Refactor thread kill

FlowPluginsTs/FlowHelpers/1.0.0/cliUtils.ts

@@ -274,13 +274,12 @@ class CLI {
     const errorLogFull: string[] = [];
 
     this.config.jobLog(`Running ${this.config.cli} ${this.config.spawnArgs.join(' ')}`);
-    const cliExitCode: number = await new Promise((resolve) => {
-      try {
-        const opts = this.config.spawnOpts || {};
-        const spawnArgs = this.config.spawnArgs.map((row) => row.trim()).filter((row) => row !== '');
-        const thread = childProcess.spawn(this.config.cli, spawnArgs, opts);
+
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any,@typescript-eslint/explicit-module-boundary-types
+    let thread: any;
 
     process.on('exit', () => {
+      if (thread) {
         try {
           // eslint-disable-next-line no-console
           console.log('Main thread exiting, cleaning up running CLI');
@@ -291,8 +290,15 @@ class CLI {
           // eslint-disable-next-line no-console
           console.log(err);
         }
+      }
     });
 
+    const cliExitCode: number = await new Promise((resolve) => {
+      try {
+        const opts = this.config.spawnOpts || {};
+        const spawnArgs = this.config.spawnArgs.map((row) => row.trim()).filter((row) => row !== '');
+        thread = childProcess.spawn(this.config.cli, spawnArgs, opts);
+
         thread.stdout.on('data', (data: string) => {
           errorLogFull.push(data.toString());
           this.parseOutput(data);
@@ -328,6 +334,8 @@ class CLI {
       }
     });
 
+    thread = undefined;
+
     if (!this.config.logFullCliOutput) {
       this.config.jobLog(errorLogFull.slice(-1000).join(''));
     }