chore: remove unnecessary checks

Author: SimenB

packages/jest-changed-files/src/git.ts

@@ -34,15 +34,13 @@ const findChangedFilesUsingCommand = async (
 
 const adapter: SCMAdapter = {
   findChangedFiles: async (cwd, options) => {
-    const changedSince: string | undefined =
-      options && (options.withAncestor ? 'HEAD^' : options.changedSince);
+    const changedSince = options.withAncestor ? 'HEAD^' : options.changedSince;
 
-    const includePaths: Array<Config.Path> = (
-      (options && options.includePaths) ||
-      []
-    ).map(absoluteRoot => path.normalize(path.relative(cwd, absoluteRoot)));
+    const includePaths = (options.includePaths ?? []).map(absoluteRoot =>
+      path.normalize(path.relative(cwd, absoluteRoot)),
+    );
 
-    if (options && options.lastCommit) {
+    if (options.lastCommit) {
       return findChangedFilesUsingCommand(
         ['show', '--name-only', '--pretty=format:', 'HEAD', '--'].concat(
           includePaths,

packages/jest-changed-files/src/hg.ts

@@ -8,22 +8,20 @@
 
 import * as path from 'path';
 import execa = require('execa');
-import type {Config} from '@jest/types';
 import type {SCMAdapter} from './types';
 
 const env = {...process.env, HGPLAIN: '1'};
 
 const adapter: SCMAdapter = {
   findChangedFiles: async (cwd, options) => {
-    const includePaths: Array<Config.Path> =
-      (options && options.includePaths) || [];
+    const includePaths = options.includePaths ?? [];
 
     const args = ['status', '-amnu'];
-    if (options && options.withAncestor) {
+    if (options.withAncestor) {
       args.push('--rev', 'min((!public() & ::.)+.)^');
-    } else if (options && options.changedSince) {
+    } else if (options.changedSince) {
       args.push('--rev', `ancestor(., ${options.changedSince})`);
-    } else if (options && options.lastCommit === true) {
+    } else if (options.lastCommit === true) {
       args.push('--change', '.');
     }
     args.push(...includePaths);