[PATCH v2] rteval: services.py: Fix incorrect detection of container environment

[Punit Agrawal <punitagrawal@gmail.com>]

From: Punit Agrawal <punit1.agrawal@toshiba.co.jp>

rteval mistakenly detects that it is running inside a container even
though it is running directly on the host. On further investigation
this was found to be due to change in behaviour around byte strings
and strings when going from python2 to python3.

In python3 process output (stdout, stderr) for processes executed via
Popen() is retuned as byte strings and byte strings are not equivalent
to strings, i.e., b'' == '' is False.

Update all call sites for Popen() to include "text=True"
argument - this ensures that the process output is returned as a
string.

Signed-off-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
---
v1 -> v2:
* Update Popen() calls to return strings for process output
---
 rteval/sysinfo/services.py | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/rteval/sysinfo/services.py b/rteval/sysinfo/services.py
index 06ff5ae9cd0c..283109b9b234 100644
--- a/rteval/sysinfo/services.py
+++ b/rteval/sysinfo/services.py
@@ -62,11 +62,11 @@ class SystemServices:
             if not [1 for p in reject if fnmatch.fnmatch(servicename, p)] \
                     and os.access(service, os.X_OK):
                 cmd = '%s -qs "\(^\|\W\)status)" %s' % (getcmdpath('grep'), service)
-                c = subprocess.Popen(cmd, shell=True)
+                c = subprocess.Popen(cmd, shell=True, text=True)
                 c.wait()
                 if c.returncode == 0:
                     cmd = ['env', '-i', 'LANG="%s"' % os.environ['LANG'], 'PATH="%s"' % os.environ['PATH'], 'TERM="%s"' % os.environ['TERM'], service, 'status']
-                    c = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+                    c = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
                     c.wait()
                     if c.returncode == 0 and (c.stdout.read() or c.stderr.read()):
                         ret_services[servicename] = 'running'
@@ -81,9 +81,9 @@ class SystemServices:
         ret_services = {}
         cmd = '%s list-unit-files -t service --no-legend' % getcmdpath('systemctl')
         self.__log(Log.DEBUG, "cmd: %s" % cmd)
-        c = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        c = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
         for p in c.stdout:
-            # p are lines like "servicename.service status"
+            # p are lines like b'servicename.service status'
             v = p.strip().split()
             ret_services[v[0].split('.')[0]] = v[1]
         return ret_services
@@ -91,7 +91,7 @@ class SystemServices:
 
     def services_get(self):
         cmd = [getcmdpath('ps'), '-ocomm=', '1']
-        c = subprocess.Popen(cmd, stdout=subprocess.PIPE)
+        c = subprocess.Popen(cmd, stdout=subprocess.PIPE, text=True)
         self.__init = c.stdout.read().strip()
         if self.__init == 'systemd':
             self.__log(Log.DEBUG, "Using systemd to get services status")
-- 
2.32.0