First commit Alpha Testnet v.0.0.4

.gitignore

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+/**/target
+**/*.rs.bk
+/keys
+/data*
+/shell.nix

Cargo.toml

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+[package]
+name = "betelgeuse"
+version = "0.0.4"
+authors = ["MVS Core DEV Team"]
+license = "GPL-3.0-or-later"
+build = "build.rs"
+edition = "2018"
+
+[[bin]]
+name = "betelgeuse"
+path = "src/main.rs"
+
+[dependencies]
+futures = "0.3"
+log = "0.4"
+structopt = "0.3"
+codec = { package = "parity-scale-codec", version = "1.0.0", features = ["derive"] }
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+jsonrpc-core = "15.0.0"
+parking_lot = "0.10.0"
+
+sc-cli = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sc-rpc = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sp-keystore = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sc-keystore = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sp-core = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sp-api = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sp-blockchain = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sp-block-builder = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sc-rpc-api = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sp-timestamp = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sc-executor = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sc-service = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sp-inherents = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sc-transaction-pool = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sp-transaction-pool = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sc-network = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sc-consensus-pow = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sp-consensus = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sc-consensus = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sc-finality-grandpa = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sp-finality-grandpa = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sc-client-api = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sp-runtime = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+sc-basic-authorship = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+substrate-frame-rpc-system = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+pallet-transaction-payment-rpc = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+
+pallet-grandpa = { version = "2.0.0", git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+pallet-session = { version = "2.0.0", git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+pallet-authorship = { version = "2.0.0", git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+
+pallet-rewards = { path = "frame/rewards" }
+pallet-eras = { path = "frame/eras" }
+betelgeuse-pow = { path = "pow" }
+betelgeuse-runtime = { path = "runtime" }
+betelgeuse-primitives = { path = "primitives" }
+
+# benchmarking
+frame-benchmarking = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+frame-benchmarking-cli = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+
+[build-dependencies]
+substrate-build-script-utils = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b" }
+
+[features]
+default = []
+wasmtime = [
+	"sc-executor/wasmtime",
+	"sc-cli/wasmtime",
+	"sc-service/wasmtime",
+]
+runtime-benchmarks = [
+	"wasmtime",
+	"betelgeuse-runtime/runtime-benchmarks",
+]
+
+[workspace]
+members = [
+	"runtime",
+	"pow",
+	"frame/rewards",
+	"frame/eras",
+]

build.rs

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+use substrate_build_script_utils::{generate_cargo_keys, rerun_if_git_head_changed};
+
+fn main() {
+	generate_cargo_keys();
+
+	rerun_if_git_head_changed();
+}

frame/difficulty/Cargo.toml

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+[package]
+name = "pallet-difficulty"
+version = "2.4.0"
+authors = ["Wei Tang <wei@that.world>"]
+license = "GPL-3.0-or-later"
+edition = "2018"
+description = "Difficulty adjustment module"
+
+[dependencies]
+serde = { version = "1.0.101", optional = true }
+codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
+sp-std = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+sp-core = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+sp-runtime = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+sp-timestamp = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+frame-system = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+frame-support = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+pallet-timestamp = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+
+betelgeuse-primitives = { path = "../../primitives", default-features = false }
+
+[features]
+default = ["std"]
+std = [
+	"serde",
+	"codec/std",
+	"sp-std/std",
+	"sp-core/std",
+	"sp-runtime/std",
+	"sp-timestamp/std",
+	"frame-system/std",
+	"frame-support/std",
+	"pallet-timestamp/std",
+	"betelgeuse-primitives/std",
+]

frame/difficulty/src/lib.rs

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+// SPDX-License-Identifier: GPL-3.0-or-later
+// This file is part of Betelgeuse.
+//
+// Copyright (c) 2019-2020 Wei Tang.
+//
+// Betelgeuse is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Betelgeuse is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Betelgeuse. If not, see <http://www.gnu.org/licenses/>.
+
+//! Difficulty adjustment module.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+use codec::{Encode, Decode};
+use sp_std::cmp::{min, max};
+use sp_core::U256;
+use sp_runtime::traits::UniqueSaturatedInto;
+use sp_timestamp::OnTimestampSet;
+use frame_support::{decl_storage, decl_module, traits::Get};
+use betelgeuse_primitives::{
+	DIFFICULTY_ADJUST_WINDOW, DIFFICULTY_DAMP_FACTOR, CLAMP_FACTOR,
+	MIN_DIFFICULTY, MAX_DIFFICULTY, Difficulty,
+};
+
+#[derive(Encode, Decode, Clone, Copy, Eq, PartialEq, Debug)]
+pub struct DifficultyAndTimestamp<M> {
+	pub difficulty: Difficulty,
+	pub timestamp: M,
+}
+
+/// Move value linearly toward a goal
+pub fn damp(actual: u128, goal: u128, damp_factor: u128) -> u128 {
+	(actual + (damp_factor - 1) * goal) / damp_factor
+}
+
+/// limit value to be within some factor from a goal
+pub fn clamp(actual: u128, goal: u128, clamp_factor: u128) -> u128 {
+	max(goal / clamp_factor, min(actual, goal * clamp_factor))
+}
+
+pub trait Config: pallet_timestamp::Config {
+	/// Target block time in millseconds.
+	type TargetBlockTime: Get<Self::Moment>;
+}
+
+decl_storage! {
+	trait Store for Module<T: Config> as Difficulty {
+		/// Past difficulties and timestamps, from earliest to latest.
+		PastDifficultiesAndTimestamps:
+		[Option<DifficultyAndTimestamp<T::Moment>>; 60]
+			= [None; DIFFICULTY_ADJUST_WINDOW as usize];
+		/// Current difficulty.
+		pub CurrentDifficulty get(fn difficulty) build(|config: &GenesisConfig| {
+			config.initial_difficulty
+		}): Difficulty;
+		/// Initial difficulty.
+		pub InitialDifficulty config(initial_difficulty): Difficulty;
+	}
+}
+
+decl_module! {
+	pub struct Module<T: Config> for enum Call where origin: T::Origin {
+		/// Target block time in milliseconds.
+		const TargetBlockTime: T::Moment = T::TargetBlockTime::get();
+	}
+}
+
+impl<T: Config> OnTimestampSet<T::Moment> for Module<T> {
+	fn on_timestamp_set(now: T::Moment) {
+		let block_time = UniqueSaturatedInto::<u128>::unique_saturated_into(T::TargetBlockTime::get());
+		let block_time_window = DIFFICULTY_ADJUST_WINDOW as u128 * block_time;
+
+		let mut data = PastDifficultiesAndTimestamps::<T>::get();
+
+		for i in 1..data.len() {
+			data[i - 1] = data[i];
+		}
+
+		data[data.len() - 1] = Some(DifficultyAndTimestamp {
+			timestamp: now,
+			difficulty: Self::difficulty(),
+		});
+
+		let mut ts_delta = 0;
+		for i in 1..(DIFFICULTY_ADJUST_WINDOW as usize) {
+			let prev: Option<u128> = data[i - 1].map(|d| d.timestamp.unique_saturated_into());
+			let cur: Option<u128> = data[i].map(|d| d.timestamp.unique_saturated_into());
+
+			let delta = match (prev, cur) {
+				(Some(prev), Some(cur)) => cur.saturating_sub(prev),
+				_ => block_time.into(),
+			};
+			ts_delta += delta;
+		}
+
+		if ts_delta == 0 {
+			ts_delta = 1;
+		}
+
+		let mut diff_sum = U256::zero();
+		for i in 0..(DIFFICULTY_ADJUST_WINDOW as usize) {
+			let diff = match data[i].map(|d| d.difficulty) {
+				Some(diff) => diff,
+				None => InitialDifficulty::get(),
+			};
+			diff_sum += diff;
+		}
+
+		if diff_sum < U256::from(MIN_DIFFICULTY) {
+			diff_sum = U256::from(MIN_DIFFICULTY);
+		}
+
+		// adjust time delta toward goal subject to dampening and clamping
+		let adj_ts = clamp(
+			damp(ts_delta, block_time_window, DIFFICULTY_DAMP_FACTOR),
+			block_time_window,
+			CLAMP_FACTOR,
+		);
+
+		// minimum difficulty avoids getting stuck due to dampening
+		let difficulty = min(U256::from(MAX_DIFFICULTY),
+							 max(U256::from(MIN_DIFFICULTY),
+								 diff_sum * U256::from(block_time) / U256::from(adj_ts)));
+
+		<PastDifficultiesAndTimestamps<T>>::put(data);
+		<CurrentDifficulty>::put(difficulty);
+	}
+}

frame/eras/Cargo.toml

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+[package]
+name = "pallet-eras"
+version = "2.4.0"
+authors = ["Wei Tang <wei@that.world>"]
+license = "GPL-3.0-or-later"
+edition = "2018"
+description = "Era information recording for later use."
+
+[dependencies]
+serde = { version = "1.0.101", optional = true }
+codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
+sp-std = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+frame-system = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+frame-support = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+
+[features]
+default = ["std"]
+std = [
+	"serde",
+	"codec/std",
+	"sp-std/std",
+	"frame-system/std",
+	"frame-support/std",
+]

frame/eras/src/lib.rs

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+// SPDX-License-Identifier: GPL-3.0-or-later
+// This file is part of Betelgeuse.
+//
+// Copyright (c) 2020 Wei Tang.
+//
+// Betelgeuse is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Betelgeuse is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Betelgeuse. If not, see <http://www.gnu.org/licenses/>.
+
+//! Era information recording.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+use codec::{Encode, Decode};
+#[cfg(feature = "std")]
+use serde::{Serialize, Deserialize};
+use sp_std::prelude::*;
+use frame_support::{decl_storage, decl_module};
+
+#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
+#[derive(Encode, Decode)]
+pub struct Era<H> {
+	/// Genesis block hash of the era.
+	pub genesis_block_hash: H,
+	/// Final block hash.
+	pub final_block_hash: H,
+	/// Final state root.
+	pub final_state_root: H,
+}
+
+pub trait Config: frame_system::Config { }
+
+decl_storage! {
+	trait Store for Module<T: Config> as Eras {
+		/// Past eras.
+		pub PastEras get(fn past_eras) config(past_eras): Vec<Era<T::Hash>>;
+	}
+}
+
+decl_module! {
+	pub struct Module<T: Config> for enum Call where origin: T::Origin { }
+}

frame/rewards/Cargo.toml

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+[package]
+name = "pallet-rewards"
+version = "2.4.0"
+authors = ["Wei Tang <wei@that.world>"]
+license = "GPL-3.0-or-later"
+edition = "2018"
+
+[dependencies]
+serde = { version = "1.0.101", optional = true }
+codec = { package = "parity-scale-codec", version = "1.0.0", default-features = false, features = ["derive"] }
+sp-runtime = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+sp-std = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+sp-inherents = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+sp-consensus-pow = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+frame-support = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+frame-system = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+
+# Benchmarking
+frame-benchmarking = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false, optional = true }
+
+[dev-dependencies]
+sp-core = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+sp-io = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+pallet-balances = { git = "https://github.com/Sarmale-Team/substrate", rev = "62e252b", default-features = false }
+
+[features]
+default = ["std"]
+std = [
+	"serde",
+	"codec/std",
+	"sp-runtime/std",
+	"sp-std/std",
+	"sp-inherents/std",
+	"sp-consensus-pow/std",
+	"frame-support/std",
+	"frame-system/std",
+]
+runtime-benchmarks = [
+	"frame-benchmarking",
+	"frame-support/runtime-benchmarks",
+]