Ensure config file is closed in case of exceptions

Address code-QL findings.

Signed-off-by: Nicola Sirena <[email protected]>

setup.py

@@ -20,7 +20,9 @@
 
 
 def read(fname):
-    return open(os.path.join(os.path.dirname(__file__), fname)).read()
+    path = os.path.join(os.path.dirname(__file__), fname)
+    with open(path, "r") as file:
+        return file.read()
 
 
 console_scripts = [

src/slurm_plugin/resume.py

@@ -62,7 +62,8 @@ def _get_config(self, config_file_path):
 
         config = ConfigParser()
         try:
-            config.read_file(open(config_file_path, "r"))
+            with open(config_file_path, "r") as config_file:
+                config.read_file(config_file)
         except IOError:
             log.error("Cannot read slurm cloud bursting scripts configuration file: %s", config_file_path)
             raise

src/slurm_plugin/suspend.py

@@ -32,7 +32,8 @@ class SlurmSuspendConfig:
     def __init__(self, config_file_path):
         config = ConfigParser()
         try:
-            config.read_file(open(config_file_path, "r"))
+            with open(config_file_path, "r") as config_file:
+                config.read_file(config_file)
         except IOError:
             log.error("Cannot read slurm cloud bursting scripts configuration file: %s", config_file_path)
             raise