This reverts commit 583b0552.

* srml-contracts: Rename ext_scratch_copy to ext_scratch_read.

This is to disambiguate from the next ext_scratch_write function.

* Remove unnecessary OutputBuf and EmptyOutputBuf.

* Replace VmExecError with a result type of custom structs.

* Do not drop the scratch buffer on traps and regular returns.

This just reduces the number of allocations required during nested
contract calls and instantiations.

* Semantics for returning a status code and data from contract calls.

* Remove CallReceipt and InstantiateReceipt.

With forthcoming changes to return data from instantiate calls, the two
types of receipts become very similar to each other and to
ExecReturnValue. Instead, replace them with ExecReturnValue and
a regular 2-tuple in the case of instantiation.

* Modify contract function signatures to allow returning status codes.

* Introduce ext_sandbox_write runtime function.

* Test all the things.

* Bump node runtime spec version.

* Style fixes.

André Silva authored Aug 12, 2019 and asynchronous rob committed Aug 12, 2019

* node: exit on GRANDPA voter or BABE authoring error

* node: exit process with non-zero return code when service fails

* service: rename infallible task to essential task

* service: revert field name changes

* core: fix service testnet

* Refactor `parse_and_execute`

Adds a new function named `parse_and_prepare`, which prepares the environment and parses the command.
Contrary to `parse_and_execute`, `parse_and_prepare` returns a struct that permis the user to execute the command, as opposed to execute it itself.

`parse_and_execute` has been modified to use `parse_and_prepare` internally.

* Embed dispatch functions directly into run()

After the previous commit, we now have a lot of functions whose only one is to call other functions. And these other functions are called only from one location.
Let's merge these two for clarity.

* Deprecate parse_and_execute and replace it in node and node-template

* Apply suggestions from code review

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

* Scale trait and move to u32 blocknumbers.

* Fixes

* Cleanups

* Update node/runtime/src/lib.rs

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

* Fix up some of the factory stuff.

* Update core/sr-primitives/src/traits.rs

Co-Authored-By: Shawn Tabrizi <[email protected]>

* Move Nonce/Index to u32 (#3361)

* Force a non-borked version of upstream crate

* Line lengths and runtime version bump

* Implement `is_validator` for offchain-workers

* Introduce `--no-validator` flag

* Don't run babe/grandpa/im-online when `--no-validator` is given

* Fixes compilation

* Bump spec version

* Improve error handling in executor

* Add missing extern function

* Revert making error public

* Remove `--no-validator` CLI

* Remove generic from sign()

* Remove mandatory RuntimeGenesis trait req

* Remove requirement from Configuration

* Relax trait bounds of core/cli

* Move method

* The config field is no longer public

* Remove Components from bounds of functions

* Implement DerefMut for LightComponents

* Implement Executor for Full/LightComponents

* Fix bad merge

* Fix forgotten config()

* Fix build

* Using child storage, (srml-support only), test failing .

* fix simple tests.

* Enumerable by requiring owned struct (previous form only allow
&'static).
Broken tests are from genesis init.

* implement for_child_keys_with_prefix

* indent

* clear_child_prefix fix.

* clear_child_prefix fix 2.

* fix for storage_impl, if/when allowing child and not child this could be
reverted.

* Fix lot of urlinked child genesis, still need to look upon actual
genesis srml module code.
Probably still a lot of broken code needing debugging.

* switch well_known_key to their associated module child trie.
Fix a genesis init (balance).
Complete some testing.
Comment some tests before using.

* fixing test runtime child keys

* latest commit fix broken genesis init

* fix system balances child name.

* Important fix: storage_root from test externalities need children (it is
already the case for ext).

* executive root with child calculation

* Avoid empty trie on test ext.

* Symetric removal of key for system.

* commenting changes related tests.

* Remove child module specifics.

* fix issues.

* fix some formatting

* fix bench and bump runtime

* Remove extend_storage_overlays, assimilate_storage do the same as is
proper considering srml macro.

* Fix warning for assimilate.

* Removing kill as they do not impact any test cases.

* Use tuple of storage map instead of two parameters. This changes the
behavior of decl_storage genesis build closure (breaking api).

* Do not use build storage before assimilate.

* fix error

* Update core/state-machine/src/backend.rs

* srml-contracts: Storage access micro-optimization.

* srml-contracts: Refactor runtime functions to reduce duplication.

* Bump node runtime impl version.

* Adds `author_rotateKeys` RPC

`author_rotateKeys` will rotate all session keys, store them into the
keystore and returns their encoded public keys as result. These encoded
public keys can be used directly to send the transaction to the chain.

* Review comments

* add post_dispatch

* Update traits.rs

* Update checked_extrinsic.rs

* Update traits.rs

* Update traits.rs

* fix build issue

* update runtime version

* fix test build issue

* Clean up CLI interface

- Removes `--validator` and `--grandpa-voter`
- Make `--alice` etc work without `--dev`

* Style fixes

* Include uncles

* Filter missing uncles

* Moved inherent registration to a new crate

* Ignore invalid inherent encoding

* Make `DefaultByte` implement `Send + Sync`

* Update runtime version.

* Derive CompactAs for Perbill/mill/U128

* Increment impl_version

* Add Call type to extensible transactions.

Cleanup some naming

* Merge Resource and BlockExhausted into just Exhausted

* Fix

* Another fix

* Call

* Some fixes

* Fix srml tests.

* Fix all tests.

* Refactor crypto so each application of it has its own type.

* Introduce new AuthorityProvider API into Aura

This will eventually allow for dynamic determination of authority
keys and avoid having to set them directly on CLI.

* Introduce authority determinator for Babe.

Experiment with modular consensus API.

* Work in progress to introduce KeyTypeId and avoid polluting API
with validator IDs

* Finish up drafting imonline

* Rework offchain workers API.

* Rework API implementation.

* Make it compile for wasm, simplify app_crypto.

* Fix compilation of im-online.

* Fix compilation of im-online.

* Fix more compilation errors.

* Make it compile.

* Fixing tests.

* Rewrite `keystore`

* Fix session tests

* Bring back `TryFrom`'s'

* Fix `srml-grandpa`

* Fix `srml-aura`

* Fix consensus babe

* More fixes

* Make service generate keys from dev_seed

* Build fixes

* Remove offchain tests

* More fixes and cleanups

* Fixes finality grandpa

* Fix `consensus-aura`

* Fix cli

* Fix `node-cli`

* Fix chain_spec builder

* Fix doc tests

* Add authority getter for grandpa.

* Test fix

* Fixes

* Make keystore accessible from the runtime

* Move app crypto to its own crate

* Update `Cargo.lock`

* Make the crypto stuff usable from the runtime

* Adds some runtime crypto tests

* Use last finalized block for grandpa authority

* Fix warning

* Adds `SessionKeys` runtime api

* Remove `FinalityPair` and `ConsensusPair`

* Minor governance tweaks to get it inline with docs.

* Make the governance be up to date with the docs.

* Build fixes.

* Generate the inital session keys

* Failing keystore is a hard error

* Make babe work again

* Fix grandpa

* Fix tests

* Disable `keystore` in consensus critical stuff

* Build fix.

* ImOnline supports multiple authorities at once.

* Update core/application-crypto/src/ed25519.rs

* Merge branch 'master' into gav-in-progress

* Remove unneeded code for now.

* Some `session` testing

* Support querying the public keys

* Cleanup offchain

* Remove warnings

* More cleanup

* Apply suggestions from code review

Co-Authored-By: Benjamin Kampmann <[email protected]>

* More cleanups

* JSONRPC API for setting keys.

Also, rename traits::KeyStore* -> traits::BareCryptoStore*

* Bad merge

* Fix integration tests

* Fix test build

* Test fix

* Fixes

* Warnings

* Another warning

* Bump version.

* Update to schnorrkel `0.8.0`

* Increase `spec_version`

* Bump schnorrkel to 0.8.3 (#3283)

* Schnorrkel 0.8.1 (builds on bkchr upgrade branch)

* Add tests for known hard/soft derivation values

* Bump all schnorrkel versions

* Flatten for easier inspection

* 0.8.2

* 0.8.3

* Update subkey/Cargo.toml

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

* Update `Cargo.lock`

* 0.8.4

* Fix cargo lock file.

* Adding an error message for `NotMarkedSchnorrkel` as that was missing.
Also fixing a typo, strage -> stage.

* WIP: update codec

* WIP

* compiling

* WIP

* rename parity-scale-codec to codec

* WIP

* fix

* remove old comments

* use published crates

* fix expected error msg

* bump version

* fmt and fix

* remove old comment

* fix wrong decoding impl

* implement encode like for structures

* undo removal of old pending changes

* trailingzeroinput

* Apply suggestions from code review

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

* update codec

* fmt

* version is 1.0.0

* show more error

* fmt

* Adjust documentation.

* Bump impl_version.

* Update srml/contracts/src/wasm/runtime.rs

Co-Authored-By: Hero Bird <[email protected]>

* Remove incorrect doc.

* node: use BABE predigest data to find authorship

* node: bump spec_version

* babe: use u32 for authority index

* switch to simple codec, trie broken for now

* Actualy use trie_root_noext

* align some hash, failing test on EMCH comment

* Fix trie code over layout instead of hash, revert legacy code for legacy
mainnet ??

* stub behind LayOut

* fix no_std

* temp solution for legacy trie behind feature legacy-key in various crate

* use remote project

* rc client db need prefix

* update trie deps

* bum spec runtime version

* Removing legacy as default.

* Switch mode to non legacy.

* bump runtime version

* Remove legacy trie compatibility features.

* fix warning

* bump version

* change hash on new test.

* Move dependency (#11 trie PR) patched to a parity repo.
Bench reverted to correct hasher.
Some renaming and doc improvments.

* ChildBitmap renaming to BitMap.

* Renaming of LayOut to Layout.

* formatting.

* Removing abreviation such as _ix nb_ or bm.

* Update deps and apply renaming 'Buff' -> 'Buffer'.

* Align to latest trie crates naming changes.

* Update trie dependency.

* Update trie dependency.

* change block_import test hash

* update trie deps (trie use new scale codec but it does not seems to be
an issue).

* update to use latest trie version (no mgmt of multiple radix).

* tabify

* Restoring test to 10 000.

* Use published crate, trie bench is currently down until publishing
(require another pr to update version).

* Update trie-bench.

* Check the genesis hash in transactions regardless of era.

* Fix check-fees, too.

* Undo.

* Subkey supports new signing.

* Remove unneeded type param.

* Bump tx version

* Build.

* Another build fix

* Build again

* Cleanup

* Another fix.

* Fix

* Fixes

* 6 second blocks.

* Fixes

* Build fix

* Fix

* Fix.

* 6 second blocks.

* Version bump

* Add test for slashable_balance()

* make staking add_reward_points_to_validator public

* make storage private

* bump version

* Switch to deferred actions

* Make restore_to a deferred action.

* Bump version.

* Review fixes.

This reverts commit a5fa1ddd.

* Update schnorrkel to `0.7.0`

* Apply suggestions from code review

Co-Authored-By: DemiMarie-parity <[email protected]>

* Increase `spec_version`

* node: update BABE authority ids in staging testnet config

* node: update flaming fir chain spec

* babe: don't execute median algorithm

* babe: checked sub in median calculation

* node: bump impl_version to make ci happy

* babe: remove forbid dead_code

Partly due to interaction with #3191.

* srml-contracts: Forbid remaining uses of float types.

* Bump node runtime impl version.

* srml: babe: add expected block time constant

* srml: babe: expose epoch duration constant

* node: bump spec_version

* core: don't use moment type in test-runtime

* babe: add docs regarding c parameter

* Allow creating a ChainSpec from a Vec<u8>

* Line widths

* Embedded -> Binary

* Remove from_embedded

* CLI execution flag for import-blocks and factory.

* Fix minimum_balance bug with CLI factory.