greedy relayer don't need message dispatch to be prepaid if dispatch is supposed to be paid at the target chain (#1016)

* Allow Root to assume SourceAccount.

* fmt code

* relay dispatch result flags back to the source chain

* OnMessagesDelivered callback

* add lane id to OnDeliveredMessages callback

* fix benchmarks && upate weights

* clippy

* clippy

* clipy another try

* OnMessagesDelivered -> OnDeliveryConfirmed

* Update primitives/messages/src/source_chain.rs

Co-authored-by: Tomasz Drwięga <[email protected]>

Co-authored-by: Tomasz Drwięga <[email protected]>

* pay dispatch fee at target chain

* refund unspent dispatch weight to messages relayer

* test that transfer actually happens

* pay-at-target-cchain benchmarks + fix previous benchmarks (invalid signature)

* include/exclude pay-dispatch-fee weight from delivery_and_dispatch_fee/delivery tx cost

* remvoe some redundant traces

* enum DispatchFeePayment {}

* typo

* update docs

* (revert removal of valid check)

* Update modules/messages/src/benchmarking.rs

Co-authored-by: Tomasz Drwięga <[email protected]>

* Update modules/messages/src/benchmarking.rs

Co-authored-by: Tomasz Drwięga <[email protected]>

* Update modules/messages/src/benchmarking.rs

Co-authored-by: Tomasz Drwięga <[email protected]>

* Update modules/messages/src/benchmarking.rs

Co-authored-by: Tomasz Drwięga <[email protected]>

Co-authored-by: Tomasz Drwięga <[email protected]>
Co-authored-by: Tomasz Drwięga <[email protected]>

* relayer balance guards in Rococo <> Wococo

* removed printlns

* update constant

* update constant

* start balance guard for Wococo -> Rococo

* Update relays/bin-substrate/src/chains/wococo_headers_to_rococo.rs

Co-authored-by: Hernando Castano <[email protected]>

* Update relays/bin-substrate/src/chains/wococo_headers_to_rococo.rs

Co-authored-by: Hernando Castano <[email protected]>
Co-authored-by: Tomasz Drwięga <[email protected]>
Co-authored-by: Tomasz Drwięga <[email protected]>

Co-authored-by: Tomasz Drwięga <[email protected]>

* Bump Substrate to commit `0495ead4`

* Derive MaxEncodedLen for MillauHash

* Add new config params to Balances pallet

* Update Millau and Rialto service files

* Add new Config items to mock runtime

* Bump Substrate to `37bb3ae7`

* Update Aura worker params

* updated weight formula for submit_finality_proof

* remove common prefix traces

* update docs

* single benchmark

* Re-generate weights.

* Update delivery transaction limits

Co-authored-by: Tomasz Drwięga <[email protected]>
Co-authored-by: Hernando Castano <[email protected]>

* flag for rejecting all outbound messages

* update weights

* Revert "update weights"

This reverts commit 992b866e.

* Revert "flag for rejecting all outbound messages"

This reverts commit d094964b

.

* OperatingMode

* Update modules/messages/src/lib.rs

Co-authored-by: Hernando Castano <[email protected]>

* Poke CI

* RustFmt

Co-authored-by: Hernando Castano <[email protected]>
Co-authored-by: Hernando Castano <[email protected]>

* custom justification verification

* is_ancestor -> ensure_descendant

* PrecommitIsNotCommitDescendant

* Update primitives/header-chain/src/justification.rs

Co-authored-by: Hernando Castano <[email protected]>

Co-authored-by: Hernando Castano <[email protected]>

* Bump Rococo's spec_version

* Use dev node for Rococo helper script

* Add helper scripts for relaying Rococo<>Wococo headers

* Change Wococo<>Rococo scripts to use Alice for initialization

* Add Wococo node helper script

* message dispatch support multiple instances

* Move pallet-bridge-dispatch types to primitives

* remove pallet-bridge-dispatch dependency

* Update cargo.lock (remove pallet-bridge-dispatch in substrate-relay)

* remove extra dependencies

* Add Wococo primitives crate

* Add more Wococo boilerplate code

* Add CLI support for initializing the Wococo<>Rococo bridge

* Add support for relaying headers between Rococo and Wococo

* Fix test

* RustFmt

* Fix compilation issues related to enum naming

* Bump Rococo `spec_version`

* Remove stray Westend references

* Remove scripts for Westend<>Rococo header sync

* Remove Westend<>Rococo header sync code

* Remove Westend<>Rococo init bridge CLI option

* Modify Westend mock call to be placeholder

* Fix call encoding test

* Bump Rococo and Westend RuntimeVersions

* Add helper scripts for running Rococo<>Westend header sync

* Remove extra space

Co-authored-by: Tomasz Drwięga <[email protected]>

Co-authored-by: Tomasz Drwięga <[email protected]>

* Add modules for Rococo<>Westend header sync

* Use mock Westend and Rococo finaltiy tx calls

* Add Westend<>Rococo variants to `init_bridge`

* Add Westend<>Rococo variants to `relay_headers`

* Simplify the Rococo and Westend signing params

* Add `submit_finality_proof` mock Call variant

* Add note to more closely match `initialize` Call variant

* Accidentally committed `cargo-expand`ed code 🤦



* Add `initialize` Call variant to Rococo mock

* Fix call enums.

* Add explainatory comment.

* clippy.

* Add issue number.

* De-duplicate metrics customisation.

* Add comments to Rococo/Westend runtimes.

* Add scale-encoding compatibility test.

* Fix tests.

* Clippy.

Co-authored-by: Tomasz Drwięga <[email protected]>

* Support moar validators.

* Update weights script.

* Use correct type for benchmarking accounts

* Use package name instead of manifest path

Co-authored-by: Hernando Castano <[email protected]>

* Copy-Pasta Call code from mock Rococo to mock Westend runtime

* Update Westend client to include signing and call related code

* Add missing part of license header

* Move `account_info_storage_key` to `polkadot-core` crate

* Bump Substrate

* Change usage of "Module" to "Pallet"

Related Substrate PR: https://github.com/paritytech/substrate/pull/8372

* Add `OnSetCode` config param

Related Substrate PR: https://github.com/paritytech/substrate/pull/8496

* Update Aura Slot duration time type

Related Substrate PR: https://github.com/paritytech/substrate/pull/8386

* Add `OnSetCode` to mock runtimes

* Add support for multiple justifications

Related Substrate PR: https://github.com/paritytech/substrate/pull/7640

* Use updated justification type in more places

* Make GenesisConfig type non-optional

Related Substrate PR: https://github.com/paritytech/substrate/pull/8275

* Update service to use updated telemetry

Related Substrate PR: https://github.com/paritytech/substrate/pull/8143

* Appease Clippy

* administrative metrics

* fmt

* fix compilation

* fix compilation again

* and another one

* remove GenericLoopMetrics

* chttp -> isahc

* remove redundant marker

* not about price metrics

* fmt

* Update copyright date to 2021

* Bump date in license header template

* Use more accurate weight calculation in declared weight

* Remove session length and validator set size config constants

* Remove config params from mock

* Allow specifying total number of votes-ancestries per justification

* Change limits used during benchmarking

* Regenerate weights

* Use simplified weight annotation

* Remove comment

* Address leftover TODO

* Prevent possible divide by zero errors

* Use correct argument order in weight declaration

* Add benchmarking skeleton

* Allow runtime to indicate concrete header type for benches

* Set up skeleton for benchmark tests

* Play around with mutating bench header

* Create a working test for benchmarking

* Add benches related to enacting authority set changes

* Add bench for checking effect of prec-commits/vote ancestries

* Use new `no_std` test utils in benchmarks

* Support pallet instances in benchmarking

* Use correct benchmarking instance macro

* Add instance to runtime benchmark helper impl

* Start using new justification creation API

* Allow mock header's number to be specified

* Set up benches with correct fork/depth parameters

* Use new pallet name during runtime bench setup

* Use correct `set_id` in tests

* Limit number of forks as workaround to get tests passing

* Use number of authorities which matches number of forks

* Make sure test post-conditions are checked properly

* Only read `Current...

* Stop passing raw encoded justifications to pallet API

By having the API accept a struct-ified justification we are able to
better utilize the justifications fields for weight calculations.

* Update relayer code to use decoded justifications

* Add justification to `expect()` statement

* Fix some imports

* Make justification wrapper contain decoded justification

* Rename some fields

* Get rid of warnings

* Appease Clippy

* Only decode justification once at init time

* Remove unnecessary method

* Remove justification wrapper

This became kinda unnecessary since we could implement the FinalityProof
trait on GrandpaJustification directly.

* Start generalizing rialto-millau commands.

* cargo fmt --all

* Introduce generic balance.

* Unify message payloads.

* cargo fmt --all

* init - generic

* Attempt to unify send message.

* Start moving things around.

* cargo fmt --all

* Move init-bridge.

* cargo fmt --all

* Improve UX of bridge argument.

* Fix clippy.

* Fix docs and scripts.

* Add docs.

* Apply suggestions from code review

Co-authored-by: Hernando Castano <[email protected]>

* Fix copyright.

* Add issue numbers.

* More todos.

* Update comments.

Co-authored-by: Hernando Castano <[email protected]>

* Implement fake rococo runtime.

* Generate correct storage key.

* cargo fmt --all

* Move client-rococo.

* Satisfy clippy.

* Apply suggestions from code review

Co-authored-by: Hernando Castano <[email protected]>

* Address review comments.

* Clippy again.

Co-authored-by: Hernando Castano <[email protected]>

* Allow creation of authority lists with any number of authorities

* Move keyring helpers into their own module

* Add helper for generating list of test accounts

* Fix import names in tests

* Rename Keyring trait to Signer

* Get list of accounts in a more functional way

* Clarify meaning of `test_keyring` return type

* Use concrete test account type instead of generics

* Make sure voter set contains all authorities which signed off on pre-commits

* Rename `pallet-finality-verifier` to `pallet-bridge-grandpa`

* Missed some CamelCase ones

* Update logging target in GRANDPA pallet

* Rename `pallet-bridge-call-dispatch` to `pallet-bridge-dispatch`

* Rename the dispatch pallet folder

* Update logging target in Dispatch pallet

* Missed a couple

* Format the repo

* Stop listing individual pallets in Compose logs

* Use correct pallet name in module doc comments

* Add `pallet-bridge-dispatch` to README project layout

* Sort crate names in TOML files

* Rename `pallet-bridge-grandpa` runtime Call alias

* Remove chains.

* Move relay clients.

* Flatten generic.

* Fix fmt.

* Add way to create tunable GRANDPA justifications

* Use new function in tests

* Allow multiple authorities on a single fork

* Only store pre-commit targets instead of full ancestry chains

* Rename precommit_header to be more generic

* Push new digest item instead of overriding entire digest

* Ensure that we generate chains with non-zero length

* Extract justification creation parameters into struct

* Appease Clippy

* use runtime:: prefix for message-lane pallet traces

* renamed message-lane (module and primitives) folder into messages

* replace "message lane" with "messages" where appropriate