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feat: add new staking pallet #46

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feat: add new staking pallet #46

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ac738bb
feat: radd staking fork to the skeleton
lrazovic Jul 10, 2023
f62a660
docs: update README
lrazovic Jul 10, 2023
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3,759 changes: 3,759 additions & 0 deletions polimec-skeleton/pallets/parachain-staking/Cargo.lock
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65 changes: 65 additions & 0 deletions polimec-skeleton/pallets/parachain-staking/Cargo.toml
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[package]
name = "pallet-parachain-staking"
description = "parachain staking pallet for collator selection and reward distribution"
edition = "2021"
version = "3.0.0"

[dependencies]
serde = { version = "1", default-features = false, optional = true }
log = "0.4"

# Substrate
frame-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.42", optional = true }
frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.42" }
frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.42" }
parity-scale-codec = { version = "3.3.0", default-features = false, features = [
"derive",
] }
scale-info = { version = "2.3.1", default-features = false, features = [
"derive",
] }
sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.42" }
sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.42" }
substrate-fixed = { git = "https://github.com/encointer/substrate-fixed", default-features = false }
sp-staking = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.42", default-features = false }
pallet-authorship = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.42", default-features = false }
pallet-session = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.42", default-features = false }

[dev-dependencies]
pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.42", features = [
"std",
] }
pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.42", features = [
"std",
] }
pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.42", features = [
"std",
] }
similar-asserts = "1.1.0"
sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.42", features = [
"std",
] }
sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.42", features = [
"std",
] }
sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.42", features = [
"std",
] }

[features]
default = ["std"]
std = [
"frame-benchmarking?/std",
"frame-support/std",
"frame-system/std",
"parity-scale-codec/std",
"scale-info/std",
"serde/std",
"sp-runtime/std",
"sp-std/std",
"sp-staking/std",
"pallet-authorship/std",
"pallet-session/std",
]
runtime-benchmarks = ["frame-benchmarking"]
try-runtime = ["frame-support/try-runtime"]
12 changes: 12 additions & 0 deletions polimec-skeleton/pallets/parachain-staking/README.md
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# DPoS Pallet for Parachain Staking

This repository contains a modified version of Moonbeam's 'parachain_staking' Substrate Pallet. The original version can be found [here](https://github.com/PureStake/moonbeam/tree/master/pallets/parachain-staking).

## Modifications
The modifications to the original pallet include the following:
1. Removed Nimbus Dependencies: The original dependencies on Nimbus have been removed. This simplifies the usage of the pallet and makes it independent of Nimbus.
2. Implemented Traits from **pallet_authorship** and **pallet_session**: To replace some functionality previously provided by Nimbus, several traits from pallet_authorship and pallet_session have been implemented:
- **EventHandler** from *pallet_authorship*: This trait is used to note the block author and award them points for producing a block. The points are then used for staking purposes.
- **SessionManager** from *pallet_session*: This trait is used to manage the start and end of sessions, as well as assemble new collators for new sessions.
- **ShouldEndSession** from *pallet_session*: This trait is used to decide when a session should end.
- **EstimateNextSessionRotation** from *pallet_session*: This trait is used to estimate the average session length and the current session progress, as well as estimate the next session rotation.
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