld-eth-db version for tests

* Add comments for inplace snapshot test data

* Add in-place snapshot cmd in readme

* Implement defer pattern for db transaction

* Log transaction commit or rollback error

Co-authored-by: nabarun <nabarun@deepstacksoft.com>

.github/workflows/on-pr.yaml

@@ -0,0 +1,30 @@
+name: Docker Build
+
+on: [pull_request]
+
+jobs:
+  test:
+    name: Run unit tests
+    runs-on: ubuntu-latest
+    env:
+      GOPATH: /tmp/go
+      GO111MODULE: on
+    steps:
+      - name: Create GOPATH
+        run: mkdir -p /tmp/go
+
+      - uses: actions/setup-go@v3
+        with:
+          go-version: ">=1.18.0"
+          check-latest: true
+
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Run database
+        run: docker-compose up -d
+
+      - name: Run unit tests
+        run: |
+          sleep 45
+          make dbtest