support base root gauge factory

manifest.template.yaml

@@ -321,6 +321,34 @@ dataSources:
         - event: GaugeCreated(indexed address)
           handler: handleRootGaugeCreated
   {{/if}}
+  {{#if baseRootGaugeV2Factory}}
+  - kind: ethereum/contract
+    name: BaseRootGaugeV2Factory
+    # prettier-ignore
+    network: {{network}}
+    source:
+      address: '{{baseRootGaugeV2Factory.address}}'
+      abi: OptimismRootGaugeV2Factory
+      # prettier-ignore
+      startBlock: {{ baseRootGaugeV2Factory.startBlock }}
+    mapping:
+      kind: ethereum/events
+      apiVersion: 0.0.5
+      language: wasm/assemblyscript
+      file: ./src/gaugeFactory.ts
+      abis:
+        - name: LiquidityGauge
+          file: ./abis/LiquidityGaugeV2.json
+        - name: ArbitrumRootGauge
+          file: ./abis/ArbitrumRootGauge.json
+        - name: OptimismRootGaugeV2Factory
+          file: ./abis/OptimismRootGaugeV2Factory.json
+      entities:
+        - RootGauge
+      eventHandlers:
+        - event: GaugeCreated(indexed address)
+          handler: handleRootGaugeCreated
+  {{/if}}
   {{#if gnosisRootGaugeV2Factory}}
   - kind: ethereum/contract
     name: GnosisRootGaugeV2Factory

networks.yaml

@@ -79,6 +79,9 @@ mainnet:
   avalancheRootGaugeV2Factory:
     address: "0x22625eEDd92c81a219A83e1dc48f88d54786B017"
     startBlock: 18064732
+  baseRootGaugeV2Factory:
+    address: "0x8e3B64b3737097F283E965869e3503AA20F31E4D"
+    startBlock: 18077886
   polygonZkEVMRootGaugeV2Factory:
     address: "0x9bF951848288cCD87d06FaC426150262cD3447De"
     startBlock: 17295833

schema.graphql

@@ -149,6 +149,7 @@ enum Chain {
   Optimism
   Avalanche
   PolygonZkEvm
+  Base
 }
 
 type RootGauge @entity {

src/gaugeFactory.ts

@@ -15,6 +15,7 @@ import { RewardsOnlyGaugeCreated } from './types/ChildChainLiquidityGaugeFactory
 import {
   isArbitrumFactory,
   isAvalancheFactory,
+  isBaseFactory,
   isGnosisFactory,
   isOptimismFactory,
   isPolygonFactory,
@@ -190,6 +191,8 @@ export function handleRootGaugeCreated(event: RootGaugeCreated): void {
     gauge.chain = 'Avalanche';
   } else if (isPolygonZkEVMFactory(factoryAddress)) {
     gauge.chain = 'PolygonZkEvm';
+  } else if (isBaseFactory(factoryAddress)) {
+    gauge.chain = 'Base';
   }
 
   gauge.save();

src/utils/constants.ts

@@ -76,6 +76,9 @@ export const GNOSIS_ROOT_GAUGE_V2_FACTORY = Address.fromString(
 export const OPTIMISM_ROOT_GAUGE_V2_FACTORY = Address.fromString(
   '0x866D4B65694c66fbFD15Dd6fa933D0A6b3940A36',
 );
+export const BASE_ROOT_GAUGE_V2_FACTORY = Address.fromString(
+  '0x8e3B64b3737097F283E965869e3503AA20F31E4D',
+);
 export const POLYGON_ROOT_GAUGE_V2_FACTORY = Address.fromString(
   '0xa98Bce70c92aD2ef3288dbcd659bC0d6b62f8F13',
 );
@@ -133,3 +136,7 @@ export function isAvalancheFactory(factory: Address): boolean {
 export function isPolygonZkEVMFactory(factory: Address): boolean {
   return factory == POLYGON_ZKEVM_ROOT_GAUGE_V2_FACTORY;
 }
+
+export function isBaseFactory(factory: Address): boolean {
+  return factory == BASE_ROOT_GAUGE_V2_FACTORY;
+}