fix: kill other running tasks on failure

lib/resolveTaskFn.js

@@ -2,14 +2,17 @@ import { redBright, dim } from 'colorette'
 import execa from 'execa'
 import debug from 'debug'
 import { parseArgsStringToArgv } from 'string-argv'
+import pidTree from 'pidtree'
 
 import { error, info } from './figures.js'
 import { getInitialState } from './state.js'
 import { TaskError } from './symbols.js'
 
+export const FAIL_CHECK_INTERVAL = 200
+
 const debugLog = debug('lint-staged:resolveTaskFn')
 
-const getTag = ({ code, killed, signal }) => signal || (killed && 'KILLED') || code || 'FAILED'
+const getTag = ({ code, killed, signal }) => (killed && 'KILLED') || signal || code || 'FAILED'
 
 /**
  * Handle task console output.
@@ -101,9 +104,29 @@ export const resolveTaskFn = ({
   debugLog('execaOptions:', execaOptions)
 
   return async (ctx = getInitialState()) => {
-    const result = await (shell
+    let isExecutionDone = false
+    const execaChildProcess = shell
       ? execa.command(isFn ? command : `${command} ${files.join(' ')}`, execaOptions)
-      : execa(cmd, isFn ? args : args.concat(files), execaOptions))
+      : execa(cmd, isFn ? args : args.concat(files), execaOptions)
+
+    const interruptExecutionOnError = async () => {
+      if (!isExecutionDone) {
+        if (ctx.errors.size > 0) {
+          const ids = await pidTree(execaChildProcess.pid)
+          ids.forEach(process.kill)
+
+          // The execa process is killed separately in order
+          // to get the `KILLED` status.
+          execaChildProcess.kill()
+        } else {
+          setTimeout(interruptExecutionOnError, FAIL_CHECK_INTERVAL)
+        }
+      }
+    }
+    interruptExecutionOnError()
+
+    const result = await execaChildProcess
+    isExecutionDone = true
 
     if (result.failed || result.killed || result.signal != null) {
       throw makeErr(command, result, ctx)