Using Biome.js instead of ESLint and Prettier

.vscode/settings.json

@@ -8,6 +8,7 @@
     "aseed",
     "astar",
     "ausd",
+    "biomejs",
     "bncs",
     "composablenodes",
     "crustnetwork",
@@ -37,6 +38,7 @@
     "litentry",
     "mangata",
     "metadatas",
+    "mkdocs",
     "mnemonic",
     "moonbase",
     "moonchain",

biome.json

@@ -0,0 +1,47 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.8.3/schema.json",
+  "formatter": {
+    "indentStyle": "space"
+  },
+  "organizeImports": {
+    "enabled": true
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": true,
+      "complexity": {
+        "noForEach": "off"
+      }
+    }
+  },
+  "files": {
+    "ignore": [
+      ".turbo",
+      ".vscode/extensions.json",
+      "build",
+      "dist",
+      "node_modules",
+      "out",
+      "target",
+      "mkdocs/site"
+    ]
+  },
+  "javascript": {
+    "formatter": {
+      "quoteStyle": "single"
+    }
+  },
+  "overrides": [
+    {
+      "include": ["*.test.ts"],
+      "linter": {
+        "rules": {
+          "suspicious": {
+            "noExplicitAny": "off"
+          }
+        }
+      }
+    }
+  ]
+}

cspell.config.cjs

@@ -1,4 +1,3 @@
-// eslint-disable-next-line @typescript-eslint/no-var-requires
 const vscodeConfig = require('./.vscode/settings.json');
 
 module.exports = {

examples/mrl-simple/index.ts

@@ -8,7 +8,7 @@ import {
 } from '@moonbeam-network/xcm-config';
 import { Keyring } from '@polkadot/api';
 import { cryptoWaitReady } from '@polkadot/util-crypto';
-import { Address, createWalletClient, http } from 'viem';
+import { http, type Address, createWalletClient } from 'viem';
 import { privateKeyToAccount } from 'viem/accounts';
 
 // disable unnecessary warning logs

examples/sdk-simple/index.ts

@@ -1,10 +1,8 @@
-/* eslint-disable import/no-extraneous-dependencies */
 import { dot, moonbeam, polkadot } from '@moonbeam-network/xcm-config';
-import { Sdk, TransferData } from '@moonbeam-network/xcm-sdk';
+import { Sdk, type TransferData } from '@moonbeam-network/xcm-sdk';
 import { Keyring } from '@polkadot/api';
 import { cryptoWaitReady } from '@polkadot/util-crypto';
-import { setTimeout } from 'node:timers/promises';
-import { Address, createWalletClient, http } from 'viem';
+import { http, type Address, createWalletClient } from 'viem';
 import { privateKeyToAccount } from 'viem/accounts';
 
 // Moonbeam Signer ===========================================================

lefthook.yml

@@ -1,8 +1,9 @@
 pre-commit:
   parallel: true
   commands:
-    eslint:
-      glob: '*.{ts,js,}'
-      run: pnpm eslint --fix {staged_files} && git update-index --again
+    biome:
+      glob: "*.{js,ts,cjs,mjs,d.cts,d.mts,jsx,tsx,json,jsonc}"
+      run: pnpm biome check --write --no-errors-on-unmatched --files-ignore-unknown=true --colors=off {staged_files}
+      stage_fixed: true
     spell:
       run: pnpm run spell

package.json

@@ -12,18 +12,15 @@
     "url": "git+https://github.com/moonbeam-foundation/xcm-sdk.git"
   },
   "type": "module",
-  "workspaces": [
-    "packages/*",
-    "examples/*"
-  ],
+  "workspaces": ["packages/*", "examples/*", "scripts/*"],
   "packageManager": "[email protected]",
   "scripts": {
     "preinstall": "npx only-allow pnpm",
     "build": "turbo run build",
     "dev": "turbo run dev",
     "link": "turbo run link",
-    "lint": "turbo run lint",
-    "lint:fix": "turbo run lint:fix",
+    "lint": "pnpm biome check .",
+    "lint:fix": "pnpm biome check --write .",
     "typecheck": "turbo run typecheck",
     "spell": "cspell --quiet -c cspell.config.cjs 'packages/**/src/**'",
     "test": "turbo run test",
@@ -49,23 +46,14 @@
     "@wormhole-foundation/sdk-evm": "^0.8.2"
   },
   "devDependencies": {
+    "@biomejs/biome": "^1.8.3",
     "@changesets/changelog-github": "^0.5.0",
     "@changesets/cli": "^2.27.7",
     "@slack/webhook": "^7.0.3",
     "@types/big.js": "^6.2.2",
-    "@typescript-eslint/eslint-plugin": "^7.18.0",
-    "@typescript-eslint/parser": "^7.18.0",
     "bun": "^1.1.25",
     "cspell": "^8.13.1",
     "dotenv": "^16.4.5",
-    "eslint": "^8.57.0",
-    "eslint-config-airbnb-base": "^15.0.0",
-    "eslint-config-airbnb-typescript": "^18.0.0",
-    "eslint-config-prettier": "^9.1.0",
-    "eslint-import-resolver-typescript": "^3.6.1",
-    "eslint-plugin-import": "^2.29.1",
-    "eslint-plugin-jest": "^28.8.0",
-    "eslint-plugin-prettier": "^5.2.1",
     "glob": "^11.0.0",
     "lefthook": "^1.7.11",
     "prettier": "^3.3.3",

packages/builder/fixtures/builderParamsMock.ts

@@ -1,6 +1,3 @@
-/* eslint-disable @typescript-eslint/no-explicit-any */
-// eslint-disable-next-line import/no-extraneous-dependencies
-import { vi } from 'vitest';
 import {
   Asset,
   AssetAmount,
@@ -10,13 +7,15 @@ import {
   EvmParachain,
   Parachain,
 } from '@moonbeam-network/xcm-types';
-import { MrlBuilderParams, BuilderPrams } from '../src';
+import { vi } from 'vitest';
+import type { BuilderPrams, MrlBuilderParams } from '../src';
 
 export const apiMock = {
   tx: {
     polkadotXcm: { send: vi.fn(() => 'polkadotXcm.send => RESULT') },
     xTokens: { transfer: vi.fn(() => 'xTokens.transfer => RESULT') },
   },
+  // biome-ignore lint/suspicious/noExplicitAny: <explanation>
 } as any;
 
 export const test = new Asset({ key: 'usdt', originSymbol: 'USDT' });

packages/builder/package.json

@@ -5,8 +5,6 @@
   "scripts": {
     "build": "tsup",
     "dev": "pnpm run build -- --watch",
-    "lint": "eslint ./src --ext .js,.ts",
-    "lint:fix": "pnpm run lint -- --fix",
     "typecheck": "tsc --noEmit",
     "test": "vitest --run",
     "test:watch": "vitest",
@@ -18,20 +16,14 @@
     "type": "git",
     "url": "git+https://github.com/moonbeam-foundation/xcm-sdk.git"
   },
-  "keywords": [
-    "moonbeam",
-    "moonriver",
-    "xcm"
-  ],
+  "keywords": ["moonbeam", "moonriver", "xcm"],
   "author": "moonbeam-foundation",
   "license": "MIT",
   "bugs": {
     "url": "https://github.com/moonbeam-foundation/xcm-sdk/issues"
   },
   "homepage": "https://moonbeam-foundation.github.io/xcm-sdk/latest",
-  "files": [
-    "build"
-  ],
+  "files": ["build"],
   "type": "module",
   "exports": "./build/index.mjs",
   "types": "./build/index.d.ts",

packages/builder/src/asset-min/AssetMinBuilder.interfaces.ts

@@ -1,6 +1,6 @@
 import type { ChainAssetId } from '@moonbeam-network/xcm-types';
-import type { SubstrateQueryConfig } from '../types/substrate/SubstrateQueryConfig';
 import type { ConfigBuilder } from '../builder.interfaces';
+import type { SubstrateQueryConfig } from '../types/substrate/SubstrateQueryConfig';
 
 export type AssetMinConfigBuilder = ConfigBuilder<
   SubstrateQueryConfig,

packages/builder/src/asset-min/AssetMinBuilder.test.ts

@@ -1,4 +1,3 @@
-// eslint-disable-next-line import/no-extraneous-dependencies
 import { describe, expect, it } from 'vitest';
 
 import { TypeRegistry, U128 } from '@polkadot/types';

packages/builder/src/asset-min/AssetMinBuilder.ts

@@ -1,9 +1,7 @@
-/* eslint-disable @typescript-eslint/no-use-before-define */
-
-import { Option } from '@polkadot/types';
-import { PalletAssetsAssetDetails } from '@polkadot/types/lookup';
+import type { Option } from '@polkadot/types';
+import type { PalletAssetsAssetDetails } from '@polkadot/types/lookup';
 import { SubstrateQueryConfig } from '../types/substrate/SubstrateQueryConfig';
-import { AssetMinConfigBuilder } from './AssetMinBuilder.interfaces';
+import type { AssetMinConfigBuilder } from './AssetMinBuilder.interfaces';
 
 export function AssetMinBuilder() {
   return {
@@ -21,7 +19,7 @@ function assetRegistry() {
           module: pallet,
           func: 'assetMetadatas',
           args: [asset],
-          // eslint-disable-next-line @typescript-eslint/no-explicit-any
+          // biome-ignore lint/suspicious/noExplicitAny: not sure how to fix this
           transform: async (response: Option<any>): Promise<bigint> =>
             response.unwrapOrDefault().minimalBalance.toBigInt(),
         }),
@@ -32,7 +30,7 @@ function assetRegistry() {
           module: pallet,
           func: 'currencyMetadatas',
           args: [asset],
-          // eslint-disable-next-line @typescript-eslint/no-explicit-any
+          // biome-ignore lint/suspicious/noExplicitAny: not sure how to fix this
           transform: async (response: Option<any>): Promise<bigint> =>
             response.unwrapOrDefault().minimalBalance.toBigInt(),
         }),

packages/builder/src/balance/BalanceBuilder.interfaces.ts

@@ -1,8 +1,8 @@
-import type { Struct, u128 } from '@polkadot/types';
 import type { ChainAsset } from '@moonbeam-network/xcm-types';
+import type { Struct, u128 } from '@polkadot/types';
+import type { ConfigBuilder } from '../builder.interfaces';
 import type { ContractConfig } from '../contract';
 import type { SubstrateQueryConfig } from '../types/substrate/SubstrateQueryConfig';
-import type { ConfigBuilder } from '../builder.interfaces';
 
 export type BalanceConfigBuilder = ConfigBuilder<
   ContractConfig | SubstrateQueryConfig,

packages/builder/src/balance/BalanceBuilder.test.ts

@@ -1,4 +1,3 @@
-// eslint-disable-next-line import/no-extraneous-dependencies
 import { describe, expect, it } from 'vitest';
 
 import { TypeRegistry, U128 } from '@polkadot/types';

packages/builder/src/balance/BalanceBuilder.ts

@@ -1,15 +1,13 @@
-/* eslint-disable @typescript-eslint/no-use-before-define */
-
-import { Option } from '@polkadot/types';
-import {
+import type { Option } from '@polkadot/types';
+import type {
   FrameSystemAccountInfo,
   PalletAssetsAssetAccount,
   PalletBalancesAccountData,
 } from '@polkadot/types/lookup';
 import { evmToAddress } from '@polkadot/util-crypto';
 import { ContractConfig } from '../contract';
 import { SubstrateQueryConfig } from '../types/substrate/SubstrateQueryConfig';
-import {
+import type {
   BalanceConfigBuilder,
   EquilibriumSystemBalanceData,
   PalletBalancesAccountDataOld,
@@ -103,9 +101,9 @@ function system() {
               balances = res;
             }
 
-            // eslint-disable-next-line @typescript-eslint/no-explicit-any
+            // biome-ignore lint/suspicious/noExplicitAny: not sure how to fix this
             if (Array.isArray((res as any)?.v0?.balance)) {
-              // eslint-disable-next-line @typescript-eslint/no-explicit-any
+              // biome-ignore lint/suspicious/noExplicitAny: not sure how to fix this
               balances = (res as any).v0.balance;
             }
 

packages/builder/src/contract/ContractBuilder.interfaces.ts

@@ -1,4 +1,4 @@
-import type { ContractConfig } from '../types/ContractConfig';
 import type { ConfigBuilder } from '../builder.interfaces';
+import type { ContractConfig } from '../types/ContractConfig';
 
 export type ContractConfigBuilder = ConfigBuilder<ContractConfig>;

packages/builder/src/contract/contracts/Xtokens/Xtokens.ts

@@ -1,10 +1,9 @@
-/* eslint-disable @typescript-eslint/no-use-before-define */
-import { AnyParachain, EvmParachain } from '@moonbeam-network/xcm-types';
+import { type AnyParachain, EvmParachain } from '@moonbeam-network/xcm-types';
 import { formatAssetIdToERC20 } from '@moonbeam-network/xcm-utils';
 import { u8aToHex } from '@polkadot/util';
 import { decodeAddress, evmToAddress } from '@polkadot/util-crypto';
-import { ContractConfigBuilder } from '../../ContractBuilder.interfaces';
 import { ContractConfig } from '../../../types/ContractConfig';
+import type { ContractConfigBuilder } from '../../ContractBuilder.interfaces';
 import { XTOKENS_ABI } from './XtokensABI';
 
 const U_64_MAX = 18446744073709551615n;

packages/builder/src/extrinsic/ExtrinsicBuilder.interfaces.ts

@@ -1,5 +1,5 @@
-import type { ExtrinsicConfig } from '../types/substrate/ExtrinsicConfig';
 import type { ConfigBuilder } from '../builder.interfaces';
+import type { ExtrinsicConfig } from '../types/substrate/ExtrinsicConfig';
 
 export type ExtrinsicConfigBuilder = ConfigBuilder<ExtrinsicConfig>;
 

packages/builder/src/extrinsic/ExtrinsicBuilder.ts

@@ -1,5 +1,3 @@
-/* eslint-disable @typescript-eslint/no-use-before-define */
-
 import { eqBalances } from './pallets/eqBalances';
 import { polkadotXcm } from './pallets/polkadotXcm';
 import { xTokens } from './pallets/xTokens';

packages/builder/src/extrinsic/ExtrinsicBuilder.utils.ts

@@ -1,12 +1,12 @@
-import { SubmittableExtrinsicFunction } from '@polkadot/api/types';
+import type { SubmittableExtrinsicFunction } from '@polkadot/api/types';
 import { getTypeDef } from '@polkadot/types';
 import { u8aToHex } from '@polkadot/util';
 import { decodeAddress } from '@polkadot/util-crypto';
 import { XcmVersion } from './ExtrinsicBuilder.interfaces';
 
 export function getExtrinsicArgumentVersion(
   func?: SubmittableExtrinsicFunction<'promise'>,
-  index: number = 0,
+  index = 0,
 ): XcmVersion {
   if (!func) return XcmVersion.v1;
 

packages/builder/src/extrinsic/pallets/eqBalances/eqBalances.test.ts

@@ -1,5 +1,3 @@
-/* eslint-disable @typescript-eslint/no-explicit-any */
-// eslint-disable-next-line import/no-extraneous-dependencies
 import { describe, expect, it } from 'vitest';
 
 import {

packages/builder/src/extrinsic/pallets/eqBalances/eqBalances.ts

@@ -1,6 +1,6 @@
-import { ExtrinsicConfigBuilder } from '../../ExtrinsicBuilder.interfaces';
-import { getExtrinsicAccount } from '../../ExtrinsicBuilder.utils';
 import { ExtrinsicConfig } from '../../../types/substrate/ExtrinsicConfig';
+import type { ExtrinsicConfigBuilder } from '../../ExtrinsicBuilder.interfaces';
+import { getExtrinsicAccount } from '../../ExtrinsicBuilder.utils';
 
 export enum EqBalancesFee {
   SovereignAccWillPay = 'SovereignAccWillPay',

packages/builder/src/extrinsic/pallets/polkadotXcm/polkadotXcm.test.ts

@@ -1,4 +1,3 @@
-// eslint-disable-next-line import/no-extraneous-dependencies
 import { describe, expect, it } from 'vitest';
 
 import {

packages/builder/src/extrinsic/pallets/polkadotXcm/polkadotXcm.ts

@@ -1,5 +1,5 @@
-import { ExtrinsicConfigBuilder } from '../../ExtrinsicBuilder.interfaces';
 import { ExtrinsicConfig } from '../../../types/substrate/ExtrinsicConfig';
+import type { ExtrinsicConfigBuilder } from '../../ExtrinsicBuilder.interfaces';
 import {
   getPolkadotXcmExtrinsicArgs,
   shouldFeeAssetPrecedeAsset,