From a0a50442f72c6ca677b27161a7f85be783419ad4 Mon Sep 17 00:00:00 2001
From: Eric Callahan <arksine.code@gmail.com>
Date: Tue, 25 Jul 2023 16:27:11 -0400
Subject: [PATCH] server: add support for enironment variables

Allow all command line arguments to be specificed as an
environment variable.  If both the command line argument
and environment variable is present the command line argument
takes precedence.

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>
---
 moonraker/server.py | 47 ++++++++++++++++++++++++++++++++++-----------
 1 file changed, 36 insertions(+), 11 deletions(-)

diff --git a/moonraker/server.py b/moonraker/server.py
index cc498fe..18c6340 100755
--- a/moonraker/server.py
+++ b/moonraker/server.py
@@ -474,37 +474,62 @@ class Server:
         }
 
 def main(from_package: bool = True) -> None:
+    def get_env_bool(key: str) -> bool:
+        return os.getenv(key, "").lower() in ["y", "yes", "true"]
+
     # Parse start arguments
     parser = argparse.ArgumentParser(
         description="Moonraker - Klipper API Server")
     parser.add_argument(
-        "-d", "--datapath", default=None,
+        "-d", "--datapath",
+        default=os.getenv("MOONRAKER_DATA_PATH"),
         metavar='<data path>',
         help="Location of Moonraker Data File Path"
     )
     parser.add_argument(
-        "-c", "--configfile", default=None, metavar='<configfile>',
-        help="Path to Moonraker's configuration file")
+        "-c", "--configfile",
+        default=os.getenv("MOONRAKER_CONFIG_PATH"),
+        metavar='<configfile>',
+        help="Path to Moonraker's configuration file"
+    )
     parser.add_argument(
-        "-l", "--logfile", default=None, metavar='<logfile>',
-        help="Path to Moonraker's log file")
+        "-l", "--logfile",
+        default=os.getenv("MOONRAKER_LOG_PATH"),
+        metavar='<logfile>',
+        help="Path to Moonraker's log file"
+    )
     parser.add_argument(
-        "-u", "--unixsocket", default=None, metavar="<unixsocket>",
+        "-u", "--unixsocket",
+        default=os.getenv("MOONRAKER_UDS_PATH"),
+        metavar="<unixsocket>",
         help="Path to Moonraker's unix domain socket"
     )
     parser.add_argument(
-        "-n", "--nologfile", action='store_true',
-        help="disable logging to a file")
+        "-n", "--nologfile",
+        action='store_const',
+        const=True,
+        default=get_env_bool("MOONRAKER_DISABLE_FILE_LOG"),
+        help="disable logging to a file"
+    )
     parser.add_argument(
-        "-v", "--verbose", action="store_true",
+        "-v", "--verbose",
+        action='store_const',
+        const=True,
+        default=get_env_bool("MOONRAKER_VERBOSE_LOGGING"),
         help="Enable verbose logging"
     )
     parser.add_argument(
-        "-g", "--debug", action="store_true",
+        "-g", "--debug",
+        action='store_const',
+        const=True,
+        default=get_env_bool("MOONRAKER_ENABLE_DEBUG"),
         help="Enable Moonraker debug features"
     )
     parser.add_argument(
-        "-o", "--asyncio-debug", action="store_true",
+        "-o", "--asyncio-debug",
+        action='store_const',
+        const=True,
+        default=get_env_bool("MOONRAKER_ASYNCIO_DEBUG"),
         help="Enable asyncio debug flag"
     )
     cmd_line_args = parser.parse_args()