* adds a new overload of queryPastEvents allowing to query past events based on timestamp in the past
* adds state restoration to validator
* refactors a bit to get the tests back to work
* replaces deprecated generic methods from Market with methods for specific event types
* Refactors binary search
* adds market tests for querying past SlotFilled events and binary search
* Takes into account that <<earliest>> block available is not necessarily the genesis block
* Adds more logging and makes testing earliest block boundary more reliable
* adds validation tests for historical state restoration
* adds mockprovider to simplify and improve testing of the edge conditions
* adds slot reservation to the new tests after rebasing
* adds validation groups and group index in logs of validator
* adds integration test with two validators
* adds comment on how to enable logging in integration test executable itself
* testIntegration: makes list is running nodes injected and available in the body of the test
* validation: adds integration test for historical state
* adds more logging to validator
* integration test: validator only looks 30 days back for historical state
* adds logging of the slotState when removing slots during validation
* review and refactor validator integration tests
* adds validation to the set of integration tests
* Fixes mistyped name of the mock provider module in testMarket
* Fixes a typo in the name of the validation suite in integration tests
* Makes validation unit test a bit easier to follow
* better use of logScopes to reduce duplication
* improves timing and clarifies the test conditions
* uses http as default RPC provider for nodes running in integration tests as a workaround for dropped subscriptions
* simplifies the validation integration tests by waiting for failed request instead of tracking slots
* adds config option allowing selectively to set different provider url
* Brings back the default settings for RPC provider in integration tests
* use http RPC provider for clients in validation integration tests
* fine-tune the tests
* Makes validator integration test more robust - adds extra tracking
* brings tracking of marketplace event back to validator integration test
* refactors integration tests
* deletes tmp file
* adds <<return>> after forcing integration test to fail preliminarily
* re-enables all integration tests and matrix
* stops debug output in CI
* allows to choose a different RPC provider for a given integration test suite
* fixes signature of <<getBlock>> method in mockProvider
* adds missing import which seem to be braking integration tests on windows
* makes sure that clients, SPs, and validators use the same provider url
* makes validator integration tests using http at 127.0.0.1:8545
* testvalidator: stop resubscribing as we are now using http polling as rpc provider
* applying review comments
* groups queryPastStorage overrides together (review comment)
* groups the historical validation tests into a sub suite
* removes the temporary extensions in marketplacesuite and multinodesuite allowing to specify provider url
* simplifies validation integration tests
* Removes debug logs when waiting for request to fail
* Renaming waitForRequestFailed => waitForRequestToFail
* renames blockNumberForBlocksAgo to pastBlockTag and makes it private
* removes redundant debugging logs
* refines logging in validation
* removes dev logging from mockmarket
* improves exception handling in provider helper procs and prepares for extraction to a separate module
* Uses chronos instead of std/times for Duration
* extracts provider and binary search helpers to a separate module
* removes redundant log entry params from validator
* unifies the notation to consistently use method call syntax
* reuses ProviderError from nim-ethers in the provider extension
* clarifies the comment in multinodesuite
* uses == operator to check the predefined tags and raises exception when `BlockTag.pending` is requested.
* when waiting for request to fail, we break on any request state that is not Started
* removes tests that were moved to testProvider from testMarket
* extracts tests that use MockProvider to a separate async suite
* improves performance of the historical state restoration
* removing redundant log messages in validator (groupIndex and groups)
* adds testProvider to testContracts group
* removes unused import in testMarket
* feat: repair is rewarded
* chore: update contracts repo
* feat: proving loop handles repair case
* test: assert repair state
* chore: update contracts repo
* fix: upon unknown state of repair go to error
* Use http subscriptions instead of websocket for tests
To work around this issue when subscriptions are
inactive for more than 5 minutes:
https://github.com/NomicFoundation/hardhat/issues/2053
Use 100 millisecond polling; default polling interval
of 4 seconds is too close to the 5 second timeout for
`check eventually`.
* use .confirm(1) instead of confirm(0)
confirm(0) doesn't wait at all, confirm(1) waits
for the transaction to be mined
* speed up partial payout integration test
* update nim-ethers to version 0.10.0
includes fixes for http polling and .confirm()
* fix timing of marketplace tests
allow for a bit more time to withdraw funds
* use .confirm(1) in marketplace tests
to ensure that the transaction has been processed
before continuing with the test
* fix timing issue in validation unit test
* fix proof integration test
there were two logic errors in this test:
- a slot is freed anyway at the end of the contract
- when starting the request takes a long time, the
first slot can already be freed because there were
too many missing proofs
* fix intermittent error in contract tests
currentTime() doesn't always correctly reflect
the time of the next transaction
* reduce number of slots in integration test
otherwise the windows runner in the CI won't
be able to start the request before it expires
* fix timing in purchasing test
allow for a bit more time for a request to
be submitted
* fix timing of request submission in test
windows ci is so slow, it can take up to 40 seconds
just to submit a storage request to hardhat
* increase proof period to 90 seconds
* adjust timing of integration tests
reason: with the increased period length of 90 seconds, it
can take longer to wait for a stable challenge at the
beginning of a period.
* increase CI timeout to 2 hours
* Fix slow builds on windows
apparently it takes windows 2-3 seconds to
resolve "localhost" to 127.0.0.1 for every
json-rpc connection that we make 🤦
* chore: bump dependencies, including nim-ethers with chronos v4 support
Bumps the following dependencies:
- nim-ethers to commit 507ac6a4cc71cec9be7693fa393db4a49b52baf9 which contains a pinned nim-eth version. This is to be replaced by a versioned library, so it will be pinned to a particular version. There is a crucial fix in this version of ethers that fixes nonce management which is causing issues in the Codex testnet.
- nim-json-rpc to v0.4.4
- nim-json-serialization to v0.2.8
- nim-serde to v1.2.2
- nim-serialization to v0.2.4
Currently, one of the integration tests is failing.
* fix integration test
- When a state's run was cancelled, it was being caught as an error due to catching all CatchableErrors. This caused a state transition to SaleErrored, however cancellation of run was not actually an error. Handling this correctly fixed the issue.
- Stopping of the clock was moved to after `HostInteractions` (sales) which avoided an assertion around getting time when the clock was not started.
* bump ethers to include nonce fix and filter not found fix
* bump ethers: fixes missing symbol not exported in ethers
* Fix cirdl test imports/exports
* Debugging in ci
* Handle CancelledErrors for state.run in one place only
* Rename `config` to `configuration`
There was a symbol clash preventing compilation and it was easiest to rename `config` to `configuration` in the contracts. Not even remotely ideal, but it was the only way.
* bump ethers to latest
Prevents an issue were `JsonNode.items` symbol could not be found
* More changes to support `config` > `configuration`
* cleanup
* testing to see if this fixes failure in ci
* bumps contracts
- ensures slot is free before allowing reservation
- renames config to configuration to avoid symbol clash
* Avoid cancelling states when slot is filled
* improve logging
Improves logging for situations where a Sale should be ignored instead of being considered an error, including when reservation is not allowed and when a slot was filled by another host.
* remove onSlotFilled unit tests from states
* convert EthersError to MarketError
* change `canReserveSlot` and `reserveSlot` parameters
Parameters for `canReserveSlot` and `reserveSlot` were changed from `SlotId` to `RequestId` and `UInt256 slotIndex`.
* Add SaleSlotReserving
Adds a new state, SaleSlotReserving, that attempts to reserve a slot before downloading.
If the slot cannot be reserved, the state moves to SaleIgnored.
On error, the state moves to SaleErrored.
SaleIgnored is also updated to pass in `reprocessSlot` and `returnBytes`, controlling the behaviour in the Sales module after the slot is ignored. This is because previously it was assumed that SaleIgnored was only reached when there was no Availability. This is no longer the case, since SaleIgnored can now be reached when a slot cannot be reserved.
* Update SalePreparing
Specify `reprocessSlot` and `returnBytes` when moving to `SaleIgnored` from `SalePreparing`.
Update tests to include test for a raised CatchableError.
* Fix unit test
* Modify `canReserveSlot` and `reverseSlot` params after rebase
* Update MockMarket with new `canReserveSlot` and `reserveSlot` params
* fix after rebase
also bump codex-contracts-eth to master
* feat(slot-reservations): Support reserving slots
Closes#898.
Wire up reserveSlot and canReserveSlot contract calls, but don't call them
* Remove return value from `reserveSlot`
* convert EthersError to MarketError
* Move convertEthersError to reserveSlot
* bump codex-contracts-eth after rebase
* change `canReserveSlot` and `reserveSlot` parameters
Parameters for `canReserveSlot` and `reserveSlot` were changed from `SlotId` to `RequestId` and `UInt256 slotIndex`.
* bump codex-contracts-eth after rebase
* bump codex-contracts-eth to master after codex-contracts-eth/pull/177 merged
* All sort of tweaks
* docs: availability's minPrice doc
* Revert changes to the two node test example
* Change default EC params in REST API
Change default EC params in REST API to 3 nodes and 1 tolerance.
Adjust integration tests to honour these settings.
---------
Co-authored-by: Eric <5089238+emizzle@users.noreply.github.com>
* feat: add `--payout-address`
Allows SPs to be paid out to a separate address, keeping their profits secure.
Supports https://github.com/codex-storage/codex-contracts-eth/pull/144 in the nim-codex client.
* Remove optional payoutAddress
Change --payout-address so that it is no longer optional. There is no longer an overload in `Marketplace.sol` for `fillSlot` accepting no `payoutAddress`.
* Update integration tests to include --payout-address
* move payoutAddress from fillSlot to freeSlot
* Update integration tests to use required payoutAddress
- to make payoutAddress required, the integration tests needed to avoid building the cli params until just before starting the node, otherwise if cli params were added ad-hoc, there would be an error after a non-required parameter was added before a required parameter.
* support client payout address
- withdrawFunds requires a withdrawAddress parameter, directs payouts for withdrawing of client funds (for a cancelled request) to go to that address.
* fix integration test
adds --payout-address to validators
* refactor: support withdrawFunds and freeSlot optional parameters
- withdrawFunds has an optional parameter for withdrawRecipient
- freeSlot has optional parameters for rewardRecipient and collateralRecipient
- change --payout-address to --reward-recipient to match contract signature naming
* Revert "Update integration tests to include --payout-address"
This reverts commit 8f9535cf35b0f2b183ac4013a7ed11b246486964.
There are some valid improvements to the integration tests, but they can be handled in a separate PR.
* small fix
* bump contracts to fix marketplace spec
* bump codex-contracts-eth, now rebased on master
* bump codex-contracts-eth
now that feat/reward-address has been merged to master
* clean up, comments
* refactor(marketplace): move marketplace events to the Market abstraction
Move marketplace contract events to the Market abstraction so the types can be shared across all modules that call the Market abstraction.
* Remove unneeded conversion
* Switch to generic implementation of event querying
* change parent type to MarketplaceEvent
* integration: move REST API tests into their own module
* integration: move upload and download tests into their own module
* integration: move purchasing tests into their own module
* integration: move marketplace tests to the right module
* integration: mine a block *after* starting nodes
To ensure that tests involving multiple nodes do
not start with out-of-sync clocks
* Fix: do not swallow CancellationErrors
* integration: avoid underflow in UInt256
* network: remove unnecessary error handling
No Exceptions can occur, only Defects, because everything
is asyncSpawned.
Co-authored-by: Dmitriy Ryajov <dryajov@gmail.com>
* network: do not raise in asyncSpawned proc
Co-authored-by: Dmitriy Ryajov <dryajov@gmail.com>
---------
Co-authored-by: Dmitriy Ryajov <dryajov@gmail.com>
* fix: make sure requestStorage is mined
* fix: correct place to plug confirm
* test: fixing contracts tests
* feat: one confirmation for all transactions
* fix: don't wait for confirmations only mined block
* Add MarketError
Add MarketError and convert all EthersErrors (ProviderError, SignerError) to MarketError
* Include token contract call in conversion of ethers error
* use a real verifying contract address
* contracts: cleanup
* marketplacesuite: set correct circuit files, interval mining
* Proofs tests updates
Contains changes to get the proving tests working reliably.
* integration: use correct circom artifacts for creating proofs
* integration: cleanup
---------
Co-authored-by: Dmitriy Ryajov <dryajov@gmail.com>
Co-authored-by: Eric <5089238+emizzle@users.noreply.github.com>
* Update codex-contracts-eth
* contracts: update G2Point definition
* integration: disable automatic advancing of time
reason: makes reasoning about timing in tests harder,
because the period is set to 60 seconds in the
marketplace configuration, but this code switches to
a new period every 500 milliseconds
* integration: fix parameters of marketplace payouts test
* integration: update test settings
* integration: fix typo
* integration: workaround for hardhat issue
Subscriptions expire after 5 minutes when using
websockets. Use http and polling instead.
* integration: remove origDatasetSizeInBlocks
* integration: fix proof parameters for test
* integration: do not log output by default
* integration: fix failure rate in test
* integration: fix warning
* integration: include clock in logs
* integration: allow for more periods
5 periods was cutting it close, if we get too much
pointer downtime, then the test would fail
* market: use `pending` blocktag when querying onchain state
* clock: use wall clock in integration tests
reason: we'll need to wait for the next period in
integration tests, and we can't do that if the
time doesn't advance
* clock: remove unused field
* integration: use pending block time to get current time
* clock: fix on-chain clock for hardhat
Only use 'latest' block for updates
Only update the first time you see a block
* integration: do not start tests with a very outdated block
* integration: allow for longer expiry period
* Smart contracts update: Groth16Proof instead of bytes
* Use dummy verifier for now, until we can create ZK proofs
* Fix tests: submit proof only when slot is filled
* Submit dummy proofs for now
* More detailed log when proof submission failed
* Use dummy verifier for integration tests
For now at least
* Fix mistake in blanket renaming to ethProvider
* Update to latest codex-contracts-eth
* feat: zkey-hash from chain
* Fix zkeyHash
---------
Co-authored-by: Adam Uhlíř <adam@uhlir.dev>
* implement a logging proxy
The logging proxy:
- prevents the need to import chronicles (as well as export except toJson),
- prevents the need to override `writeValue` or use or import nim-json-seralization elsewhere in the codebase, allowing for sole use of utils/json for de/serialization,
- and handles json formatting correctly in chronicles json sinks
* Rename logging -> logutils to avoid ambiguity with common names
* clean up
* add setProperty for JsonRecord, remove nim-json-serialization conflict
* Allow specifying textlines and json format separately
Not specifying a LogFormat will apply the formatting to both textlines and json sinks.
Specifying a LogFormat will apply the formatting to only that sink.
* remove unneeded usages of std/json
We only need to import utils/json instead of std/json
* move serialization from rest/json to utils/json so it can be shared
* fix NoColors ambiguity
Was causing unit tests to fail on Windows.
* Remove nre usage to fix Windows error
Windows was erroring with `could not load: pcre64.dll`. Instead of fixing that error, remove the pcre usage :)
* Add logutils module doc
* Shorten logutils.formatIt for `NBytes`
Both json and textlines formatIt were not needed, and could be combined into one formatIt
* remove debug integration test config
debug output and logformat of json for integration test logs
* Use ## module doc to support docgen
* bump nim-poseidon2 to export fromBytes
Before the changes in this branch, fromBytes was likely being resolved by nim-stew, or other dependency. With the changes in this branch, that dependency was removed and fromBytes could no longer be resolved. By exporting fromBytes from nim-poseidon, the correct resolution is now happening.
* fixes to get compiling after rebasing master
* Add support for Result types being logged using formatIt
* implement a logging proxy
The logging proxy:
- prevents the need to import chronicles (as well as export except toJson),
- prevents the need to override `writeValue` or use or import nim-json-seralization elsewhere in the codebase, allowing for sole use of utils/json for de/serialization,
- and handles json formatting correctly in chronicles json sinks
* Rename logging -> logutils to avoid ambiguity with common names
* clean up
* add setProperty for JsonRecord, remove nim-json-serialization conflict
* Allow specifying textlines and json format separately
Not specifying a LogFormat will apply the formatting to both textlines and json sinks.
Specifying a LogFormat will apply the formatting to only that sink.
* remove unneeded usages of std/json
We only need to import utils/json instead of std/json
* move serialization from rest/json to utils/json so it can be shared
* fix NoColors ambiguity
Was causing unit tests to fail on Windows.
* Remove nre usage to fix Windows error
Windows was erroring with `could not load: pcre64.dll`. Instead of fixing that error, remove the pcre usage :)
* Add logutils module doc
* Shorten logutils.formatIt for `NBytes`
Both json and textlines formatIt were not needed, and could be combined into one formatIt
* remove debug integration test config
debug output and logformat of json for integration test logs
* Use ## module doc to support docgen
* Workaround for Hardhat timestamp bug
Likely due to a Hardhat bug in which the callbacks for subscription events are called and awaited before updating its local understanding of the last block time, Hardhat will report a block time in the `newHeads` event that is generally 1 second before the time reported from `getLatestBlock.timestamp`. This was causing issues with the OnChainClock's offset and therefore the `now()` used by the `OnChainClock` would sometimes be off by a second (or more), causing tests to fail.
This commit introduce a `codex_use_hardhat` compilation flag, that when set, will always get the latest block timestamp from Hardhat via the `getLatestBlock.timestamp` RPC call for `OnChainClock.now` calls. Otherwise, the last block timestamp reported in the `newHeads` event will be used.
Update the docker dist tests compilation flag for simulated proof failures (it was not correct), and explicitly add the `codex_use_hardhat=false` for clarity.
* enable simulated proof failures for coverage
* comment out failing test on linux -- will be replaced
* bump codex contracts eth
* add back clock offset for non-hardhat cases
* bump codex-contracts-eth
increases pointer by 67 blocks each period increase
* Add `codex_use_hardhat` flag to coverage tests
* Add get active slot /slots/{slotId} to REST api, use utils/json
- Add endpoint /slots/{slotId} to get an active SalesAgent from the Sales module. Used in integration tests to test when a sale has reached a certain state. Those integration test changes will be included in a larger PR, coming later.
- Add OpenAPI changes for new endpoint and associated components
- Use utils/json instead of nim-json-serialization. Required exemption of imports from several packages that export nim-json-serialization by default.
* Only except `toJson` from import/export of chronicles
* [docs] fix two client scenario: add missing collateral
* [integration] separate step to wait for node to be started
* [cli] add option to specify ethereum private key
* Remove unused imports
* Fix warnings
* [integration] move type definitions to correct place
* [integration] wait a bit longer for a node to start in debug mode
When e.g. running against Taiko test net rpc, the node start
takes longer
* [integration] simplify handling of codex node and client
* [integration] add Taiko integration test
* [contracts] await token approval confirmation before next tx
* [contracts] deployment address of marketplace on Taiko
* [cli] --eth-private-key now takes a file name
Instead of supplying the private key on the command line,
expect the private key to be in a file with the correct
permissions.
* [utils] Fixes undeclared `activeChroniclesStream` on Windows
* [build] update nim-ethers to include PR #52
Co-authored-by: Eric Mastro <eric.mastro@gmail.com>
* [cli] Better error messages when reading eth private key
Co-authored-by: Eric Mastro <eric.mastro@gmail.com>
* [integration] simplify reading of cmd line arguments
Co-authored-by: Eric Mastro <eric.mastro@gmail.com>
* [build] update to latest version of nim-ethers
* [contracts] updated contract address for Taiko L2
* [build] update codex contracts to latest version
---------
Co-authored-by: Eric Mastro <eric.mastro@gmail.com>
* Improve integration testing client (CodexClient) and json serialization
The current client used for integration testing against the REST endpoints for Codex accepts and passes primitive types. This caused a hard to diagnose bug where a `uint` was not being deserialized correctly.
In addition, the json de/serializing done between the CodexClient and REST client was not easy to read and was not tested.
These changes bring non-primitive types to most of the CodexClient functions, allowing us to lean on the compiler to ensure we're providing correct typings. More importantly, a json de/serialization util was created as a drop-in replacement for the std/json lib, with the main two differences being that field serialization is opt-in (instead of opt-out as in the case of json_serialization) and serialization errors are captured and logged, making debugging serialization issues much easier.
* Update integration test to use nodes=2 and tolerance=1
* clean up
## Slot queue
Adds a slot queue, as per the [slot queue design](https://github.com/codex-storage/codex-research/blob/master/design/sales.md#slot-queue).
Any time storage is requested, all slots from that request are immediately added to the queue. Finished, Canclled, Failed requests remove all slots with that request id from the queue. SlotFreed events add a new slot to the queue and SlotFilled events remove the slot from the queue. This allows popping of a slot each time one is processed, making things much simpler.
When an entire request of slots is added to the queue, the slot indices are shuffled randomly to hopefully prevent nodes that pick up the same storage requested event from clashing on the first processed slot index. This allowed removal of assigning a random slot index in the SalePreparing state and it also ensured that all SalesAgents will have a slot index assigned to them at the start thus the removal of the optional slotIndex.
Remove slotId from SlotFreed event as it was not being used. RequestId and slotIndex were added to the SlotFreed event earlier and those are now being used
The slot queue invariant that prioritises queue items added to the queue relies on a scoring mechanism to sort them based on the [sort order in the design document](https://github.com/codex-storage/codex-research/blob/master/design/sales.md#sort-order).
When a storage request is handled by the sales module, a slot index was randomly assigned and then the slot was filled. Now, a random slot index is only assigned when adding an entire request to the slot queue. Additionally, the slot is checked that its state is `SlotState.Free` before continuing with the download process.
SlotQueue should always ensure the underlying AsyncHeapQueue has one less than the maximum items, ensuring the SlotQueue can always have space to add an additional item regardless if it’s full or not.
Constructing `SlotQueue.workers` in `SlotQueue.new` calls `newAsyncQueue` which causes side effects, so the construction call had to be moved to `SlotQueue.start`.
Prevent loading request from contract (network request) if there is an existing item in queue for that request.
Check availability before adding request to queue.
Add ability to query market contract for past events. When new availabilities are added, the `onReservationAdded` callback is triggered in which past `StorageRequested` events are queried, and those slots are added to the queue (filtered by availability on `push` and filtered by state in `SalePreparing`).
#### Request Workers
Limit the concurrent requests being processed in the queue by using a limited pool of workers (default = 3). Workers are in a data structure of type `AsyncQueue[SlotQueueWorker]`. This allows us to await a `popFirst` for available workers inside of the main SlotQueue event loop
Add an `onCleanUp` that stops the agents and removes them from the sales module agent list. `onCleanUp` is called from sales end states (eg ignored, cancelled, finished, failed, errored).
Add a `doneProcessing` future to `SlotQueueWorker` to be completed in the `OnProcessSlot` callback. Each `doneProcessing` future created is cancelled and awaited in `SlotQueue.stop` (thanks to `TrackableFuturees`), which forced `stop` to become async.
- Cancel dispatched workers and the `onProcessSlot` callbacks, prevents zombie callbacks
#### Add TrackableFutures
Allow tracking of futures in a module so they can be cancelled at a later time. Useful for asyncSpawned futures, but works for any future.
### Sales module
The sales module needed to subscribe to request events to ensure that the request queue was managed correctly on each event. In the process of doing this, the sales agents were updated to avoid subscribing to events in each agent, and instead dispatch received events from the sales module to all created sales agents. This would prevent memory leaks on having too many eventemitters subscribed to.
- prevent removal of agents from sales module while stopping, otherwise the agents seq len is modified while iterating
An additional sales agent state was added, `SalePreparing`, that handles all state machine setup, such as retrieving the request and subscribing to events that were previously in the `SaleDownloading` state.
Once agents have parked in an end state (eg ignored, cancelled, finished, failed, errored), they were not getting cleaned up and the sales module was keeping a handle on their reference. An `onCleanUp` callback was created to be called after the state machine enters an end state, which could prevent a memory leak if the number of requests coming in is high.
Move the SalesAgent callback raises pragmas from the Sales module to the proc definition in SalesAgent. This avoids having to catch `Exception`.
- remove unneeded error handling as pragmas were moved
Move sales.subscriptions from an object containing named subscriptions to a `seq[Subscription]` directly on the sales object.
Sales tests: shut down repo after sales stop, to fix SIGABRT in CI
### Add async Promise API
- modelled after JavaScript Promise API
- alternative to `asyncSpawn` that allows handling of async calls in a synchronous context (including access to the synchronous closure) with less additional procs to be declared
- Write less code, catch errors that would otherwise defect in asyncspawn, and execute a callback after completion
- Add cancellation callbacks to utils/then, ensuring cancellations are handled properly
## Dependencies
- bump codex-contracts-eth to support slot queue (https://github.com/codex-storage/codex-contracts-eth/pull/61)
- bump nim-ethers to 0.5.0
- Bump nim-json-rpc submodule to 0bf2bcb
---------
Co-authored-by: Jaremy Creechley <creechley@gmail.com>
Previously it could take up to one second to complete
the future. This messed with the timings in the
integration tests and made them less predictable.
* Fixes/workarounds for nimsuggest failures in codex.nim.
* remove rng prefix - it appears to work now
* format new's to be more consistent
* making proc formatting a bit more consistent
Eric
Marcin Czenko
Adam Uhlíř
Slava
markspanbroek
Ben Bierens
Giuliano Mega
Jaremy Creechley