From 813bec2bab0c3a569a92cebb58df7cb320a90c15 Mon Sep 17 00:00:00 2001
From: Tom Keffer <tkeffer@gmail.com>
Date: Fri, 21 Oct 2022 16:47:25 -0700
Subject: [PATCH] Post the top-level entry point to the station registry

Relates to PR #705. Posts the location of the top-level module to
the station registry, as well as the location of the configuration
file.
---
 bin/weecfg/__init__.py |  2 ++
 bin/weewx/restx.py     | 10 +++++++++-
 docs/changes.txt       |  4 ++--
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/bin/weecfg/__init__.py b/bin/weecfg/__init__.py
index 7510b36f..9d451ba5 100644
--- a/bin/weecfg/__init__.py
+++ b/bin/weecfg/__init__.py
@@ -159,6 +159,8 @@ def read_config(config_path, args=None, locations=DEFAULT_LOCATIONS,
 
     # Remember where we found the config file
     config_dict['config_path'] = os.path.realpath(config_path)
+    # Find the top-level module. This is where the entry point will be.
+    config_dict['entry_path'] = getattr(sys.modules['__main__'], '__file__', 'Unknown')
 
     return config_path, config_dict
 
diff --git a/bin/weewx/restx.py b/bin/weewx/restx.py
index 49013205..3743cc11 100644
--- a/bin/weewx/restx.py
+++ b/bin/weewx/restx.py
@@ -1398,7 +1398,8 @@ class StdStationRegistry(StdRESTful):
         weewx_info       weewx version
         python_info
         platform_info
-        config_path
+        config_path      Where the configuration file is located.
+        entry_path       The path to the top-level module (usually where weewxd is located)
 
     The station_url is the unique key by which a station is identified.
     """
@@ -1432,6 +1433,7 @@ class StdStationRegistry(StdRESTful):
         _registry_dict.setdefault('longitude', self.engine.stn_info.longitude_f)
         _registry_dict.setdefault('station_model', self.engine.stn_info.hardware)
         _registry_dict.setdefault('config_path', config_dict.get('config_path', 'Unknown'))
+        _registry_dict.setdefault('entry_path', config_dict.get('entry_path', 'Unknown'))
 
         self.archive_queue = queue.Queue()
         self.archive_thread = StationRegistryThread(self.archive_queue,
@@ -1457,6 +1459,7 @@ class StationRegistryThread(RESTThread):
                  station_type="Unknown",
                  station_model="Unknown",
                  config_path="Unknown",
+                 entry_path="Unknown",
                  post_interval=86400,
                  timeout=60,
                  **kwargs):
@@ -1478,6 +1481,8 @@ class StationRegistryThread(RESTThread):
           config_path (str): location of the configuration file, used in system
             registration to determine how weewx might have been installed.
             Default is 'Unknown'.
+          entry_path (str): location of the top-level module that was executed. Usually this is
+            where 'weewxd' is located. Default is "Unknown".
           station_model (str): The hardware model, typically the hardware_name property provided
            by the driver. Default is 'Unknown'.
           post_interval (int): How long to wait between posts.
@@ -1500,6 +1505,7 @@ class StationRegistryThread(RESTThread):
         self.station_type = station_type
         self.station_model = station_model
         self.config_path = config_path
+        self.entry_path = entry_path
 
     def get_record(self, dummy_record, dummy_archive):
         _record = {
@@ -1513,6 +1519,7 @@ class StationRegistryThread(RESTThread):
             'platform_info': platform.platform(),
             'weewx_info': weewx.__version__,
             'config_path': self.config_path,
+            'entry_path' : self.entry_path,
             'usUnits': weewx.US,
         }
         return _record
@@ -1526,6 +1533,7 @@ class StationRegistryThread(RESTThread):
                 'python_info': 'python_info=%s',
                 'platform_info': 'platform_info=%s',
                 'config_path': 'config_path=%s',
+                'entry_path': 'entry_path=%s',
                 'weewx_info': 'weewx_info=%s'}
 
     def format_url(self, record):
diff --git a/docs/changes.txt b/docs/changes.txt
index 4a954e61..4567a839 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -46,8 +46,8 @@ See the User's Guide. Resolves issue #730.
 Fix problem that prevented wee_reports from using a default location
 for weewx.conf.
 
-Post location of configuration file to the station registry. Thanks to Vince!
-PR #705.
+Post location of the configuration file and the top-level module to the station
+registry. Thanks to Vince! PR #705.
 
 Fix minor install warning under Python 3.10. Fixes issue #799.