ethcore: add clique engine (#9981)

* fix broken sync

* correct seal fields

* ethcore: fix comment

* parity: remove duplicate params

* clique: fix whitespaces

* ethcore: fix goerli chain spec

* refactor signer_snapshot into pending/finalized state

* move close_block_extra_data after seal is applied

* refactor most of the logic into the signer_snapshot

* clique: refactor locking logic out of the consensus engine interface

* Fix jsonspec and add an unittest

* Replace space with tabs

* Unbroke sync

* Fix broken sync

* 1/2 state tracking without votes

* 2/2 implement vote tracking

* ci: use travis for goerli

* ci: setup a clique network

* ci: sync a görli node

* add clique deploy script

* ci: fix paths in clique deploy script

* ci: use docker compose

* ci: fix travis job names

* ci: fix build deps

* ci: massively reduce tests

* Revert "ci: massively reduce tests"

This reverts commit 6369f0b069ed2607a7e9f2e1d85489bacdc43384.

* ci: run cargo test directly

* ci: separate build and test stages

* ci: cache rust installation

* ci: simplify ci stages

* ci: make clique deploy script executable

* ci: shutdown goerli sync after 20min

* ci: remove slow sync stage

* ci: use timeout to finish jobs

* ci: fix build path

* ci: use absolute paths to end this confusion

* ci: add geth and parity to path

* ci: be more verbose

* ci: allow for more relaxed caching timeout

* ci: update repositories for custom ppa

* ci: fix typo in file name

* ci: fix docker compose file

* ci: add ethkey to docker

* ci: make sure deploy script is up to date with upstream

* ci: stop docker container after certain time

* ci: force superuser to update permissions on docker files

* ci: reduce run time of script to ~30 min

* ci: remove duplicate caching in travis

* remove trace statements

* clique: add more validation involving the recent signer list

* ethcore: enable constantinople for rinkeby

* ethcore: fix whitespaces in rinkeby spec

* ethcore: reformat goerli.json

* Revert "ci: remove duplicate caching in travis"

This reverts commit a562838d3d194d37f9871dcbe00b783637978f89.

* tmp commit

* another tmp commit

* it builds!

* add sealing capabilities

* add seal_header hook to allow separation of block seal/importing code paths

* clique: remove populate_from_parent.

* add panic

* make turn delay random

* initialize OpenBlock properly in 'enact'

* misc: remove duplicate lines

* misc: fix license headers

* misc: convert spaces to tabs

* misc: fix tabs

* Update Cargo.toml

* Update Cargo.toml

* Update Cargo.toml

* clique: ensure validator restores state before trying to seal

* clique: make 'state' return an Error.  Make some error messages more clear

* Fix compile error after rebase & toolchain upgrade

* fix a bunch of import warnings

* Refactor code

* Fix permissions

* Refactoring syncing

* Implement full validator checks

* Refactor util functions to seperate file

* mining 1

* ethcore: add chainspec for kotti

* ethcore: rename pre-goerli configs

* ethcore: load kotti chain spec

* cli: add kotti to params

* Implement working local sealing

* making sealing & syncing work together

* Relax timestamp checking

* ethcore: prepare for the real goerli to launch

* Implement NOTURN wiggle properly & cleanupnup warnings

* Implement vote casting

* Update docs & skip signing if no signer

* Optimize step-service interval

* Record state on local sealed block

* Fix script filemode

* Cleaning up codebase

* restore enact trace logging

* Delete clique.sh and move sync.sh

* remove travis.yml

* Remove dead code

* Cleanup compile warning

* address review comments

* adding more comments and removing unwrap()

* ci: remove sync script

* Address review comments

* fix compile error

* adding better debugging for timing

* Implement an dedicated thread for sealing timing

* fix(add helper for timestamp overflows) (#10330)

* fix(add helper timestamp overflows)

* fix(simplify code)

* fix(make helper private)

* snap: official image / test (#10168)

* official image / test

* fix / test

* bit more necromancy

* fix paths

* add source bin/df /test

* add source bin/df /test2

* something w paths /test

* something w paths /test

* add source-type /test

* show paths /test

* copy plugin /test

* plugin -> nil

* install rhash

* no questions while installing rhash

* publish snap only for release

* fix(docker): fix not receives SIGINT (#10059)

* fix(docker): fix not receives SIGINT

* fix: update with reviews

* update with review

* update

* update

* Don't add discovery initiators to the node table (#10305)

* Don't add discovery initiators to the node table

* Use enums for tracking state of the nodes in discovery

* Dont try to ping ourselves

* Fix minor nits

* Update timeouts when observing an outdated node

* Extracted update_bucket_record from update_node

* Fixed typo

* Fix two final nits from @todr

* change docker image based on debian instead of ubuntu due to the chan… (#10336)

* change docker image based on debian instead of ubuntu due to the changes of the build container

* role back docker build image and docker deploy image to ubuntu:xenial based (#10338)

* Bundle protocol and packet_id together in chain sync (#10315)

Define a new `enum` where devp2p subprotocol packet ids (currently eth and par) are defined. Additionally provide functionality to query id value and protocol of a given id object.

* snap: prefix version and populate candidate channel (#10343)

* snap: populate candidate releases with beta snaps to avoid stale channel

* snap: prefix version with v*

* addressing review comments

* engine: fix copyright header

* scripts: restore permissions on sign command

* ethcore: enforce tabs

* ethcore: enforce tabs

* ethcore: enforce tabs

* addressing comments

* addressing comments

* addressing more comments

* addressing more comments

* addressing more comments

* addressing more comments

* addressing more comments

* json-spec: fix clique epoch to non-zero u64

* ci: enable travis for parity goerli

* ci: don't separate build and test step

* ci: don't run c++ tests on travis

* ci: simplify cargo test to squeeze into travis timeout

* ci: don't run tests on travis at all

* style(fixes)

* fix(add tests)

* fix(recent_signer bug)

* fix(complete all tests)

* fix(nits)

* fix(simplify asserts)

* fix(cliqueState): simplify code

* fix(nits)

* docs(comments what's need to fixed)

* fix(revert unintended changes)

* fix(tests)

* fix(logs): voting logs

* fix(readability + more logs)

* fix(sync)

* docs(add missing licens header)

* fix(log): info! -> trace!

* docs(fix nits) + fix(remove assert)

* perf(use counter instead of vec)

* fix(remove needless block in match)

* fix(faulty comment)

* grumbles(docs for tests)

* fix(nits)

* fix(revert_vote): only remove vote when votes == 0

* fix(vote counter): checked arithmetics

* fix(simplify tests)

* fix(nits)

* fix(clique): err types

* fix(clique utils): make use of errors

* fix(cleanup nits)

* fix(clique sealing): don't read state no signer

* fix(replace Vec<Signers> with BTreeSet<Signers>)

* fix(tests): BTreeSet and more generic helpers

* fix(nits)

* fix(ethcore_block_seal): remove needless `Box`

* fix(faulty log): info -> trace

* fix(checked SystemTime): prevent SystemTime panics

* style(chain cfg): space after `:`

* style(fn enact): fix whitespace

* docs(clique): StepService

* docs(nit): fix faulty comment

* docs(fix typo)

* style(fix bad indentation)

* fix(bad regex match)

* grumble(on_seal_block): make `&mut` to avoid clone

* docs(on_seal_block): fix faulty documentation

* Delete .travis.yml

* docs: remove eth hf references in spec

* Update client.rs

* fix(nits)

* fix(clique step): `RwLock` -> `AtomicBool`

* fix(clique): use `Duration::as_millis`

* Clean up some Clique documentation

Co-authored-by: soc1c <soc1c@users.noreply.github.com>
Co-authored-by: HCastano <HCastano@users.noreply.github.com>
Co-authored-by: niklasad1 <niklasad1@users.noreply.github.com>
Co-authored-by: jwasinger <jwasinger@users.noreply.github.com>
Co-authored-by: ChainSafe <ChainSafe@users.noreply.github.com>
Co-authored-by: thefallentree <thefallentree@users.noreply.github.com>
Co-authored-by: 5chdn <5chdn@users.noreply.github.com>

parity/cli/mod.rs

@@ -300,7 +300,7 @@ usage! {
 
 			ARG arg_chain: (String) = "foundation", or |c: &Config| c.parity.as_ref()?.chain.clone(),
 			"--chain=[CHAIN]",
-			"Specify the blockchain type. CHAIN may be either a JSON chain specification file or ethereum, classic, poacore, tobalaba, expanse, musicoin, ellaism, easthub, social, mix, callisto, morden, ropsten, kovan, poasokol, testnet, or dev.",
+			"Specify the blockchain type. CHAIN may be either a JSON chain specification file or ethereum, classic, poacore, tobalaba, expanse, musicoin, ellaism, easthub, social, mix, callisto, morden, ropsten, kovan, rinkeby, goerli, kotti, poasokol, testnet, or dev.",
 
 			ARG arg_keys_path: (String) = "$BASE/keys", or |c: &Config| c.parity.as_ref()?.keys_path.clone(),
 			"--keys-path=[PATH]",
@@ -926,7 +926,7 @@ usage! {
 			"--whisper",
 			"Enable the Whisper network.",
 
- 			ARG arg_whisper_pool_size: (usize) = 10usize, or |c: &Config| c.whisper.as_ref()?.pool_size.clone(),
+			ARG arg_whisper_pool_size: (usize) = 10usize, or |c: &Config| c.whisper.as_ref()?.pool_size.clone(),
 			"--whisper-pool-size=[MB]",
 			"Target size of the whisper message pool in megabytes.",