- Jan 16, 2024
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Muharem Ismailov authored
Implements an XCM executor `WeightTrader`, facilitating fee payments in any asset that can be exchanged for a native asset. A few constraints need to be observed: - `buy_weight` and `refund` operations must be atomic, as another weight trader implementation might be attempted in case of failure. - swap credit must be utilized since there isn’t an account to which an asset of some class can be deposited with a guarantee to meet the existential deposit requirement. Also, operating with credits enhances the efficiency of the weight trader - https://github.com/paritytech/polkadot-sdk/pull/1677 related PRs: - (depends) https://github.com/paritytech/polkadot-sdk/pull/2031 - (depends) https://github.com/paritytech/polkadot-sdk/pull/1677 - (caused) https://github.com/paritytech/polkadot-sdk/pull/1847 - (caused) https://github.com/paritytech/polkadot-sdk/pull/1876 // DONE: impl `OnUnbalanced` for a `fungible/s` credit // DONE: make the trader free from a concept of a native currency and drop few fallible conversions. related issue - https://github.com/paritytech/polkadot-sdk/issues/1842 // DONE: tests --------- Co-authored-by: joe petrowski <[email protected]> Co-authored-by: Liam Aharon <[email protected]>
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- Jan 10, 2024
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Clara van Staden authored
- updates snowbridge crates to `0.9.0` - updates Cargo.toml files in preparation for publishing to crates.io - adds Kusama and Polkadot Snowbridge runtime config crates - moves runtime tests from the Snowbridge subtree into the bridge hub tests dir --------- Co-authored-by: claravanstaden <Cats 4 life!> Co-authored-by: Ron <[email protected]>
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dependabot[bot] authored
Bumps [lycheeverse/lychee-action](https://github.com/lycheeverse/lychee-action) from 2ac9f030ccdea0033e2510a23a67da2a2da98492 to fdea7032675810093199f485fe075f057cc37b3e. <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/lycheeverse/lychee-action/commit/fdea7032675810093199f485fe075f057cc37b3e"><code>fdea703</code></a> Update secure git hash for 1.9.0</li> <li><a href="https://github.com/lycheeverse/lychee-action/commit/22134d37a1fff6c2974df9c92a7c7e1e86a08f9c"><code>22134d3</code></a> Bump version to 1.9.0</li> <li><a href="https://github.com/lycheeverse/lychee-action/commit/ebd95ebde89b46eaf3567432efb0b52bad2187d7"><code>ebd95eb</code></a> Update to latest lychee 0.14.0</li> <li><a href="https://github.com/lycheeverse/lychee-action/commit/37d79d3b6eda9990480a57eed21c847792dec37a"><code>37d79d3</code></a> Add integration tests for absolute output path and <code>--dump</code> (<a href="https://redirect.github.com/lycheeverse/lychee-action/issues/218">#218</a>)</li> <li><a href="https://github.com/lycheeverse/lychee-action/commit/57219e4f1d23b32484889db3dbd73f6b814c9bfa"><code>57219e4</code></a> Add integration test for custom output paths (<a href="https://redirect.github.com/lycheeverse/lychee-action/issues/1309">#1309</a>) (<a href="https://redirect.github.com/lycheeverse/lychee-action/issues/217">#217</a>)</li> <li><a href="https://github.com/lycheeverse/lychee-action/commit/a4282891d5805c0d9df0c0d524e2e95a3b0d1ac5"><code>a428289</code></a> fix: cleanup if statement (<a href="https://redirect.github.com/lycheeverse/lychee-action/issues/215">#215</a>)</li> <li><a href="https://github.com/lycheeverse/lychee-action/commit/ef8c8f32c278e9eed290c6e6c96748f16b6cd335"><code>ef8c8f3</code></a> Add documentation on using the <code>--base</code> param when testing local files (<a href="https://redirect.github.com/lycheeverse/lychee-action/issues/211">#211</a>)</li> <li>See full diff in <a href="https://github.com/lycheeverse/lychee-action/compare/2ac9f030ccdea0033e2510a23a67da2a2da98492...fdea7032675810093199f485fe075f057cc37b3e ">compare view</a></li> </ul> </details> <br /> Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot show <dependency name> ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) </details> --------- Signed-off-by: dependabot[bot] <[email protected]> Signed-off-by: Oliver Tale-Yazdi <[email protected]> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Oliver Tale-Yazdi <[email protected]> Co-authored-by: PG Herveou <[email protected]>
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- Jan 05, 2024
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Tsvetomir Dimitrov authored
Fix some issues reported by clippy
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- Dec 22, 2023
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joe petrowski authored
Rococo and Westend runtimes for the "People Chain". This chain contains the Identity pallet with plans to migrate all related data from the Relay Chain. Changes `IdentityInfo` to: - Remove `additional_fields`. - Add `github` and `discord` as first class fields. From scraping chain data, these were the only two additional fields used (for the Fellowship and Ambassador Program, respectively). - Rename `riot` to `matrix`. Note: This will use the script in https://github.com/paritytech/polkadot-sdk/pull/2025 to generate the genesis state. TODO: - [x] https://github.com/paritytech/polkadot-sdk/pull/1814 and integration of the Identity Migrator pallet for migration. - [x] Tests: https://github.com/paritytech/polkadot-sdk/pull/2373 --------- Co-authored-by: Muharem <[email protected]> Co-authored-by: Michal Kucharczyk <[email protected]> Co-authored-by: Dónal Murray <[email protected]> Co-authored-by: Richard Melkonian <[email protected]> Co-authored-by: Liam Aharon <[email protected]>
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- Dec 21, 2023
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Clara van Staden authored
# Description Adds Snowbridge to the Rococo bridge hub runtime. Includes config changes required in Rococo asset hub. --------- Co-authored-by: Alistair Singh <[email protected]> Co-authored-by: ron <[email protected]> Co-authored-by: Vincent Geddes <[email protected]> Co-authored-by: claravanstaden <Cats 4 life!>
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- Dec 20, 2023
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Muharem Ismailov authored
closes https://github.com/paritytech/polkadot-sdk/issues/1842 Decoupling Pallet from the Concept of Native Currency Currently, the pallet is intrinsically linked with the concept of native currency, requiring users to provide implementations of the `fungible::*` and `fungibles::*` traits to interact with native and non native assets. This incapsulates some non-related to the pallet complexity and makes it less adaptable in contexts where the native currency concept is absent. With this PR, the dependence on `fungible::*` for liquidity-supplying assets has been removed. Instead, the native and non-native currencies' handling is now overseen by a single type that implements the `fungibles::*` traits. To simplify this integration, types have been introduced to facilitate the creation of a union between `fungible::*` and `fungibles::*` implementations, producing a unified `fungibles::*` type. One of the reasons driving these changes is the ambition to create a more user-friendly API for the `SwapCredit` implementation. Given that it interacts with two distinct credit types from `fungible` and `fungibles`, a unified type was introduced. Clients now manage potential conversion failures for those credit types. In certain contexts, it's vital to guarantee that operations are fail-safe, like in this impl - [PR](https://github.com/paritytech/polkadot-sdk/pull/1845), place in [code](https://github.com/paritytech/polkadot-sdk/blob/20b85a5fada8f55c98ba831964f5866ffeadf4da/cumulus/primitives/utility/src/lib.rs#L429). Additional Updates: - abstracted the pool ID and its account derivation logic via trait bounds, along with common implementation offerings; - removed `inc_providers` on a pool creation for the pool account; - benchmarks: -- swap complexity is N, not const; -- removed `From<u128> + Into<u128>` bound from `T::Balance`; -- removed swap/liquidity/.. amount constants, resolve them dynamically based on pallet configuration; -- migrated to v2 API; - `OnUnbalanced` handler for the pool creation fee, replacing direct transfers to a specified account ID; - renamed `MultiAssetId` to `AssetKind` aligning with naming across frame crates; related PRs: - (depends) https://github.com/paritytech/polkadot-sdk/pull/1677 - (caused) https://github.com/paritytech/polkadot-sdk/pull/2033 - (caused) https://github.com/paritytech/polkadot-sdk/pull/1876 --------- Co-authored-by: joe petrowski <[email protected]> Co-authored-by: Liam Aharon <[email protected]>
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- Dec 19, 2023
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Muharem Ismailov authored
Introduces a swap implementation that allows the exchange of a credit (aka Negative Imbalance) of one asset for a credit of another asset. This is particularly useful when a credit swap is required but may not have sufficient value to meet the ED constraint, hence cannot be deposited to temp account before. An example use case is when XCM fees are paid using an asset held in the XCM executor registry and has to be swapped for native currency. Additional Updates: - encapsulates the existing `Swap` trait impl within a transactional context, since partial storage mutation is possible when an error occurs; - supplied `Currency` and `Assets` impls must be implemented over the same `Balance` type, the `AssetBalance` generic type is dropped. This helps to avoid numerous type conversion and overflow cases. If those types are different it should be handled outside of the pallet; - `Box` asset kind on a pallet level, unbox on a runtime level - here [why](https://substrate.stackexchange.com/questions/10039/boxed-argument-of-a-dispatchable/10103#10103); - `path` uses `Vec` now, instead of `BoundedVec` since it is never used in PoV; - removes the `Transfer` event due to it's redundancy with the events emitted by `fungible/s` implementations; - modifies the `SwapExecuted` event type; related issue: - https://github.com/paritytech/polkadot-sdk/issues/105 related PRs: - (required for) https://github.com/paritytech/polkadot-sdk/pull/1845 - (caused) https://github.com/paritytech/polkadot-sdk/pull/1717 // DONE make the pallet work only with `fungibles` trait and make it free from the concept of a `native` asset - https://github.com/paritytech/polkadot-sdk/issues/1842 --------- Co-authored-by: joe petrowski <[email protected]>
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- Dec 13, 2023
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Squirrel authored
We currently use a bit of a hack in `.cargo/config` to make sure that clippy isn't too annoying by specifying the list of lints. There is now a stable way to define lints for a workspace. The only down side is that every crate seems to have to opt into this so there's a *few* files modified in this PR. Dependencies: - [x] PR that upgrades CI to use rust 1.74 is merged. --------- Co-authored-by: joe petrowski <[email protected]> Co-authored-by: Branislav Kontur <[email protected]> Co-authored-by: Liam Aharon <[email protected]>
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- Dec 12, 2023
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Branislav Kontur authored
## Summary This pull request proposes a solution for improved control of the versioned XCM flow over the bridge (across different consensus chains) and resolves the situation where the sending chain/consensus has already migrated to a higher XCM version than the receiving chain/consensus. ## Problem/Motivation The current flow over the bridge involves a transfer from AssetHubRococo (AHR) to BridgeHubRococo (BHR) to BridgeHubWestend (BHW) and finally to AssetHubWestend (AHW), beginning with a reserve-backed transfer on AHR. In this process: 1. AHR sends XCM `ExportMessage` through `XcmpQueue`, incorporating XCM version checks using the `WrapVersion` feature, influenced by `pallet_xcm::SupportedVersion` (managed by `pallet_xcm::force_xcm_version` or version discovery). 2. BHR handles the `ExportMessage` instruction, utilizing the latest XCM version. The `HaulBlobExporter` converts the inner XCM to [`VersionedXcm::from`](https://github.com/paritytech/polkadot-sdk/blob/63ac2471aa0210f0ac9903bdd7d8f9351f9a635f/polkadot/xcm/xcm-builder/src/universal_exports.rs#L465-L467), also using the latest XCM version. However, challenges arise: - Incompatibility when BHW uses a different version than BHR. For instance, if BHR migrates to **XCMv4** while BHW remains on **XCMv3**, BHR's `VersionedXcm::from` uses `VersionedXcm::V4` variant, causing encoding issues for BHW. ``` /// Just a simulation of possible error, which could happen on BHW /// (this code is based on actual master without XCMv4) let encoded = hex_literal::hex!("0400"); println!("{:?}", VersionedXcm::<()>::decode(&mut &encoded[..])); Err(Error { cause: None, desc: "Could not decode `VersionedXcm`, variant doesn't exist" }) ``` - Similar compatibility issues exist between AHR and AHW. ## Solution This pull request introduces the following solutions: 1. **New trait `CheckVersion`** - added to the `xcm` module and exposing `pallet_xcm::SupportedVersion`. This enhancement allows checking the actual XCM version for desired destinations outside of the `pallet_xcm` module. 2. **Version Check in `HaulBlobExporter`** uses `CheckVersion` to check known/configured destination versions, ensuring compatibility. For example, in the scenario mentioned, BHR can store the version `3` for BHW. If BHR is on XCMv4, it will attempt to downgrade the message to version `3` instead of using the latest version `4`. 3. **Version Check in `pallet-xcm-bridge-hub-router`** - this check ensures compatibility with the real destination's XCM version, preventing the unnecessary sending of messages to the local bridge hub if versions are incompatible. These additions aim to improve the control and compatibility of XCM flows over the bridge and addressing issues related to version mismatches. ## Possible alternative solution _(More investigation is needed, and at the very least, it should extend to XCMv4/5. If this proves to be a viable option, I can open an RFC for XCM.)._ Add the `XcmVersion` attribute to the `ExportMessage` so that the sending chain can determine, based on what is stored in `pallet_xcm::SupportedVersion`, the version the destination is using. This way, we may not need to handle the version in `HaulBlobExporter`. ``` ExportMessage { network: NetworkId, destination: InteriorMultiLocation, xcm: Xcm<()> destination_xcm_version: Version, // <- new attritbute }, ``` ``` pub trait ExportXcm { fn validate( network: NetworkId, channel: u32, universal_source: &mut Option<InteriorMultiLocation>, destination: &mut Option<InteriorMultiLocation>, message: &mut Option<Xcm<()>>, destination_xcm_version: Version, , // <- new attritbute ) -> SendResult<Self::Ticket>; ``` ## Future Directions This PR does not fix version discovery over bridge, further investigation will be conducted here: https://github.com/paritytech/polkadot-sdk/issues/2417. ## TODO - [x] `pallet_xcm` mock for tests uses hard-coded XCM version `2` - change to 3 or lastest? - [x] fix `pallet-xcm-bridge-hub-router` - [x] fix HaulBlobExporter with version determination [here](https://github.com/paritytech/polkadot-sdk/blob/2183669d05f9b510f979a0cc3c7847707bacba2e/polkadot/xcm/xcm-builder/src/universal_exports.rs#L465) - [x] add unit-tests to the runtimes - [x] run benchmarks for `ExportMessage` - [x] extend local run scripts about `force_xcm_version(dest, version)` - [ ] when merged, prepare governance calls for Rococo/Westend - [ ] add PRDoc Part of: https://github.com/paritytech/parity-bridges-common/issues/2719 --------- Co-authored-by: command-bot <>
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- Dec 08, 2023
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Muharem Ismailov authored
Treasury Pallet Instance for the Fellowship in Westend Collectives. In this update, we present a Treasury Pallet Instance that is under the control of the Fellowship body, with oversight from the Root and Treasurer origins. Here's how it is governed: - the Root origin have the authority to reject or approve spend proposals, with no amount limit for approvals. - the Treasurer origin have the authority to reject or approve spend proposals, with approval limits of up to 10,000,000 DOT. - Voice of all Fellows ranked at 3 or above can reject or approve spend proposals, with a maximum approval limit of 10,000 DOT. - Voice of Fellows ranked at 4 or above can also reject or approve spend proposals, with a maximum approval limit of 10,000,000 DOT. Additionally, we introduce the Asset Rate Pallet Instance to establish conversion rates from asset A to B. This is used to determine if a proposed spend amount involving a non-native asset is permissible by the commanding origin. The rates can be set up by the Root, Treasurer origins, or Voice of all Fellows. --------- Co-authored-by: joe petrowski <[email protected]> Co-authored-by: joepetrowski <[email protected]>
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- Dec 06, 2023
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Branislav Kontur authored
## Summary This PR aligns Rococo/Westend bridge with latest Bridges repo development: - https://github.com/paritytech/parity-bridges-common/pull/2727 - https://github.com/paritytech/parity-bridges-common/pull/2728 - https://github.com/paritytech/parity-bridges-common/pull/2729 Part of: https://github.com/paritytech/parity-bridges-common/issues/2452
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Adrian Catangiu authored
# Motivation (+testing) ### Enable easy `ForeignAssets` transfers using `pallet-xcm` We had just previously added capabilities to teleport fees during reserve-based transfers, but what about reserve-transferring fees when needing to teleport some non-fee asset? This PR aligns everything under either explicit reserve-transfer, explicit teleport, or this new flexible `transfer_assets()` which can mix and match as needed with fewer artificial constraints imposed to the user. This will enable, for example, a (non-system) parachain to teleport their `ForeignAssets` assets to AssetHub while using DOT to pay fees. (the assets are teleported - as foreign assets should from their owner chain - while DOT used for fees can only be reserve-based transferred between said parachain and AssetHub). Added `xcm-emulator` tests for this scenario ^. # Description Reverts `(limited_)reserve_transfer_assets` to only allow reserve-based transfers for all `assets` including fees. Similarly `(limited_)teleport_assets` only allows teleports for all `assets` including fees. For complex combinations of asset transfers where assets and fees may have different reserves or different reserve/teleport trust configurations, users can use the newly added `transfer_assets()` extrinsic which is more flexible in allowing more complex scenarios. `assets` (excluding `fees`) must have same reserve location or otherwise be teleportable to `dest`. No limitations imposed on `fees`. - for local reserve: transfer assets to sovereign account of destination chain and forward a notification XCM to `dest` to mint and deposit reserve-based assets to `beneficiary`. - for destination reserve: burn local assets and forward a notification to `dest` chain to withdraw the reserve assets from this chain's sovereign account and deposit them to `beneficiary`. - for remote reserve: burn local assets, forward XCM to reserve chain to move reserves from this chain's SA to `dest` chain's SA, and forward another XCM to `dest` to mint and deposit reserve-based assets to `beneficiary`. - for teleports: burn local assets and forward XCM to `dest` chain to mint/teleport assets and deposit them to `beneficiary`. ## Review notes Only around 500 lines are prod code (see `pallet_xcm/src/lib.rs`), the rest of the PR is new tests and improving existing tests. --------- Co-authored-by: command-bot <>
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- Dec 01, 2023
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Liam Aharon authored
Using taplo, fixes all our broken and inconsistent toml formatting and adds CI to keep them tidy. If people want we can customise the format rules as described here https://taplo.tamasfe.dev/configuration/formatter-options.html @ggwpez , I suggest zepter is used only for checking features are propagated, and leave formatting for taplo to avoid duplicate work and conflicts. TODO - [x] Use `exclude = [...]` syntax in taplo file to ignore zombienet tests instead of deleting the dir --------- Signed-off-by: Oliver Tale-Yazdi <[email protected]> Co-authored-by: Oliver Tale-Yazdi <[email protected]> Co-authored-by: Bastian Köcher <[email protected]>
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- Nov 27, 2023
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Adrian Catangiu authored
Just adds more tests.
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- Nov 14, 2023
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Adrian Catangiu authored
- switch from Rococo<>Wococo to Rococo<>Westend bridge - add bidirectional simple tests - remove Wococo chains from xcm-emulator - added tests for assets transfers over Rococo<>Westend bridge fixes https://github.com/paritytech/parity-bridges-common/issues/2405
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- Nov 13, 2023
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Adrian Catangiu authored
## Motivation `pallet-xcm` is the main user-facing interface for XCM functionality, including assets manipulation functions like `teleportAssets()` and `reserve_transfer_assets()` calls. While `teleportAsset()` works both ways, `reserve_transfer_assets()` works only for sending reserve-based assets to a remote destination and beneficiary when the reserve is the _local chain_. ## Solution This PR enhances `pallet_xcm::(limited_)reserve_withdraw_assets` to support transfers when reserves are other chains. This will allow complete, **bi-directional** reserve-based asset transfers user stories using `pallet-xcm`. Enables following scenarios: - transferring assets with local reserve (was previously supported iff asset used as fee also had local reserve - now it works in all cases), - transferring assets with reserve on destination, - transferring assets with reserve on remote/third-party chain (iff assets and fees have same remote reserve), - transferring assets with reserve different than the reserve of the asset to be used as fees - meaning can be used to transfer random asset with local/dest reserve while using DOT for fees on all involved chains, even if DOT local/dest reserve doesn't match asset reserve, - transferring assets with any type of local/dest reserve while using fees which can be teleported between involved chains. All of the above is done by pallet inner logic without the user having to specify which scenario/reserves/teleports/etc. The correct scenario and corresponding XCM programs are identified, and respectively, built automatically based on runtime configuration of trusted teleporters and trusted reserves. #### Current limitations: - while `fees` and "non-fee" `assets` CAN have different reserves (or fees CAN be teleported), the remaining "non-fee" `assets` CANNOT, among themselves, have different reserve locations (this is also implicitly enforced by `MAX_ASSETS_FOR_TRANSFER=2`, but this can be safely increased in the future). - `fees` and "non-fee" `assets` CANNOT have **different remote** reserves (this could also be supported in the future, but adds even more complexity while possibly not being worth it - we'll see what the future holds). Fixes https://github.com/paritytech/polkadot-sdk/issues/1584 Fixes https://github.com/paritytech/polkadot-sdk/issues/2055 --------- Co-authored-by: Francisco Aguirre <[email protected]> Co-authored-by: Branislav Kontur <[email protected]>
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- Nov 08, 2023
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Ignacio Palacios authored
Closes: - #1383 - Declared chains can be now be imported and reused in a different crate. - Chain declaration are now generic over a generic type `N` (the Network) - #1389 - Solved #1383, chains and networks declarations can be restructure to avoid having to compile all chains when running integrations tests where are not needed. - Chains are now declared on its own crate (removed from `integration-tests-common`) - Networks are now declared on its own crate (removed from `integration-tests-common`) - Integration tests will import only the relevant Network crate - `integration-tests-common` is renamed to `emulated-integration-tests-common` All this is necessary to be able to implement what is described here: https://github.com/paritytech/roadmap/issues/56#issuecomment-1777010553 --------- Co-authored-by: command-bot <>
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