* 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]>

* Bump parity-util-mem

* Change util mem version to wildcard

* Updates for the new democracy

* Introduce progressive democracy

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

* Add cli to wasm tests, update and bring closer to the substrate browser code

* Remove ws.js

* Update cli/src/browser.rs

Co-Authored-By: Pierre Krieger <[email protected]>

* Update browser.rs

Co-authored-by: Gavin Wood <[email protected]>
Co-authored-by: Pierre Krieger <[email protected]>

Co-authored-by: Gav Wood <[email protected]>

we were getting double-posts for newly-published releases - we don't need to post to the channel when releases are updated.

* Move publish_draft_release to test stage

Also remove the alert_pending_release job since it's no longer needed

* delete alert_pending_release.sh

* Add splitting substrate changes into subsections

* Remove migration code.

* Bump Substrate

* Bump runtime

* Add clang

* Upgrade kvdb-rocksdb version

* bump version to v0.7.27

* update to latest substrate polkadot-master

* bump runtime impl_version

* hardfork the GRANDPA authority set in kusama to fix migration issue

* move grandpa integration code

* remove unnecessary grandpa hard fork

* update to latest substrate polkadot-master

* grandpa: add voting rule to pause new votes for a period

* grandpa: increase delay

* grandpa: parse custom pause delay from cli

* grandpa: log scheduled pause on startup

* grandpa: rename parameter to grandpa_pause

* grandpa: make pause voting rule generic on block

* grandpa: add test for pause voting rule

* grandpa: add hardcoded pause

* collator: fix test compilation

* 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

* move protocol.rs into subfolder

* add trait for mocking network behavior

* add a mock version of network ops

* remove some redundant parameters from service messages

* ensure fetching erasure chunks automatically cancels

* introduce dummy ProvideRuntimeApi

* abstract over gossip somewhat

* add mock gossip handler

* skeleton test

* remove dependence of shared table on router

* remove worker dependence on its own sender

* test shutdown

* add tests

* test that gossip streams are cleaned up correctly

* refactor worker out into its own struct and reduce bound on executor

* remove reliance of tests on global thread pool

* 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

* Fix browser node

* Use feature instead

Remove `Send + Sync + 'static` super trait bound on `GossipService`. It
is not required by `GossipService` nor its `impl`s.

* Bump version to knock the -dev

* Update lock

* Bump Substrate and some fixes

* Bump runtime

* version bump

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

* 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...