build: use golangci-lint CLI to lint files (#80)

This PR updates the linting process to use the `golangci-lint` CLI. This should guarantee major forward compatibility as the golangci-lint version is now tracked within the codebase along with other dependencies

Depends-On: #79

- [x] Targeted PR against correct branch.
- [ ] Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
- [ ] Wrote unit tests.
- [x] Re-reviewed `Files changed` in the Github PR explorer.

.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: rokroskar/workflow-run-cleanup-action@master
         env:
           GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
-    if: "!startsWith(github.ref, 'refs/tags/') && github.ref != 'refs/heads/main'"
+    if: "!startsWith(github.ref, 'refs/tags/') && !startsWith(github.ref, 'refs/tags/cosmos')"
 
   Unit-tests:
     runs-on: ubuntu-latest
@@ -39,11 +39,10 @@ jobs:
 
       - name: Build 🔨
         if: "env.GIT_DIFF != ''"
-        run: GOARCH=${{ matrix.go-arch }} LEDGER_ENABLED=false make build
+        run: make build
 
       - name: Test & Coverage report creation 🧪
-        run: |
-          make install test-unit stop-docker-test
+        run: make test-unit stop-docker-test
 
       - name: Upload coverage 📤
         if: "env.GIT_DIFF != ''"

database/postgresql/postgresql.go

@@ -101,14 +101,15 @@ func (db *Database) GetLastBlockHeight() (int64, error) {
 	stmt := `SELECT height FROM block ORDER BY height DESC LIMIT 1;`
 
 	var height int64
-	if err := db.SQL.QueryRow(stmt).Scan(&height); err != nil {
+	err := db.SQL.QueryRow(stmt).Scan(&height)
+	if err != nil {
+		if strings.Contains(err.Error(), "no rows in result set") {
+			// If no rows stored in block table, return 0 as height
+			return 0, nil
+		}
 		return 0, fmt.Errorf("error while getting last block height, error: %s", err)
 	}
 
-	if height == 0 {
-		return 0, fmt.Errorf("cannot get block height, no blocks saved")
-	}
-
 	return height, nil
 }