* Parachains double vote handler initial implementation.

* Make tests test the actual slashing.

* Implement SignedExtension validation of double vote reports.

* Fixes build after merge

* Review fixes

* Adds historical session proofs

* Review fixes.

* Bump runtime spec_version

* Get the session number from the proof

* Check that proof matches session

* Change signature type on DoubleVoteReport

* Adds docs and removes blank lines

* Removes leftover code

* Fix build

* Fix build after a merge

* Apply suggestions from code review

Co-Authored-By: Robert Habermeier <[email protected]>

* Prune ParentToSessionIndex

* Remove a clone and a warning

Co-authored-by: Robert Habermeier <[email protected]>
Co-authored-by: Gavin Wood <[email protected]>

* Updates for the new democracy

* Introduce progressive democracy

Also move to "master" branch of Substrate ready for continuous
sync with Substrate master.

* Remove migration code.

* Bump Substrate

* Bump runtime

* bump version to v0.7.27

* update to latest substrate polkadot-master

* bump runtime impl_version

* Bump version and Substrate

* Version

* Lock

* Refactor storage of various modules.

* The real list of claims

* Migration away from opaque maps

* Fix

* Fix for task executor API change

* Insert storage for finality tracker

* Bump lock

* Bump version

* Bump version

* Cargo lock

* Bump runtime version

* Bump Substrate again to include recent fix

* Flag to force kusama runtime

* Chainspecs for kusama

* Polkadot config for westend

Co-Authored-By: Bastian Köcher <[email protected]>

* network/src/legacy/gossip: Wrap GossipEngine in Arc Mutex & lock it on use

`GossipEngine` in itself has no need to be Send and Sync, given that it
does not rely on separately spawned background tasks anymore.
`RegisteredMessageValidator` needs to be `Send` and `Sync` due to the
inherited trait bounds from implementing `GossipService`. In addition
`RegisteredMessageValidator` derives `Clone`. Thereby `GossipEngine`
needs to be wrapped in an `Arc` and `Mutex` to keep the status quo.

* Needed fixes.

* Fixes

* Fixed build

* Fixed build w benchmarking CLI

* Fixed building tests

* Added --dev shortcut

Co-authored-by: arkpar <[email protected]>
Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: Max Inden <[email protected]>

* fix

* Starting to add benchmarks

* make compile

* add benchmarks

* Make work with Substrate master

* Bench validate unsigned

* back to polkadot master

* starting to add cli with feature flag

* more stuff

* Add to kusama

* Update Cargo.lock

* fix dev dep

* bump wasm builder

* Remove encode from keccak benchmark

* bump spec

* Add weight documentation

* Update Cargo.lock

* Update check_runtime.sh

* Update publish_draft_release.sh

* Update Cargo.lock

Co-authored-by: thiolliere <[email protected]>

* Copy over files

* Most network tests work

* Fix copyrights

* Strip out unneeded pallets

* Update test-runtime and remove unused network test things

* Upgrade test runtime

* Strip more things out of the test runtime

* Bump kusama impl version

* Bump version to knock the -dev

* Update lock

* Bump Substrate and some fixes

* Bump runtime

* version bump

* expunge legacy code from polkadot-network

* mostly rip out old legacy protocol from service

* ensure validation work is spawned by incoming messages

* decouple availabliity store from network logic; clean up data flow

* av_store: test helpers and use futures-abort

* update polkadot-validation to pass n_validators when submitting chunks

* fallible erasure-chunk fetching

* implement `ErasureNetworking` for new network prot

* API for registering availability store in network

* fully integrate new network service into service

* fix validation tests

* scaffolding for porting collator over to new network

* track connected validators' peer IDs and distribute collators' collations

* helper in network for fetching all checked statements

* fix adder-collator

* actually register notifications protocol

* Update service/src/lib.rs

* Make needed changes to service

* Merge two companion PRs.

- #880
- #881

* Some e...

* Switch branch

* Small changes

* Update substrate branch

* Switch

* Revert "Switch branch"

This reverts commit b9d48b2ce8f5cbfa379dd385e817e80870391d9d.

* fix

* add `wipe` and `commit`

* Remove deprecated_host_interface

* Switch branch

* HasherFor -> HashFor

* More HasherFor changes

* Final touches

* Revert "Switch branch"

This reverts commit d0da27313839559de01f59690f3826fe587becb8.

Co-authored-by: thiolliere <[email protected]>
Co-authored-by: Shawn Tabrizi <[email protected]>

* Begin to update to latest Substrate master

* Fix compilation

* Remove `Balances` from `OnKilledAccount`

* Update cli/src/command.rs

Co-Authored-By: Cecile Tonglet <[email protected]>

* Change gossip name

* Change again

Co-authored-by: Cecile Tonglet <[email protected]>

* encode the candidate statement as only the hash

* refactor CandidateReceipt and CollationInfo

* introduce an abridged candidate receipt type

* erasure coding stores candidate receipt

* store omitted data instead and introduce AvailableData type

* refactor availability-store schema

* tweak schema and APIs a bit more

* get availability-store tests passing

* accept AbridgedCandidateReceipt in `set_heads`

* change statement type in primitives to be hash-only

* fix parachains runtime tests

* fix bad merge

* rewrite validation pipeline

* remove evaluation module

* use abridged candidate hash as canonical

* statement table uses abridged candidate receipts

* kill availability_store::Data struct

* port shared table to new validation pipelines

* extract full validation pipeline to helper

* remove old validation pipeline from collation module

* polkadot-validation compiles

* polkadot-validation tests compile

* make local collation available in validation service

* port legacy network code

* polkadot-network fully ported

* network: ensure fresh statement is propagated

* remove pov_block_hash from LocalValidationData

* remove candidate_hash field from AttestedCandidate and update runtime

* port runtimes to new ParachainHost definition

* port over polkadot-collator

* fix test compilation

* better fix

* remove unrelated validation work dispatch fix

* address grumbles

* fix equality check

* Separate `WeightToFee` calculation for Kusama and Polkadot

* Bump spec

* try to update

* latest updates

* final fixes

* Fix claim w/ vesting logic

* Make claim tests a bit better

Co-authored-by: Shawn Tabrizi <[email protected]>

* WIP

* WIp

* Mostly get tests to compile

* Fix adder collator

* Remove more stuff

* Revert some changes to av store

* Fix av store tests

* Nitpicks

* Restore some things

* Small changes

* Remvoe unused error variants

* add a maximum code size and head data size

* get existing tests passing

* add tests for slots logic

* test registrar behavior

* introduce maximums and bump versions

* address review grumbles

* work around publicizing derive

* remove unneeded and wrong doc

* Be specific about the `BitVec` generic arguments

Currently we use the default generic arguments for `BitVec`. This means
we use `BigEndian` and `u8`. These default values are not stable, with
`0.17` of the `BitVec` crate this changes. To make sure we don't break
anything in the future, make sure we explictly set the generics.

* Update `spec_version`

* enable migrations in polkadot and kusama runtimes

* bump runtime version

* runtime: candidate receipt must pass parent head

* construct parachain candidates using correct parent_head

* validate that the parent header is correct in candidate receipt

* fix test fallout

* bump runtime versions

* Amalgamate pieces of balance module

* Fixes for vesting split

* Refactoring for vesting/balances split

* Build fixes

* Remove on_free_balance_zero and some docs.

* Indentation.

* Revert branch

* Fix.

* Update substrate: fixes after CLI refactoring

* Reverting removal of exit

* Removed too much again

* Update Cargo.lock

* Cargo.lock

* Update Substrate, ready for #4820

* Fixes

* Update to latest substrate master

* Fix network tests

* Update lock

* Fix tests

* Update futures to get bug fixes

* Fix tests for new balances/vesting logic

* Cargo fix

* Another fix

Co-authored-by: Cecile Tonglet <[email protected]>
Co-authored-by: Robert Habermeier <[email protected]>
Co-authored-by: Bastian Köcher <[email protected]>

* Bump runtime version

* Bump runtime version

* Update to latest Substrate master

* upgrade decl_storage declaration

* Companion PR to Substrate#4752

* Substrate update: Identity should bound additional fields (#4770)

Substrate commit: 2c9ce7296b19934b1ffd50150be2fdb2ddf81a4e

* WIP

* WIP

* Updated substrate and fixes

* Fix compilation and switch to latest wasm-builder-runner

* Fixed missing doc

* Update collator/src/lib.rs

Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: thiolliere <[email protected]>
Co-authored-by: Pierre Krieger <[email protected]>
Co-authored-by: Cecile Tonglet <[email protected]>

* Update to latest Substrate master

* upgrade decl_storage declaration

* Companion PR to Substrate#4752

Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: thiolliere <[email protected]>
Co-authored-by: Pierre Krieger <[email protected]>

* use decl_error in common runtime modules

* Apply suggestions from code review

Co-authored-by: Bastian Köcher <[email protected]>