task/internal/__init__.py: improve core program extraction

Problem:
The previous technique for extracting the program name
of the coredump file doesn't deal with the case
where there is no white space after program name
e.g.,

``SVR4-style, from 'ceph_test_rados_api_io', real uid: 1000``

here we will get an error when we reach the part where we

``remote.sh(['which', dump_program]).rstrip()``.

Solution:

Use regex to extract first occurence of the word that
is in the format ``from '<word>'``.

Signed-off-by: Kamoltat Sirivadhna <ksirivad@redhat.com>

diff --git a/teuthology/task/internal/__init__.py b/teuthology/task/internal/__init__.py
index 041964d38c13fcae338724e2cb13b505aebab66f..0fb5b203deb03abeb3fc62a469352dbbec3da1b6 100644 (file)
--- a/teuthology/task/internal/__init__.py
+++ b/teuthology/task/internal/__init__.py
@@ -13,7 +13,7 @@ import time
 import yaml
 import subprocess
 import tempfile
-
+import re
 import humanfriendly
 
 import teuthology.lock.ops
@@ -335,7 +335,7 @@ def fetch_binaries_for_coredumps(path, remote):
                     log.error(e)
                     continue
             try:
-                dump_program = dump_out.split("from '")[1].split(' ')[0]
+                dump_program = re.findall("from '([^']+)'", dump_out)[0]
                 log.info(f' dump_program: {dump_program}')
             except Exception as e:
                 log.info("core doesn't have the desired format, moving on ...")