chore: Simplify xcodebuild lines monitoring (#916)

lib/xcodebuild.js

@@ -10,7 +10,6 @@ import {
 } from './utils';
 import _ from 'lodash';
 import path from 'path';
-import { EOL } from 'os';
 import { WDA_RUNNER_BUNDLE_ID } from './constants';
 
 
@@ -26,6 +25,13 @@ const IGNORED_ERRORS = [
   ERROR_COPYING_ATTACHMENT,
   'Failed to remove screenshot at path',
 ];
+const IGNORED_ERRORS_PATTERN = new RegExp(
+  '(' +
+  IGNORED_ERRORS
+    .map((errStr) => _.escapeRegExp(errStr))
+    .join('|') +
+  ')'
+);
 
 const RUNNER_SCHEME_TV = 'WebDriverAgentRunner_tvOS';
 const LIB_SCHEME_TV = 'WebDriverAgentLib_tvOS';
@@ -324,27 +330,26 @@ export class XcodeBuild {
       ? `Output from xcodebuild ${this.showXcodeLog ? 'will' : 'will not'} be logged`
       : 'Output from xcodebuild will only be logged if any errors are present there';
     this.log.debug(`${logMsg}. To change this, use 'showXcodeLog' desired capability`);
-    xcodebuild.on('output', (stdout, stderr) => {
-      let out = stdout || stderr;
 
+    const onStreamLine = (/** @type {string} */ line) => {
+      if (this.showXcodeLog === false || IGNORED_ERRORS_PATTERN.test(line)) {
+        return;
+      }
       // if we have an error we want to output the logs
       // otherwise the failure is inscrutible
       // but do not log permission errors from trying to write to attachments folder
-      const ignoreError = IGNORED_ERRORS.some((x) => out.includes(x));
-      if (this.showXcodeLog !== false && out.includes('Error Domain=') && !ignoreError) {
+      if (line.includes('Error Domain=')) {
         logXcodeOutput = true;
-
         // handle case where xcode returns 0 but is failing
         this._didBuildFail = true;
       }
-
-      // do not log permission errors from trying to write to attachments folder
-      if (logXcodeOutput && !ignoreError) {
-        for (const line of out.split(EOL)) {
-          xcodeLog.error(line);
-        }
+      if (logXcodeOutput) {
+        xcodeLog.info(line);
       }
-    });
+    };
+    for (const streamName of ['stderr', 'stdout']) {
+      xcodebuild.on(`line-${streamName}`, onStreamLine);
+    }
 
     return xcodebuild;
   }

package.json

@@ -48,7 +48,6 @@
   },
   "homepage": "https://github.com/appium/WebDriverAgent#readme",
   "devDependencies": {
-    "@appium/eslint-config-appium": "^8.0.4",
     "@appium/eslint-config-appium-ts": "^0.x",
     "@appium/test-support": "^3.0.0",
     "@appium/tsconfig": "^0.x",
@@ -86,7 +85,7 @@
     "bluebird": "^3.5.5",
     "lodash": "^4.17.11",
     "source-map-support": "^0.x",
-    "teen_process": "^2.0.0"
+    "teen_process": "^2.2.0"
   },
   "files": [
     "index.ts",

tsconfig.json

@@ -3,6 +3,7 @@
   "extends": "@appium/tsconfig/tsconfig.json",
   "compilerOptions": {
     "strict": false,  // TODO: make this flag true
+    "esModuleInterop": true,
     "outDir": "build",
     "types": ["node"],
     "checkJs": true