From 846160e961a03462b1e94336f6367fad55295bc9 Mon Sep 17 00:00:00 2001
From: Corentin Risselin <corentin-pro@mail.com>
Date: Fri, 6 Mar 2020 14:05:09 +0900
Subject: [PATCH] Initial commit

---
 utils/colored_formatter.py | 24 ++++++++++++++++
 utils/console_color.py     | 13 +++++++++
 utils/logger.py            | 58 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 95 insertions(+)
 create mode 100644 utils/colored_formatter.py
 create mode 100644 utils/console_color.py
 create mode 100644 utils/logger.py

diff --git a/utils/colored_formatter.py b/utils/colored_formatter.py
new file mode 100644
index 0000000..ce8f845
--- /dev/null
+++ b/utils/colored_formatter.py
@@ -0,0 +1,24 @@
+"""Formatter changing logger's record levelname to have colors in the console"""
+
+
+import logging
+
+from .console_color import ConsoleColor
+
+
+class ColoredFormatter(logging.Formatter):
+    """Formatter changing the record during format : adds colors to levelname"""
+    def format(self, record):
+        levelno = record.levelno
+        if logging.ERROR == levelno:
+            levelname_color = ConsoleColor.RED + record.levelname + ConsoleColor.ENDCOLOR
+        elif logging.WARNING == levelno:
+            levelname_color = ConsoleColor.ORANGE + record.levelname + ConsoleColor.ENDCOLOR
+        elif logging.INFO == levelno:
+            levelname_color = ConsoleColor.GREEN + record.levelname + ConsoleColor.ENDCOLOR
+        elif logging.DEBUG == levelno:
+            levelname_color = ConsoleColor.BLUE + record.levelname + ConsoleColor.ENDCOLOR
+        else:
+            levelname_color = record.levelname
+        record.levelname = levelname_color
+        return logging.Formatter.format(self, record)
diff --git a/utils/console_color.py b/utils/console_color.py
new file mode 100644
index 0000000..b2c8e1b
--- /dev/null
+++ b/utils/console_color.py
@@ -0,0 +1,13 @@
+"""Colors for termial outputs"""
+
+
+class ConsoleColor(object):
+    """Simple shortcut to use colors in console"""
+    HEADER = '\033[95m'
+    BLUE = '\033[94m'
+    GREEN = '\033[92m'
+    ORANGE = '\033[93m'
+    RED = '\033[91m'
+    ENDCOLOR = '\033[0m'
+    BOLD = '\033[1m'
+    UNDERLINE = '\033[4m'
diff --git a/utils/logger.py b/utils/logger.py
new file mode 100644
index 0000000..e6f92c4
--- /dev/null
+++ b/utils/logger.py
@@ -0,0 +1,58 @@
+from logging import handlers, StreamHandler
+import logging
+import os
+import sys
+
+from .colored_formatter import ColoredFormatter
+
+
+class DummyLogger():
+    def debug(self, string, *args):
+        print(string, *args)
+
+    def info(self, string, *args):
+        print(string, *args)
+
+    def warn(self, string, *args):
+        print(string, *args)
+
+    def warning(self, string, *args):
+        print(string, *args)
+
+    def error(self, string, *args):
+        print(string, *args)
+
+    def critical(self, string, *args):
+        print(string, *args)
+
+    def fatal(self, string, *args):
+        print(string, *args)
+
+
+def create_logger(name, log_dir, stdout=False):
+    logger = logging.getLogger(name)
+    os.makedirs(log_dir, exist_ok=True)
+    # Adding a (rotating) file handler to the logging system : outputing in capture.log
+    logger.setLevel(logging.DEBUG)
+    file_log_handler = handlers.RotatingFileHandler(
+        os.path.join(log_dir, name + '.log'),
+        maxBytes=500000,
+        backupCount=5)
+    file_log_handler.setLevel(logging.DEBUG)
+    log_formatter = logging.Formatter('%(asctime)s %(levelname)s : %(message)s')
+    file_log_handler.setFormatter(log_formatter)
+    logger.addHandler(file_log_handler)
+
+    if stdout:
+        # Adding an handler to the logging system (default has none) : outputing in stdout
+        terminal_log_handler = StreamHandler(sys.stdout)
+        terminal_log_handler.setLevel(logging.DEBUG)
+        if os.name != 'nt':
+            # Fancy color for non windows console
+            colored_log_formatter = ColoredFormatter('%(asctime)s %(levelname)s : %(message)s')
+            terminal_log_handler.setFormatter(colored_log_formatter)
+        else:
+            terminal_log_handler.setFormatter(log_formatter)
+        logger.addHandler(terminal_log_handler)
+
+    return logger