refs #1059 add ogGetCaller()

client/lib/engine/bin/SystemLib.py

@@ -117,16 +117,33 @@ def ogExecAndLog(*args):
     # Salida de error del comando ejecutado.
     return subprocess.PIPESTATUS[0]
 
+#/**
+#         ogGetCaller
+#@brief   Devuelve nombre del programa o script ejecutor (padre).
+#@return  str_name - Nombre del programa ejecutor.
+#*/
 def ogGetCaller():
-    # Obtener el nombre del programa o del script que ha llamado al proceso actual.
-    output = subprocess.check_output(["ps", "hp", str(os.getppid()), "-o", "args"]).decode("utf-8")
-    lines = output.split("\n")
-    caller = ""
-    for line in lines:
-        if "bash" in line and line.split()[1] != "":
-            caller = line.split()[1]
+    if 'COLUMNS' in os.environ:
+        cols = os.environ['COLUMNS']
     else:
-            caller = line.split()[0].lstrip("-")
+        cols = None
+
+    lines = subprocess.run (["ps", "hp", str(os.getppid()), "-o", "args"], capture_output=True, text=True).stdout.splitlines()
+    if 0 == len (lines):
+        return ''
+
+    line = lines[0]
+    words = line.split()
+    if "bash" in line and len(words)>1:
+        caller = words[1]
+    else:
+        caller = words[0].lstrip("-")
+
+    if cols is None:
+        del (os.environ['COLUMNS'])
+    else:
+        os.environ['COLUMNS'] = cols
+
     return os.path.basename(caller)
 
 def ogHelp(*args):