contracts Add LOG_TARGET constant (#14002)

* contracts Add LOG_TARGET constant

* Update frame/contracts/src/lib.rs

Co-authored-by: Sasha Gryaznov <hi@agryaznov.com>

---------

Co-authored-by: Sasha Gryaznov <hi@agryaznov.com>

substrate/frame/contracts/src/exec.rs

@@ -19,7 +19,7 @@ use crate::{
 	gas::GasMeter,
 	storage::{self, DepositAccount, WriteOutcome},
 	BalanceOf, CodeHash, Config, ContractInfo, ContractInfoOf, DebugBufferVec, Determinism, Error,
-	Event, Nonce, Pallet as Contracts, Schedule, System,
+	Event, Nonce, Pallet as Contracts, Schedule, System, LOG_TARGET,
 };
 use frame_support::{
 	crypto::ecdsa::ECDSAExt,
@@ -1002,7 +1002,7 @@ where
 		} else {
 			if let Some((msg, false)) = self.debug_message.as_ref().map(|m| (m, m.is_empty())) {
 				log::debug!(
-					target: "runtime::contracts",
+					target: LOG_TARGET,
 					"Execution finished with debug buffer: {}",
 					core::str::from_utf8(msg).unwrap_or("<Invalid UTF8>"),
 				);
@@ -1331,7 +1331,7 @@ where
 				.try_extend(&mut msg.bytes())
 				.map_err(|_| {
 					log::debug!(
-						target: "runtime::contracts",
+						target: LOG_TARGET,
 						"Debug buffer (of {} bytes) exhausted!",
 						DebugBufferVec::<T>::bound(),
 					)

substrate/frame/contracts/src/lib.rs

@@ -163,6 +163,13 @@ type OldWeight = u64;
 /// that this value makes sense for a memory location or length.
 const SENTINEL: u32 = u32::MAX;
 
+/// The target that is used for the log output emitted by this crate.
+///
+/// Hence you can use this target to selectively increase the log level for this crate.
+///
+/// Example: `RUST_LOG=runtime::contracts=debug my_code --dev`
+const LOG_TARGET: &str = "runtime::contracts";
+
 #[frame_support::pallet]
 pub mod pallet {
 	use super::*;

substrate/frame/contracts/src/storage/meter.rs

@@ -19,7 +19,7 @@
 
 use crate::{
 	storage::{ContractInfo, DepositAccount},
-	BalanceOf, Config, Error, Inspect, Pallet, System,
+	BalanceOf, Config, Error, Inspect, Pallet, System, LOG_TARGET,
 };
 use codec::Encode;
 use frame_support::{
@@ -502,7 +502,7 @@ impl<T: Config> Ext<T> for ReservingExt {
 				);
 				if let Err(err) = result {
 					log::error!(
-						target: "runtime::contracts",
+						target: LOG_TARGET,
 						"Failed to transfer storage deposit {:?} from origin {:?} to deposit account {:?}: {:?}",
 						amount, origin, deposit_account, err,
 					);
@@ -531,7 +531,7 @@ impl<T: Config> Ext<T> for ReservingExt {
 				);
 				if matches!(result, Err(_)) {
 					log::error!(
-						target: "runtime::contracts",
+						target: LOG_TARGET,
 						"Failed to refund storage deposit {:?} from deposit account {:?} to origin {:?}: {:?}",
 						amount, deposit_account, origin, result,
 					);

substrate/frame/contracts/src/wasm/mod.rs

@@ -43,7 +43,7 @@ use crate::{
 	exec::{ExecResult, Executable, ExportedFunction, Ext},
 	gas::GasMeter,
 	AccountIdOf, BalanceOf, CodeHash, CodeVec, Config, Error, OwnerInfoOf, RelaxedCodeVec,
-	Schedule,
+	Schedule, LOG_TARGET,
 };
 use codec::{Decode, Encode, MaxEncodedLen};
 use frame_support::dispatch::{DispatchError, DispatchResult};
@@ -326,7 +326,7 @@ impl<T: Config> Executable<T> for PrefabWasmModule<T> {
 			},
 		)
 		.map_err(|msg| {
-			log::debug!(target: "runtime::contracts", "failed to instantiate code: {}", msg);
+			log::debug!(target: LOG_TARGET, "failed to instantiate code: {}", msg);
 			Error::<T>::CodeRejected
 		})?;
 		store.data_mut().set_memory(memory);
@@ -335,7 +335,7 @@ impl<T: Config> Executable<T> for PrefabWasmModule<T> {
 			.get_export(&store, function.identifier())
 			.and_then(|export| export.into_func())
 			.ok_or_else(|| {
-				log::error!(target: "runtime::contracts", "failed to find entry point");
+				log::error!(target: LOG_TARGET, "failed to find entry point");
 				Error::<T>::CodeRejected
 			})?;
 

substrate/frame/contracts/src/wasm/prepare.rs

@@ -25,7 +25,7 @@ use crate::{
 	wasm::{
 		runtime::AllowDeprecatedInterface, Determinism, Environment, OwnerInfo, PrefabWasmModule,
 	},
-	AccountIdOf, CodeVec, Config, Error, Schedule,
+	AccountIdOf, CodeVec, Config, Error, Schedule, LOG_TARGET,
 };
 use codec::{Encode, MaxEncodedLen};
 use sp_runtime::{traits::Hash, DispatchError};
@@ -379,7 +379,7 @@ where
 	})
 	.validate_all(original_code)
 	.map_err(|err| {
-		log::debug!(target: "runtime::contracts", "{}", err);
+		log::debug!(target: LOG_TARGET, "{}", err);
 		(Error::<T>::CodeRejected.into(), "validation of new code failed")
 	})?;
 
@@ -403,7 +403,7 @@ where
 		Ok((code, memory_limits))
 	})()
 	.map_err(|msg: &str| {
-		log::debug!(target: "runtime::contracts", "new code rejected: {}", msg);
+		log::debug!(target: LOG_TARGET, "new code rejected: {}", msg);
 		(Error::<T>::CodeRejected.into(), msg)
 	})?;
 
@@ -426,7 +426,7 @@ where
 			},
 		)
 		.map_err(|err| {
-			log::debug!(target: "runtime::contracts", "{}", err);
+			log::debug!(target: LOG_TARGET, "{}", err);
 			(Error::<T>::CodeRejected.into(), "new code rejected after instrumentation")
 		})?;
 	}
@@ -518,7 +518,7 @@ where
 		InstrumentReason::Reinstrument,
 	)
 	.map_err(|(err, msg)| {
-		log::error!(target: "runtime::contracts", "CodeRejected during reinstrument: {}", msg);
+		log::error!(target: LOG_TARGET, "CodeRejected during reinstrument: {}", msg);
 		err
 	})
 	.map(|(code, _)| code)