Use [wasm] subsection in app.toml

app/app.go

@@ -123,6 +123,12 @@ type WasmApp struct {
 	sm *module.SimulationManager
 }
 
+// WasmWrapper allows us to use namespacing in the config file
+// This is only used for parsing in the app, x/wasm expects WasmConfig
+type WasmWrapper struct {
+	Wasm wasm.WasmConfig `mapstructure:"wasm"`
+}
+
 // NewWasmApp returns a reference to an initialized WasmApp.
 func NewWasmApp(
 	logger log.Logger, db dbm.DB, traceStore io.Writer, loadLatest bool,
@@ -183,11 +189,13 @@ func NewWasmApp(
 	homeDir := viper.GetString(cli.HomeFlag)
 	wasmDir := filepath.Join(homeDir, "wasm")
 
-	wasmConfig := wasm.DefaultWasmConfig()
-	err := viper.Unmarshal(&wasmConfig)
+	wasmWrap := WasmWrapper{Wasm: wasm.DefaultWasmConfig()}
+	err := viper.Unmarshal(&wasmWrap)
 	if err != nil {
 		fmt.Println("error while reading wasm config:", err.Error())
 	}
+	wasmConfig := wasmWrap.Wasm
+	fmt.Printf("WasmConfig: %#v\n", wasmConfig)
 
 	app.wasmKeeper = wasm.NewKeeper(app.cdc, keys[wasm.StoreKey], app.accountKeeper, app.bankKeeper, wasmRouter, wasmDir, wasmConfig)
 

x/wasm/README.md

@@ -0,0 +1,28 @@
+# Wasm Module
+
+This should be a brief overview of the functionality
+
+## Configuration
+
+You can add the following section to `config/app.toml`. Below is shown with defaults:
+
+```toml
+[wasm]
+# This is the maximum sdk gas (wasm and storage) that we allow for any x/wasm "smart" queries
+query_gas_limit = 300000
+# This is the number of wasm vm instances we keep cached in memory for speed-up
+# Warning: this is currently unstable and may lead to crashes, best to keep for 0 unless testing locally
+lru_size = 0
+```
+
+## Messages
+
+TODO
+
+## CLI
+
+TODO
+
+## Rest
+
+TODO