From dfbb130e42b89adb5ca83e3687bf8eca320f2d2b Mon Sep 17 00:00:00 2001
From: david_wobrock <dw@3yourmind.com>
Date: Thu, 6 Jul 2017 17:05:51 +0200
Subject: [PATCH] Add output on git diff when failing & -v

---
 migration_linter.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/migration_linter.py b/migration_linter.py
index f1d7674..76adbba 100644
--- a/migration_linter.py
+++ b/migration_linter.py
@@ -76,6 +76,10 @@ class MigrationLinter:
                 self.changed_migration_files.append(line.strip())
         diff_process.wait()
         if diff_process.returncode != 0:
+            output = []
+            for line in diff_process.stderr.readlines():
+                output.append(line)
+            log.info("Error while git diff command:\n{}".format("".join(output)))
             raise Exception('Error while executing git diff command')
 
     def lint_migrations(self):