Migration testing runtime API/Bot

.gitignore

@@ -23,3 +23,4 @@ rls*.log
 **/hfuzz_workspace/
 .cargo/
 .cargo-remote.toml
+*.bin

Cargo.toml

@@ -73,6 +73,7 @@ members = [
 	"frame/contracts/rpc",
 	"frame/contracts/rpc/runtime-api",
 	"frame/democracy",
+	"frame/try-runtime",
 	"frame/elections",
 	"frame/example",
 	"frame/example-offchain-worker",
@@ -186,6 +187,8 @@ members = [
 	"utils/fork-tree",
 	"utils/frame/benchmarking-cli",
 	"utils/frame/frame-utilities-cli",
+	"utils/frame/try-runtime/remote-externalities",
+	"utils/frame/try-runtime/cli",
 	"utils/frame/rpc/support",
 	"utils/frame/rpc/system",
 	"utils/prometheus",

bin/node/cli/Cargo.toml

@@ -99,6 +99,7 @@ node-executor = { version = "2.0.0", path = "../executor" }
 sc-cli = { version = "0.9.0", optional = true, path = "../../../client/cli" }
 frame-benchmarking-cli = { version = "3.0.0", optional = true, path = "../../../utils/frame/benchmarking-cli" }
 node-inspect = { version = "0.8.0", optional = true, path = "../inspect" }
+try-runtime-cli = { version = "3.0.0", optional = true, path = "../../../utils/frame/try-runtime/cli" }
 
 # WASM-specific dependencies
 wasm-bindgen = { version = "0.2.57", optional = true }
@@ -131,6 +132,7 @@ node-inspect = { version = "0.8.0", optional = true, path = "../inspect" }
 frame-benchmarking-cli = { version = "3.0.0", optional = true, path = "../../../utils/frame/benchmarking-cli" }
 substrate-build-script-utils = { version = "3.0.0", optional = true, path = "../../../utils/build-script-utils" }
 substrate-frame-cli = { version = "3.0.0", optional = true, path = "../../../utils/frame/frame-utilities-cli" }
+try-runtime-cli = { version = "3.0.0", optional = true, path = "../../../utils/frame/try-runtime/cli" }
 
 [build-dependencies.sc-cli]
 version = "0.9.0"
@@ -155,8 +157,13 @@ cli = [
 	"sc-finality-grandpa-warp-sync",
 	"structopt",
 	"substrate-build-script-utils",
+	"try-runtime-cli",
 ]
 runtime-benchmarks = [
 	"node-runtime/runtime-benchmarks",
 	"frame-benchmarking-cli",
 ]
+try-runtime = [
+	"node-runtime/try-runtime",
+	"try-runtime-cli",
+]

bin/node/cli/src/cli.rs

@@ -47,6 +47,11 @@ pub enum Subcommand {
 	#[structopt(name = "benchmark", about = "Benchmark runtime pallets.")]
 	Benchmark(frame_benchmarking_cli::BenchmarkCmd),
 
+	/// Dry-run all of the runtime upgrade hooks in the current runtime upon a configurable state.
+	///
+	/// The state is independent of the current chain and can be fetched remotely.
+	TryRuntime(try_runtime_cli::TryRuntimeCmd),
+
 	/// Verify a signature for a message, provided on STDIN, with a given (public or secret) key.
 	Verify(VerifyCmd),
 

bin/node/cli/src/command.rs

@@ -149,5 +149,12 @@ pub fn run() -> Result<()> {
 				Ok((cmd.run(client, backend), task_manager))
 			})
 		},
+		Some(Subcommand::TryRuntime(cmd)) => {
+			let runner = cli.create_runner(cmd)?;
+			runner.async_run(|config| {
+				let PartialComponents { task_manager, .. } = new_partial(&config)?;
+				Ok((cmd.run::<Block, Executor>(config), task_manager))
+			})
+		}
 	}
 }

bin/node/runtime/Cargo.toml

@@ -43,6 +43,7 @@ frame-support = { version = "3.0.0", default-features = false, path = "../../../
 frame-system = { version = "3.0.0", default-features = false, path = "../../../frame/system" }
 frame-system-benchmarking = { version = "3.0.0", default-features = false, path = "../../../frame/system/benchmarking", optional = true }
 frame-system-rpc-runtime-api = { version = "3.0.0", default-features = false, path = "../../../frame/system/rpc/runtime-api/" }
+frame-try-runtime = { version = "3.0.0", default-features = false, path = "../../../frame/try-runtime", optional = true }
 pallet-assets = { version = "3.0.0", default-features = false, path = "../../../frame/assets" }
 pallet-authority-discovery = { version = "3.0.0", default-features = false, path = "../../../frame/authority-discovery" }
 pallet-authorship = { version = "3.0.0", default-features = false, path = "../../../frame/authorship" }
@@ -151,6 +152,7 @@ std = [
 	"pallet-society/std",
 	"pallet-recovery/std",
 	"pallet-vesting/std",
+	"frame-try-runtime/std",
 ]
 runtime-benchmarks = [
 	"frame-benchmarking",
@@ -186,3 +188,7 @@ runtime-benchmarks = [
 	"frame-system-benchmarking",
 	"hex-literal",
 ]
+try-runtime = [
+	"frame-executive/try-runtime",
+	"frame-try-runtime",
+]

bin/node/runtime/src/lib.rs

@@ -1080,7 +1080,14 @@ pub type SignedPayload = generic::SignedPayload<Call, SignedExtra>;
 /// Extrinsic type that has already been checked.
 pub type CheckedExtrinsic = generic::CheckedExtrinsic<AccountId, Call, SignedExtra>;
 /// Executive: handles dispatch to the various modules.
-pub type Executive = frame_executive::Executive<Runtime, Block, frame_system::ChainContext<Runtime>, Runtime, AllModules>;
+pub type Executive = frame_executive::Executive<
+	Runtime,
+	Block,
+	frame_system::ChainContext<Runtime>,
+	Runtime,
+	AllModules,
+	(),
+>;
 
 /// MMR helper types.
 mod mmr {
@@ -1325,15 +1332,46 @@ impl_runtime_apis! {
 		}
 	}
 
+	#[cfg(feature = "try-runtime")]
+	impl frame_try_runtime::TryRuntime<Block> for Runtime {
+		fn on_runtime_upgrade(target: frame_try_runtime::Target) -> Weight {
+			frame_support::debug::RuntimeLogger::init();
+
+			let weight = match target {
+				frame_try_runtime::Target::All => {
+					frame_support::debug::info!("Dry-running all on-runtime-upgrades.");
+					Executive::dry_run_runtime_upgrade()
+				},
+				frame_try_runtime::Target::Pallet(name) => {
+					let name = sp_std::str::from_utf8(&name).unwrap();
+					frame_support::debug::info!("Dry-running on-runtime-upgrade of {}.", name);
+
+					frame_try_runtime::match_pallet_on_runtime_upgrade!(name,
+						System, Utility, Babe, Timestamp, Authorship, Indices, Balances,
+						TransactionPayment, Staking, Session, Democracy, Council,
+						TechnicalCommittee, Elections, TechnicalMembership, Grandpa, Treasury,
+						Contracts, Sudo, ImOnline, AuthorityDiscovery, Offences, Historical,
+						RandomnessCollectiveFlip, Identity,  Society, Recovery, Vesting, Scheduler,
+						Proxy, Multisig, Bounties, Tips, Assets, Mmr, Lottery,
+					)
+					// TODO: ^^ this can be done better, or generated by construct runtime at the
+					// least.
+				}
+			};
+
+			weight
+		}
+	}
+
 	#[cfg(feature = "runtime-benchmarks")]
 	impl frame_benchmarking::Benchmark<Block> for Runtime {
 		fn dispatch_benchmark(
 			config: frame_benchmarking::BenchmarkConfig
 		) -> Result<Vec<frame_benchmarking::BenchmarkBatch>, sp_runtime::RuntimeString> {
 			use frame_benchmarking::{Benchmarking, BenchmarkBatch, add_benchmark, TrackedStorageKey};
-			// Trying to add benchmarks directly to the Session Pallet caused cyclic dependency issues.
-			// To get around that, we separated the Session benchmarks into its own crate, which is why
-			// we need these two lines below.
+			// Trying to add benchmarks directly to the Session Pallet caused cyclic dependency
+			// issues. To get around that, we separated the Session benchmarks into its own crate,
+			// which is why we need these two lines below.
 			use pallet_session_benchmarking::Module as SessionBench;
 			use pallet_offences_benchmarking::Module as OffencesBench;
 			use frame_system_benchmarking::Module as SystemBench;

client/state-db/src/lib.rs

@@ -24,12 +24,12 @@
 //! Canonicalization window tracks a tree of blocks identified by header hash. The in-memory
 //! overlay allows to get any node that was inserted in any of the blocks within the window.
 //! The tree is journaled to the backing database and rebuilt on startup.
-//! Canonicalization function selects one root from the top of the tree and discards all other roots and
-//! their subtrees.
+//! Canonicalization function selects one root from the top of the tree and discards all other roots
+//! and their subtrees.
 //!
 //! # Pruning.
-//! See `RefWindow` for pruning algorithm details. `StateDb` prunes on each canonicalization until pruning
-//! constraints are satisfied.
+//! See `RefWindow` for pruning algorithm details. `StateDb` prunes on each canonicalization until
+//! pruning constraints are satisfied.
 
 mod noncanonical;
 mod pruning;
@@ -237,8 +237,7 @@ impl<BlockHash: Hash + MallocSizeOf, Key: Hash + MallocSizeOf> StateDbSync<Block
 		);
 		match &db_mode {
 			Some(v) if v.as_slice() == mode.id() => Ok(()),
-			Some(v) => Err(Error::InvalidPruningMode(String::from_utf8_lossy(v).into())),
-			None => Ok(()),
+			_ => Ok(()),
 		}
 	}
 

frame/executive/Cargo.toml

@@ -47,3 +47,6 @@ std = [
 	"sp-tracing/std",
 	"sp-std/std",
 ]
+try-runtime = [
+	"frame-support/try-runtime"
+]