From 41fb417952dc366c950c0ab57893d9791cbcd931 Mon Sep 17 00:00:00 2001
From: Ondrej Samohel <ondrej.samohel@ynput.io>
Date: Thu, 5 Mar 2026 12:35:56 +0100
Subject: [PATCH] :recycle: :wrench: wip on swich to loguru

---
 client/ayon_core/cli.py     | 12 +++--
 client/ayon_core/lib/log.py | 94 ++++++++++++++++++++++++++++++++++++-
 pyproject.toml              |  5 +-
 3 files changed, 103 insertions(+), 8 deletions(-)

diff --git a/client/ayon_core/cli.py b/client/ayon_core/cli.py
index 88c54e6059d..784ba74a06c 100644
--- a/client/ayon_core/cli.py
+++ b/client/ayon_core/cli.py
@@ -24,6 +24,8 @@
 )
 
 
+log = Logger.get_logger("CLI")
+
 @click.group(invoke_without_command=True)
 @click.pass_context
 @click.option(
@@ -332,10 +334,10 @@ def main(*args, **kwargs):
             sys.path.insert(0, path)
     os.environ["PYTHONPATH"] = os.pathsep.join(split_paths)
 
-    print(">>> loading environments ...")
-    print("  - global AYON ...")
+    log.info("loading environments ...")
+    log.debug("[yellow]- global AYON ...[/yellow]")
     _set_global_environments()
-    print("  - for addons ...")
+    log.debug("[yellow]- for addons ...[/yellow]")
     addons_manager = AddonsManager()
     _set_addons_environments(addons_manager)
     _add_addons(addons_manager)
@@ -350,6 +352,6 @@ def main(*args, **kwargs):
         )
     except Exception:  # noqa
         exc_info = sys.exc_info()
-        print("!!! AYON crashed:")
-        traceback.print_exception(*exc_info)
+        log.critical("AYON crashed:", exc_info=exc_info)
+        # traceback.print_exception(*exc_info)
         sys.exit(1)
diff --git a/client/ayon_core/lib/log.py b/client/ayon_core/lib/log.py
index 0c2fe5e2d4d..f810fff3302 100644
--- a/client/ayon_core/lib/log.py
+++ b/client/ayon_core/lib/log.py
@@ -1,3 +1,4 @@
+import contextlib
 import os
 import sys
 import getpass
@@ -7,10 +8,20 @@
 import time
 import threading
 import copy
+from loguru import logger
+from dataclasses import dataclass
 
 from . import Terminal
 
 
+@dataclass
+class ProcessData:
+    hostname: str
+    hostip: str
+    username: str
+    system_name: str
+    process_name: str
+
 class LogStreamHandler(logging.StreamHandler):
     """StreamHandler class.
 
@@ -91,7 +102,88 @@ def format(self, record):
         return out
 
 
-class Logger:
+class Logger():
+    """Logger class.
+
+    This is a wrapper for loguru logger. It is used to provide a unified
+    interface for logging in AYON. It also provides a way to disable logging
+    in some cases, for example when running in a headless environment.
+
+    """
+
+    # Data same for all record documents
+    process_data: ProcessData = None
+
+    @classmethod
+    def get_process_data(cls):
+        """Data about current process which should be same for all records.
+
+        Process data are used for each record sent to mongo database.
+        """
+        if cls.process_data is not None:
+            return copy.deepcopy(cls.process_data)
+
+        if not cls.initialized:
+            cls.initialize()
+
+        host_name = socket.gethostname()
+        try:
+            host_ip = socket.gethostbyname(host_name)
+        except socket.gaierror:
+            host_ip = "127.0.0.1"
+
+        process_name = cls.get_process_name()
+
+        cls.process_data = ProcessData(
+            hostname=host_name,
+            hostip=host_ip,
+            username=getpass.getuser(),
+            system_name=platform.system(),
+            process_name=process_name
+        )
+
+        return copy.deepcopy(cls.process_data)
+
+    @classmethod
+    def get_logger(cls, name=None):
+        return logger.bind(name=name or "__main__")
+
+    @classmethod
+    def get_process_name(cls) -> str:
+        """Process name that is like "label" of a process.
+
+        AYON logging can be used from OpenPyppe itself of from hosts.
+        Even in AYON process it's good to know if logs are from tray or
+        from other cli commands. This should help to identify that information.
+        """
+        if cls._process_name is not None:
+            return cls._process_name
+
+        # Get process name
+        process_name = os.environ.get("AYON_APP_NAME")
+        if not process_name:
+            with contextlib.suppress(ImportError):
+                import psutil
+                process = psutil.Process(os.getpid())
+                process_name = process.name()
+
+        if not process_name:
+            process_name = os.path.basename(sys.executable)
+
+        cls._process_name = process_name
+        return cls._process_name
+
+    @classmethod
+    def set_process_name(cls, process_name: str) -> None:
+        """Set process name for mongo logs."""
+        # Just change the attribute
+        cls._process_name = process_name
+        # Update process data if are already set
+        if cls.process_data is not None:
+            cls.process_data.process_name = process_name
+
+
+class Legacy_Logger:
     DFT = '%(levelname)s >>> { %(name)s }: [ %(message)s ] '
     DBG = "  - { %(name)s }: [ %(message)s ] "
     INF = ">>> [ %(message)s ] "
diff --git a/pyproject.toml b/pyproject.toml
index 5434cbbf667..64f761a6fa1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,7 @@ dependencies = [
     "pytest-print >=1.0.0",
     "ayon-python-api >=1.0.0",
     "arrow ==0.17.0",
-    "ruff >=0.11.7",
+    "ruff >=0.15.4",
     "pre-commit >=4.0.0",
     "codespell >=2.2.6",
     "semver >=3.0.2",
@@ -34,7 +34,8 @@ dependencies = [
     "speedcopy >=2.1.0",
     "qtpy >=2.4.3",
     "pyside6 >=6.5.2",
-    "pytest-ayon @ git+https://github.com/ynput/pytest-ayon.git"
+    "pytest-ayon @ git+https://github.com/ynput/pytest-ayon.git",
+    "loguru (>=0.7.3,<0.8.0)"
 ]
 
 [tool.codespell]