From e14c3335bab8858ee239130c2ddc20ec03a19b7e Mon Sep 17 00:00:00 2001
From: GNaD <cpt.meoz@gmail.com>
Date: Mon, 3 Oct 2022 10:26:54 +0700
Subject: [PATCH 1/3] add check version wasm

---
 x/wasm/module.go | 51 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/x/wasm/module.go b/x/wasm/module.go
index c7ea6339c0..90bc0ee12a 100644
--- a/x/wasm/module.go
+++ b/x/wasm/module.go
@@ -3,7 +3,10 @@ package wasm
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"math/rand"
+	"runtime/debug"
+	"strings"
 
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/codec"
@@ -24,6 +27,7 @@ import (
 	"github.com/CosmWasm/wasmd/x/wasm/keeper"
 	"github.com/CosmWasm/wasmd/x/wasm/simulation"
 	"github.com/CosmWasm/wasmd/x/wasm/types"
+	wasmvm "github.com/CosmWasm/wasmvm"
 )
 
 var (
@@ -217,6 +221,8 @@ func AddModuleInitFlags(startCmd *cobra.Command) {
 	startCmd.Flags().Uint32(flagWasmMemoryCacheSize, defaults.MemoryCacheSize, "Sets the size in MiB (NOT bytes) of an in-memory cache for Wasm modules. Set to 0 to disable.")
 	startCmd.Flags().Uint64(flagWasmQueryGasLimit, defaults.SmartQueryGasLimit, "Set the max gas that can be spent on executing a query with a Wasm contract")
 	startCmd.Flags().String(flagWasmSimulationGasLimit, "", "Set the max gas that can be spent when executing a simulation TX")
+
+	startCmd.PreRunE = chainPreRuns(checkLibwasmVersion, startCmd.PreRunE)
 }
 
 // ReadWasmConfig reads the wasm specifig configuration
@@ -250,3 +256,48 @@ func ReadWasmConfig(opts servertypes.AppOptions) (types.WasmConfig, error) {
 	}
 	return cfg, nil
 }
+
+func getExpectedLibwasmVersion() string {
+	buildInfo, ok := debug.ReadBuildInfo()
+	if !ok {
+		panic("can't read build info")
+	}
+	for _, d := range buildInfo.Deps {
+		if d.Path != "github.com/CosmWasm/wasmvm" {
+			continue
+		}
+		if d.Replace != nil {
+			return fmt.Sprintf(d.Replace.Version)
+
+		}
+		return fmt.Sprintf(d.Version)
+	}
+	return ""
+}
+
+func checkLibwasmVersion(cmd *cobra.Command, args []string) error {
+	wasmVersion, err := wasmvm.LibwasmvmVersion()
+	if err != nil {
+		return fmt.Errorf("unable to retrieve libwasmversion %w", err)
+	}
+	wasmExpectedVersion := getExpectedLibwasmVersion()
+	if !strings.Contains(wasmExpectedVersion, wasmVersion) {
+		return fmt.Errorf("libwasmversion mismatch. got: %s; expected: %s", wasmVersion, wasmExpectedVersion)
+	}
+	return nil
+}
+
+type preRunFn func(cmd *cobra.Command, args []string) error
+
+func chainPreRuns(pfns ...preRunFn) preRunFn {
+	return func(cmd *cobra.Command, args []string) error {
+		for _, pfn := range pfns {
+			if pfn != nil {
+				if err := pfn(cmd, args); err != nil {
+					return err
+				}
+			}
+		}
+		return nil
+	}
+}

From 691d8815badb148d0c152924e7a17488ce54f54c Mon Sep 17 00:00:00 2001
From: GNaD <cpt.meoz@gmail.com>
Date: Mon, 3 Oct 2022 12:00:12 +0700
Subject: [PATCH 2/3] add check wasmExpectedVersion

---
 x/wasm/module.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/x/wasm/module.go b/x/wasm/module.go
index 90bc0ee12a..68c23da30b 100644
--- a/x/wasm/module.go
+++ b/x/wasm/module.go
@@ -268,7 +268,6 @@ func getExpectedLibwasmVersion() string {
 		}
 		if d.Replace != nil {
 			return fmt.Sprintf(d.Replace.Version)
-
 		}
 		return fmt.Sprintf(d.Version)
 	}
@@ -281,6 +280,9 @@ func checkLibwasmVersion(cmd *cobra.Command, args []string) error {
 		return fmt.Errorf("unable to retrieve libwasmversion %w", err)
 	}
 	wasmExpectedVersion := getExpectedLibwasmVersion()
+	if wasmExpectedVersion == "" {
+		return fmt.Errorf("wasmvm module not exist")
+	}
 	if !strings.Contains(wasmExpectedVersion, wasmVersion) {
 		return fmt.Errorf("libwasmversion mismatch. got: %s; expected: %s", wasmVersion, wasmExpectedVersion)
 	}

From 0f727c04a7c1fdc6bf4c4873abbad5d1ee310dc6 Mon Sep 17 00:00:00 2001
From: GNaD <cpt.meoz@gmail.com>
Date: Fri, 7 Oct 2022 10:40:16 +0700
Subject: [PATCH 3/3] update on nit

---
 x/wasm/module.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/x/wasm/module.go b/x/wasm/module.go
index 68c23da30b..7973c8db97 100644
--- a/x/wasm/module.go
+++ b/x/wasm/module.go
@@ -267,9 +267,9 @@ func getExpectedLibwasmVersion() string {
 			continue
 		}
 		if d.Replace != nil {
-			return fmt.Sprintf(d.Replace.Version)
+			return d.Replace.Version
 		}
-		return fmt.Sprintf(d.Version)
+		return d.Version
 	}
 	return ""
 }