From 5318f00298d35dd26a4227d3b3166d6ba8d26e98 Mon Sep 17 00:00:00 2001
From: David <david@spektrakel.de>
Date: Wed, 1 May 2019 10:24:21 +0200
Subject: [PATCH] fix(schematics): print additional error info with `--verbose`
 flag in affected command

---
 docs/api-npmscripts/affected.md                    |  4 ++++
 packages/workspace/src/command-line/affected.ts    | 14 ++++++++++----
 packages/workspace/src/command-line/nx-commands.ts |  3 +++
 3 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/docs/api-npmscripts/affected.md b/docs/api-npmscripts/affected.md
index 4621df46ca9b9..1ccd8eafcb6fc 100644
--- a/docs/api-npmscripts/affected.md
+++ b/docs/api-npmscripts/affected.md
@@ -64,6 +64,10 @@ Uncommitted changes
 
 Untracked changes
 
+### verbose
+
+Print additional error stack trace on failure
+
 ### version
 
 Show version number
diff --git a/packages/workspace/src/command-line/affected.ts b/packages/workspace/src/command-line/affected.ts
index f01c2771de8e9..fbc3c41228ec1 100644
--- a/packages/workspace/src/command-line/affected.ts
+++ b/packages/workspace/src/command-line/affected.ts
@@ -39,6 +39,7 @@ export interface AffectedOptions extends GlobalNxArgs {
   onlyFailed?: boolean;
   'only-failed'?: boolean;
   'max-parallel'?: boolean;
+  verbose?: boolean;
 }
 
 // Commands that can do `ng [command]`
@@ -110,7 +111,7 @@ export function affected(parsedArgs: YargsAffectedOptions): void {
         break;
     }
   } catch (e) {
-    printError(e);
+    printError(e, parsedArgs.verbose);
     process.exit(1);
   }
 }
@@ -132,8 +133,12 @@ function getProjects(
     );
 }
 
-function printError(e: any) {
-  console.error(e.message);
+function printError(e: any, verbose?: boolean) {
+  if (verbose && e.stack) {
+    console.error(e.stack);
+  } else {
+    console.error(e.message);
+  }
 }
 
 async function runCommand(
@@ -333,7 +338,8 @@ const dummyOptions: AffectedOptions = {
   base: 'base',
   head: 'head',
   exclude: ['exclude'],
-  files: ['']
+  files: [''],
+  verbose: false
 };
 
 const nxSpecificFlags = Object.keys(dummyOptions);
diff --git a/packages/workspace/src/command-line/nx-commands.ts b/packages/workspace/src/command-line/nx-commands.ts
index 557799ae0d3e6..7baf0ed27cd98 100644
--- a/packages/workspace/src/command-line/nx-commands.ts
+++ b/packages/workspace/src/command-line/nx-commands.ts
@@ -201,6 +201,9 @@ function withAffectedOptions(yargs: yargs.Argv): yargs.Argv {
       type: 'boolean',
       default: false
     })
+    .option('verbose', {
+      describe: 'Print additional error stack trace on failure'
+    })
     .conflicts({
       files: ['uncommitted', 'untracked', 'base', 'head', 'all'],
       untracked: ['uncommitted', 'files', 'base', 'head', 'all'],