listen on hardhat compile

libs/remix-core-plugin/src/lib/compiler-artefacts.ts

@@ -58,6 +58,11 @@ export class CompilerArtefacts extends Plugin {
       this.compilersArtefacts.__last = new CompilerAbstract(languageVersion, data, source)
       saveCompilationPerFileResult(file, source, languageVersion, data)
     })
+
+    this.on('hardhat', 'compilationFinished', (file, source, languageVersion, data) => {
+      this.compilersArtefacts.__last = new CompilerAbstract(languageVersion, data, source)
+      saveCompilationPerFileResult(file, source, languageVersion, data)
+    })
   }
   
   /**

libs/remix-ui/run-tab/src/lib/actions/events.ts

@@ -51,6 +51,8 @@ export const setupEvents = (plugin: RunTab, dispatch: React.Dispatch<any>) => {
 
   plugin.on('nahmii-compiler', 'compilationFinished', (file, source, languageVersion, data) => broadcastCompilationResult(plugin, dispatch, file, source, languageVersion, data))
 
+  plugin.on('hardhat', 'compilationFinished', (file, source, languageVersion, data) => broadcastCompilationResult(plugin, dispatch, file, source, languageVersion, data))
+
   plugin.on('udapp', 'setEnvironmentModeReducer', (env: { context: string, fork: string }, from: string) => {
     plugin.call('notification', 'toast', envChangeNotification(env, from))
     setExecutionContext(plugin, dispatch, env)

libs/remix-ui/run-tab/src/lib/components/contractDropdownUI.tsx

@@ -31,6 +31,10 @@ export function ContractDropdownUI (props: ContractDropdownProps) {
   const atAddressValue = useRef<HTMLInputElement>(null)
   const { contractList, loadType, currentFile, currentContract, compilationCount, deployOptions, proxyKey } = props.contracts
 
+  useEffect(() => {
+    enableContractNames(true)
+  }, [Object.keys(props.contracts.contractList).length])
+
   useEffect(() => {
     enableAtAddress(false)
     setAbiLabel({
@@ -72,13 +76,7 @@ export function ContractDropdownUI (props: ContractDropdownProps) {
       })
       if (!currentContract) enableAtAddress(false)
     }
-    if (currentFile) {
     enableContractNames(true)
-      setCompFails('none')
-    } else {
-      enableContractNames(false)
-      setCompFails('block')
-    }
     initSelectedContract()
   }, [loadType, currentFile, compilationCount])
 

libs/remixd/src/services/hardhatClient.ts

@@ -1,5 +1,8 @@
 import * as WS from 'ws' // eslint-disable-line
 import { PluginClient } from '@remixproject/plugin'
+import * as chokidar from 'chokidar'
+import * as utils from '../utils'
+import * as fs from 'fs-extra'
 const { spawn } = require('child_process') // eslint-disable-line
 
 export class HardhatClient extends PluginClient {
@@ -18,6 +21,7 @@ export class HardhatClient extends PluginClient {
 
   sharedFolder (currentSharedFolder: string): void {
     this.currentSharedFolder = currentSharedFolder
+    this.listenOnHardhatCompilation()
   }
 
   compile (configPath: string) {
@@ -46,4 +50,19 @@ export class HardhatClient extends PluginClient {
       })
     })
   }
+
+  listenOnHardhatCompilation () {
+    try {
+      const buildPath = utils.absolutePath('artifacts/build-info', this.currentSharedFolder)
+      const watcher = chokidar.watch(buildPath, { depth: 0, ignorePermissionErrors: true })
+      watcher.on('change', async (f: string) => {
+        const content = await fs.readFile(f, { encoding: 'utf-8' })
+        const compilationResult = JSON.parse(content)
+        this.call('terminal', 'log', {type: 'info', value: 'received compilation result from hardhat'})
+        this.emit('compilationFinished', '', compilationResult.input, 'soljson', compilationResult.output, compilationResult.solcVersion)
+      })
+    } catch (e) {
+      console.log(e)
+    }    
+  }
 }