Created helper scripts "utils.py"

utils.py

@@ -0,0 +1,80 @@
+#!/usr/bin/env python3
+"""
+project: Backuppy
+version: 0.9
+file: utils.py
+summary: utilities script
+"""
+
+# Standard library imports
+import time
+
+# local imports
+from languages import english
+from languages import german
+
+# local globals
+LANG_EN = "EN"
+LANG_DE = "DE"
+LANGUAGE = LANG_EN
+class bcolors:
+    """ Define colors for the std. output to console. """
+
+    OK = '\033[92m' #GREEN
+    WARNING = '\033[93m' #YELLOW
+    ERROR = '\033[91m' #RED
+    RESET = '\033[0m' #RESET COLOR
+
+
+def trace(message_txt, prefix_crlf=False, err=False):
+    """ Print a formatted message to std out.
+
+    :param "message_txt"    [in] The message text that should be displayed.
+    :param "prefix_crlf"    [in] If True, a carriage return/line feed will be done prior to the message text.
+    
+    """
+
+    if prefix_crlf:
+        print("\n")
+    if err:
+        print("[  " + bcolors.ERROR + "ERR" + bcolors.RESET + " ] " + message_txt)
+    else:
+        print("[  " + bcolors.OK + "OK" + bcolors.RESET + "  ] " + message_txt)
+
+def get_lang_text(search_str: str):    
+    """ Returns a string from the appropriate language file. """
+    return_str: str = eval("english."  + search_str) 
+    global LANGUAGE
+    if LANGUAGE == LANG_DE:
+        return_str = eval("german."  + search_str)
+    return return_str
+
+def _print(message_txt: str):
+    print("\n" + get_lang_text(message_txt) + "\n")
+    time.sleep(1)
+
+def set_language(language):
+    """ Set global constant "LANGUAGE" to given language ("EN"/"DE"). """
+    global LANGUAGE, LANG_DE, LANG_EN
+
+    if str(language) and language.upper() == LANG_DE:
+        LANGUAGE = LANG_DE
+    else:
+        LANGUAGE = LANG_EN
+
+def query(question_txt: str):
+    try:
+        answer_txt = input(get_lang_text(question_txt) + "\n> ")
+
+        if not answer_txt:
+            answer_txt = "''"
+
+        if answer_txt.upper() == ":Q" or answer_txt == chr(27):
+            trace("Program exited by user-input.")
+            return None
+
+    except KeyboardInterrupt:
+        trace("Program interrupted by user.", prefix_crlf=True, err=True)
+        return None
+
+    return answer_txt