utils: run: fix crash with failing tools & combined stderrandroid-s-beta-4android-s-beta-3android-s-beta-2android-s-beta-1android-s-beta-4

If we try to run a program that doesn't exist, don't crash while
trying to show the errors to the user.

Bug: 185946409
Test: pre-upload unittests pass
Change-Id: I70e00412bd000e907536011d245eaa82d36634f6

2 files changed, 11 insertions, 2 deletions

diff --git a/rh/utils.py b/rh/utils.py
index f59998c..aeab52f 100644
--- a/rh/utils.py
+++ b/rh/utils.py
@@ -417,9 +417,9 @@ def run(cmd, redirect_stdout=False, redirect_stderr=False, cwd=None, input=None,
                 stderr=ensure_text(result.stderr))
     except OSError as e:
         # Avoid leaking tempfiles.
-        if popen_stdout is not None:
+        if popen_stdout is not None and not isinstance(popen_stdout, int):
             popen_stdout.close()
-        if popen_stderr is not None:
+        if popen_stderr is not None and not isinstance(popen_stderr, int):
             popen_stderr.close()
 
         estr = str(e)
diff --git a/rh/utils_unittest.py b/rh/utils_unittest.py
index e6ecc97..ea2ddaa 100755
--- a/rh/utils_unittest.py
+++ b/rh/utils_unittest.py
@@ -206,6 +206,15 @@ class RunCommandTests(unittest.TestCase):
         self.assertNotEqual(0, ret.returncode)
         self.assertIn('a/b/c/d', str(ret))
 
+    def test_check_false_missing_prog_combined_output(self):
+        """Verify handling of combined output capturing w/missing progs."""
+        with self.assertRaises(rh.utils.CalledProcessError) as e:
+            rh.utils.run(['./!~a/b/c/d/'], check=True,
+                         combine_stdout_stderr=True)
+        err = e.exception
+        self.assertNotEqual(0, err.returncode)
+        self.assertIn('a/b/c/d', str(err))
+
 
 if __name__ == '__main__':
     unittest.main()