* removed obsolete check that is superseded by the unblock checks below

* if messages race transaction submit has failed, do not restart loop. Instead, wait for new best nonces from target node and retry selection. That's because submit has probably failed because other relayer has submitted same nonces

* reset nonces_to_submit and nonces_submitted if at least one of selected/submitted nonces is already at target

* removed extra check

* submit lane unblock transactions from relay

* moved body of select_nonces_to_deliver to the separate select_race_action

* extracted latest_confirmed_nonce_at_source method

* return Option<RaceAction> from select_race_action

* make required_source_header_at_target async

* remove extra argument from required_source_header_at_target

* small fixes in tests

* Revert "return Option<RaceAction> from select_race_action"

This reverts commit 9f13dbfa.

* implement required_source_header_at_target using what-if approach

* fix compilation

* fmt

* clippy

* moved some code to the can_submit_transaction_with

* fix invalid batch transaction

* RaceState is now trait

* clippy

* + failing test: previous_nonces_are_selected_if_reorg_happens_at_target_chain

* maybe fix for the issue?

* another fix

* previous_nonces_are_selected_if_reorg_happens_at_target_chain for MessageDeliveryStrategy

* remove commented code

* spelling

* `select_nonces_to_deliver` is no longer `&mut self`

* reset submitted nonces on lost transaction

* clippy

* fmt

* Alter gitlab.

* Use substrate's rustfmt.toml

* cargo +nightly fmt --all

* Fix spellcheck.

* cargo +nightly fmt --all

* format.

* Fix spellcheck and fmt

* fmt?

* Fix spellcheck

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

* fix(spellcheck): test of fixing

* fix(hunspell): improved many typos etc.

* fix(hunspell): all errors solved

* fix(hunspell): extended scope of files - the build should fail

* Return error code.

* Fix spelling, sort dictionary.

* fix(hunspell): added fix to gitlabs check

* fix(typo): one typo and test of verification on github

* fix(typo): one typo

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

* use plain source_queue view when selecting nonces for delivery

* Revert "use plain source_queue view when selecting nonces for delivery"

This reverts commit f1fdc3fa.

* Revert "Revert "use plain source_queue view when selecting nonces for delivery""

This reverts commit ccefa5ec.

* clippy

* fmt

* introduce relayer mode enum

* removed MaximalReward mode

* TODO

* Saturating -> SaturatingAdd

* ref issue in TODOs

* Update relays/messages/src/message_race_delivery.rs

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

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

* CI: do not trust this CI 1

* CI: don't want to trigger unneded statuses

* CI: debug 1

* CI: new CI

* CI: temp allow failure

* CI: exclude paths

* doc: check if docs won't trigger pipelines

* doc: check hybrid changes pipeline

* doc: do not push excluded files together with others

* CI: undebug fmt

* CI: better deny

* CI: fix deny and spellcheck

* CI: global backtrace

* CI: deny config

* CI: publishing

* Dockerfile: metadata fix [skip ci]

* CI: revert me

* CI: debug bash

* CI: mv ci.Dockerfile; fix buildah bug

* CI: fix artifact name

* Dockerfile: fix context

* CI: separate deny check licenses

* CI: when to run

* CI: unneded stuff in these Dockerfiles

* CI: merged test-refs and build-refs

* CI: test-build optimizations

* CI: changes, web, scheduled pipelines now work as intended

* CI: use tested production CI image

* CI: substitute GHA

* Fix clippy.

* Moar clippy fixes.
...

* complex headers+messages relay

* post-merge fix

* fix + test issue with on-demand not starting

* Update copyright date to 2021

* Bump date in license header template

* Remove chains.

* Move relay clients.

* Flatten generic.

* Fix fmt.

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

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

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

* Nest some crates.

* Alter command execution to make it easier to add new bridges.

* Rename sub-dirs.

* cargo fmt --all

* Address clippy.

* Update relays/substrate/src/rialto_millau/cli.rs

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

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

* keep multiple latest confirmed nonces at source in messages relay

* post-merge fix

* fix max weight in relay + logging

* removed duplicate info

* limit messages size in delivery transaction

* docs

* limit maximal number of unconfirmed messages at inbound lane

* unrewarded_relayer_entries API

* change relay to support max unrewarded relayer entries

* Update modules/message-lane/src/inbound_lane.rs

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

* Update relays/messages-relay/src/message_lane_loop.rs

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

* removed pub

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

* fixed missing else

* really wake up when retry timeout is completed

* do not query weights if target nonce is unknown

* fix compilation

* use best block state to craft message relay transactions

* removed obsolete TODO

* Update relays/messages-relay/src/message_race_loop.rs

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

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

* limit messages in the batch by weight/count

* fixed components compilation

* reverted obsolete parts of #469

* implement generated_messages_weights

* actually use computed weight in message proof

* fmt and clippy

* fixed TODO

* clippy

* Update relays/messages-relay/src/message_race_loop.rs

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

* add issue reference

* add assert message

* grumbles

* fmt

* reexport weight from bp-message-lane

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

* print message race progress

* fmt

* Update relays/messages-relay/src/message_race_loop.rs

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

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

* Millau messages -> Rialto relay

* prepare for custom race strategy of delivery race

* custom strategy for delivery race

* update TODOs

* add reference to issue 457

* impl reconnect

* clippy

* fix check in test

* fmt

* removed obsolete TODO

* fixed another TODOs

* fmt

* use MAX_UNCONFIRMED_MESSAGES_AT_INBOUND_LANE const from primitives

* Update relays/messages-relay/src/message_lane_loop.rs

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

* added SubstrateMessagesProof typedef

* fix test

* removed comment

* additional_proof_required -> ProofParameters

* typo

* multiline literal

* clippy

* fix typo

* and_then -> await

* update_source_latest_confirmed_nonce

* Update relays/messages-relay/src/message_race_delivery.rs

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

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