update error from execa in jest-changed-files

e2e/__tests__/__snapshots__/jestChangedFiles.test.ts.snap

@@ -7,7 +7,6 @@ exports[`handles a bad revision for "changedSince", for git 1`] = `
 
     fatal: bad revision '^blablabla'
 
-
 `;
 
 exports[`handles a bad revision for "changedSince", for hg 1`] = `
@@ -17,5 +16,4 @@ exports[`handles a bad revision for "changedSince", for hg 1`] = `
 
     abort: unknown revision 'blablabla'!
 
-
 `;

e2e/runJest.ts

@@ -9,7 +9,11 @@
 import * as path from 'path';
 import * as fs from 'fs';
 import {Writable} from 'stream';
-import execa, {ExecaChildProcess, ExecaReturnValue} from 'execa';
+import execa, {
+  ExecaChildProcess,
+  ExecaReturnValue,
+  ExecaSyncReturnValue,
+} from 'execa';
 import stripAnsi from 'strip-ansi';
 import {normalizeIcons} from './Utils';
 
@@ -39,7 +43,7 @@ function spawnJest(
   args?: Array<string>,
   options?: RunJestOptions,
   spawnAsync?: false,
-): ExecaReturns;
+): ExecaReturnValue;
 function spawnJest(
   dir: string,
   args?: Array<string>,
@@ -53,7 +57,7 @@ function spawnJest(
   args?: Array<string>,
   options: RunJestOptions = {},
   spawnAsync: boolean = false,
-): ExecaReturnValue | ExecaChildProcess {
+): ExecaSyncReturnValue | ExecaChildProcess {
   const isRelative = !path.isAbsolute(dir);
 
   if (isRelative) {
@@ -91,15 +95,15 @@ function spawnJest(
   );
 }
 
-type RunJestResult = ExecaReturns & {
+interface RunJestResult extends ExecaReturnValue {
   status?: number;
   code?: number;
   json?: (
     dir: string,
     args: Array<string> | undefined,
     options: RunJestOptions,
   ) => RunJestResult;
-};
+}
 
 function normalizeResult(result: RunJestResult, options: RunJestOptions) {
   // For compat with cross-spawn

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

@@ -7,7 +7,7 @@
  */
 
 import * as path from 'path';
-import execa from 'execa';
+import execa, {ExecaReturnValue} from 'execa';
 import {Config} from '@jest/types';
 
 import {SCMAdapter} from './types';
@@ -16,7 +16,16 @@ const findChangedFilesUsingCommand = async (
   args: Array<string>,
   cwd: Config.Path,
 ): Promise<Array<Config.Path>> => {
-  const result = await execa('git', args, {cwd});
+  let result: ExecaReturnValue;
+
+  try {
+    result = await execa('git', args, {cwd});
+  } catch (e) {
+    // TODO: Should we keep the original `message`?
+    e.message = e.stderr;
+
+    throw e;
+  }
 
   return result.stdout
     .split('\n')

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

@@ -7,7 +7,7 @@
  */
 
 import * as path from 'path';
-import execa from 'execa';
+import execa, {ExecaReturnValue} from 'execa';
 import {Config} from '@jest/types';
 
 import {SCMAdapter} from './types';
@@ -29,7 +29,16 @@ const adapter: SCMAdapter = {
     }
     args.push(...includePaths);
 
-    const result = await execa('hg', args, {cwd, env});
+    let result: ExecaReturnValue;
+
+    try {
+      result = await execa('hg', args, {cwd, env});
+    } catch (e) {
+      // TODO: Should we keep the original `message`?
+      e.message = e.stderr;
+
+      throw e;
+    }
 
     return result.stdout
       .split('\n')